Note: Speciﬁcations and prices are subject to change for■Head office/Sales division
improvement without prior notices.
5-8-17 Shioe, Amagasaki-city, Hyogo 661-0976
All rights reserved.
Tel.+81-6-6429-6144 Fax.+81-6-6429-0016■Tokyo Branch
Nikko-Ozu Bldg. 3-9-4 Nihonbashi-Honcho, Chuo-ku,Tokyo 103-0023
Tel.+81-3-3662-2715 Fax.+81-3-3662-2716■Nagoya sales office
NT Bldg. 2-15-8 Nakata, Chigusa-ku, Nagoya 464-0074
Tel.+81-52-386-8318 Fax.+81-52-386-8317■Sendai sales office
Ohku-Sendai Bldg. 2-5-1 Honcho, Aoba-ku, Sendai 980-0014
Tel.+81-22-265-9378 Fax.+81-22-713-6392■URL : https://www.hasegawa-elec.co.jp■E-mail: infor@hasegawa-elec.co.jp
CATALOGUE-H01-0005-5 '23.5.2000D

検電器カタロ�_英語版_Vol3-3(P80).indd 1（C）2023 HASEGAWA Electric Co.,Ltd. All rights reserved.

2023/03/30 18:21

GENERAL CATALOGUE Vol.3-3
Voltage detector
Auxiliary device for voltage detection
Voltage detector checker
Phase tester
Grounding hook
Discharge stick
Discone hook stick
Illuminator
Measuring instrument
Railway products

https://www.hasegawa-elec.co.jp

検電器カタロ�_英語版_Vol3-3(P80).indd 2

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W
in
an

So
int
ob
ch
de
To
ed
the
Th
be
cu
me
pro
Th
he
rea

Rising to New Challenges as a Pioneer
HASEGAWA ground-fault relays, voltage detectors, phase testers, and measuring
instruments are essential to protect the safety of human lives and our society.
In this age of electronics, one that continues to progress in complexity, the importance of these products are increasing at an alarming rate.
From extra-high voltage to low-voltage products and AC to DC products used ina variety of scenes from power companies, railway companies, and FA factories
for manufacturing companies to various households, our company’s products playa key role in creating safe electrical environments.

We contribute to“safe electricity”
by providing high-level technical skills
and wholehearted devotion.
We make full use of our sensing technology
to make greater leaps in our development.
Since its founding in 1925, our company has strived

customers, which include many infrastructure-related

to develop and produce products that are key toenterprises that support people’s lives, such as power,

creating safe electrical environments through prod-gas, sewer, railroad, and communication companies,

ucts such as ground-fault relays, voltage detectors,

and in the future, we would like to make full use of ourand phase testers.

sensing technology to make great leaps in our develop-

As a result, we have been able to establish

ment. We at Hasegawa believe that it is our social duty

ourselves as the top manufacturer in the voltage

to create “a society free of electrical accidents”, and it

detector ﬁeld, and through our original research andis our intention to continue this duty with untiring

technology in both AC and DC relays, we haveeﬀorts. It is our hope that you will continue to support

developed one-of-a-kind products and have received

and guide us in our endeavors from now and into thehigh praise. This is simply a result of our thoroughfuture.

application of “worksite principles”, and it is precisely because our entire company takes a position ofwholeheartedly responding to the demands of ourcustomers under the motto of “the truth is in theworksite” that we have been able to grow as a
total-solutions consulting company for “electricalsafety”.
Additionally, in recent years we have been grabbing

PRESIDENT

attention in the overseas market and not just inJapan. Notably, in Southeast Asia, the HASEGAWA
brand is recognized as proof of safety and reliability.
We take pride in being able to contribute to our

Yojiro Yoshida1

検電器カタロ�_英語版_Vol3-3(P80).indd 3

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We are in constant pursuit of technological innovationin order to create a society of comfortable
and safe electronics.
Society ever marches forward, and globally, changes are occurring at such an
intensely rapid rate that even the words “IT” and “ digital” are becoming
obsolete in the world of electronics. HASEGAWA is able to respond to thechanges of these times while continuing to be the top manufacturer of voltage
detectors and relay-related products now and into the future.
To achieve this, we are resolved to never feel satisﬁed with our current knowledge and technology, and we are engaged in research and development withthe aim of creating technology for the next generation and beyond.
The ﬁrst step of creating ideas for the future starts from our “worksite”. We
begin by accurately understanding product usage and the demands of ourcustomers. Following this, we continue to listen to our customers and implement their opinions through our processes of development and design,
production, quality control, and sales…
Through this constant, cyclical workﬂow, HASEGAWA aims for greater
heights and is working to make “a society free of electrical accidents” areality.
At HASEGAWA, our work never stops.
Through a never-ending cycle of activity,
we respond to the demandsof the next generation.
We develop our products after giving
our full attention to the opinions of ourcustomers and thoroughly analyzing
what is being demanded by the market
and the times.

We walk in step with our customers andprovide support through a 24-hour full-support
system. We support our customers throughreliable consulting.

Development

ClientDesignSales

Production
We take the needs of ourcustomers and when
products will be used into
account to realize a
production system that isable to quickly get
products on the market.

Quality
Not only do we sell products,
we also regularly makeproposals that can contributeto the work of our customers.

We work with the ideas of the
product being developed andproceed with design thatconsiders a variety of
applications. We also takeuniversal design into account andpursue ease of use.

We implement strict producttesting and checks thatreﬂect the reliability of the
HASEGAWA brand to deliverproducts with conﬁdence.

22

検電器カタロ�_英語版_Vol3-3(P80).indd 42023/03/30 18:21

Company Overview

Founded:July 1925

Established:

September 20, 1971

Capital:41.6 million yen(authorized capital: 64 million yen)
Chairman : Osamu Yoshida

Representatives:

President : Yojiro Yoshida[Locations]
5-8-17, Shioe, Amagasaki-city, Hyogo 661-0976
TEL: +81-6-6429-6144 FAX: +81-6-6429-0016
JR: (071) 3710 FAX: (071) 3710
Nikko-Ozu Bldg. 3-9-4 Nihonbashi-Honcho, Chuo-ku,
Tokyo Branch:
Tokyo 103-0023
TEL: +81-3-3662-2715 Fax: +81-3-3662-2716
Nagoya Sales Oﬃce: NT Bldg. 2-15-8 Nakata, Chigusa-ku, Nagoya
464-0074
Tel: +81-52-386-8318 Fax: +81-52-386-8317
Sendai Sales Oﬃce: Ohku-Sendai Bldg. 2-5-1 Honcho, Aoba-ku, Sendai
980-0014
Tel: +81-22-265-9378 Fax: +81-22-713-6392
General Testing Oﬃce: 5-6-20, Shioe, Amagasaki-city, Hyogo 661-0976

We work with our group company to aid[Coin providing stable electrical power.

We work with our group company to contribute to the stability andsafety of electrical power supply with a focus on relays, voltage
detectors, and other devices that are essential for the protection andmaintenance of devices related to electrical power and industrial
equipment as well as solar power generation.

Head Oﬃce:

Hasegawa ElectricCo., Ltd.

OTOWA
GROUP
OTOWA ELECTRIC
CO., LTD.

NIP Engineering
Co., Ltd.

[Business Contents]
Voltage detectors: Low voltage detectors, high voltage detectors,
extra-high voltage detectors, DC voltage detectors,
and other auxiliary devices for voltage detection
Phase testers:

Low voltage phase testers, high voltage phase testers,
extra-high voltage phase testers

Relays:Bus relays, ground-fault directional relays, ground-fault
overvoltage relays, high voltage ground-fault relays,
short-circuit relays, DC ground-fault relays, etc.

Current transformers: Zero-phase current transformers
Grounding transformers: Low voltage grounding transformers, high voltage
grounding transformers
Measuring instrument-related: Leakage monitors, ωC measuring instruments, etc.
Grounding tools: Grounding hook sticks, discharge sticks
LED-related:
Other:

Working lights, helmet lights, etc.

Consulting related to ground-fault relay systems,
measuring systems, etc.
Research, design, and production for co-developmentwith customers[Major Clients]
Various power companies and related enterprises, various electrical safety
associations, various electric construction ﬁrms, various companies related
to Japan Railways and private railways, NTT, electronic material trading
ﬁrms, etc.
[Banks]OTOWA ELECTRIC CO., LTD.
Provides total solutions for lightning-related products, including lightning-resistantelements,the ﬁrst SPDs for direct lightning hits in Japan, SPDs for power sources, andlightning-resistant transformers.

NIP Engineering Co., Ltd.
Provides total solutions for anti-lightning measures, including the manufacture, sales,
design, construction, and lightning-damage solutions consultation for lightning arrestor
equipment (lightning rods), as well as the maintenance of solar power generation
systems

Ceraon Co., Ltd.
Manufactures and sells ceramic devices

Meneon Co., Ltd.
Performs electrical work as well as maintenance and management for electricalfacilities

Geological Assessment Tech Co., Ltd.
[Geological survey and water quality survey], [grounding design, grounding resistance
reduction work and consulting], [planning, design, and consultation of external andinternal lightning protection measures]

Otowa Korea Co., Ltd.
Sells various lightning arrestors as well as other electronic machinery and devices.

MUFG Bank, Amagasaki Ekimae Branch
Resona Bank, Dojima Branch
Sumitomo Mitsui Bank, Umeda Branch

3

検電器カタロ�_英語版_Vol3-3(P80).indd 5

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[Aw

and
age
and
rial

ant
and

les,
stor
tion

ical

nce
and

Our Company’s Journey[Company History]
1925

Founded in Osaka as the Hasegawa Toshihiko Trading Company

1942

Moves to Higashi Yodogawa, Osaka. Begins development andImports and sells relays, fuses, and voltage detectors
manufacture of bus relays and other ground-fault protection
relays as well as voltage detectors

1949
1971

Reorganizes as Hasegawa Electric Co., Ltd. (Hasegawa Denki)
Changes trade name to Hasegawa Electric Co., Ltd. (Hasegawa
Denki Kogyo) Kametaro Yoshida becomes President andRepresentative Director

1975
1986
1995
1996

Begins sale of the “HS-7 audible, light-emitting voltage detector”
Osamu Yoshida becomes President and Representative Director
Issues “The Great Hanshin Earthquake for Our Company”
Begins sale of the “HT-610α low voltage detector”

1997

Begins sale of the “RRG-1 ωC measurement type ground fault

1999

The HT-600 series of low voltage detectors achieves 1 million

2001

Receives ISO 9001 certiﬁcation

2003
2008
2011
2013
2014

units in sales
Receives ISO 14001 certiﬁcation
Main factory moves to Shioe, Amagasaki City
Issues the technical periodical “Understanding ωC Ry”
Establishes Sendai Sales Oﬃce
Tatsuo Matsuoka becomes President and Representative Director

2015

First appearance at the Korea Expo (actively participates in

2017

Head oﬃce and factory moves to new building

2018

Shibusawa Awards

protection relay”

international exhibitions after this)Yojiro Yoshida becomes President and Representative Director[Awards Received]
1981
1983
1986

“HS Series” wins award at the Japan Electrical Construction and Materials Fair
“HP Series” wins award at the Japan Electrical Construction and Materials Fair

1988

“HSS-6 voltage detector” wins award at the Japan Electrical Construction and1989“HT-610 voltage detector” selected for the Good Design Award G Mark

1990

Materials Fair
“HPI-A6 phase tester” wins award at the Japan Electrical Construction and Materials Fair

1993

“HX-6 hot line proximity alarm” wins award at the Japan Electrical

1993“HST Series voltage detector” selected for the Good Design Award G Mark

Construction and Materials Fair

1994

“VG-UI2T instant ground-fault directional relay” wins award at the Japan

1995“Research and development of wireless voltage detectors and phase testers”

1996“Development of ωC measurement type ground fault protection relay

1996“HT-610α voltage detector” wins Good Design Award Commissioner’s Special

1999“Development of lead-less voltage detectors” wins the Shibusawa Award

1999
2000
2001

Electrical Construction and Materials Fair
wins the Shibusawa Awardequipment” wins Ohm Technology Award
Prize for Products of Small and Medium Enterprises

The Small and Medium Enterprise Agency’s 300 Small andMedium Enterprises Engaged in Spirited Manufacturing“RRG-1B relay” wins award at the Japan Electrical Construction and Materials Fair
“Lead-less phase tester” wins award at the Japan Electrical Construction and Materials Fair
“Development of extendable voltage detectors” wins the Shibusawa Award

2003“HSE-7T voltage detector for high voltage” wins award at the Japan Electrical

2005“RRG-3 ωC measurement type ground fault protection relay” wins the2007

Selected as one of the Small and Medium Enterprise Agency’s “300 Small

2007“HT-610α voltage detector” wins Good Design/Long Life Design Award

2010

Various awards from the Japan Electrical Construction Association“HT-600 voltage detector” selected for the Good Design Award G Mark

Construction and Materials Fair
Shibusawa Award
and Medium Enterprises Engaged in Spirited Manufacturing”
Recognized as a leading technology enterprise in the Southern Hanshin area

2013

“Development of contactless AC voltage detectors” wins Railway Electrical

2013“HXR contactless AC voltage detector” wins award at the Japan Electrical2014

Presented with a “Certiﬁcate of Excellence in Declaration as a Corporation” by

Engineering Award
Construction and Materials Fair
the Amagasaki Tax Oﬃce

Ohm Technology AwardGood Design
Commissioner’s Special Prize
for Products of Small andMedium Enterprises

4

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High voltage
Voltage detector P.22 to 26
Portable live part detector P.28
Phase tester P.37 to 38
Grounding hook P.39 to 45
Discone hook rod P.46

Wind force power generation system

For electric substation equipment
Extra-High Voltage Detecting System(VOLTECT) P.51 to 52

Hydroelectric power planthigh voltage substation
154kV～187kV

66

Primary substation

275kV～500kV

Nuclear power plant

Thermal electric power plant

5

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Low voltage
Voltage detector P.15 to 17
Phase tester P.35

For photovoltaic power generation system (DC)
Voltage detector P.17 to 18, 21

Medium voltage
100～440V
6.6kV～36kV

66kV～77kV

Substation for electric power distribution
6.6kV～36kVElectricity distribution lines

Shopping street

Residences

6.6kV～36kV

Factories
Buildings
Voltage detector P.19 to 28
Phase tester P.35 to 38
Hot line proximity detector P.29 to 32
Portable live part detector P.28

Grounding hook P.39 to 45
Discharge stick P.47 to 48
Discone hook stick P.46

CommonVoltage detector checker
P33

For railways (conventional railroad lines, bullet train, monorail)
Voltage detector P.53 to 57
Grounding hook P.58

Medium voltage hot line proximity
detector P.57

Illuminator P.51

For receiving plant equipment
Extra-High Voltage Detecting System(VOLTECT) P.49 to 50

LED working light (rechargeable type)
EWL-4 Ecopika-kun

6

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APPLICATIONS

HST series
Medium voltage and high voltage detector

HXA-6
Hot line proximity detector(Armband type)

P.22

HTE-610W
Low voltage detector

P.15

P.31

HPL-200
LV phase checker
P.35(Insulated wire clamping type)U

7

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APPLICATIONS

P.15

HPseries
Medium voltage phase tester
Wireless type

P.38

HXA-6SHot line proximity detector P.31
(Helmet fixing type)

HPI-A6
Medium voltage phase tester(Optical fiber type)

P.36

Type H
Grounding hook set
P.44
Universal type for cubicle

HXW-6W
Hot line proximity detector P.30
(Wrist band type)
8

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APPLICATIONS
DC railway

HSN-6A1
Voltage detector for LV and MV P.21

HVC-1.5N3(For railways)
Voltage detector for
DC railway

Grounding hook
for railways

P.53

P.58

EWL-4
LED working light
Ecopika-kun

P.51

9

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APPLICATIONSAC railway

HST-L series
Medium voltage and high voltage detector

HXR-25J(For Shinkansen)
Medium voltage hot-line proximity detector

HST-W80JS
Voltage detector for
AC railway

P.24

P.57

P.57

10

検電器カタロ�_英語版_Vol3-3(P80).indd 122023/03/30 18:22

①

HTE-610W②

Low voltage detector③④

Low Voltage Detector, New model coming !

AC 50～1000V
Audio
signaling
and light
emitting

Voltage
Contact tip Sensitivity detection
through
Conductive
covering
adjustment
rubber(sheath)RoHS■Specifications

2.Desighned with user safety and security in mind
・Conductive rubber provides a high level of safety
・CAT Ⅲ 1000V

Phase tester■Dimensions: HTE-610W

22

130

Sound
emission Test button
partLight indicator

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Clip(grip)⑤

23

Grounding hook

Contacttip①Product type

②Product nameHTE-610W
AC50V～1000V 50/60Hz
Between contact tip and clip(grip): 100MΩ minimum with a 500V megger
Ditto:2000V-1 minute
Ditto:100μA maximum
Ditto:8000V-10 cycles of positive / negative (IEC61010-1 CAT Ⅲ 1000V equivalent)
The light is switched “ON”or“OFF”by pushing the test button.
Lighting
The light is turned off automatically about 30 seconds after the light is turned on. (Automatic power off)
(HTE-610WL only)※The voltage detector operator regardless of the light turned ON or OFF.
Maximum sensitivity: AC40V maximum
Minimum sensitivity: Not operation at AC100V
Operation starting voltage
Operation at AC200V(Voltage to ground)
Ex-Factory: AC40V±10V(when the contact tip is in contact with an internal standard insulated cable (600V-IV2mm2)Light: Intermittent red light visible in 8000lx ambient
Operation status display
Sound: Intermittent sound of 50dB minimum in 30cm distance
0℃～＋40℃
Operating temperature range
22g(including batteries)
Wight
2 alkaline button cells LR44(1.5V)
Battery
New battery : In continuous operation 10 hours
Battery life
: In storage 1.5 years
Model
Working voltage range
Insulation resistanceDielectric strength
Leakage current
Impulse withstand■Features
1.Highly conveninet
・Voltage detection through covering(sheath)・Sensitivity adjustment

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

How to read this catalog③Working voltage range④Marking
Audio
signaling
and light
emitting

Audio signaling and lightemitting
Action is notified bysound and light.

Contact tip Contact tip - Conductive rubber
Conductive
rubberConductive rubber tip prevents accident of short circuitContact tip Contact tip - made ofmade of
Conductive resin

Conductive resin
Short circuit prevention.
Conductivity is easy to
be maintained.

Contact tip Contact tip - Replaceable
Detector tips are sold
Replaceable

AC
DC

AC DC

The product is usable
for both AC and DC.

Waterproof Waterproof equivalentequivalent to to IPX4
IPX4
Protection
againstVoltage detection over the
insulation *AC only
Voltage detection overthe insulation not possible for DC

Waterproof Water-resistant struc-only for only for bare wire
be used for bare conbare wire Can
ductor only. Can not beBattery Battery-lessbattery is used for-less No
operation.

LED LED lighting
lamp is equipped tolighting LED
light the target location

Auxiliarydevice forvoltagedetection*AC only

Voltagedetection
throughcovering(sheath)used for insulated conductor.

Sensitivity Sensitivity adjustment
can be adadjustment Sensitivity
justed by turning thevolume knob.

of voltage detection.

This marking is for
products for the EU
market, conforming relevant standard.

telescopic.

Voltage detection over insulation
Voltage can be detected
over the insulation sheath.
(Not possible for shieldedcables.)Voltagedetection
throughcovering(sheath)CE

Telescopic type

Telescopic
The operating rod is
typesplashes

RoHS

marking is to conRoHS The
firm satisfaction of the
RoHS regulation.

IEC

Waterproof

ture for rain and waterdrops

In Comformity to IEC
IEC61243-1

Auxiliary device forvoltage detection
The product is not a
voltage detector, but
is used to assist voltage detection work.

⑤Battery life -----The battery supplied with product is for testing, this battery life shall not be applied.

11

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Auxiliary device for voltage detection◇Hot line proximity detector
HXG-1
HXC-3K
HXW-6W
HXW-6WL
HXA-6
HXA-6S
HXA-30
HXA-30S
HXA-70
HXA-70S
HLA-1A
HLA-2G
HLA-N2
HLA-3

Voltage detector checker

28
28
30
30
31
31
32
32
32
32
33
33
33
33

HSH-K6
SA109 series
D series

Discone hook stick

HRD-27S
HRD-27

Discharge stick

46
46
46

Order made Discharge stick

47
48
48

Measuring instrument
VOLTECT / Extra-High Voltage Detecting System

49

Illuminator
EWL-4/LED working light51

Railway products◇Voltage detector
HVC-1.5N3
HVC-750N3
HVC-1.5N3S
HVC-1.5N3M
HS-1.5NJ
HS-1.5NR
HST-W80JS

53
54
55
55
56
56
57

◇Auxiliary device for voltage detection
HXR-20J
HXR-25J

57
57◇Grounding hook
SA106A Series

58

Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker
Phase tester

23
23
23
23
24
24
24
25
25
26
26
27

42
42
43
43
43
43
44
44
45
45
45

Grounding hook

◇Medium voltage & high voltage detector
HST-30W
HWB-35
HWB-138
HWB-550
HST-30L
HST-70L
HST-W80L
HS-500
WM Series
HST-20N
HS-90N
HWA-33X

Grounding hook
List of ﬁxed types
List of detachable types
Type ZType ZB
Type YType YB
Type H
Type HA
Type CType F
Type S

Discone hook stick

19
19
20
20
21
21
22
22
22
22

Discharge stick◇Voltage detector for medium & low voltages
HSF-11
HSE-7G
HSS-25B1
HSG-6
HSN-6A1
HST-1.5N
HST-30
HST-70
HST-170
HST-250

Measuring
instrument

17
17

36
37
38
38
38
38

Illuminator◇Low voltage detector [For AC/DC]
HTE-700D／DL
HT-67035

Railway products

15
15

Phase tester◇For low voltage
HPL-200◇For medium voltages
HPI-A6/S6/S20
HPI-S20W
HP-U3/S3/T3
HP-U6/S6/T6
HP-U20/S20
HP-22VR

Information materials

Voltage detector◇Low voltage detector [For AC]
HTE-610W/volcheck
HTE-610WL/volcheck (with LED light)

Index etc.

Product list12

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Index etc.

Voltage Detectors as per working voltages■ For Low Voltage to Medium Voltage
Model

FeatureVoltage
600V

0V 50V100V

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

HTE-610W
HTE-610WL

With LED lighting

Measuring
instrument
Illuminator

AC50～1000V

15
17

AC50～600V

Voltage discrimination
function of 100 V•200 V(* When option is used)

17

DC50～600V
AC80～11,400V

19

AC60～7,000V

HSS-25B1

Telescopic type

HSG-6

Telescopic type

Listedpage

15

HSE-7G19

AC 80 ～ 25,000V

20

AC80～7,000V

20

AC100～7,000V

Telescopic type～AC10.5kV※

DC50～7,000V* Applied only atwithstand voltage test

～DC21kV※
AC600～7,000V

HST-1.5N

21
21DC600～7,000V■ For Medium Voltage to Extra High Voltage
Model

FeatureHST-30W

Telescopic type

HWB-35

Non-contact type

HWB-138

Non-contact type

HWB-550

Non-contact type

HST-30L

Telescopic type

HST-70L

Telescopic type

HST-W80L

Telescopic type

Voltage
3kV

6kV

22kV

66kV

154kV

275kV

500kV

AC3kV～42kV

23

AC6kV～35kV

23

AC66kV～138kV
AC210kV～550kV

Pinwheel type
/Telescopic typeWM-33

Pinwheel type
/Telescopic typeWM-77A/B/C

Pinwheel type
/Telescopic typeWM-154A/B

Pinwheel type
/Telescopic typeWM-275

Pinwheel type
/Telescopic type23

AC20kV～80.5kVAC60kV～195.5kV

23

AC6.6kV～22kV

24

AC11kV～77kV

24

AC11kV～154kV

24
AC33kV～275kV

24

AC3kV～25kV

25

DC3kV～25kV
AC6kV～90kV

25

DC6kV～90kV
AC11kV～33kV

HWA-33X

24
24

AC6.6kV～33kV

HS-90N

23
23

AC3kV～34.5kV

AC250kV～550kV

WM-22

Listedpage

23

HS-50026■ For Railway (for trolley wire)Model

HVC-1.5N3
Railway products

20000V

DC12～750V

HST-20N

Information materials

11,400V

AC50～1000V

HSF-11

HSN-6A1

7000V

AC50～600V

HTE-700D/DL
HT-6701000V

HVC-750N3
HVC-1.5N3S

FeatureVoltage
0V

600V

Digital display Function forchecking earth wire disconnection
Digital display Function forchecking earth wire disconnection
Digital display Function forchecking earth wire disconnection

7000V

DC1500V
DC600/750V
DC1500V

HS-1.5NR

Model

HST-W80JS* Measurement range is 0 to 1999 V

53
54* Measurement range is 0 to 1999 V

55* Measurement range is 0 to 1999 V
AC6600V

HS-1.5NJ

FeatureAC6600V

Telescopic type/
Standby display function

56

DC1000～7000V
Voltage
3kV

6kV

22kV

66kV

AC20kV～80.5kV

154kV

275kV

55
56

DC600～7000V
Residual electric charge checking
function Standby display function

Listedpage* Measurement range is 0 to 999 V

DC600/750/1500V

HVC-1.5N3M

20000V

500kV

Listed
page

57

13

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Index etc.

Auxiliary device for voltage detection

28～32

Auxiliary device forvoltage detection

Voltage detector checker

33～34

Voltage detector
checker

Voltage detector

15～27

Phase tester

35～38

Grounding hook

39～45

Grounding hook
Discone hook stick

47～48

Measuring instrument

49～50

Illuminator

51

Railway products(except for voltage detector, grounding hook)

52～58

How to use the voltage detector
Product warranty, maintenanceIn order to use the voltage detector correctly
Conﬁrming dead-line work

59～68
69～70
71～74
75～76

Illuminator

Discharge stick

Discharge stick46

Measuring
instrument

Disconnector hook stick

Phase tester

Voltage detector

Railway products

INDEX

11
12
13
14

Information materials

General Catalog of
Voltage Detectors

How to read this catalog
List of products
Voltage Detectors as per working voltages
INDEX

14

検電器カタロ�_英語版_Vol3-3(P80).indd 16

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For medium &low voltage

For medium voltage

For medium &high voltage

HTE-610W

For extra highvoltage

Audio
signaling
and light
emitting

Voltage
Contact tip Sensitivity detection
through
Conductive
covering
adjustment (sheath)rubberFor communication

For railways

Low Voltage Detector, New model coming !

RoHS

2.Desighned with user safety and security in mind
・Conductive rubber provides a high level of safety
・CAT Ⅲ 1000V

22

130

Sound
emission Test buttonpart

Clip(grip)

23

Light indicator

HTE-610WL

HTE-610W
AC50V～1000V 50/60Hz
Between contact tip and clip(grip): 100MΩ minimum with a 500V megger
Ditto:2000V-1 minute
Ditto:100μA maximum
Ditto:8000V-10 cycles of positive / negative (IEC61010-1 CAT Ⅲ 1000V equivalent)
The light is switched “ON”or“OFF”by pushing the test button.
Lighting
The light is turned off automatically about 30 seconds after the light is turned on. (Automatic power off)
(HTE-610WL only)※The voltage detector operator regardless of the light turned ON or OFF.
Maximum sensitivity: AC40V maximum
Minimum sensitivity: Not operation at AC100V
Operation starting voltage
Operation at AC200V(Voltage to ground)
Ex-Factory: AC40V±10V(when the contact tip is in contact with an internal standard insulated cable (600V-IV2mm2)Light: Intermittent red light visible in 8000lx ambient
Operation status display
Sound: Intermittent sound of 50dB minimum in 30cm distance
0℃～＋40℃
Operating temperature range
22g(including batteries)
Wight
2 alkaline button cells LR44(1.5V)
Battery
New battery : In continuous operation 10 hours
Battery life
: In storage 1.5 years
Model
Working voltage range
Insulation resistanceDielectric strength
Leakage current
Impulse withstand■Features
1.Highly conveninet
・Voltage detection through covering(sheath)・Sensitivity adjustment

Phase tester

Low Voltage Detector, New model coming !

Low voltage detector
AC 50～1000V
Audio
signaling
and light
emitting

Voltage
Contact tip Sensitivity detectionLEDthrough
Conductive
covering
adjustment (sheath) lighting
rubberRoHS■Features
1.Highly conveninet
・Voltage detection through covering(sheath)・Sensitivity adjustment
2.Desighned with user safety and security in mind
・Conductive rubber provides a high level of safety
・CAT Ⅲ 1000V
3.Led light type with more functions
・Built in LED light with auto power-off function
・The LED light also serves as a battery lever checker■Dimensions: HTE-610WL

22

130

Contact
tip

LED
Lamp

Light
indicatorSoundemissionpart

Test button

Clip(grip)

24.5

Discone hook stick
Discharge stick
Measuring
instrument
Illuminator

For AC & DC

■Specifications

Contacttip

Railway products

For DCAC 50～1000V■Dimensions: HTE-610W

Information materials

For ACLow voltage detector

Grounding hook

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

Strap hole■Specifications
HTE-610WL
AC50V～1000V 50/60Hz
Between contact tip and clip(grip): 100MΩ minimum with a 500V megger
Ditto:2000V-1 minute
Ditto:100μA maximum
Ditto:8000V-10 cycles of positive / negative (IEC61010-1 CAT Ⅲ 1000V equivalent)
The light is switched “ON”or“OFF”by pushing the test button.
Lighting
The light is turned off automatically about 30 seconds after the light is turned on. (Automatic power off)
(HTE-610WL only)※The voltage detector operator regardless of the light turned ON or OFF.
Maximum sensitivity: AC40V maximum
Minimum sensitivity: Not operation at AC100V
Operation starting voltage
Operation at AC200V(Voltage to ground)
Ex-Factory: AC40V±10V(when the contact tip is in contact with an internal standard insulated cable (600V-IV2mm2)Light: Intermittent red light visible in 8000lx ambient
Operation status display
Sound: Intermittent sound of 50dB minimum in 30cm distance
0℃～＋40℃
Operating temperature range
22g(including batteries)
Wight
2 alkaline button cells LR44(1.5V)
Battery
New battery: In continuous operation
10 hours (with LED Lamp OFF)
Battery life
5 hours (with LED Lamp ON): In storage 1.5years
Model
Working voltage range
Insulation resistanceDielectric strength
Leakage current
Impulse withstand15

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For low voltage

For medium &low voltage

For medium &high voltage

For medium voltage

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

Index etc.

How to use the LV voltage detector for AC■Perform voltage detection while holding the grip firmly.

Voltage detector

The contact area with the hand affects the sensitivity of the low voltage detector. So, appropriate sensitivity
cannot be obtained unless it is held firmly.
●Bad

●Bad

Holding only with finger tips

Holding end of the grip

Voltage detector
checker

Auxiliary device forvoltage detection●Good■How to make contact with the detector

Electric line

Make contact with wide side of the tip
to ensure large contact area.

Electric line

Making contact just by the end of the contact tip.
(Capacitance decrease, and operating sensitivity becomes low.)

Perform voltage detection throughout the circumference.

Discone hook stick

Electric line

Phase tester

Contact tip

Grounding hook

Contact tip■Voltage detection for shielded cables is not possible.

Discharge stick

Contact tip

Electric line
ShieldThe voltage detector does not work because of the electrical shielding layer which is grounded.

■Sensitivity adjustment ( for HTE-610W, HTE-610WL, HT-670 ) * Adjustment is made by the volume knob after detaching the clip.
The products are adjusted to the standard sensitivity at shipment (as default). However, sensitivity adjustment can be madewhen it is required for some reasons such as: When the detection is not possible over the outer surface of the insulated cable;
When it is required to reduce the influence of induced voltage of the area etc.
When the volume knob is turned to the LV side (left turn), sensitivity increases (detect lower voltage), and when turned to the
HV side (right turn), sensitivity decreases (detect higher voltage).

■HTE-610W/610WL■HT-670

LR44×2Standard position of sensitivity(rough indication)
Sensitivity adjustment volume knob
Sensitivity adjustment is possibleby pinching it with fingers andturning to right or left.

LV

LV(High sensitivity)

HV

LR44×2

HV(Low sensitivity)(If the volume knob is rotated out of the range shownby the arrow mark, it will break.)

LV

HV

Information materials* The volume knob can be turned only about half a rotation. Overturning may cause damage.
* Pay attention to excessively high or low sensitivity. If it is excessively high, there is a risk that an correct judgment would not be possible, because the productresponds to too small voltage and static electricity etc.

Measuring
instrument

Contact tip●In the case of detection on a multicore cable(two or more conductors)

Illuminator●WrongRailway products●Correct16

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For medium &low voltage

For medium &high voltage

Low votage detector

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

The New release equipped waterproof
as a successor of HT-680 Series

AC 50～600V
DC 12～750V
Audio
signaling
and light
emitting

Waterproof
equivalent to
IPX4

AC Contact tip only formade ofRoHS
DC Conductive
resin bare wire
■ Specifications■ Features

Model・Waterproof equivalent to IPX4Working voltage range

HTE-700DAC
DC

Frequency
Operation starting voltage(Voltage to ground)■ Dimensions

22±1
Light
indicator

TestbuttonGrounding terminal

Clip(grip)
21±1

2±0.5
5±0.5

Contacttip

Light
Operation
status indication Sound
Operation temperature range
Waterproof
Battery

LED lamp

Battery life
(with new battery)
WeightHT-670HTE-700DL
50～600V
12～750V
50/60Hz
AC15V±5V DC6V±3V
Hold to grounding terminal by bare hands or connect
a grounding wire to the ground (company standard).
AC 80V or lessgrounding wire is necessary to detect DC.

function of LED light

141±2

Grounding hook
Discone hook stick
Discharge stick

For medium voltage

HTE-700D/DL

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage－◯

Continuous light emission in red : Verifiable at 8000Lx
Continuous sound : 50dB or more (10cm apart)－10℃～＋40℃
equivalent to IPX4
AAA battery (R03/LR03 1.5V) × 1pce
(Can not use rechargeable battery)
about 10hr (under continuously operating state
without LED)
about 1.5years (in unused state)
about 25g (except battery)

Switchable sensitivity (AC only)

Low voltage detector
AC 50～600V
DC 50～600V

Measuring
instrument※AC only

Audio
signaling
and light
emitting

AC
DC

Voltage
Contact tip Sensitivity detection
through
Conductive
covering
adjustment (sheath)rubberWithout lead wireWith lead wire

Sensitivity switch-over by slider switch depending on thedetection (bare conductor/insulated conductor)■ Option

Lead wire/DF01027

Optional lead wire can be used for• Voltage discrimination function (discrimination of 100 V, 200 V)• Prevents unnecessary detection due to reverse induction voltage(Lead wire should be contacted to grounded metal)Light
indicator

28
裸線

TEST

被覆

200V

100V

137

Test button

Clip(grip)

Grounding terminal(21.5)

Contact tip■ Specifications
Model
Working voltage range

Without lead wireAC
DC

Frequency■ Dimensions

検電

Information materials

Railway products

Illuminator■ Features

Coated wire AC
Operation (sheathed wire) DC
starting
ACvoltage Bare wire
DC
(Voltage toground) (At connection ACof lead wire) DC
Battery
Battery life
WeightWith lead wire
50～600V

50/60Hz
40 V with insulated wire (IV. 2 mm2) (intermittent operation)－
30 ± 15 V (continuous operation)
100 V LED light 30 V ± 20 V (continuous operation)
200 V LED light 140 V ± 30 V (continuous operation)
LR44(1.5V) × 2 pcs
About one year with normal use
26g (except lead wire)－* Without the casing

17

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For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

How to use the LV Voltage Detector for DC(For AC, refer to P.16.)■ Key points of DC voltage detection
When carrying out voltage detection with a DC circuit, the current does not flow through the capacitance, unlike the case of an AC
circuit. Therefore, DC voltage detection becomes possible when the DC current flow through the detector by contacting the detector
to an exposed charged conductor (*①), connecting the earth terminal to the ground (*②) and therefore creating a closed circuit(*③).
① Voltage detection is not possible over the insulation. (Direct touch of contact tip to an exposed live part is necessary.)② It is necessary to connect the Grounding terminal to earth with lead wire (option of HT-670) and/or with thefree hand not holding the voltage detector.

Electric line

Contact tip
Grounding terminal

Detection cir

cuit, batteryConductor such as lead wire

③ Since the detected voltage between the live part and ground is depending on the condition of connection fromgrounding terminal to earth, it is necessary to understand about the circuit formed for detection. (cf. Voltage
detection for un-earthed circuit is not possible.)* When HT-670 lead wire is used, the line-to-line voltage can be checked.
(Pay sufficient attention to the handling of lead wires. There is a risk of electric shock and/or short-circuit if misused.)[Mid-point grounding type][Ungrounded type]P

Measuring
instrument

P
Voltage to ground(Target voltage to be detected) E

N

E
V
2

E
V
2

Voltage to ground is unknown.

* Voltage detection is not possible.
[One-side line grounding type]+ side grounding type

Minus (‒) side grounding typeP

P
Voltage to ground(Target voltage to be detected)

E

E

Voltage to ground(Target voltage to be detected)
N

N
‒EV

0V

* No detection for Grounded plus (+) side.

0V

＋EV

* No detection for Grounded minus (‒) side.

Illuminator‒

Railway products

N

Information materials

E

E

Discone hook stick

Voltage detection of a DC circuit

Discharge stick

The contact tip must contact to the exposed live
part, and the grounding terminal need to beconnected to the ground. As a closed circuit isformed, a minute direct current flows.

Grounding hook

Phase tester

Current limiting
high resistanceIndex etc.

For medium &high voltage

Voltage detector

For medium voltage

Auxiliary device forvoltage detection

For medium &low voltage

Voltage detector
checker

For low voltage

18

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Measuring
instrument

Discharge stick

Discone hook stick

For medium &low voltage

For medium voltage

For medium &high voltage

HSF-11For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

Standard Model for 11.4kV

Voltage Detector for Medium/Low voltage

AC 80～11.4kV
Audio
signaling
and light
emitting■ Accessory

Waterproof■ Features• Extremely small and light weighted, so easy to handle and carry.
• Voltage detection can be done by both light and sound, so no
misconception happens.
• Testing system is equipped to Voltage Detector itself.
• By inner electric circuit, consumption is saved when not used.

■ Dimensions
260
16

(144)

100

Contact tip

Name plate

Light emission partSound Emission part

Sensitivity selector switch

φ32

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

6.5

Grip

Test button

Storage case
■ Specifications
Working voltage range
AC80～11.4kV
Operation starting voltage Low voltage Exposed live part 65 ± 15V (in contact with live part)(Voltage to ground) High voltage Exposed live part 2000 ± 200V (in contact with live part)
Electric line
For Bare wire only
Frequency
Both 50Hz and 60Hz
Insulation resistance
100MΩ or more between the contact tip and the grip
Dielectric strength
20kV for 1minutes between the contact tip and the grip
Leakage current
0.1mA or less on dielectric strength
Light emission
Verifiable at 8000 Lx of brightness[Red LED]
Operation status display
Sound emission 50 dB or more (2m apart)
Operating temperature range－10℃～＋40℃
Waterproof
Equivalent to IPX3 (No harmful water entering inside)
BatteryR03(1.5V) 2pcs
Battery life
About 6 hr. under continuously operating state (with new battery)
WeightAbout 150 g

HSE-7G For communication Recommended for Telecom workers on the pole
Voltage detector for Medium/Low voltage

AC 60～7000V
Audio
signaling
and light
emitting

Contact tip Contact tip
Waterproof
Conductive
Replaceablerubber

■ Accessory■ Option• Working voltage range from AC 60V as per Telecom standard in Japan
Successor of HSC-7G (certified product as per NTT spec.)
Contact tip for replacement (UH05004)
Storage case
■ Dimensions■ Specifications

205
100

φ21

Information materials

Railway products

Illuminator■ Features

Contact tip

Test button
Display window

Grip

Clip (detachable type)
Sound generation part

Working voltage range
AC60V～7000Ｖ
Operation starting Low voltage Exposed live part 60 V (in contact with live part)
voltageHigh voltage Exposed live part 400 V (in contact with live part)(Voltage to ground) Insulated wire (φ5mm OE wire) 3,000 V
Frequency
50/60Hz
Dielectric strength
20 kV for 1 min between contact tip and grip
Leakage current
0.5 mA or less at dielectric strength test
BatteryLR44(1.5V) × 2 pcs
Battery life
3 hr. in continuously operating state; about 2 years in unused state
Operating temperature range－10℃～＋40℃
WeightAbout 55 g

19

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For medium voltage

For medium &high voltage

HSS-25B1

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

Telescopic type, Standard model for Medium Voltage

Voltage detector

Voltage detector for Medium/Low voltage• Voltage detection from a remote place is possible by extending it* Low voltage cannot be detected on stick extension mode.
Storage case
■ Specifications■ Dimensions

Working voltage range

815±30
(627)

91

97

Insulation rod

Detecting head

Grip

Nameplate portion

For LV detection, this portion is to be held by hand75

215±10
(27)
97

Grip

34
4

Contact Tip

To be put in contact
with wires, etc. forvoltage detection

16

φ33

Test switch

For checking to seethat internal electronic
circuit is in order

Indicator light

Don’t touch any portion
other than this during
HV detection

Sounding hole

HSG-6

AC80～25000Ｖ
Bare wire : AC 80V or below
Operation starting Low voltage(Detect holding nameplate portion)
voltage
Bare wire (φ3mm) : AC 250V ± 50V(Voltage to ground)High voltage OC wire (φ5mm) : AC 1000V ± 200V
(Detect holding the grip)
Frequency
50/60Hz
Between contact tip and grip: Extended state 50 kVAC, 1 min
Dielectric strength
Between contact tip and name plate portion: 4 kVAC, 1 min
Leakage current
0.1 mA or less at dielectric strength test
BatteryLR44(1.5V) × 2 pcs
Battery life
8 hr. in continuously operating state; about 1.5 years in unused state
Operating temperature range－10℃～＋50℃
WeightAbout 140 g

Telescopic Type, Lightweight and Compact

Discharge stick

Voltage detector for Medium/Low voltage

Contact tip Contact tip Telescopic
Waterproof
Conductive
Replaceable typerubberMeasuring
instrument

AC 80～7000V
Audio
signaling
and light
emitting

Voltage detector
checker■ Features

Phase tester■Detecting at low voltage■ Accessory

Grounding hook

Waterproof

Discone hook stick

Telescopic
type

Auxiliary device forvoltage detection

AC 80～25000V
Audio
signaling
and light
emitting

Index etc.

For medium &low voltage

For low voltage■ Option

Test button
90

Light indicator

200±5

800±40

Contact tip for replacement(UH05003)■ Specifications
Working voltage range
AC80～7000Ｖ
Operation starting Low voltage Exposed live part 80 V (Operating rod is at a shortened state.)
voltageHigh voltage Exposed live part 400 V (Operating rod is at a shortened state.)(Voltage to ground) Insulated wire (φ5mm OC wire) 3,400 V
Frequency
50/60Hz
Dielectric strength
Between contact tip and grip: Shortened state 20 kVAC, 1 min
Leakage current
0.5 mA or less at dielectric strength test
BatteryLR44(1.5V) × 2 pcs
Battery life
8 hr. in continuously operating state; about 1.5 years in unused state
Operating temperature range－10℃～＋40℃
WeightAbout 85 g

Railway productsSound emission part

φ23.6

■ Dimensions

Storage case (DA04003)

Information materials• Super-compact and lightweight, 85g• The contact tip made of conductive rubber is replaceable.
• Medium voltage and low voltage can be identified with the indication(Sound/Light).
Low voltage detection is indicated by intermittent sound & light andmedium voltage is indicated by continuous sound & light.
* Low voltages cannot be detected on stick extension mode.

Illuminator■ Features

20

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For medium &low voltage

Measuring
instrument

Discharge stick

Discone hook stick

For medium voltage

For medium &high voltage

HSN-6A1

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

Recommended for Withstand Voltage Test

Voltage detector for Medium/Low voltage
AC 100 to 7000 V (at withstand voltage test of 10.5 kV)
DC 50 to 7000 V (at withstand voltage test of 21 kV)
Audio
signaling
and light
emitting

Telescopic
type■ Accessory

AC WaterproofDC■ Features• It can be used for withstand voltage tests with high-voltage equipment.
It can be used up to 10.5 kVAC, 21 kVDC, only for application ofwithstand voltage test.
• Discriminate AC and DC• Checking residual electric charge, and discharging it. (Refer to P.66.)

Test button
810 ± 40 (when extended)

φ26

DC

100

AC

52

Grip

Insulating stick

TEST

Contact tip

groundingplug
Name plateSound emission part

Light indicator for DC(orange color)Light indicator for AC(red color)grounding clip
grounding wire (3 m)

278 ± 10 (when shortened)

PUSH（Discon.G.Wire）

grounding terminal

HST-1.5N■Detecting at low voltage

Storage case

■ Specifications■ Dimensions

30

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

grounding wire
(3 m)

100 V to 600 V (Voltage detection by touching the name plate with a hand)
3 kV to 7 kV (With extended insulating stick)
100 V to 7000 V (Usable up to 10.5 kV for withstand voltage test)
50 V to 7000 V (Usable up to 21 kV for withstand voltage test)
50/60Hz
4 kVAC, 1 min, 1 mA or less
(Insulating stick: Shortened) 20 kVAC, 1min, 100 μA or less
Leakage Between contact tip and grip
(Insulating stick: Extended) 50 kVAC, 1min, 100 μA or lesscurrent
Between contact tip and grounding clip 26 kVAC, 1 min, 1 mA or less
Between core of the grounding plug
22 kVDC, 1 min
and outside the covering
BatteryLR44(1.5V) × 2 pcs
Operating temperature range－10℃～＋50℃
WeightAbout 290 g
Without
WorkingACgrounding wire
voltage
AC
With
range
grounding wire DC
Frequency (AC)
Between contact tip and name plate

Robust and Lightweight, FRP for Insulating Stick

Medium voltage detector
AC 600～7000V
DC 600～7000V
Audio
signaling
and light
emitting

AC WaterproofDC■ Accessory■ Features

Information materials

Bag for housing■ Dimensions

grounding wire
(7 m)

415±5

■ Specifications

TEST

Railway products

Illuminator• With 7-m grounding wire

135
Contact tip(Metal ﬁtting) Light indicator

Test button
Sound emission
part

Insulating
stick (FRP)

Working voltage
range

110
groundingterminal

Grip

AC
DC

Frequency
Dielectric strength
Leakage current
Battery
Battery life
Operating temperature range
Weight600V～7000V
50/60Hz
Between contact tip and grounding terminal 14000 VAC, 5 min
1 mA or less at dielectric strength test
LR44(1.5V) × 2 pcs
4 hr. under continuously operating state－10℃～＋40℃
About 340 g (main body only)

21

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For medium &low voltage

For medium &high voltage

For medium voltage

HST series

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

For Medium voltage and High voltage,
light weight and easy to use

HST-30/HST-70/HST-170/HST-250

Index etc.

For low voltage

Medium voltage & High voltage detector

Telescopic
type

Waterproof

Auxiliary device forvoltage detection

Audio
signaling
and light
emitting

3kV～ 34.5kV
20kV～ 80.5kV
60kV～195.5kV
150kV～287.5kV

Voltage detector

HST-30
HST-70
HST-170
HST-250AC

50°in all directions■ Dimensions

TEST

Because the angle at the detector is adjustable, it
can be set up so that the light emission is easy to see.
（HST-70、HST-170、HST-250）

Phase tester• FRP is used for the insulating stick. It is lightweight andoutstanding in operability.
• Tip metal fitting consists of a
Variable up to
shock-absorbing spring.

Voltage detector
checker■ Features■ Accessory

Grounding hook

Variable up to
50°in all directions

TEST(5,055)

Variable up to
50°in all directions

1,295

1,290
695

HST-70

HST-170

HST-250

HST-30
HST-170(Shortened state) (Shortened state)

Measuring
instrument

1,325

HST-30TEST

TESTDischarge stick

TEST

512

846

TEST

312

(1,382)TEST

717(2,260)(3,145)

Discone hook stick

TEST■ Operating rod can be changed to a longer one. (* Changing to a shorter one is not possible from the viewpoint of safety.)
Changed to operating rodof HST-250 (5,055 mm)

HST-30
HST-70
HST-170

HST-30G－＊

HST-30H
HST-70H－

HST-30J
HST-70J
HST-170J(for HST-V series) Universal joint compatible■ Specifications
Model
Working voltage range
AC
Operation starting voltage
Bare wire(Voltage to ground)
φ5mm-OC wire
Frequency
Dielectric strength
Leakage current
Battery
Battery life
Operating temperature range
WeightIlluminator

Changed to operating rodof HST-170 (3,145 mm)

HST-303kV～34.5kV
500V±20%
3 kV or lessContact tip ‒ Grip
70 kVAC, 1 min

About 340 g

HST-7020kV～80.5kV
3kV±20%－

HST-170
60kV～195.5kV
10kV±20%－

HST-250150kV～287.5kV
20kV±20%－50/60Hz
Insulating stick 75 kVAC/300 mm, 1 min (following positions except for the electrode and joint portions)
3 locations
6 locations
8 locations
100 μA or less at dielectric strength test/1 position
LR44(1.5V) × 2 pcs
About 4 hr. under continuously operating state－10℃～＋50℃
About 530 g
About 600 g
About 1030 g

Railway products

Changed to operating rodof HST-70 (2,260 mm)

Information materials

Model

Model after changing the operating rod
Standard product22

検電器カタロ�_英語版_Vol3-3(P80).indd 24

2023/03/30 18:23

For medium &low voltage

For medium &high voltage

For medium voltage

For ACFor DCFor AC & DC

For communication

For railways

HST-30W
Audio signaling andlight emitting type voltage detector
AC 3kV～42kV
Audio
signaling
and light
emitting

Telescopic
type

Waterproof■ Features■ Dimensions• FRP is used for the insulating stick. It is of lightweightand has outstanding operability.
• Tip metal fitting consists of a shock-absorbing spring.

■ Accessory

TEST■ Specifications
Working voltage range
Operation starting voltage(Voltage to ground)

AC3kV～42kV

Frequency
Dielectric strength
Insulation resistance
Leakage current
Operating temperature range

50/60HzOn insulating rod AC 75kV/300mm for 1minute. (2 places)
The same points as those of dielectric strength. 2,000 MΩ or more
0.1 mA or less on dielectric strength－10℃～＋50℃
Light
Verifiable at 8000 Lx of brightness(Red LED)
Sound 50dB or more (3m apart)
There should be no water seeping inside after applying
precipitation of 3 mm/min to the detection part for 10 minutes.

Waterproof
Battery
WeightLR44(1.5V) x 2 pcs
About 340 g

846(1,382)

TEST

312

Operation status display

AC 500 ± 100 V (bare wire)

HWB series
Non-contact voltage detector
AC HWB-35

HWB-138
HWB-550■ Dimensions

Waterproof

339
139

75

Audio
signaling
and light
emitting

6kV～ 35kV
66kV～138kV
210kV～550kV■ Features
Illuminator

For extra highvoltage• FRP is used for the insulating stick. It is of light-weightand has outstanding operability.
• Universal joint type92

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

Information materials

Railway products■ Specifications
Model
Working voltage range
Operation distanceSound
Indication
Light

HWB-35
AC 6～35kV
5 ~ 10cm (at AC 6kV)

Frequency
Water proof
General design
Shock resistanceOperating temperature range
Battery
WeightAccessory

50/60Hz
Equivalent to IP45
Separate device
This device has Shock resistance by Pendulum method（Pendulum method：IEC 61243-1 Shock resistance）－10℃～＋50℃
R03 (1.5V) × 2pcs.
About 400 g (Include batteries)
Bag for housing

HWB-550
HWB-138
AC 210～550kV
AC 66～138kV
5 ~ 10cm (at AC 210kV)
5 ~ 10cm (at AC 66kV)Intermittent sound 80dB or moreStand-by state : Green LED light (Automatically turns off in about 2minutes)
Operation state : Red LED flash light (Flashing red light, distinguishable in brightness of 50,000lux)

23

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For medium &low voltage

For medium voltage

For medium &high voltage

HST-L series

For extra
high voltage

For ACFor DCFor AC & DC

For communication

For railways

Long length for Feeder

Index etc.

For low voltage

HST-30L/HST-70L/HST-W80L

AC HST-30L

HST-70L
HST-W80L

Telescopic
type

3kV～34.5kV
20kV～80.5kV
20kV～80.5kV

Waterproof

Auxiliary device forvoltage detection

Audio
signaling
and light
emitting

Voltage detector

Medium voltage & High voltage detector■ Features

Contact tip

80L

Extended state■ Dimensions
8,900±200

TEST

Extended
state
Hand Guard
Insulating stick

Pad

Grip

Measuring
instrument

Stopper
Detecting Part

1350±50

Type
Working voltage range

AC

HST-30L
3kV～34.5kV

HST-70L
20kV～80.5kV

HST-W80L
20kV～80.5kV

Operation starting voltage

AC

500V±100V

3,000V±600V

5,000V±1,000V

Frequency
Dielectric strength
Leakage current
BatteryLife of the battery
Operating temperature range
Weight50/60Hzon insulating stick AC 75kv/300mm for 1minute. (insulating stick excluding contact tip and joint)
1 place
3 places
3 places
0.1mA or less during dielectric strength test (1 place)
LR44(1.5V) × 2 pcs
About 4 hr. under continuously operating state－10℃～＋50℃
About 3kg
About 3kg
About 3kg

Railway products■ Specifications

Information materials

φ55

Bag for housing（DA14006）

Illuminatorshortened
state

TEST

■ Accessory

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker• FRP is used for the insulating stick. It is lightweight andoutstanding in operability.
• Tip metal fitting consists of a shock-absorbing
spring.

24

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Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

For medium &low voltage

For medium &high voltage

For medium voltage

HS-500For extra
high voltage

For ACFor DCFor AC & DC

For communication

For railways

Voltage Detector for 500 kV Transmission Lines

Extra high voltage detector

AC 250k～550kV
Audio
signaling
and light
emitting

Telescopic
type

Waterproof■ Accessory■ Features• Voltage detector for the highest voltage T/L in Japan• Sound and light indications can be confirmed outdoors in daytime,even in high level of noise.

Bag for housing■ Dimensions

Phase tester

7085■ Specifications
Working voltage range
Operation starting voltage(Voltage to ground)
Dielectric strength
Leakage current
Battery
Operating temperature range
Weight2445

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook1050

WM series

WM-22/WM-33/WM-77A/WM-77B
WM-154A/WM-77C/WM-154B/WM-275

AC250kV～550kV
20 kVAC ± 20% (in contact with exposed live part)
Insulation pole 75 kVAC/300 mm, 5 min
100 μA or less at dielectric strength test/1 position
6R61 or 6F22(9V) × 1 pcs－10℃～＋50℃
About 4.7 kg

Voltage Detection Check
with Rotation of Pinwheel.

Pinwheel type voltage detector
AC 6.6k～500kV
Telescopic
type

Waterproof

Battery-less■ Features• Battery-less voltage detector operating with energy
to be detected.
■ Specifications

Contact tip (Metal fitting): Springmodel No.

Working Voltage Lange(kV)

Length / parts(m)quantity of parts

Length[Max](m)

Length[Min](m)rod diamater(φ)

Weight
(g)

22
33
77A
77B
77LB
77C
154A
154B
154D
154E
275
275E
275F
500LF
500G

6~ 22
6~ 33
11~ 77
11~ 77
11~ 77
11~ 77
11~15411~15411~15411~15433~27533~27533~275154~500
154~500

0.7
1.0
1.0
1.2
1.3
1.2
1.0
1.3
1.2
1.2
1.2
1.2
1.2
1.3
1.2

2
2
2
2
2
3
3
3
4
5
4
5
6
6
7

1.51
2.11
2.11
2.51
2.71
3.65
3.04
3.95
4.78
5.81
4.78
5.81
7.03
7.61
8.16

0.91
1.21
1.21
1.41
1.51
1.41
1.21
1.51
1.41
1.41
1.41
1.41
1.42
1.52
1.42

20
20
20
20
20
25
25
25
30
35
30
35
40
40
45

340
440
430
490
530
780
660
840
1140
1520
1130
1510
2030
2170
2560

25

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2023/03/30 18:23

For medium voltage

For medium &high voltage

HST-20N

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

Voltage Detector of Dual Use for AC/DC

Index etc.

For medium &low voltage

Voltage detector

Medium voltage detector
AC 3k～25kV
DC 3k～25kVACDC■ Features

Auxiliary device forvoltage detection

Waterproof■ Accessory

Bag for housing■ Dimensions

Voltage detector
checker• New model with reduced weight of HS-20N
grounding wire
(7 m)

■ Specifications

φ21

250

Insulating stick

HS-90NGrip

3kV～25kV
1000V±20%
Unusable
50/60Hz
Between contact tip and grounding terminal, AC 50kV, 1 min
0.5 mA or less at dielectric strength test
LR44(1.5V) × 2 pcs
About 4 hr. in a continuously operating state－10℃～＋40℃
About 610 g (main body only)

Discone hook stick

TEST

grounding terminal

Test button
Sound emission part
Light indicator
Contact tip (Metal ﬁtting)

AC
DC
AC
Operation
DCstarting voltage(Voltage to ground) Insulated wire
Frequency
Dielectric strength
Leakage current
Battery
Battery life
Operating temperature range
WeightWorking voltage
range

940

Wide Range type for both AC and DC

Discharge stick

Medium voltage andHigh voltage detector
AC 6k～90kV
DC 6k～90kV
WaterproofAC
DC

Measuring
instrument

Audio
signaling
and light
emitting

Phase tester

Audio
signaling
and light
emitting

Grounding hook

For low voltage■ Features■ Accessory■ Dimensions■ Specifications

1590

TEST

400
Grounding terminal

Contact tip (Metal ﬁtting)Grounding terminal cover

Working voltage
range
Operation starting voltage(Voltage to ground)

AC
DC
AC
DC

Frequency
Dielectric strength
Leakage current
Battery
Operating temperature range
Weight6～90kV
1000V±20％
3000V±20％50/60Hz
Between contact tip and grounding terminal, AC 180kV, 5 min
1 mA or less at dielectric strength test
6R61 or 6F22(9V) × 1 pcs－10℃～＋50℃
About 1,400 g (main body only)

Information materials

grounding wire
(7 m)

Bag for housing

Railway products

Illuminator• It operates over wide range from medium voltages to high voltages

26

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For medium &low voltage

For medium voltage

For medium &high voltage

HWA-33X

Audio
signaling
and light
emitting

For AC & DC

For communication

For railways

IEC61243-1■ Features
Customizable tips:
Tip fittings can be changed to hook type,straight type,Y-shaped type,etc
Multi-functional display:
It has a 3-step light and sound function to notice approching thetarget voltage in a non-contct state.
In addition,when the detector is applied to the changing point,thelamp lights up in red to indicate the detector result in aneasy-to-understand manner.

Customizable tips

Universal joint:
Universal joint type for easy connection to shared control rods.
■ Dimensions
191 mm × 79 mm × φ64 mm*Length of the Y-shaped contact tip (metal fitting): 27 mm
Muiti-functional display

Red LED (2)Red LED (1)Red LED (3)Green LED
Buzzer

Discharge stick
Measuring
instrument

For DC

Waterproof

Universal joint

Test button
Position indication mark■ Specifications
Applicable voltage
Frequency
Climate category
Waterproofness

Illuminator
Railway products

For ACAC 11kV～33kV

Universal joint

Information materials

For extra
high voltage

IEC61243-1 standard voltage detectors are
finally here !

High voltage detectorr

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

Operation status display(Audio signaling andlight emitting)Continuous operation
Self-inspection
Battery
WeightAccessory

11 kV to 33 kV AC
50/60 Hz
Category N: Temperature of -25 to +55°
C, Humidity of 20 to 96%
Equivalent to IPX4
■ Display group: III- Standby display: Green LED On (Switched off automatically in 1 minute)- Hot Line Proximity Detector display (for nominal voltage of 11 kV)Stage 1: Standard distance operation start: 60 cm ± 10 cm
Operation status display: Flashing Red LED (1) and intermittent buzzer sound(Flashing/Sound interval: Once/sec)
Stage 2: Standard distance operation start: 30 cm ± 10 cm
Operation status display: Flashing Red LEDs (1) (2) and intermittent buzzer sound(Flashing/Sound interval: Twice/sec)- Live-part indication: Operation starting voltage (in contact with Contact tip): 3.3 kV to 4.95 Kv
Operation status display: Red LEDs (1) (2) (3) On and continuous sound(- Abnormality display: Red LEDs (1) (2) (3) On, Green LED On and indefinite sound)- Sound volume: 70 dB or more
About 3 hours
Check the battery level and operation status display using the operation test.
AAA alkaline batteries (LR03 1.5 V): 2 pieces*Use of rechargeable batteries not allowed
About 350 g (excluding the contact tip)
Storage case

27

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Voltage detector

Portable live part detector

Determine whether
the Substation Facilities are charged

Index etc.

HXG-1
AC 3.3kV ～ 77kV
Auxiliary■ Accessory【Attention】

Storage case■Specifications
Working voltage range
Operating temperature range
Frequency
Battery
Dielectric strength■Voltage & distance to be separated, and detectable distance
Voltage（kV）
Detectable distance（m）

3.3
0.2

6.6
0.5

11
1.0

22
1.7

33
2.2

66
2.9

Operation distance is varied depending on the actual surrounding environment.

77
3.0

Detection performance
Light
Operation
status display Sound
Weight3.3 kV to 77 kV－10℃～＋40℃
50/60Hz
LR44(1.5V) × 2 pcs
Between contact tip and grip: Extended state 20 kVAC, 1 min
Operation Voltage-Distance:3.3kV - 0.2m
* Operation Voltage-Distance are theoretical value.
Can be conﬁrmed at the distance of 50 cm in the luminance of 8,000 lux.
50dB or more (1m apart)
85g

Please confirm operation distance in actual use environment before using.

Portable live part detector

Determine whether the Substation Facilities arechargedDischarge stick

HXC-3K

Measuring
instrument

AC 3.3kV～77kV
Audio
signaling
and light
emitting

Phase tester

Voltage detector
checkerThis device is not a voltage detector.

Grounding hookdetection

Auxiliary device forvoltage detectionfor
Waterproof device
voltage

Discone hook stick

Audio
signaling
and light
emitting

Auxiliaryfor
Waterproof device
voltagedetection• Compact size and lightweight make it convenient to carry

Working voltage range
Operating temperature range
Frequency
Battery

3.3 kV to 77 kV (Non-contact type for 11 kV or higher)－20℃～＋40℃
50/60Hz
LR44(1.5V) × 2 pcs

Dielectric strength

Between tip part and grip of detector
20 kVAC, 1 min (Leakage current: 1 mA or less)

Detection performance

Operation starting voltage: 400 V ± 20%
Detectable distance: 5 cm at 3.3 kV, 10 cm at 6.6 kV

LightOperation
status display Sound
Dimensions
WeightCan be conﬁrmed at the distance of 50 cm in the luminance of 8,000 lux.
50dB or more (1m apart)
155mm
35g
＊Without the casing■Voltage & distance to be separated, and detectable distance
Voltage (kV)
Necessary distance to be separated (cm)Detectable distance (cm)

3.3
̶
5

6.6
̶
10

11
15
33

22
25
90

33
35
120

77
76
230

Railway products■Features■Specifications

Information materials

This device is not a voltage detector.

Illuminator【Attention】

28

検電器カタロ�_英語版_Vol3-3(P80).indd 30

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Index etc.

Auxiliary voltage detection
device that gives alarm sounding
at a distance when approachto a live line.

HXA-6

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Hot lineproximity
detector

PBel
eee
Ppe
Bel
ePe
pe

Hot Line:＊＊kv
Cubicle(Door:Open)

t
or

n

Phase tester

Ra

A
B
HXW-6W

structurewith connected
groundDischarge stick

Discone hook stick

Grounding hookC

Measuring
instrument

PBele
eePp
eBel
ePee
pe

0

h

:S
ge

ePeepe
PpeBel
e
e
e
l
e
B
P

Hot line proximity detector■What is a Hot line proximity detector?
• It is a product that generates an alarm when it detects a voltage at a distance to prevent accident of electric shock.
Unintended access due to human errors such as preconception or misconception can be prevented.
• This product cannot be used as a voltage detector.

■Precautions before purchasing the Hot line proximity detector• Please use proper model according to the applications, because detection sensitivity has been adjusted for cubicle works andoverhead line works respectively assuming the general site conditions.

Illuminator• The specification “○V‒○cm” of this product is a distance under the “standard condition” set in the factory.
At actual sites, the operation distance may become shorter, depending on environment, wiring conditions, etc. (＊1)(＊1) e.g.: When a grounded structure exists nearby, etc.

• The sensitivity of this product is directional. Sensitivity is reduced at the back of the product (in the case of HXW-6W, directionof the palm).
Detection is easier in the directionof fingertips and lateral direction.

In the direction of the palm, thedetecting distance is shorter thanin the upper direction.

Information materials

Railway products●Image of operating distance29

検電器カタロ�_英語版_Vol3-3(P80).indd 31

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HXW-6WL

Index etc.

Applicable from low voltage
to high voltage

Voltage detector

WRIST ALARM

AC 400V to 22kV

Auxiliary device forvoltage detection

5.00

22kV-1.9m(12.7kV)

1.00

Voltage detector
checker

HXW-6WL
Model
400V to 22kV
Working Voltage range
25cm against 400V (230V to ground)Standard distance* Under Hasegawa's standard conditions.
for operation
Both 50Hz and 60Hz
Frequency
65dB or more (60cm apart)Sound volume
Coin type Lithium battery (CR1620) 1 piece
Battery－10℃～＋40℃
Operating temperature range(W) 77mm×(D) 40mm×(T) 14mm
Dimensions
About 35g
Weight6.6kV-1.0m(3.8kV)

11kV-1.3m(6.4kV)

0.4kV-0.25m(0.2kV)

1kV-0.4m(0.6kV)
0.10

0.1(0.06)

1

(0.6)

10

(5.8)

100

(57.8)

400(231.2)

Nominal Voltage(Voltage to Ground)(kV)

Normal Voltage
0.4kV
1kV
6.6kV
11kV
22kV

Operation Distance
0.25m
0.4m
1.0m
1.3m
1.9m

Operation Voltage-Distance Table and graph are theoretical value.
Operation distance is varied depending on the actual surrounding environment.
Please confirm operation distance in actual use environment before using.
* When used with overhead distribution lines, the operating distance will be longer.
* HXW-6WL is the customized model which is specialized in detecting low voltage.
It may begin to operate at longer distance than necessary when using in the field of Mid-High voltage.
If it may begin to operate at longer distance than necessary, consider using theoriginal model.

HXW-6W

Discone hook stick■Operation Voltage Distance Table(Theoretical value)

Phase tester■Specifications

Grounding hookdetection

Operation Distance(m)RoHS■Operation Voltage Distance graph (Theoretical value)

Auxiliaryfor
Waterproof device
voltage

Exclusively for cubicle works（Both 50Hz and 60Hz）

Discharge stick

WRIST ALARM

Auxiliarydevice forvoltagedetection

HXW-6W
1kV to 42kV
60cm against 6.6kV (3.8kV to ground)
Both 50Hz and 60Hz
65dB or more (60cm apart)
CR1620 (3V) × 1pcs
About 15 hr.
About 10 months－10℃～＋40℃

Railway products

ModelWorking Voltage range
Alarm starting distance（Under standard condition）
Frequency
Sound volume
Battery
Battery life Continuously operating state（with new battery） Unused state
Operating temperature range

Illuminator■Operation Voltage Distance graph (Theoretical value)■Specifications■Operation Voltage Distance Table(Theoretical value)
Normal Voltage
6.6kV
11kV
22kV
33kV

Operation Distance
0.6m
0.8m
1.1m
1.3m

検電器カタロ�_英語版_Vol3-3(P80).indd 32

Operation Voltage-distance table and graph are theoretical value.
Operation distance is varied depending on the actual surrounding environment.
Please confirm operation distance in actual use environment before using.

Information materials

RoHS Waterproof

Measuring
instrument

AC 1kV to 42kV

30

2023/03/30 18:24

Index etc.

Auxiliary voltage detection device
that gives alarm sounding at a distancewhen approach to a live line.

pe
ePe
Bel
Ppe
eee
PBel

HXW-6Wg

Voltage detector
checker

on

:L
ge

0

n

Ra

Phase testercGrounding hook
Discone hook stick
Discharge stick

HXA-6

e

HXA-6
HXA-6SHot line proximity detector exclusively
for overhead line works【Attention】

This is not suitable for cubicle works.

■Specifications

AC 11kVfor
Waterproof device
voltagedetection

HXA-6
HXA-6S
Model
Exclusive for work with overhead lines
Location of use
Alarm starting distance
80cm
110cm
（Under standard condition）
Either 50 Hz or 60 Hz,
Frequency
whichever is designated
65dB or more (1m apart)Sound volume
JIS CR2032(3V) × 1 pcs
Battery
About 50 hr.
Battery life Continuously operating state（with new battery） Unused state
About 2 years

RoHS

HXA-6 (Upper arm fitting type)

HXA-6S (Helmet fitting type)

Illuminator

Measuring
instrument

pe
ePe
Bel
Ppe
eee
PBel

b

Auxiliary

Railway products

ep

p Ble

Blee

a

d

Information materials

ep

p Ble

Blee

Hot Line:＊＊kv

Auxiliary device forvoltage detection

Voltage detector

Hot lineproximity
detector

Operating temperature range－10℃～＋40℃■Operation Voltage Distance Table(Theoretical value)■Operation Voltage Distance graph (Theoretical value)
(kV)

(kV)

35

35

30

Active area

30

25

25

20

20

15

15

10

Inactive area

5

10

Normal Voltage
6.6kV
11kV
22kV
33kV

Active area

Inactive area

5
0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 (m)HXA-60.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 (m)HXA-6S

Operation Distance
HX-6S
HX-6
1.1m
0.8m
1.4m
1.0m
2.0m
1.5m
2.5m
1.8m

Operation Voltage-distance table and graph aretheoretical value.
Operation distance is varied depending on theactual surrounding environment.
Please confirm operation distance in actual use
environment before using.

31

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22kV-

1.4m、

33kV1.7m■Operation Voltage Distance Table(Theoretical value)■Operation Voltage Distance graph (Theoretical value)
(kV)
110
99
88
77
66
55
44
33
22
11

Active area

Inactive area
0.6

1.0

1.4
1.8
HXA-30

2.2

2.6

(kV)
110
99
88
77
66
55
44
33
22
11

3.0 (m)

HXA-70
HXA-70S

Normal Voltage

Active area

11kV
22kV
33kV

Inactive area
0.6

1.0

1.4
1.8
HXA-30S

2.2

2.6

3.0 (m)Operation Voltage-distance table and graph aretheoretical value.
Operation distance is varied depending on theactual surrounding environment.
Please confirm operation distance in actual use
environment before using.

Hot line proximity detector exclusively
for overhead line works* Please designate the frequency (50 Hz or 60 Hz).

AC 77kV

Operation Distance
HXA-30
HXA-30S
0.7m
1.0m
0.9m
1.4m
1.2m
1.7m

【Attention】
This is not suitablefor cubicle works.

■Specifications
Model

AuxiliaryStandard operation start distance

RoHS

for
Waterproof device
voltagedetection

HXA-70 (Upper arm fitting type)

Frequency
Sound volume
Battery for use
Allowable temperature range
Water resistance
WeightExternal dimensions
Accessories

HXA-70S (Helmet fitting type)

HXA-7066 kV (Voltage to ground: 38 kV) 150 cm (under normal conditions)

HXA-70S
66 kV (Voltage to ground: 38 kV) 150 cm (under normal conditions)66kV-1.5m、77kV-1.6m、110kV-1.9m

50 Hz / 60 Hz
65 dB or more
JIS CR2032 (3V) x 1－10°
C to＋40°
C (with no surface or internal condensation)
Equivalent to IPX4
About 45 g (body only)(W) 78× (D) 82× (T) 25(W) 94 × (D) 48 × (T) 27.5
Fixing band
Fixing band, Holder (2pcs)

66kV-

2.1m、

77kV2.2m、

110kV
-2.7m

■Operation Voltage Distance Table(Theoretical value)■Operation Voltage Distance graph (Theoretical value)
(kV)
110
99
88
77
66
55
44
33
22
11

Active area

Inactive area
0.6

1.0

1.4
1.8
HXA-702.2

2.6

3.0 (m)

(kV)
110
99
88
77
66
55
44
33
22
11

Normal Voltage

Active area

66kV
77kV
110kV

Inactive area
0.6

1.0

1.4
1.8
HXA-70S

2.2

2.6

3.0 (m)Operation Distance
HXA-70
HXA-70S
1.5m
2.1m
1.6m
2.2m
1.9m
2.7m

Operation Voltage-distance table and graph aretheoretical value.
Operation distance is varied depending on theactual surrounding environment.
Please confirm operation distance in actual use
environment before using.

Index etc.
Voltage detector
Auxiliary device forvoltage detection

11kV-0.7m、22kV-0.9m、33kV-1.2m
11kV1.0m、Voltage detector
checker

HXA-30S (Helmet fitting type)

50 Hz / 60 Hz
65 dB or more
JIS CR2032 (3V) x 1－10°
C to ＋40°
C (with no surface or internal condensation)
Equivalent to IPX4
About 45 g (body only)(W) 78 × (D) 82 × (T) 25(W) 94 × (D) 48 × (T) 27.5
Fixing band
Fixing band, Holder (2pcs)

Phase tester

HXA-30 (Upper arm fitting type)

Frequency
Sound volume
Battery for use
Allowable temperature range
Water resistance
WeightExternal dimensions
Accessories

Grounding hook

RoHS

HXA-30S
11 kV (Voltage to ground: 6.4 kV) 100 cm (under normal conditions)

Discone hook stickStandard operation start distance
Auxiliarydevice forvoltagedetection

HXA-3011kV (Voltage to ground: 6.4 kV) 70 cm (under normal conditions)

Discharge stickModel

Measuring
instrument■Specifications

AC 33kV

Waterproof

This is not suitablefor cubicle works.

Illuminator* Please designate the frequency (50 Hz or 60 Hz).

【Attention】

Railway products

Hot line proximity detector exclusively
for overhead line works

Information materials

HXA-30
HXA-30S

32

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Voltage detector
checker

Handy Type with
Built-in Battery

HLA-2G

Handy Type with
Built-in Battery

Voltage detector
checker■Features■Features• Easy to use at the site
• Checking low/high voltage is possible.
• Compact size and lightweight make it convenient to carry• Ideal for checking voltage detectors for communication use■Specifications■Specifications

Output voltage

H terminal ----- 400 VAC
L terminal ----- 100 VAC

Output voltage

Output frequency
Short-circuit current
Operating temperature range

55Hz ±10Hz
0.5 mA or less
－10℃～＋50℃

Output frequency
Short-circuit current
Operating temperature range

Battery
Dimensions
WeightLR03(1.5V) × 4 pcs
Battery life ----- Total operating time: About 1 hr.
65mm×120mm×40mm
430g

HLA-N2

DC voltage detector
checker

Handy Type with
Built-in Battery

Battery
Dimensions
WeightH terminal ----- 1,200 VAC
L terminal ----- 70 VAC
55Hz ±10％0.5 mA or less
0℃～＋50℃
6R61 or 6F22(9V) × 2 pcs
Battery life ----- Total operating time: About 2 hr.
80mm×150mm×50mm
700g

HLA-3

Handy Type with
Built-in Battery

Voltage detector
checker

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

HLA-1A■Features• Exclusive use for DC high voltage detector(Optimum for HS-1.5NR & HS-1.5NJ voltage detectors)

・Recommend for CL-1-06
・Handy type with built-in battery

Railway products■Features■Specifications

Information materials

Illuminator

撮影中

Output voltage
Load resistance
Short-circuit current
Operating temperature range
Battery
Dimensions
Weight■仕様

DC1000V
50 MΩ or more
0.5 mA or less
－10℃～＋50℃
LR03(1.5V) × 4 pcs
72mm×114mm×45mm
280g

Output voltage
Output lump
Output frequency
External dimensions
Short-circuit current
WeightOperating temperature range
Built-in battery

4,000 V AC ±15%
Red LED (If the battery is low, turn oﬀ the lamp)
55 Hz ±10 Hz
100mm×200mm×70mm
0.5 mA or lower
About 1,200g (battery not included)
0℃ to ＋50ºC
9V (6LR61 or 6LF22) x 2 pcs
Life of the battery: cumulative operating hours of approx. 2 hours*6F22 batteries are not usable.

33

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34

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Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

Low voltage phase checker
Insulated wire clamping type＊As of June 2015, own company investigation

AC 80～600V（Three-Phase）■Features・Live-part display function: Differentiates charging status (voltage toground of 80 V or higher) and clip connection failure
・Non-contact type: Phase rotation and in-phase/different phase canbe checked from above insulated cables
・Electric line size: Wide range from 2 mm 2 - 100 mm 2 (Finishedexternal diameter ø2.8 mm - 22 mm)
・The magnet attached on the rear of the product makes
hands-free checking possible■Connection method for in-phase and different phase checks
Electric meter replacement work without power cut（Phase test before in-phase attachment of bypass cable）■Specifications

Measuring
instrument

3-phase 3-line system and 3-phase 4-line system
AC 80 V to 600 V (Sine wave, continuous) 45～66Hz
100 MΩ or more, using 500 V megger (Between clip and case)AC 2,000 V, one minute (Between clip and case)During dielectric strength testing, 100 μA or less
Red LED × 1 (Automatic power OFF approx. 5 minutes)
50 dB or more (50 cm apart)LR03(1.5V)×2
Continuous use approx. 15 hours
IV, DV, OW 2 mm2 to 100 mm2 (Finished external diameter ø2.8 mm to 22 mm)
About 190 g (including batteries)

Applicable circuits
Working voltage range
Dielectric resistanceDielectric strength
Leakage current
Power supply display
Sound volume
Battery
Electric line
WeightPowersupply
side

Load
side

※Using two of the R, S
and T clips

Ｓ

Ｒ

逆相

In-phase: LED FlashingＴ

Different phase: LED Lighting

正相
Power

Phase
CheckerON
OFF

Model:
HPL-200

φ3 200V/400V
50/60Hz

ＨＡＳＥＧＡＷＡMADE IN JAPAN■Dimensions■Indications
LED color
Chargeindication LED indication＊1

Illuminator

Global first ＊！
This one unit can be used for both in-phaseand different phase checks

Charged state (Voltage to ground of 80 V or higher) Power cut state, or ＊１，２
R (Yellow), S (Yellow), T (Yellow)－
Lighting

If voltage to ground is 80 V or lower

Phase rotation LED Flashing/Color
indication Buzzer sound＊2

If ground phase or open-phase

Clip

Reversed rotation
Red
Intermittent soundPositive rotation
Green－In-phase and diﬀerent LED color
phase indication(Charge indication） LED indication

Barrier

Diﬀerent phase
In-phase
R (Yellow), S (Yellow), T (Yellow)
Lighting
Flashing※Display of two clips used, light off when unused

Lead length
about 800 mm

Charge indicationfor each phase
Phase rotation
indication
Power indication

Magnet
Ｒ

Ｓ

逆相

Ｔ

正相
Power

Phase
CheckerON
OFF

Model:
HPL-200

φ3 200V/400V
50/60Hz

78±2

Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker
Phase tester
Grounding hook
Discone hook stick
Discharge stick

HPL-200

ＨＡＳＥＧＡＷＡMADE IN JAPAN

Information materials

Railway products

Power switch

25.5±2 Battery Screw
cover

72±2

■Example indicationsａ）3-phase 3-line system (200 V)

Ｒ

Ｓ

逆相

Ｔ
正相

Power

Model:
HPL-200
ON
3φ 200V/400V
50/60HzOFF

ＨＡＳＥＧＡＷＡMADE IN JAPANR and T only
are lighting
Positive/Reversed
rotaion indicationｂ）3-phase 4-line system (100 V/200 V)

Ｒ

Ｓ

逆相

Ｔ
正相

Power

Model:
HPL-200
ON
3φ 200V/400V
50/60HzOFF

ＨＡＳＥＧＡＷＡMADE IN JAPANR, S and T
are all lighting
Positive/Reversed
rotaion indicationＣ）3-phase 4-line system (400V)

Ｒ

Ｓ

逆相

Ｔ
正相

Power

Model:
HPL-200
ON
3φ 200V/400V
50/60HzOFF

ＨＡＳＥＧＡＷＡMADE IN JAPANR and T only
are lighting
No indicationof Positive/Reversed

Ｒ

Ｓ

逆相

Ｔ
正相

Power

Model:
HPL-200
ON
3φ 200V/400V
50/60HzOFF

ＨＡＳＥＧＡＷＡMADE IN JAPANR, S and T
are all lighting
Positive/Reversed
rotaion indication

35

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Index etc.

HPI-A6/S6/S20 Detector pairs insulated with optical fiber
HPI-A6

S(B)
T(C)

）

TEST

N.P.
TEST

N.P.

Receptionside(P1)

By setting the reception side (P1) asa reference, check the transmission
side (P2) corresponding to eachphase. If there are no sound andlight indications, it is “In-phase,”
and if there are indications, it is“Different phase.”

A

B

TEST

Receptionside(P1)

TEST

N.P.
N.P.

Transmissionside(P2)■Accessory
Storage caseContact tip (Metal fitting)

Bag for housing
HPI-S6/S20

HPI-A6

C

Transmissionside(P2)

Insulating stick

Hook type×2 pcs Flat plate type×2 pcs
HPI-A6
HPI-S6/S20

When detectors contact two
out of three phases, and if
there are no sound and lightindications at the reception
side (P1), this indicates “positive rotation,” and if there are,this indicates “inverse rotation.”

Joint for
optical cable

Optical cable

×2pcs
HPI-A6

Discone hook stick

R(A)

×2pcs
HPI-A6
HPI-S6/S20

HPI-A6
HPI-S6/S20■Dimensions
HPI-S6/S20

1200 (shortened state)

N.P.

TEST

φ35

φ35

129

318

Measuring
instrument

HPI-A6

Voltage detector
checker• In-phase/different phase, and phase sequence are indicated by sound and light indications.

Phase tester

HPI-S6/S20• Measurement is possible on the insulated wire sheath.
Testing operation is possible through voltage detection terminals or on the wire insulation. * Cannot be used on the shielded cable.

Grounding hook

• Multi-functional phase tester: Voltage Detection by single detector use, Phase detection / phase sequence
check with pair detector use

Auxiliary device forvoltage detection■Features

Discharge stick

AC 3kV～7kV
AC 6.6kV
AC 22kV～34.5kV

HPI-A6
HPI-S6
HPI-S20

Voltage detector

Medium voltage phase tester,
Optical fiber type698～738600～640

Attached insulating stick
565

Illuminator

318
1980 (extended state)■Option
HPI-A6
3kV～7kVFor cubicles

Optical fiber cable

Railway products

HPI-S6
HPI-S206.6kV
22kV～34.5kVFor overhead lines
50/60Hz
2000MΩor more
20 kV, 1 min
75 kV, 1 min－10℃～＋40℃
It shall be able to conﬁrm luminance of 8,000 lux.
50 dB or more at a distance of 1 m from the sound-generating part (intermittent sound generation)
Detection of in-phase or diﬀerent phase of 120°
Detection of advance or delay of 120°
Distance between transmitter and receiver, with standard optical cable: 6 m (3m×2)
Possible distance of phase test
It can be used at up to 30 m with the optional optical cable.
BatteryR1(1.5V), each 2 pcs

ModelWorking voltage range
TargetFrequency
Insulation resistanceDielectric strength
Operating temperature range
Light
Indicationof operation
Sound
Phase test function
Phase sequence function

Information materials■Specifications

10m（DF01066-1）
20m（DF01066-2）
30m（DF01066-3）＊Use extended with a joint is not possible.

36

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Index etc.
Voltage detector
Auxiliary device forvoltage detection

AC 22～42kV■Features
・FRP is used for the insulating stick. It is lightweight
and outstanding in operability.
・Working voltage is wider than HPI-S20.

■Accessory

Bag for housing

Hook type×2 pcs

Flat plate type×2 pcs■Dimensions

Joint for
optical cable

Optical cable×2pcs

1200 (shortened state)
φ35

Grounding hook
Discone hook stick

Contact tip (Metal fitting)

Discharge stick
Measuring
instrument
Illuminator
Railway products
Information materials

Detector pairs insulated with optical fiber

Medium voltage phase tester,
Optical fiber type

Phase tester

Voltage detector
checker

HPI-S20W

318

565
1980 (extended state)■Specifications
TargetWorking voltage range
Operation starting
voltage
Dielectric strength
Leakage current
Storage caseFrequency
Insulation resistancePhase test function
Phase sequencefunctionLight
Indicators
Sound
Operating temperature range
Distance for phase test
Battery
Accessories
Storage case
Insulating stick
Contact tip hardware
Optical cable
Optical cable joint

For overhead lines
22 kV - 42 kV1500 V ±20%
Between insulating sticks 30 cm apart (75 kVAC, 1 minute)2 places.
During dielectric strength test: 100 µA or lessPortable case for storage
50/60 Hz2000 MΩ or more (Use of a 1000 V megger)
Detection of in-phase or diﬀerent phase of 120 °Detection of advance or delay of 120 °Readable under brightness of 8000 lux
50 dB or more at distance of 1 m from sound source (intermittent sound) (only on receiver side)－10ºC - ＋40ºC
6 m (3 m × 2) distance between transmitter and receiver with standard optical cables
Up to 30 m with the optical cable option
Two 1.5 V dry batteries (R1) eachPortable case for storage
Telescopic type: Approx. 1,665 mm, 2 pcs
Two metal hooks for suspension (attached at shipment)
Two ﬂat blades
3 m coiled cord x 2 pcs
1 piece37

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Model HP-U: Complete type
［Attention］
There is no phase sequence (phase rotation)
checking function.
(Only indicating in-phase, different phase)
Please designate frequency of 50 Hz or 60 Hz.

Model HP-S: Straight type

■Accessory
Model HP-T: Bag for housing
Model HP-S: Bag for housing
Model HP-U: Trunk case■Specifications

Wireless Voltage Detector/Phase Testerwith Phase Sequence

Measuring
instrument

AC 20kV～42kV■Features■Accessory• With Phase sequence (phase rotation) checking function.
(Universal joint type)［Attention］
Please designate the frequency of 50Hz or 60Hz.
■Specifications
Working voltage range
Frequency
Phase test function
Distance for phase test
Insulation resistanceThreshold voltage
Operating temperature range
Light
Indication
Sound
Structure of detection part
Batteries used

20kV～42kV
50 Hz or 60 Hz
Whether it is in phase or has a 120º diﬀerence is determined.
120º advance or delay is determined.
Min. distance between transmission side and reception side: 5 m
100 MΩ or larger between the contact tip (metal ﬁtting) and joint
AC 1,500V ± 20% (to ground)－10℃～＋40℃
Visible in environment with brightness of 8000 lx
50 dB or higher at a distance of 2 m
Prevents water from seeping into internal parts.
A 9-V dry cell 6F22 (S-006P) in each

* The radio wave intensity conforms to the Japanese Radio Law.

Index etc.
Discharge stick

HP-22VR

Bag for housing

Illuminator

Contact tip ‒ Grip

Interval of 30 cm, 75 kV, 5 min
20 kV, 5 min
50 kV, 5 min
14 kV, 5 min

Railway products

Detector: Contact tip ‒ Joint part

HP-S3, HP-U3, HP-S6, HP-U6, HP-S20, HP-U20
HP-U3, HP-U6
HP-U20
HP-T3, HP-T6

Information materials

Insulating stick (except for the antenna portion): Insulating stick ‒ Surface
Dielectricstrength

Discone hook stick

HP-T3
HP-S3
HP-U3
HP-T6
HP-S6
HP-U6
HP-S20
HP-U20
Model
3.3kV
6.6kV
Common use for 22 kV, 33 kVWorking voltage range
Frequency
50 Hz or 60 Hz (Either one is to be designated.)Phase test function
Discrimination of in-phase or diﬀerent phase of 120°* Attention: There is no phase sequence (phase rotation) function.
Possible distance of phase test
Distance between transmission side and reception side: Within 5 m
1220mm
1480mm
550mm
1220mm
1480mm
1220mm
3470mm
550mm
When extended
Total length（without telescopic structure）
850mm
1090mm
850mm
1090mm
850mm
1640mmWhen shortened（without telescopic structure）
It shall be able to conﬁrm in the luminance of 8,000 lux.
Light
Indication ofoperation
50 dB or more at a distance of 3 m
SoundBattery
6R61 or 6F22(9V), each 1 pcs
Operating temperature range－10℃～＋50℃
Structure
Waterproof
700g×2900g×21250g×2
700g×2900g×21250g×2
900g×2
2200g×2
WeightAuxiliary device forvoltage detection

AC 3.3kV～33kV

Voltage detector
checker

Medium voltage phase tester
Wireless type

Voltage detector

Awarded 40th
Shibusawa Prize

Phase tester

Easy-to-use with Wireless pairGrounding hook

HPseries

38

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1. Type of tip metal fitting
2. Type of insulating stick (supplementary connecting
type, telescopic type)
3. Length and diameter of insulating stick
4. Cross-sectional area and length of earth wire
5. Type of grounding metal fitting
6. Working voltage［Attention］• Three-phase/one set (three-unit set) is the standard (except
for railways).
• The bag for housing is sold separately (except for partial
products).
• The products are manufactured to order, so there may becases when they are non-returnable.

■How to connect operating rod (As a standard, a rod of 3 m or less consists of a single rod.)

Figures inside ( ) indicate outside diameter of the rod.

Earth wire of 38 mm2 or less is used.
In the case of using earth wire of 60 mm2 or moreIn the case of using a strong type tip metal ﬁtting

Length of operating rod

1.5m（31φ）＋2.0m（34φ）
1.5m（31φ）＋2.0m（34φ）
2.0m（31φ）＋2.0m（34φ）
2.0m（31φ）＋2.0m（34φ）
2.5m（31φ）＋2.0m（34φ）
2.5m（31φ）＋2.0m（34φ）
2.5m（31φ）＋2.5m（34φ）
2.5m（31φ）＋2.5m（34φ）
3.0m（34φ）＋3.0m（39φ）
3.0m（34φ）＋3.0m（39φ）
2m（34φ）＋2m（39φ）＋2m（39φ）
2m（34φ）＋2m（39φ）＋2m（39φ）
uses an insulating joint, and others use a metallic joint.

3.5m（connection of 2 rods）
4.0m（connection of 2 rods）
4.5m（connection of 2 rods）
5.0m（connection of 2 rods）
6.0m（connection of 2 rods）
6.0m（connection of 3 rods）
Kind of joint

1.5m（31φ）＋2.0m（34φ）
2.0m（31φ）＋2.0m（34φ）
2.5m（34φ）＋2.0m（39φ）
2.5m（34φ）＋2.5m（39φ）
3.0m（34φ）＋3.0m（39φ）
2m（34φ）＋2m（39φ）＋2m（39φ）■Type of grounding wire (transparent vinyl covered electric wire)
Cross-sectional area
Wire conﬁguration
WeightFinished outside diameter

8mm2
7/22/0.26
105g/m6.6mm

14mm2
7/38/0.26
180g/m8.4mm

22mm2
7/7/40/0.12
265g/m
10.1mm38mm2
19/38/0.26
455g/m
12.9mm60mm2
19/60/0.26
680g/m
15.2mm100mm237/51/0.26
1120g/m
19.0mm■Grounding metal fitting
Grounding metal fitting (SA107-B,C,D)

Valve type grounding handle (SA110)
80

B

C

120°

E

F

G

70

12

0°

A

42

M12 screw

D screw

Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker
Phase tester
Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Information materials

A wide variety of lineup according
to the application■When ordering, please determine the followings.

Railway products

Illuminator

Groundinghook＊The photo shows SA107-C.
Model
SA107-B
SA107-C
SA107-D
SA110

Mounting method
Applicable wire
Screw tightening method
8mm2～ 14mm2Screw tightening method 22mm2～ 38mm2
Screw tightening method 60mm2～100mm2
Stud bolt typeM12 stud

A
51
66
90

B
18
24
30

C
D
E
18
10
39
27
12
53
38
12
75
Valve type grounding handle

F
13
14
23

G
65
95
95

Weight
280g
570g
1080g
320g

39

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MA121-AS
Special large size

Strong large size

MA121-C

710g

For round bus bar

φ30 to 80

800g

For round bus bar

1200g

For round bus bar（Earth wire: 60 mm2 or more）

φ20 to 52,
φ40 to 80,
φ70 to 150,
φ100 to 180,

L＝195
L＝195
L＝225
L＝225

〜

MA121-AG

φ8 to 40

1920g

Voltage detector
checker

Large size

Remarks

Dimensions

930g

For round bus bar

φ8 to 40
Thickness of bus bar within 12
Width within 75

930g

For dual use of round and ﬂat bus bars

φ20 to 52
Thickness of bus bar within 20
Width within 100

1600g

For dual use of round and ﬂat bus bars
（Earth wire: 60 mm2 or more）

φ8 to 40
Thickness of bus bar within 12
Width within 75

1060g

For dual use of round and ﬂat bus bars

φ5 to 25

370g

For round bus bar

MA114-A
Horizontal & slanted
copper band type

Thickness within 25
Width within 100

1000g

For ﬂat bus bar

MA114-AG
Strong horizontal &slanted copper band type

Thickness within 30
Width within 100

2250g

For ﬂat bus bar（Earth wire: 60 mm2 or more）

φ5 to 25
Thickness of bus bar within 30
Width no limit

500g

For dual use of round and ﬂat bus bars

φ8 to 25
Thickness of bus bar within 35
Width no limit

1050g

For dual use of round and ﬂat bus bars
（Earth wire: 60 mm2 or more）

φ5 to 25
Thickness of bus bar within 30
Width within 50

480g

For dual use of round and ﬂat bus bars

φ5 to 25
Thickness of bus bar within 30
Width within 50

530g

For dual use of round and ﬂat bus bars

MA111-AG
Strong universal type

MA111-C
Slanted universal typeMA122-A
Medium size

MA115-A
Cubicle type

MA115-AG
Strong cubicle type

MA115-AN
Cubicle type for narrow
spaces

MA115-AH
Cubicle type with claw

Discharge stick

Universal typeMeasuring
instrument

MA111-A

Phase tester

φ8 to 40

Slanted large size

Grounding hook

MA121-A

WeightRange of use (mm)Discone hook stick

Model name

Illuminator

External appearance

Auxiliary device forvoltage detection■Fixed type tip metal fitting (The operating rod and tip metal fitting are fixed.)

Index etc.

●Three-phase/one set is a standard. (Usedwith AC)●The bag for housing is sold separately.
●The products are manufactured to order,
so there may be cases when they are
non-returnable. Please note this whenplacing an order.

Voltage detector

Attention

１.Type of tip metal ﬁtting
２.Type of insulating stick (supplementary connecting type, telescopic type)
３.Length and diameter of insulating stick
４.Cross-sectional area and length of earth wire
５.Type of grounding metal ﬁtting
６.Working voltage

Railway products

Table 1

●When ordering the earth hook, please determine the following.

Information materials

Grounding hookcomponent

40

検電器カタロ�_英語版_Vol3-3(P80).indd 422023/03/30 18:25

Index etc.
Voltage detector
Auxiliary device forvoltage detection

Table 2External appearance

Model nameMA121-B
Large size

MA121-BS
Special large size

MA121-BG
Strong large size

Phase tester
Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument

Large slanted type

MA111-B
Universal type

MA111-BG
Strong universal type

MA111-D
Universal slanted typeMA122-B
Medium size

MA114-B
Horizontal & slanted
copper band type

MA115-B
Cubicle type

Illuminator

Attention

１.Type of tip metal ﬁtting
２.Type of insulating stick (supplementary connecting type, telescopic type)
３.Length and diameter of insulating stick
４.Cross-sectional area and length of earth wire
５.Type of grounding metal ﬁtting
６.Working voltage●Three-phase/one set is a standard. (Usedwith AC)●The bag for housing is sold separately.
●The products are manufactured to order,
so there may be cases when they are
non-returnable. Please note this whenplacing an order.

■Detachable type tip metal fitting (The operating rod and tip metal fitting are detachable.)

MA121-D

MA105
Tip metal ﬁtting for
operating rod

MA105-S
Tip metal ﬁtting for
operating rod

Range of use (mm)WeightRemarks

φ8 to 40760g

For round bus bar
Closed stocks (set items) of the type ZB,
type YB have a groove width of 5.5 mm.

φ30 to 80

860g

For round bus bar

φ20 to 52,
φ40 to 80,
φ70 to 150,
φ100 to 180,

L＝200
L＝200
L＝200
L＝230

Dimensions

1250g
1950g

For round bus bar（Earth wire: 60 mm2 or more）

φ8 to 40930g

For round bus bar

φ8 to 40
Thickness of bus bar within 12
Width within 75

980g

For dual use of round and ﬂat bus bars

φ20 to 52
Thickness of bus bar within 20
Width within 100

1680g

For dual use of round and ﬂat bus bars
（Earth wire: 60 mm2 or more）

φ8 to 40
Thickness of bus bar within 12
Width within 75

930g

For dual use of round and ﬂat bus bars

φ5 to 25420g

For round bus bar

Thickness within 25
Width within 100

1010g

For ﬂat bus bar

φ5 to 25
Thickness of bus bar within 30
Width no limit

520g

For dual use of round and ﬂat bus bars

170g

To be used for all detachable modelsof the types MA115-B, ZB, and YB,
except for closed stocks

70g

To be used for closed stocks of thetypes MA115-B, ZB, and YB

Information materials

Railway products●When ordering the earth hook, please determine the following.

〜

Voltage detector
checker

Grounding hookcomponent

41

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●Three-phase/one set is a standard. (Usedwith AC)●The bag for housing is sold separately.
●The products are manufactured to order,
so there may be cases when they are
non-returnable. Please note this whenplacing an order.

（The bag for housing is sold separately.）

Universal ﬁxed type
MA111-A（MA111-C）

Medium-sized ﬁxed typeMA122-A
Fixed type for cubicle
MA115-A

Type 5
Type 10
Type 15Type 20Type 25
Type 30
Type 35
Type 40
Type 45
Type 50
Type 60
Type 60
Type 5
Type 10
Type 15Type 20

Breakdown of class
Length, kind of operating rod
Neo pipe
Single rod
0.5m
1.0m
〃
〃
1.5m
〃
〃
2.0m
〃
〃
2.5m
〃
〃
〃
3.0m
〃
Connecting type3.5m（1.5＋2）〃
4.0m（2＋2）〃〃
4.5m（2.5＋2）〃〃
5.0m（2.5＋2.5）〃〃
6.0m（3＋3）〃〃
6.0m（2×3）
〃
〃
0.5m
1.0m
1.5m
2.0m

〃
〃
〃
〃

Single rod〃〃〃

Grounding wire

Groundingmetal ﬁtting

Applicable voltage

2

22mm ×3m〃
22mm2×4m

SA107C
〃
〃

6.6kV
〃
22kV

〃
22mm2×5m〃
22mm2×6m

〃
〃
〃

〃
〃
〃
〃
〃
〃
〃
〃
〃

〃
77kV
〃
〃
154kV
〃
〃
275kV
〃

14mm2×3m〃
14mm2×4m〃

SA107B
〃
〃
〃

6.6kV
〃
22kV
〃

〃
22mm2×7m

Phase tester

Large ﬁxed type
MA121-A（MA121-C）

Class

Grounding hook

Model of tip metal ﬁtting B

Discharge stick（Regarding the Type 60 described above, please determine either connection with two rods or three rods.）

Detachable type

Illuminator（Closed stock）＝（Detachable tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting) × 3 + (Detachable operating rod）×1 （The bag for housing is sold separately.）
A
B＊The f detachable type is not suitable for operation at 4 m or more.

Detachable operating rod

A

Model of tip metal ﬁtting B
Large detachable type
MA121-B（MA121-D）
Universal detachable type
MA111-B（MA111-D）

Class
Type 5
Type 10
Type 15Type 20Type 25
Type 30
Type 35
Type 40

Grounding wire

Grounding metal ﬁtting

Breakdown of class
Length, kind of operating rod
0.5m
Neo pipe
Single rod
1.0m
〃
〃
1.5m
〃
〃
2.0m
〃
〃
2.5m
〃
〃
3.0m
〃
〃
Connecting type3.5m（1.5＋2）〃〃

4.0m（2＋2）〃

Grounding wire

Groundingmetal ﬁtting

Applicable voltage

22mm2×3m

SA107C

6.6kV〃
22mm2×4m〃
22mm2×5m

〃
〃
〃
〃

〃
22kV
〃
77kV

〃
22mm2×6m

〃
〃
〃

〃
〃
154kV

〃

Information materials

Tip metal ﬁtting

Measuring
instrument

A

Grounding metal ﬁtting

Voltage detector
checker

Grounding wire

Auxiliary device forvoltage detection

Tip metal ﬁtting

Discone hook stick（Closed stock）＝（Operating rod with tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting）×3
A
B

Index etc.

Attention

１.Type of tip metal ﬁtting
２.Type of insulating stick (supplementary connecting type, telescopic type)
３.Length and diameter of insulating stick
４.Cross-sectional area and length of earth wire
５.Type of grounding metal ﬁtting
６.Working voltage

Voltage detector●When ordering the earth hook, please determine the following.

Railway products

Fixed type42

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Z1

Z2

φ39

φ25

φ32

1300

L

φ32

L

1300

1400

1300(700)

1300(800)

2600(1500)

4000■Grounding metal fitting SA107-C Insulating stick: Epoxy pipe

Auxiliary device forvoltage detection
Voltage detector
checker（Z3）

φ25Type Z（Closed stock）＝（Operating rod with tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting) × 3 +(Bag for housing) × 1 or × 3

Voltage detector

Index etc.

Operating rod of compressed tightening-typetelescopic model for power transmission line

Operating rod of compressed tightening-typetelescopic model for power transmission line

Type ZBType

Applicable
voltage

Z1
Z2
Z3

275kV
154kV
77kV

Tip metal
ﬁttingGrounding wire

Length at
extended state

MA121-A 22mm ×5m
22mm2×4m〃〃
22mm2×3m

1.8m
1.5m
1.1m

Phase tester

Bag forhousing

Weight ofcontents & bag

3
2
2

Capacity of
1 phase portion
Capacity of
3-phase portion

15.5kg11.0kg8.8kg

2615(1515)
1300(800)

φ15～φ40

Max27

φ32

φ8～φ15

φ25

132

Grounding hook

〃

2
3）
ZB（ZB

Tightening range

700(500)■Grounding metal fitting SA107-C Insulating stick: Epoxy pipe

Type Y

Applicable
voltage

154kV
77kV

Tip metal
ﬁttingGrounding wire

MA121-B (Groove: 5.5 mm) 22mm2×4m
22mm2×3m〃

Length at
extended state

At storage

No. ofconnections

2.6m
1.5m

1.4m
0.9m

2
2

Bag forhousing

Weight ofcontents & bag

9.3kg
7.8kg

Capacity of 3-phase portion for 1800 × 120□
Capacity of 3-phase portion for 1200 × 120□

（Closed stock）＝(Operating rod with tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting) × 3 +(Bag for housing) × 1
Y（Y
2
3）

2550(1550)
1245(745)

1305(805)
195

Safety indication

φ8～φ15Push-button switch

φ34

Operating rod of button type telescopic model

Type

ZB2
ZB3

φ25

Discone hook stick

No. ofconnections（Closed stock）＝(Detachable tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting) × 3 +(Operating rod) × 1 + (Bag for housing) × 1

195

Discharge stick

At storage

4.0m
2.6m
1.5m

2

700(500)

φ15～φ40
Tightening range■Grounding metal fitting SA107-C Insulating stick: Neo pipe
Type
Y2
Y3

154kV
77kV

Tip metal
ﬁttingGrounding wire

Length at
extended state

MA121-A 22mm ×4m
22mm2×3m
〃

2.5m
1.5m

2

At storage

1.4m
0.9m

No. ofconnections

Bag forhousing

Weight ofcontents & bag

2
2

Capacity of
3-phase portion

11.5kg
9.0kg〃（Closed stock）＝(Detachable tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting) × 3 +(Operating rod) × 1 + (Bag for housing) × 1

YB（YB
2
3）
2465(1465)

195
95

1245(745)2017
φ8～φ15
φ15～φ40

Max27

Push-button switch

φ34

Type YB

Applicable
voltage

φ25

Operating rod of button type telescopic model

Information materials

Railway products

Illuminator

Measuring
instrument

Max27

700(500)

Tightening range■Grounding metal fitting SA107-C Insulating stick: Neo pipe
Type
YB2
YB3

Applicable
voltage

154kV
77kV

Tip metal
ﬁttingGrounding wire

MA121-B 22mm ×4m
22mm2×3m〃
2

Length at
extended state

2.4m
1.4m

At storage

1.4m
0.9m

No. ofconnections

Bag forhousing

Weight ofcontents & bag

2
2

Capacity of
3-phase portion

9.6kg
8.1kg

〃

43

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Voltage detector■Accessory

With Bag for housing

Auxiliary device forvoltage detection■Features・The clip is L-shaped
・It’s easily install and hard to detach.
・Soft and clear coated grounding wire.
Bag for housing■Dimensions
15

40
80

φ5～20

■Specifications
Tip metal ﬁtting

Length ofinsulating stick

Grounding wire

Groundingmetal ﬁtting

H

Insulation
rubber clipWithrubber grip

22mm2×1.2m×3 wires
8mm2×5 m×1 wire

Clip

Type HA

Hammer-in typeBag for housing Weightgrounding bar
None

Portable type
300×360×110

3.5kg

Grounding hookType

Improved model from type H.

Discone hook stick

Universal type for cubicle
With Bag for housing

When you pull the rope, clip is opened.

Discharge stick

Check the QR codefor details.

Measuring
instrument

When you push the rope, clip is closed.

■Dimensions
Line-side clip

Voltage detector
checker

Universal type for cubicle

Index etc.

Standard model for Cubicle andhigh voltage receiving equipment.

Phase tester

Type H

Grounding-side clip

Length of 8mm2 cable : 5,000±100■Specifications
Type

Tip metal ﬁtting

Length ofinsulating stick

Grounding wire

Groundingmetal ﬁtting

Hammer-in typegrounding bar

Bag for housing

Weight

HA

Insulation
rubber clip

572mm

22mm2×1.2m×3 wires
8mm2×5 m×1 wire

Clip

None

Portable type
400×600×100

4.5kg

Information materials

Bag for housing
Length of 22mm2 cable : 1,200±50

Railway products

Illuminator■Accessory

44

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Index etc.
Voltage detector

Universal type for
cubicleUniversal type for
cubicleFor 6.6 kV (narrow space type)with carrying caseFor 6.6 to 22 kV
with carrying case

■Dimensions■Accessory■Dimensions■Accessory

130

35

50

70

35

140
50

130

φ10

φ25

150

65

Hammer-in typegrounding bar

135

Max18

700

600

300

φ25

135

Voltage detector
checker

360

Auxiliary device forvoltage detection

Type F
600

Type CBag for housing

Phase tester

120

Grounding hook

Bag for housing

Type S

Discone hook stick

For round bus bar

600

For 6.6 to 22 kV
with carrying case
■Dimensions■Accessory

φ5～30

70

140

128

Discharge stick

120

650

600
φ25

65

Hammer-in typegrounding bar
Max18

135

Measuring
instrument

360

φ10

120

Bag for housing

Illuminator
Railway products
Information materials

120■Specifications
Type

Tip metal ﬁtting

Length ofinsulating stick

Grounding wire

Groundingmetal ﬁtting

Hammer-in typegrounding bar

Bag for housing

WeightC

MA115－AN

Neo pipe（φ25×35mm）
with rubber grip

14mm2×0.7m×2 wires（with red triangular ﬂag）
8mm2×7m×1 wire

Clip

None

Portable type
300×360×110

3.4kg

F

MA115－AH

Neo pipe
22mm2×1.5m×2 wires（φ25 ×335mm） （with red triangular ﬂag）
with rubber grip
8mm2×15m×1 wire

SA107-B

φ10 steel bar

Portable type
700×120□

5.6kg

S

MA122－A

Neo pipe
22mm2×1.5m×2 wires（φ25×337mm） （with red triangular ﬂag）
with rubber grip
8mm2×15m×1 wire

SA107-B

φ10 steel bar

Portable type
650×120□

5.0kg

Type H is made by Hasegawa Electric Co., Ltd., and all other types are made by Sunasaki Seisakusho.

45

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Index etc.

Enhance Work Safety and Efficiency

Voltage detector

Discone hook stick with
voltage detector
AC 6.6kV

Auxiliary device forvoltage detection■Features• Work safety and efficiency are improved by combining the voltage-detecting function to the medium voltage cutout operating rod.
■Specifications
Operating temperature range
Structure
Tensile performance
Battery
Dimensions
Weight－10℃～＋40℃
Waterproof (Water shall not ingress.)
200kg, 1 min
6R61 or 6F22(9V) × 1 pcs
About 470mm
About 390g
＊Without the casing

Phase tester

HSH-K6Model
Working voltage range AC 6.6kV
Operation starting voltage 1300V±20％（continuous indications of sound & light）(Voltage to ground) （with insulated wire）
Insulation resistance Between contact tip (metal ﬁtting) and grip: 100 MΩ or more
Dielectric strength Ditto:
1 min
Leakage current
1 mA or less at dielectric strength test
Light emission: It shall be able to conﬁrm luminance of 8,000 lux.
Indication of Light
operation
Sound Sound: 50 dB or more at a distance of 2 m

Voltage detector
checker

HSH-K6〈Type A〉

L

Grounding hook

SA109□-□ℓo

Hook Stick for D/S(Disconnecting Switch)〈Type B〉

AC 10kV～110kV

L■Features

Discone hook stick

ℓo

Chain

〈Type C〉

Lℓo

Water drip shed

Discharge stick• There are lineups with or without the water
drip shed (for outdoor use) as well as chain.

Chain

D□
Hook stick for D/S in Cubicle

AC 6.6kV～30kV

A-3
B-3
C-3
40kV
3.0m
3.0m
̶
̶
0.7m

A2-4
B2-4
C2-4

A2-5
B2-5
C2-5

A2-6
B2-6
C2-6

A3-6
B3-6
C3-6

70kV
110kV
connection
connection
connection
4.0m（ connection（ of 2 rods ）6.0m（ of 2 rods ）6.0m（ of 3 rods ）of 2 rods ）5.0m
2.0m
2.5m
̶
̶
2.0m
2.5m
3.0m
2.0m
̶
̶
3.0m
2.0m＋2.0m
0.7m
1.0m
1.0m
1.0m
SA108-C
SA108-E

Type A
Type B
Type C

Indoor〃Outdoors

Chain
None
Exist
Exist

D1
0.5m
0.3m
6.6kV

D2
1.0m
0.3m
10kV

D3
1.5m
0.5m
20kV

Water drip shed
None
None
Exist

Illuminator

A-1.5
A-2
B-1.5
B-2
C-1.5
C-2
20kV
30kV
1.5m
2.0m
1.5m
2.0m
̶
̶
̶
̶
0.5m
0.5m
SA108-B

Railway products

Outdoors
Applicable voltage
Length of hook rod(L)φ31
Rod dia. &φ34connecting method
φ39Length of grip(ℓo)
Tip metal ﬁtting for discone hook rod

A-1
B-1
C-1
10kV
1.0m
1.0m
̶
̶
0.3m

L
ℓo

■SpecificationsClass
L en gth (L )Length of grip (ℓo)
Applicable voltage

D4
2.0m
0.5m
30kV

Information materials

Indoor

φ25

Model（SA109）Measuring
instrument■Specifications

46

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker

HRD-27S

Residual electriccharge discharging stick

Uses sound and light to visualize the complete
discharge of accumulated charge

・Voltage detection functions
・Built-in resistance

DC 27kV (Maximum discharge voltage)
Emits
sound
and light■Features・Allows for residual electric charge to be discharged safely and easily
・When discharging, allows for visual and auditory confirmation of discharge status throughan audio and light emitting display at the center of the detector
・The metal fitting can be switched according to application (2 types)
This device is not a voltage detector. Use a voltage detector on
the circuit to confirm that the power is not running before using
this device.
■Accessory

Grounding hook

Phase tester■Detector

Hook metal fitting

Bag for housing (DA16003)■Dimensions
740
58

Measuring
instrument

地端子・接地線は接触しないよう

警告

荷放電
使用禁

中は､握り
絶対に
の恐れあり

JAPAN

HRD-27S
DC27kV
1.0uF
2016.12
造

式
型

放電電圧

製

φ4

放電容量

TEST

Detector
電圧検出機能付き放電棒

Discharge stick

Discone hook stick

Straight metal fitting

Grounding terminal

Contact tip (metal ﬁtting)Light indicator
Sound emission part

Test button

150

(100)

Crocodile-mouth clip

Information materials

Railway products

Battery cover

接地端子・接

接触しない

!

!

感電

放電

本器は検電器ではありません。

残留電（活線！

Illuminator

φ21

Grounding wire (3m)Insulating stick

Hand guard

Grip■Specifications
Discharge voltage
Discharge capacity
Discharge time
Discharge resistanceOperation stop voltage
Indication (Light/sound)Battery
Battery life
Operating temperature range
WeightAccessories

DC27kV (Max)1μF (Max)
5 seconds or less (DC27 kV, 50 V or less at 1 µF)
600kΩ
DC40V ±20%Light: It shall be able to conﬁrm in the luminance of 8,000 lux Sound: 50 dB or more at a distance of 2 m
LR44 alkaline button cell (1.5 V) x2 pcs.
Approx. 4 hours of continuous operation-10℃ ~ +40℃
About 800 g
Bag for housing , contact tip (hook metal ﬁtting), each 1 pc.

47

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Residual electriccharge discharging stick

Built-in resistance typeIndex etc.

HRD-27

Voltage detector

・Built-in resistance
DC 27kV(Maximum discharge voltage)

Auxiliary device forvoltage detection■Features

Voltage detector
checker

・Allows for residual electric charge to be discharged safely and easily
・The metal fitting can be switched according to application (2 types)■Dimensions
640±10

Grip

Hook metal fitting

Discone hook stick

Straight metal fitting■Specifications
Discharge voltage
Discharge capacity
Discharge time
Discharge resistanceOperating temperature range
WeightAccessory

DC27kV (Max)1μF (Max)
5 seconds or less (DC27 kV, 50 V or less at 1 µF)
600kΩ
-10℃ ~ +40℃
About 660 g
Bag for housing , contact tip (hook metal ﬁtting) , each 1 pc.

Order-madeSimple Discharge stickwith no built-in Internal Resistance・No built-in resistance*Select from the following specifications①

residual electriccharge discharging stick

Bag for housing (DA16003)

AC 6.6kV

Discharge stick

Hand guard

Measuring
instrument

!

感電

接触しない

接地端子・接!

残留電（活線

φ21±0.5

Insulating stick

Phase tester

Crocodile-mouth clip

Grounding wire (3 m)

製
ＨＡＳ

放

150±5

Grounding hook

Grounding terminal型
放電電■Accessory
(100)

③

②

Illuminator

警告

接触しないよう

中は､握り
絶対に
の恐れあり

地端子・接地線は

DB

放 電 棒

型 式 HRD-2
電電圧MAX.DC
電容量MAX.1u
製 造
ＡＳＥＧＡＷ

Contac tip(metal ﬁtting)

荷放電
使用禁

(66)
φ4

(1)Length of insulation stick
□0.5m

□1.0m

□1.5m

□2.0m

□8mm 2 □14mm 2(3)Length of grounding wire
□2m

□3m

□4m

□5m

□7m

□8m

□9m

□10m

(4)Grounding metal fitting type

*For the Dimensions, refer to P32.

□Crocodile-mouth clip
□Vise type (SA107-B)□6m④(2)Cross-sectional area of grounding wire

Information materials

selected speciﬁcations ((1) to (4))

Railway products

・This product is custom built according to the following

48

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker

Extra-High Voltage
Detecting System

This indication and warning apparatus detects the presence or absence of a charged
state of special high voltage substations, electric power transmission lines,
power receiving equipment, etc. in a non-contact operation.

AC 3.3kV～550kV
Image figure* This apparatus is produced and sold byour company, having inherited inheriting
technologies of former Million Electric
Mfg. Co. Ltd.
■Features• Economical as it can be simply installed without using PT, PD.
• Easy installation and maintenance.
Protector
・HG7-P1B(for single phase)
・HG7-P2B(for two-phase)

Grounding hook

Phase tester

VOLTECT

Detector

Earth wire

＊Refer to the following
Rating table.

Illuminator
Railway products

Detector (DD type)

Voltage Meter
・DVF-11M

3.5 mm2 shielded wire
(sold separately)

Detector (CT type)

Attached
cable

DK13013
MADE IN JAPAN

Detector・(DD type) HG7-DD-○m・(CT type) HG7-CTA-○m

No.

Voltage Meter
3.5 mm2 shielded wire
(sold separately)

Information materials

Protective
deviceController
・HG7-SM◯◯・HG7-DM◯◯

Measuring
instrument

Discharge stick

Discone hook stick

3.5 mm2 shielded wire (sold separately)

Standard 10 m
20, 30, 40, 50, or 60 m to be designated■Rating table■How to decide the specification

Indicating type of the measuring instrument
Voltage switching indication
Indication proportional to voltage
Type of Controller Single-phase detection SM1AH(high sensitivity) SM1A(standard sensitivity) DM1A(*1)
Two-phase detection SM2AH(high sensitivity) SM2A(standard sensitivity) DM2A
3.3～550ｋVLine voltage (50/60 Hz)
Operating time at charging/power failure 0.5 sec or less (However, ratio of operating point setting: 70 % or less)1c (for single phase), 1c × 2 (for two-phase)
Configuration
Contact
Switching capacity/100 VDC Resistance load: 0.5 A, Induction load: 0.1 A

Installation siteof detector

Max. allowable circuit voltage 180V．DC，140V．AC
Output0～1ｍA．DC
Internal resistanceLess than 5 kΩ
About 1.5kΩ
Charging: Red light, Power failure: Green light, No power: Extinguished (milky white)
Operation indication lamp
Power supply voltage
Standard: 110 V, DC (Others: 24 V, 220 V)
Power supply current
75 mA (for single phase), 100 mA (for two-phase)Withstand voltage, insulation resistance (*2) 2 kV, AC-1 min; 10 MΩ or more/500 V, DC±7 kV, 1.2 × 50 μS (between terminals in a lump ~ terminal E & case)
Impulse withstand voltage

Meter

Outdoors

IndoorInside the cubicle

Nominal line voltage Control equipment Detector Control equipment Detector Control equipment Detector
H
H
－
－
CT
3.3kV
CT
6.6kV
CT
CT
H, ST
H, ST
H
H
11kV
H
22kV
H, ST
H, ST
DD
DD
33kV
DD
ST
ST
ST
40～160kV－
Low sensitivity (L)161kV～550kV Low sensitivity (L)－＊As for H, use high sensitivity (H) of the type SM.
＊As for ST, use standard sensitivity of type SM or type DM.

＊1. DM1A & DM2A in the table are of standard sensitivity. In addition to these, there is the low-sensitivity type SM (L).
＊2. Between terminals in a group and case. However, terminal E could be included in
the terminal group or excluded during the test.

49

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Index etc.

VOLTECT SPECIFICATION TABLE

Tel/Fax:
The person in charge(Name & Sec.)

Tel/Fax:
Installation place name & address:

Auxiliary device forvoltage detection

Delivery date:
Delivery place:

Tel/Fax:
Outdoor □Indoor □In board □Internal GIS sensor equipped □※Check instruction manual P.12 (Notice for Interval Distance Table), and please select the sensitivity of the controller.

Standard

set

HG7-SM1AH

High

set

HG7-SM1AL

Low

set

HG7-DM1A

Standard

set

HG7-SM2A

Standard

set

HG7-SM2AH

High

set

HG7-SM2AL

Low

set

HG7-DM2A

Standard

set(Standard)
110V.DC □(75～143V)(Non standard)
24V.DC □(21～32V)
Below,built-in
converter
110V.DC □(90～170V)
220V.DC □(110～250V)
110V.AC □(85V～132V)

Protector;
SingleType
HG7-P1B

Q’ty
set

Two phase

HG7-P2B

set

Detector;Type

Shield Cable

Q’ty
set

HG7-CT$-

m

set

Type
CVV-SB

Write in Type’lined m.
(Standard) 10m
Example :HG7-DD-10m

Scale
It's different depending on the line
voltage, so please refer to a wide angle
meter specification (VHG07-S-001).

Conductor’section
3.5mm2English name plate □Convertor inaide□□

Lenghts of shield cablem

Type
DVF-11M(Standard)
5Y7/1(Glossy) □(Non standard)
7.5BG6/1.5(Glossy) □N7(Glossy) □Others □Color(Standard)5Y7/1(Glossy) □(Non standard) N7(Glossy) □7.5BG6/1. 5 (Semi Glossy)
Others; □HG7-DD-

Wide range AC Voltmeter

Special specification

area

Conductor’inner core
1cGrounding hook

HG7-SM1A

Color

Others: □Discone hook stick

Operation power

Discharge stick

Two phaseQ’tySpecial specification
English name plate □Others; □Illuminator

SingleController
Sensitivity

Type

Color(Only for DD Type)(Standard)N7(Glossy) □(Non standard) 5Y7/1 (Glossy) □Others □Q’ty
set

Cover color(Standard) N1.5 □(Non standard)7.5BG4/1.5 □Length

Piece
m

pc.

Information materials

Controller;

Phase tester

In case changing a installed Voltect,please write its controller’ manufacturing number and so on for avoiding its
mis-specification and for its confirmation;
Installed controller type:HG7- M A
Manufacturing No.
Q’ty
set
Made by: date and year

Measuring
instrument

Detector insalltion place:

Railway products

Normal line voltage
kV

Voltage detector
checker

Order: □Quotation: □Customer’ name and address:

Voltage detector

VOLTECT SPECIFICATION TABLE
Note: When your receipt of client order or when your offering quotation to the client,please write its q’ty and check □ in for your confirmation.
Date:

50

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker

EWL-4

Robust, Professional Specification

LED working light
Ecopika-kun
EWL-4-M set（Model of the set）
Contents: EWL-4（Illuminator）、EWL-2B（Battery unit）
NN11024（AC adapter）

Impact Chemical
Waterproof Rechargeabletype Magnet
resistance resistance

RoHS■Features• The working light has 2 modes; lighting mode and flickering mode.
• The spotlight enables visual recognition at a distance of 10 m.
• With the built-in magnet in the hand guard, the irradiation angle can be easily adjusted.
• Shoulder belt and S-shaped hook.
■Visual recognition at a distance of 10 m
is possible.

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester■Specifications
Illuminator

EWL-4

Working light : LED × 42 pcs (equivalent to 12 W)
Spot light: 5 W LED × 1 pc
Working light : 1,500 lux or more/30 cm
Working light (dimmed state) : 500 lux or more/30 cm
IlluminanceSpot light : 50,000 lux or more/30 cm(With fully charged battery unit (EWL-2B) in every case)
Working light : Lighting About 5 hr.
Lighting (dimmed state) About 15 hr.
Flashing About 20 hr.
Continuous lighting time
(Cycle of ﬂashing: About 6 Hz)
Spotlight : About 5 hr.
（With fully charged battery unit (EWL-2B) in every case）
Battery unit (EWL-2B)
Power supply
Waterproof structure (Protection code: Equivalent to IP44)
Structure
Speciﬁed temperature range －10℃～40℃
φ60mm×275mm（except for hand guard）
Outside dimensions
About 480g（including battery unit）
WeightShoulder belt, S-shaped hook
Accessory
Light source

Battery unit

EWL-2B

Battery to be used
Charging system
Battery life
Outside dimensions
WeightAC adapter■Work/operation at hand and foot is easy
with shoulder belt.

Rechargeable type Nickel metal hydride packed battery (7.2 V, 2.200 mAh)
About 4.5 hr. (using EWL-2C)
Number of charges/discharges: 500 times or more (Diﬀers depending on service conditions.)
25mm×38mm×236mm
About 245g

NN11024

Input
Cable length
Outside dimensions
WeightAC100V～240V（50/60Hz）
About 1.8m
46mm×33mm×24mm
About 70g

■Irradiation angle can be freely adjustedwith the movable type magnet.

■Option
EWL-2B

Battery unit

NN11024

It is installed in the main body

EWL-2C-B

EWL-3DAC adapter
To charge the battery unit.

Charging standHolding unit for battery charging
to hold the main body uprightposition. (EWL-2C is required.)

EWL-3R
Cigar lighter socket adapter
It is possible to charge from acigar lighter socket of a car.
(Exclusive use for 12 VDC)

Red cover
RED color filter cover to use thework light as a warning lamp.

In the configuration of initial purchase, three items comprising EWL-4 (illuminator), EWL-2B (battery), and NN11024 (AC adapter) are required. Please order the closed stock (set item) which is economical.
Model of the set: EWL-three sets (EWL-4 + EWL-2B + NN11024)

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１. 接地マグネットをテストプレートに接続( テスト良ランプ点滅、ピー音3回）①接地線良ランプ点灯

3. ②テスト良ランプ点灯( 点検完了)

2. テストボタンを押し、電圧表示 及び充電中ランプ点滅、ピ・ピ・ピ…音◇使用前点検検電器カタロ�_英語版_Vol3-3(P80).indd 54①接地線 ②動作の確認

DK18023

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Railway products

522023/03/30 18:25

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

TEST

Index etc.

Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker

HVC-1.5N3
Voltage detector for
DC overhead contact wire

Telescopic
type

Voltage Display
SwitchVolumeControl

DC 1500V
Audio
signaling
and light
emitting

Voltage Detector for DC 1500V Contact Wires,
Visualization of decreasing Residual Voltage

Waterproof■ Features

Voltage Detection
Test Switch

・Light weight body [About half weightcompared with previous product.]
・Promote the checking before detect the voltage.

Detecting Panel・Memolize the setting of volume control.
・Simplified the checking before detect the voltage.

・Large Indication.

Grounding Magnet■ Dimensions
Grounding Magnet
Grounding Wire（About 3m）
Contact tip

DK18023

DK18009①接地線 ②動作の確認◇使用前点検3.②テスト良ランプ点灯(点検完了)

2.テストボタンを押し、電圧表示 及び充電中ランプ点滅、ピ・ピ・ピ…音Detecting Panel
１.接地マグネットをテストプレートに接続(テスト良ランプ点滅、ピー音3回）①接地線良ランプ点灯

Discharge stick

Discone hook stick

Grounding hook

Phase tester・Adopt a strong Grounding magnet.

Rubber Pad

Grip

DK18023①接地線 ②動作の確認◇使用前点検2. テストボタンを押し、電圧表示 及び充電中ランプ点滅、ピ・ピ・ピ…音3. ②テスト良ランプ点灯( 点検完了)

１. 接地マグネットをテストプレートに接続( テスト良ランプ点滅、ピー音3回）①接地線良ランプ点灯

Measuring
instrument

When shortened 1,400±50mm

Information materials

Railway products

Illuminator

When fully extended 4,100±100mm■ Specifications
DC 1500V
Working voltage range* Voltage detection of negative potential is not possible.
Operation starting voltage (Voltage to ground) DC750V±50V
Operation display (charging) Red LED and buzzer
Display Check of earth wire (Earth wire is OK) Green LED
Voltage display
Range: 0 VDC to 1999 VDC Resolution: 1 V, Accuracy within ±5%±5V
Each time when the sound volume push-button switch is pressed,
Volume adjustment forthe cycle of High → Medium → Low → High ----- is repeated.
Sound volume at a distance of 1 m
buzzer sound
High: 75 dB or more Medium: 55 to 70 dB, Low: 50 dB or less
Output voltage at test
DC1000V±200V
Dielectric strength
Contact tip (Metal fitting) ‒ Grounded part 4 kVAC, 1 min
Leakage current
1 mA or less at dielectric strength test
Battery
R6 or LR6(1.5V) × 4 pcs
Operating temperature range
0℃～＋50℃
WeightAbout 2.3kg■ Accessory

Bag for housing

53

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Voltage Detector for DC 750V Contact Wires,
Visualization of decreasing Residual Voltage

Voltage detector

Voltage detector for
DC third rail
DC 600V～1500V

・Promote the checking before detect the voltage.
・Memolize the setting of volume control.

Contact tip

・Simplified the checking before detect the voltage.

VolumeControl・Adopt a strong Grounding magnet.

Voltage
Display
SwitchAuxiliary device forvoltage detection■ Features

Voltage
Detection
Test Switch

Voltage detector
checker

Waterproof

Phase tester

Telescopic
type

Grounding hook

Detecting Panel

Discone hook stick

Grounding Magnet■ Dimensions

Grounding Wire（About 1.2m）
Contact tip

Detecting Panel
DK18023①接地線 ②動作の確認◇使用前点検2.テストボタンを押し、電圧表示 及び充電中ランプ点滅、ピ・ピ・ピ…音3.②テスト良ランプ点灯(点検完了)

１.接地マグネットをテストプレートに接続(テスト良ランプ点滅、ピー音3回）①接地線良ランプ点灯

Grounding Magnet

Rubber Pad

Discharge stick

Audio
signaling
and light
emitting

Index etc.

HVC-750N3

610±10mm

DC600V/750V/1500V
Working voltage range* Voltage detection of negative potential is not possible.
Operation starting voltage (Voltage to ground) DC300V±20V
Operation display (charging) Red LED and buzzer
Display Check of earth wire (Earth wire is OK) Green LED
Voltage display
Range: 0 VDC to 1999 VDC Resolution: 1 V, Accuracy within ±5%±5V
Each time when the sound volume push-button switch is pressed,
Volume adjustment forthe cycle of High → Medium → Low → High ----- is repeated.
Sound volume at a distance of 1 m
buzzer sound
High: 75 dB or more Medium: 55 to 70 dB, Low: 50 dB or less
Output voltage at test
DC500V±100V
Dielectric strength
Contact tip (Metal fitting) ‒ Grounded part 4 kVAC, 1 min
Leakage current
1 mA or less at dielectric strength test
Battery
R6 or LR6(1.5V) × 4 pcs
Operating temperature range
0℃～＋50℃
WeightAbout 1.4kg

Measuring
instrument
Illuminator■ Accessory

Railway products■ Specifications

Grip

Bag for housing

Information materials

1,100±50mm

54

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker

HVC-1.5N3S

Voltage detector for DC 1500V substation

Voltage detector for
DC substation■ Accessory

DC 1500V
音響
防滴発光

Bag for housing■Option

HVC-1.5N3S
The plate is attached to grounding clip
Inspection before use

It can be grounded in various place;etc cubicle
Please use two clips at the same time.

HVC-1.5N3S
HVC-1.5N3S
Grounding magnet Grounding clip
（UH20004）（UH20003）

HVC-1.5N3S
The plate is attached to
grounding clip
Inspection before use（DH18007）

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester■ Dimensions
Grounding wire (about 2.5m）
Contact tip

Grounding wire band

○Grounding clip

○Grounding magnet

Water proof
conector

Insulating Stick

Grip

HVC-1.5N3M

ferruleCrip

Voltage detector for monorail

Voltage detector formonorail■ Accessory

DC 600～1500V
Bag for housing

音響
防滴
発光

■Option■ Dimensions
Grounding hook
Grounding wire bandContact tip
Contact clip

Water proof conector
Grounding wire(about 1.5m)○Grounding clip

○Grounding magnet

Water proof conector

Water proof conector

MagnetIlluminatorferruleOperating stick

Railway products

Clip■ Specifications
Model

Information materials

Grip

HVC-1.5N3M
Grounding magnet（UH20004）

Working voltage

HVC-1.5N3S
HVC-1.5N3M
DC600V/750V/1,500V
DC1500VMax DC2,000V (in contact with bare wire）*Voltage detection of negative potential is not possible.

Operation strating voltage(Voltage to ground)
Insulation resistanceDielectric strength
Leakage current
Operating temperature range
Volume adjustment
forbuzzer soundOutput voltage at test
Battery
Structure
Weight

DC750V±50V

HVC-1.5N3M
Grounding clip
（UH20003）

DC300V±20V

contact tip-grounding clip 10MΩ±10％(with 1,000Vmega measuring instrument)
contact tip-grounding magnet AC4,000V,1 min
1 mA or less at dielectric strenght test
0℃～＋50℃
Sound volume at a distance of 1m
High:75dB Miidium:60dB or more 75dB or less Low:60dB or less
DC500V±100V
DC1,000V±200V
R6 or LR6(1.5V) x 4 pcs
Dustproof,Waterproof(Equivalent toIP44)
About 1.6kg(with grounding clip)
About 1.8kg(with grounding clip)

HVC-1.5N3M
The plate is attachedto grounding clip
Inspection before use（DH18007）

55

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Voltage Detector of Dual Use for DC Contact
Wire and AC 7kV

Index etc.

HS-1.5NJ
HS-1.5NR

Voltage detector

Medium Voltage detector
AC 6600V
DC HS-1.5NJ：600～7000V
HS-1.5NR：1000～7000V

AC
DC

Auxiliary device forvoltage detection

Telescopic
type

HS-1.5NJ■ Features

Voltage detector
checker• Grounding wire options : Clip Type (HS-1.5NJ) and Magnet Type (HS-1.5NR)• Discharging state of residual charge after power outage can be distinguished (HS - 1.5 NR)
Operation display (HS-1.5NR)
Green LED
Lighting
Flashing
○
－
－
○
－
－

Red LED and buzzer
Lighting
Sound generation－－○• When the green LED is flashing, a residual electric charge within the range of working voltages is being discharged.
• A stand-by display function is provided. When the test button is pressed, the green LED lights for about 30 sec.
(Voltage detection is possible, even if the green LED is turned off.)○： Operation－：No operation

Phase tester

VoltageDC
AC
After test and after voltage detection (not charged)
Approx. 350 to Approx. 750 V Approx. 1,000 to Approx. 2,000 V
Approx. 750 V or more
Approx. 2,000 V or more

HS-1.5NR■ Dimensions
Joint

grounding wire clip

Ferrule(4500)

1100

1370

Measuring
instrument■ Accessory

Discone hook stick

grounding terminal

Discharge stick

Contact tip (Metal ﬁtting)Grounding hook

Audio
signaling
and light
emitting■ Specifications
Model

HS-1.5NJ

AC
Working voltage range
DC
Operation starting AC
voltage(Voltage to ground) DC
Frequency (AC)Grounding system
Indication of operation

Light
Sound

Battery
Accessory
WeightDielectric strength
Leakage current

HS-1.5NJ1
6600V

600～7000V

HS-1.5NR
1000～7000V

2000V±20％
400V±20％

DC800V±100V

750 ±100 VDC (Red LED)
350 ± 80 VDC (Green LED flashes.)

50/60Hz
Clip
Magnet
It can be confirmed in the luminance of 8,000 lux.
Intermittent sound
6R61 or 6F22(9V) × 1 pcs
Clip type grounding wire (7 m)
Magnet type grounding wire (7 m)
Bag for housing
About 3,140 g
About 3,150 g
Between contact tip (metal fitting) and grounding terminal: 14,000 VAC, 5 min
Leakage current at dielectric strength test: 1 mA or lessIlluminator

Magnet-type grounding wire (7 m)for HS-1.5NR

Railway products

Clip-type grounding wire (7 m)for HS-1.5NJ

Information materials

Common bag for HS-1.5NJ/NR

56

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AC overhead contact wire
AC 20kV～80.5kV
Audio
signaling
and light
emitting

Telescopic
type■ Accessory

Waterproof■ Features• Standby display function is provided.
After pressing the test button, the green LED lights up even after voltage detection.
* The green LED automatically turns off in 1 to 2 min.
Voltage detection is possible even after turning off (in case there is no
problem with battery level)
Working voltage range
Operation starting voltage(Voltage to ground)AC20kV～80.5kV
5 kV ± 20% (bare wire)

Frequency

Charged indication(Red LED lit)

Uncharged indication(Green LED lit)
(5,090)

N.P.

TEST

Grounding hook

発光 50Hz/60HzLight
It can be confirmed in the luminance of 8,000 lux.
発音Indication of operation
Sound 50 dB or more at a distance of 2 m
Insulating stick, AC 75 kV/300mm x 1 min.
Dielectric strength(6 locations on the insulating stick, except for electrode and joints)
Leakage current
100 μA or less at dielectric strength test/1 location
BatteryLR44(1.5V) × 2 pcs
Battery life
About 4 hr. continuous operation
Operating temperature range ‒10°C to +50°C (However, there shall be no dew condensation inside.)
WeightAbout 1 kg

N.P.

TEST

1,320

Discone hook stick

Contact tip (Metal ﬁtting)* HST-W80JS-Y1 (spec. with Y-type Contact tip (Metal fitting) also exists.

Detection of Charging State
HXR-20J(For normal railways) Non-contact
of AC Overhead Contact Lines
HXR-25J(For high speed rail)
Jointly developed with JR EAST (East Japan Railway Company)

Discharge stick
Measuring
instrument

Bag for housing■ Specifications■ Dimensions

Illuminator

Voltage Detector for AC Overhead Contact wires
of normal Railways and Shinkansen

Voltage detector for

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

HST-W80JS

Medium Voltage hot-line proximity detector
AC HXR-20J
HXR-25J

20kV
25kV■Features• Alarm is generated at a distance of about 2 m from the energized
overhead contact lines, normal railways (AC 20kV) and High
Speed Railway(AC 25kV).
• It has directionality to identify overhead contact lines in a charged state.
• It is compact, lightweight, and can be fitted to a helmet witha one-touch operation

Energized part

HXR-25J

leep

ep B

p Ble

Blee

2m

■Dimensions (common to Model HXR-20J & Model HXR-25J)

18

60

OPEN
CR2025×1

55

Information materials

Railway products■Specifications

MADE IN JAPANTESTOperating sensitivity(Electric field intensity)Standard operation starting distance
Alarm operation
Sound volume
Frequency
Operating temperature range
Battery
Battery life
Dimensions
Weight

HXR-20J : AC20kV
HXR-25J : AC25kV
About 2 m (It differs depending on the environment.)
Piezoelectric buzzer type80dB/10cm or more
Common use for 50/60 Hz－10℃～＋40℃
CR2025(3V) x 1 pcs
About two years in unused state
60mm×55mm×18mm
About 40g

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■Tip metal fitting
Model name

Range of use (mm)SA106-A
Insertion type

φ10～25630g

SA106-C
Slanted insertion type

φ10～25720g

SA106-S
Compact insertion type

φ4～10

400g

Voltage detector
checker

WeightPhase tester

Dimension■Operating stick
Type
Type 5
Type 10
Type 15Type 20Type 25
Type 30

Length
0.5m
1.0m
1.5m
2.0m
2.5m
3.0m

LengthSingle rod

TypeType 35
Type 40
Type 45-A
Type 45-B
Type 50
Type 60-A
Type 60-B

Length
3.5m
4.0m
4.5m
5.0m
6.0m

Number of connections
Connection of 2 rods (1.5 m + 2.0 m)
Connection of 2 rods (2.0 m + 2.0 m)
Connection of 2 rods (2.0 m + 2.5 m)
Connection of 3 rods (1.5 m + 1.5 m + 1.5 m)
Connection of 2 rods (2.5 m + 2.5 m)
Connection of 2 rods (3.0 m + 3.0 m)
Connection of 3 rods (2.0 m + 2.0 m + 2.0 m)

Grounding hook

1.5m

External appearance

60mm2
19/60/0.26
680g/m
15.2mmDiscone hook stick

38mm2
19/38/0.26
455g/m
12.9mm100mm237/51/0.26
1120g/m
19.0mmDischarge stick

1.5m

4.5m

■grounding wire
Cross-sectional area
Wire conﬁguration
Mass
Finished outside diameter

Auxiliary device forvoltage detection

Voltage detector

and grounding metal fitting.

Index etc.

production is possible with combination
Grounding hook Customof tip metal fitting, length of operating rod,
length and size of earth wire,
for railways■Grounding metal fitting (SA120)
100

53

6

1.5m

125

Measuring
instrument

70

55

28 31

40

100

Mass: 1,000g■Standard model
Groundingmetal ﬁtting

Bag forhousing

SA120
SA120

Sold separately
Sold separately

Information materials

Type
Tip metal ﬁtting Grounding wire
Operating rod
SA106A Type 45-A SA106A 60mm2×7m 4.5 m, connection of 2 rods (2.0 m + 2.5 m)
SA106A Type 45-B SA106A 60mm2×7m 4.5 m, connection of 3 rods (1.5 m + 1.5 m + 1.5 m)

Railway products

Illuminator320
2-φ10 holes

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検電器カタロ�_英語版_Vol3-3(P80).indd 61

Information materials

Railway products

Illuminator

Measuring
instrument
Discharge stick
Discone hook stick

Grounding hook

Phase tester

Informationmaterials

59

2023/03/30 18:26

Voltage detector
checker
Auxiliary device forvoltage detection
Voltage detector

Index etc.

To prevent accidents during electrical work, extensive research has been carried out to improve facilities/equipment,
working methods, and mechanical tools. Among those, the voltage detector for checking ﬁnal charging status and elec-

Index etc.

Medium/Low voltage detector and its correct use(Article 339).
A voltage detector is a device that detects whether electricity is ﬂowing in a circuit or not. Various types of detector
have been manufactured and are widely used. But, there was no oﬃcial standard for the structure and performance ofvoltage detectors, and they were mainly manufactured according to the in-house speciﬁcations of users, such as electric power companies. However, since the electronic circuit voltage detector with a built-in battery was developed inrecent years, detectors with complicated structures and unique modes of operating performance have been manufactured by various companies. Accordingly, the National Institute of Industrial Safety in Labor Ministry (at that time) released the Safety Guideline on the structure, performance, test method, and use of these voltage detectors, in order tomake their selection and correct use well known.
The following explains the structure, performance, and correct use, mainly of high/low voltage detectors for AC cir-

Auxiliary device forvoltage detection

ﬂowing through them using a voltage detector before touching them. Their use is also required by OSH Regulations

Voltage detector
checkerwith a power stoppage. It is important for workers to conﬁrm without fail, that electricity lines do not have electricity

Phase tester

During electrical work, it is not uncommon for electric shock accidents to occur due to mistaking live lines for lines

Voltage detector

tric power outages of circuits and apparatus onsite is an indispensable device for preventing electrical accidents.

Among commonly used voltage detectors, the neon light

In general, voltage detectors have a structure with a de-emission type, which has the merits of a simple structure

tector built into a casing of insulation material. When theand not requiring a power supply, has been widely used.

contact tip of the voltage detector makes contact with a

However, its weak luminance is a drawback when check-cableway (electric circuit) as shown in Fig. 1, it detects

ing if its lamp is lit, which is a vital point. Accordingly, aminute electric currents Io ﬂowing in the Electric line →better indication of detection than that provided by the

Detector → Stray capacitance to ground in the detecting

discharge light emission from a neon tube has been re-part Co of the detector → Ground, and is activated. Then,quired by users. Today, a voltage detector that can

it identiﬁes the charging or electric power outage status

detect a voltage through an insulated cable and indicateof the circuit, indicating the result by lighting a lamp or

it has been developed, with battery and ampliﬁer circuit

sounding an alarm.

built in. This has become a commonly used type.

power supply equipment, etc.

There are various types of voltage detector, depending

Iotargeted application, such as for overhead lines and substations. There are many types of voltage detector includ-Electric line

Voltage to ground

Insulating sticking, for example, low voltage driver type or pencil typevoltage detectors, which can easily check whether or not
a voltage is applied to a household plug socket and to thecable terminals of electric appliances, as well as voltage

Stray capacitance to groundin the detecting part Co
Co

Co

Co

GroundInformation materials

and special high voltage detectors, and according to the

Railway products

Fig. 1 Principle of voltage detector

Detectoron the working voltage, such as low voltage, high voltage,

Discharge stick

1.1 Voltage detection of AC circuit

Measuring
instrument

detectors used for construction work, inspecting electric

Illuminator

1. Structure and operating principleof voltage detector

Discone hook stick

Grounding hookcuits, which are in general use.

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Index etc.

◇Neon light emission type voltage detector(Fig. 2)

Fig. 3 Audio signaling and light emitting type low voltage
detector (example)

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

This made use of the feature whereby if a discharge volt-

Light indicator

age is applied to a neon discharge tube, it glows a bril-Clip(grip)

liant orange color, even in the case of a minute current. It
has been widely used for low, high, and special high volt-

Contact tip

Sound emission partage detectors, because its structure is very simple and it
is easy to handle. Its drawback is that the weak lightemitted is diﬃcult to verify in well-lit areas, and voltage[Internal circuit diagram]Contact tip

Lamp
Sensitivity adjustment VR

detection is not possible through the covering of an insu-

Voltage level detection

Flicker

Acoustic frequency oscillation

TEST

lated cable.

BuzzerBattery
Stray capacitance toground in thedetecting part Co tothe human body

Electric line

Fig. 2 Neon light emission type voltage detector
Low voltage neon type voltage detector

Electric line

Contact tip

Clip(By hand touch →earth)
Neon tube ２MΩ～10MΩ

Fig. 4 Audio signaling and light emitting type high/low voltage
detector (example)
Light indicatorIntermittent light emission at low voltage,
and continuous light emission at high voltage* At present, this type is not sold.

Test button

For conﬁrming that the internal
electronic circuit is normal

GripSound emission part

◇Electronic circuit type voltage detector(Fig. 3) (Fig. 4)

Contact tip

To make contact with an electric
cable, etc. for voltage detection

status by incorporating a battery and an electronic ampliﬁer circuit with semiconductors inside the voltage detector. These amplify the minute detection current to lightinto an audio frequency to generate an easy-to-hear soundInsulating stick

Hand strap

This device identiﬁes charging or electric power outage
Internal circuit diagram
Withstandvoltage R
Electric line Contacttip

an easy-to-see indication lamp, and convert the current
Measuring
instrument

Test button

Lamp
Level detection(low voltage)

Acoustic
oscillation

Intermittent

Level detection(high voltage)

BuzzerBattery

Test button

Co

Floating capacitanceto the earth

using the switching circuit and oscillating circuit.
cuit it is possible to manufacture voltage detectors withvarious characteristics and to have the common type forhigh/low voltages, as well as to detect a voltage throughan insulating sheath. Furthermore, because electronic circuit type voltage detectors are provided with a button foreasily checking the battery and built-in circuit, it is easy
to conﬁrm a voltage detector’s functions.

Information materials

Railway products

Illuminator

The great advantage is that by designing an ampliﬁer cir-

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(target voltage to be detected) diﬀers depending on theto have the contact tip make contact with an exposedtype of voltage, wiring, and grounding system, and the de-live part of a electric line then create a closed circuit bytection method also diﬀers between AC and DC, a basic

connecting the earth terminal to the ground, and ﬂow atask of voltage detection is to identify the kind of Electric

direct current (Fig. 5), because the current does not ﬂow

line (electric circuit) in which the voltage is to be detect-

via capacitance, unlike the case of AC. Therefore, voltage

ed, then select a suitable voltage detector, and executedetection through a covering (sheath) is not possible involtage detection with the correct method.

the case of a DC circuit. Furthermore, a voltage detector
Fig. 6 Grounding system and voltage to the earth of DC circuit

over, voltage detection in a DC circuit with the cableway[Mid-point grounding type]route for the current. The grounding system and voltage

EPE

to the earth of the low voltage DC circuit are shown involtage to ground(Target voltage to be detected)

N

Fig. 6.

‒

E
V
2

E
V
2

Phase tester

not grounded is impossible, because there is no return

Voltage detector
checker

exclusively for AC use cannot detect a DC voltage. More-

Index etc.

When detecting the voltage of a DC circuit, it is possible

Voltage detector

As described above, because the voltage to the ground

Auxiliary device forvoltage detection

1.2 Voltage detection of DC circuit

Fig. 5 Voltage detection of DC circuit

Grip

Grounding hook

Sound

Light indicator emission partE
voltage to ground(Target voltage to be detected)

NElectric line

Contact tip

‒EV

0V

grounding terminal

Discharge stick

Minus (‒) side grounding typeP

The Contact tip makes contact with the exposed live part,and the grounding terminal is connected to the ground.
Then, a closed circuit is created, and minute direct
current ﬂows.

Discone hook stick

Contact tip[One-side line grounding type]
Plus (+) side grounding typeP

E
voltage to ground(Target voltage to be detected)

N＋EV

Information materials

Railway products

Illuminator

0V

Measuring
instrument

grounding terminal

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker
Phase tester

2. Performance required of voltage
detectors

AC denotes the range of higher than 600 V to 7,000 V or

The ﬁrst main performance priority from the viewpoint

nance).

of a voltage detector’s intended use is voltage detection

In addition, in the case of a voltage detector dedicated tosensitivity (operation starting voltage). It tends to be con-high voltages, there are various types depending onsidered that as sensitivity increases, performance increas-target cableways and applications, such as the case in

es. However, as sensitivity increases, there are concerns

which the voltage to earth of 1,900 V for a 3,300 V circuitthat false-positive indications increase due to noise and/or

is set at 1,000 V (almost 1/2) considering the margin for

induction. Other important things to consider are with-

voltage detection, in order to prevent miss-operation due

stand voltage in terms of the safety of users, and indica-

to induction from the live wire, as far as possible, and thetion method from the viewpoint of certainty.

case in which the working voltage is set at 3,300 V

lower;” speciﬁed in Technical Standards (ministerial ordi-

against the voltage to earth of 3,800 V for a 6,600 V cir-

2.1 Operation starting voltage(detectable minimum voltage)

cuit, considering the margin, and to enable voltage detec-

In normal cases, a user of a voltage detector holds theenables detection of the voltage to earth for the targeted

main body or one end of the insulating stick connected tocircuit’s voltage, through a sheathed wire and with ation through a sheathed wire. In general, the value that

Discharge stick

Discone hook stick

Grounding hookthe main body with a hand(s), then makes contact between the detector and one line of the cableway, detect-Fig. 7 voltage to ground of various circuits (detection voltage)ing the voltage ﬂowing in the conductive cableway to theHigh voltage Low voltage [In the case of a single-phase three-line system, 100 ‒ 200 V]

earth (voltage to the earth). Therefore, the operation start-

100V

ing voltage is indicated by the voltage to the earth.

100V

The target voltage to be detected in a low voltage circuit
and a high voltage circuit is the voltage to the earth, asshown in Fig. 7, which is lower than the line voltage. In
is naturally impossible, because the voltage to earth is

Measuring
instrument

mum circuit voltage, which is 100 V (95 to 107 V), and theIlluminator

200V

Transformer

thermore, there is also a case where 600 V or higher can

0V

200V

100V
100V

Transformer

Voltage tobe detected

200V

200V

100V 0V 100V 173V

EarthHigh voltage Low voltage[In the case of a three-phase four-line system, 440 V]
440V

440V
Voltage tobe detected

440V
Transformer

254V

Earth

as a high voltage, because the voltage to the earth is 254
which is the highest voltage of a low voltage circuit. Fur-

200V

200V

where a working voltage of 300 V or higher is speciﬁed
V, with regard to a 440 V three-phase four-wire system,

Voltage tobe detected

High voltage Low voltage [In the case of a three-phase four-line system, 100 ‒ 200 V]

er the inﬂuence of induction from a high voltage.
(2) Regarding a high voltage detector, there are cases

100V

200V

Earth

ages, there is also a detector in which the voltage to thethe OSH Regulations, because there is no need to consid-

0V

200V

operation starting voltage is set at 65 V ± 15 V, or not toearth is set at 50 V or lower as the target (limit) under

100V

200V

[In the case of a three-phase three-line system, 200 V]

High voltage Low voltage

zero.

exceed 80 V. In a voltage detector dedicated to low volt-

Railway products

Earthaddition, voltage detection in a grounded cableway (line)(1) The low voltage detector generally targets the mini-

Information materials

Transformer

Voltage tobe detected

6.6kV（3.3kV）
6.6kV（3.3kV）

254V

254V 0V[In the case of a high voltage]

6.6kV（3.3kV）

3.8kV（1.9kV）

3.8kV（1.9kV）

Voltage tobe detected

3.8kV（1.9kV）

be detected, based on the regulation: “High voltage of

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of actual use for defective (porcelain) insulators, etc.

of an apparatus and supplies material standard for Japa-

among apparatus for live-line work, as described in thenese electric power companies.

Public Notice of the Ministry of Labour No. 33, Article 9.

Company A

250±50(2,900 or less) audio signaling and light emitting typeCompany B

300±50(3,300 or less)〃Company C 1,000 or less

3,300 or less〃Company D

2800±500〃

1000±200

to be used, for one minute. Regarding voltage detectors
with a built-in battery, detectors having a withstand voltage performance of not only 14,000 V (6,900 V × 2), butalso 20,000 V are manufactured,(Note) (1) The reason why the ratios in column (a) and column (b) diﬀer signiﬁ-

cantly between companies A, B and companies C, D is due to structural diﬀerences in the voltage detector.
(2) Although the values in () of column (b) are not described in theapparatus and supplies material standard, they are used as practicalstandard values.
(3) That of company A is a common type for 50/60 Hz, and the others
are dedicated to a designated frequency.
(4) The table above describes only the high voltage range of a high/low
voltage detector.
(The low voltage range is speciﬁed as 65 ± 15 V by every company.)

2.4 Representation of the result of detection(light and sound)
It is speciﬁed that detection by voltage detectors shall be
indicated by either

light emission or sound generation(Safety guideline for voltage detectors).
Regarding indication by light emission, it is generally pos-

2.2 Non-operation distancesible for light emissions to be identiﬁed if the luminance

When a voltage detector approaches a high voltage cir-

is 8,000 lux on a practical basis in shadow in sunlight

cuit, it is activated from a certain distance. However, if op-(place without direct sunlight).

eration starts too far away, a phenomenon is generated

Regarding sound indication, it is also necessary to consid-

whereby discriminating between live lines and non-ener-

er locations with high ambient noise of 80 dB, such as in

gized lines among plural targets becomes impossible.

the vicinity of roads in urban areas, when reviewing theThen, it is considered that, not only can the primary pur-usage environment of a voltage detector. However, apose of the voltage detector not be achieved, but it is also

sound volume of 50 dB or more is deemed suﬃcient indangerous. Accordingly, it is common to specify a mini-practice, using sound generated at around 3,000 Hz, tomum distance for a system, beyond which operation iswhich the sensitivity of a human’s auditory sense is

not started when the voltage detector approaches (called

high, because ambient noise is generally in low frequency

the non-operating distance), and in the case of a high volt-

bands, which corresponds to the low tone range.

Grounding hook

Coated wire (b)sponding to two times the voltage of the target cableway

Discone hook stick

Bare wire (a)RemarkDischarge stick

Operation starting voltage [V]Generally, it shall withstand an AC test voltage corre-

Measuring
instrument

Table 1 Partial example of the apparatus and supplies material for a voltage detector

Index etc.

For comparison, Table 1 shows a partial quoted example

Voltage detector

A high voltage detector is classiﬁed from the viewpoint

Auxiliary device forvoltage detection

age detection.

Voltage detector
checker

2.3 Withstand voltage

Phase tester

margin considered appropriate for safety, is used for volt-

Information materials

Railway products

Illuminator

age, the non-operating distance is usually 3 to 5 cm.

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker
Phase testerthat conforms to the target cableway; (Example: A low

3.1 Check carefully before use.

voltage detector cannot detect high voltages). Also con-

Because a voltage detector is an important device for pro-ﬁrm the status of the cableway, with switches, indication

tecting the lives of workers, it must always be stored andlamps, and circuit diagrams, etc.

handled carefully. External appearance as well as lighting(2) Set the insulating stick to the normal state by extend-

should also be check before use. Defective products must

ing and/or tightening it, depending on the type of voltage

be replaced immediately.

detector.

(1) Conﬁrm whether the working voltage range of the(3) During voltage detection, do not touch parts othervoltage detector conforms to electric line or not.

than the grip of the voltage detector, because this may be(2) Visually check for the presence or absence of breakag-

dangerous.

es, dirt, ﬂaws, cracks, etc. in the voltage detector.

(4) When detecting a high voltage, wear insulated rubber(3) Conﬁrm that the detecting function of the voltage de-gloves when a hand approaches within a distance of 60

tector is normal, using a known power supply, voltage de-cm from the high-voltage part. If an ordinary voltage de-tector checker (Fig. 8), etc.

tector with a length of 25 cm is used, be sure to wear in-(4) For a the voltage detector with a built-in battery, con-sulated rubber gloves. In the case of an inspection tour,

ﬁrm that the internal circuit and battery voltage are

and if protective equipment and/or protective guard arenormal by checking the mechanism (test button).

not carried, it is convenient to use a long voltage detector
with an insulating stick.

Fig. 8 Voltage detector checker(5) When there is a risk of a surge voltage being generated, such as when a lightning strike occurs or when opening/closing a circuit breaker, switch, etc., stop using the

Discone hook stick

Grounding hook

3. How to use voltage detectors correctly

voltage detector.
(6) Voltage detection in the rain should be avoided, in prin-

Discharge stick

ciple. When it is performed from sheer necessity, pay attention to the wet condition of the voltage detector, andwhether operation in the rain is reliable or not. It is also
necessary to investigate and conﬁrm whether there is aInformation materials

Railway products

Illuminator

Measuring
instrument

risk of electric shock or not.
(7) Perform voltage detection for each phase, sequentially.

■Point to be noted about contact tip madeof conductive rubber(8) Perform voltage detection by moving the voltage detector closer from the earth side to the electric line.

Insulation materials such as oil shall not adhere to
the conductive rubber part (detector). In particular,

3.3 How to make contact with a voltage detector

if gasoline, alcohol, etc. adhere, conductive properties

Hold the grip of a the voltage detector ﬁrmly, and have it

can be lost.

make contact with the part targeted for voltage detection.

Do not wipe it with chemicals, etc. When cleaning,

When detecting voltage through a covered (sheathed)use a soft and clean dry cloth.

wire, ensure suﬃcient contact between the detector andthe wire as shown in Fig. 9. Otherwise, capacitance between the core wire and detection metal ﬁtting changes,

3.2 Points to be noted for voltage detection

and operating sensitivity decreases.

(1) Before voltage detection, conﬁrm that the voltage detector corresponds to a suitable working voltage range

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Moreover, when the residual charge is checked, use a
Main body

Electric line

voltage detector for dual AC/DC use, and perform voltMain bodyage detection for the electric potential at both ends
where the electric charge remains (Fig. 11).

with conductive tape. (Fig. 10)

ﬂows in a cable.

Insulating layer

The voltage detector does
not operate because there
is a conductive shielding
layer and it is grounded.

etc. on the cableway, it can be hazardous even with an

Voltage detector
checker

Power cable

Core wire
AC/DC high and low
voltage detector

Grounding wire

C: Capacitance between core wire and shield
When a circuit breaker is open, residual
charge at C (DC portion) remains.

(2) Voltage detection method of residual charge between terminals ofa phase-advanced capacitor, etc.
AC/DC high and low
voltage detector

Groundingwire

3.5 Electric discharge of residual charge
When there are electric power cables, power capacitor,

Grounding clip

(1) Voltage detection method for residual charge in power cables,
etc. against the groundFig. 10 Voltage detection for a high voltage electric line is not possible.

Core wire

Grip

AC/DC high and low voltage detector

voltage detector. Furthermore, there are also cases ofusing a current detector for detecting a current that

Insulating stick

AC Light indicator
GroundingSound emission part wire

Perform voltage detection at the terminal that is speciallyprovided at the cable end for detection, using a dedicated

DC Light indicator

Phase tester

possible because the conductor is shielded and grounded

contact tip

Discharge stick

Voltage detection for the high voltage power cable is not

Fig. 11 Method of detecting a residual charge

Groundingwire

Measuring
instrument

3.4 Voltage detection for a high voltage electricline is not possible.

Grounding hook

Electric line

Auxiliary device forvoltage detection

charge resistor and capacity of a condenser.

Contact tip

Voltage detector

charging, depending on the resistance value of a dis-Wrong

Contact tip

there are also cases in which it takes a long time for dis-Discone hook stick

Correct

essary to take suﬃcient time when discharging, because

Index etc.

Fig. 9 How to make contact with the contact tip of the surface of
coated wire

Using two DC voltage detectors, it is possible to detect theresidual charge between lines.

3.6 Precautions for carrying and storage

way where its open-circuit has power cables, power ca-(1) Handle voltage detectors carefully, and pay attention

pacitor, etc. and there is a risk of danger due to residual

not to apply a shock or strong force, caused by dropping,charge, the corresponding residual charge must be se-placing a heavy object on top, etc.

curely discharged with a safe method,” and it is neces-(2) Pay attention not to leave it on a road or at a placesary to completely discharge the residual charge with athat is subject to high temperatures, such as inside a cardischarge bar or similar means. At this time, there arein summer.

cases of a charge remaining between the cableway and(3) In winter, when a voltage detector is suddenly

the earth, and cases of it remaining between lines. So, dis-brought out from a hot room to the cold outdoors or the

charge all residual charges with care. In addition, it is nec-

reverse, dew condensation can be generated at the volt-

Railway products

No. 339 Article 2, it is speciﬁed that “Regarding a cable-

Information materials

after an electric power outage. In the OSH Regulations

IlluminatorAC cableway, because a residual DC charge remains

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Index etc.
Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker
Phase tester

age detector, and its operating functions may be aﬀected.
So, attention is required.

The site environments where voltage detectors are used

(4) For storage, select a dry, clean dust-free location

are not always the same, and detection performanceinside a room, which is not exposed to direct sunlight.

sometimes changes depending on usage conditions. The
conditions with notable inﬂuences are as follows.

3.7 Don’t forget to conduct periodic inspections
Voltage detectors are excluded from periodic self-inspections as determined by the law (Ordinance on Industrial

4.1 When the correct position of the grip is
not identiﬁed:

Safety and Health). However, unlike work tools such as

If the grip of a commonly used short voltage detector ispliers and screwdrivers, voltage detectors are important

not held ﬁrmly, and when it is used in a state in which it

safety equipment used to prevent electric shock disasters

is only held by ﬁnger tips, the operation starting voltage

for workers in electric-related activities. As such, it isincreases because the value of capacitance C1, as shown

preferable to periodically check the voltage-resistance per-in the equivalent circuit of Fig. 12, decreases.

formance of voltage detectors. (Voltage Detector Safety
Guidelines)

Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
IlluminatorFig. 12 Equivalent circuit using a voltage detector(1) For high and extra-high voltage detectors, the following periodic self-inspections are recommended according
to the product.
• Short-type voltage detectors for high/low voltage(HSF-7, HSE-7T1, HSE-7G)
Please conduct a voltage-resistance test for 1 minute at atest voltage of 10 kV or higher once a year. (Voltage Detector Safety Guidelines RIIS-TR-85-2)

Electric line

Internal circuit of voltage detector

Contact tip

C1 Human body

Capacitance between internal
element at the grip of thevoltage detector and thehuman body

C2

Capacitance between
the foot of a humanbody and the ground

Voltage to ground of theelectric line that is the targetof voltage detection

Ground• Other models not included above (including phase testers)
Please conduct a voltage-resistance test for 1 minute at

4.2 When voltage detection is performed neara high voltage electric line:

2x the maximum working voltage once every six months.

When the detector of a high/low voltage detector (with(In conformance with Article 351 of the Ordinance on In-

built-in battery) makes contact with an earth wire or

dustrial Safety and Health (Periodical Self-Inspection ofgrounded metal while approaching a high voltage live

Personal Insulating Protective Equipment, etc.) and Arti-part on a pillar or inside an electric utility room, the volt-cle 9 of the Standards for Personal Insulating Protective

age detector sometimes displays “Voltage is applied,”

Equipment, etc. (Voltage Resistance Performance of Livein the range of low voltage use.

Line Work Equipment)) *For testing methods, refer to P.

This phenomenon is explained, as shown in Fig. 13, as the72 and P. 74.

human body and/or grip of the voltage detector that ap-(2) When conducting a periodic inspection, check andproaches the high voltage line having a voltage that ﬂows

change the batteries that have been included with theto the earth due to induction from the live line, and an in-voltage detector, as the individual batteries experience

duction current ﬂows in the reverse direction from thenatural discharge even if the voltage detector is not used.

grip of the voltage detector to the detector, causing it toInformation materials

Railway products

4. Inﬂuence of unique usage conditions

operate. In such a case, abnormal operation can be prevented by keeping it as far as possible from the high voltage line, or carrying the voltage detector from the earthside, because induction is decreased.

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high voltage electric line
(live line)

CapacitanceContact tip（

C1

CapacitanceIndex etc.

this document helps ensure correct use of voltage detectors. For details of quoted regulations, etc., refer to the fol-Induced voltage
from high voltage line

(between high voltage line and human body)

Internal circuit ofvoltage detector

the system/mechanism is naturally required. We hopelowing.

Co

Contact withgroundHuman body using thevoltage detector
Capacitance

between internal element at the grip ofthe voltage detector and human body

• OSH Regulations No.339 (Work following an elec-

C2）（

between foot of human body,etc. and the groundtric power outage)• OSH Regulations No.342 (Work in proximity to a）

Groundhigh voltage)• OSH Regulations No.348 (Electrical insulating pro-

Equivalent circuit when approaching a high voltage electric line

tectors, etc.)• OSH Regulations No.352 (Inspection before use,etc.)

4.3 In the case of apparatus that is not grounded:
To reduce the inﬂowing current to the human body to a

• OSH Regulations No.354 (Exclusion from application)very small value, the impedance between the detector• Public Notice of the Ministry of Labour No.33 (re-and the human body is increased to a very large value.

vised version), 1975 (Standard of protectors for insu-

Accordingly, when the casing of the apparatus is notlation, etc.)

grounded as shown in Fig. 14, the voltage detector some-• Technical guideline of National Institute of Industrial Safety in Labor Ministryof the apparatus is large, even if the insulation of the

RIIS ～ TR ～85～2

target apparatus is normal.

(Safety guideline for portable voltage detector for

In such a case, it is necessary to conﬁrm whether thehigh voltage wiring cableway)

Measuring
instrument

times gives an indication when the inductive capacitancegrounding of the apparatus is perfect or not. Further-

Voltage detector

electrical work, correct use with suﬃcient recognition of

Auxiliary device forvoltage detection

By contacting the voltage
detector from the earth side,
operation does not occur.

Earthtectors are important items for ensuring safety during

Voltage detector
checkerIo

tors has been provided above. Again, because voltage de-Phase tester

Grounded metal ﬁtting

A comprehensive explanation of high/low voltage detec-

Grounding hook

The grip and/or human bodyreceive induction from a highvoltage, then the current ﬂows
in the reverse direction toward
the detection metal ﬁtting, andthe voltage detector issometimes operated.

Co※

Discone hook stick

Inductive capacitanceCo※

Discharge stickhigh voltage electric line※

using a meter with a relatively low impedance, such as
an analog tester.
Fig. 14 Voltage detection at the casing of electric apparatus
Motor, etc.

Switch box, etc.

Inductive capacitance

Voltage detection

M
Metal case
If it is not grounded,
operation may be occurred.

The voltage detector
may be operated.

Railway products

sure the voltage to verify if it is in a safe range or not

Illuminator

more, in the case of apparatus that is not grounded, mea-

Information materials”※

Fig, 13 How to make contact between detector and surface of asheathed wire

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Index etc.

Product Warranty, Maintenance■Warranty period
・Product warranty period is one year after purchase. If any failure, trouble, etc. is caused during normal

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

use in the course of the warranty period, we will repair or replace it free of charge.
■Scope of warrantee
・If disassembly, modification, etc. is performed by customers, the product becomes outside the scope of
warranty.
・Consumable parts such as batteries attached to products, etc. are outside the scope of warranty. Furthermore, because attached batteries are provided for the purpose of confirming operation, early replacement isrecommended.
■Repair・If the product malfunctions, please inquire at a sales office of our company or a sales agent. Requests forrepair will be received through sales agents.
・When an estimate before repair is needed, please request it when asking for the repair. When declining
repair after submission of the “estimate before repair,” the cost of diagnosis will be requested.
・Warranty period after repair is six months. Scope of warranty is limited to the corresponding portion(s)repaired, and even within that warranty period, any new problem arising is outside the scope of warranty.
[Period for repair]
Materials and components for repair are kept for a minimum of five years after stopping manufacture ofa product. However, please note that there are cases in which repair can become impossible before that
period has expired.
■Recommended period for replacement(voltage detector, phase tester, auxiliary device for voltage detection, etc.)
Products can be used for a long period if they are handled with sufficient care. However, it is inevitablethat functional deterioration occurs to the strength of components, insulation performance, etc. due toaging, micro-cracks caused by shocks when handling resin parts, etc. For safety, please use the productrecommended replacement periods.
For a detailed table, please inquire at our company’s homepage (URL is given on the back cover of thecatalog) or a sales office.

Information materials

Railway products

Illuminator

until the recommended time for replacement under product control. The table to the right summarizes

Product classification

Recommended period for replacement

Low voltage detector

3 to 5 years

High voltage detector
High voltage & special
high voltage detector
High voltage & special
high voltage detector(Non-extendable type)

5 to 7 years

5 to 10 years

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・For high voltage and special high voltage detectors, we recommend periodic inspection at least once a

Index etc.

■Periodic inspection, calibration test

・If calibration documents are required when purchasing a new product, please request them when placing an order.
■Consigned testing
Taking advantage of being a leading maker of domestic test equipment and many years of experience, we

Simulated power pole for electricity distribution line

■ISO management system Acquiring certification of ISO9001, ISO14001
Hasegawa Electric Co., Ltd. has acquired certification of “ISO9001,” which is the international standard of
the Environment management system.
ISO9001 Registration No.: 0921

Information materials

Railway products

Illuminator

ISO14001 Registration No.: E635

Measuring
instrument

the Quality management system, and certification of “ISO14001,” which is the international standard ofDischarge stick

Voltage detector test equipment

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

will execute withstand voltage tests for products even made by other companies.

Auxiliary device forvoltage detection・After the calibration test, we will issue a test report, calibration certificate, and traceability certificate.

Voltage detector

year. For requests, please inquire at a sales office of our company, or a sales agent.

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In order to use the voltage detector correctly

Low voltage use (For AC)■Holding the voltage detector correctly

The contact area with the hand affects the sensitivity of thevoltage detector. So, appropriate sensitivity cannot be obtained
unless it is held firmly. Also, it is not possible to use rubber gloves
for high voltages or gloves made from thick fabric.

Bad

Good

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

*Unauthorized copying and reproduction is prohibited●Hold the grip ﬁrmly.

●It is not possible to detect the voltage correctly if the grip isheld with the tips of the ﬁngers.

■Visual inspection■Withstand voltage testingContact tip

Illuminator

Test voltage:
Maximum working voltage×2

Information materials

Railway products

Test time: 1 minute

Grip
Metal foil, etc.

Visual inspection items●Press the test button for about ﬁve seconds and checkthat there is no change in the lamp or the sound.
●Check that there are no problems such as damage, dirt,
scratches or cracks.

●Apply a voltage between the contact tip and the grip
(at a position near the contact tip).

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The contact area with the hand affects the sensitivity ofbe obtained unless it is held firmly.

Voltage detector■Holding the voltage detector correctly

Bad●Hold the grip ﬁrmly.

●Never hold a part other than the grip when detecting
voltages. This is extremely dangerous.
●It is not possible to detect the voltage correctly if the grip isheld with the tips of the ﬁngers.

■Withstand voltage testing

Measuring
instrument■Visual inspection

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Good

Index etc.

Medium and Low voltage use (For AC) the voltage detector. So, appropriate sensitivity cannot

Contact tip

Illuminator

Test voltage:
Maximum working voltage×2

Metal foil, etc.

Visual inspection items●Press the test button for about ﬁve seconds and checkthat there is no change in the lamp or the sound.
●Check that there are no problems such as damage, dirt,
scratches or cracks.

●Apply a voltage between the contact tip and the grip
(at a position near the contact tip).

Information materials

Grip

Railway products

Test time: 1 minute72

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■Holding the voltage detector correctly

Bad

Good

Index etc.
Discone hook stick■During storage

Discharge stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Medium voltage & High voltage detector use■During use●Hold the grip ﬁrmly.
●Telescopic type voltage detectors should be extended as far
as possible for use.

●Never hold a part other than the grip when detecting voltages.
●Do not use a telescopic type voltage detector to detect
voltages in its shortened state.

■Visual inspection

Information materials

Railway products

Illuminator

Measuring
instrument

Extend as far as possible

Visual inspection items●Press the test button for about ﬁve seconds and check that there is
no change in the lamp or the sound.
●Check that there are no problems such as damage, dirt, scratches orcracks.

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Index etc.

*Unauthorized copying and reproduction is prohibited■When the test voltage exceeds 75 kV
Divide the test points into parts 30 cm long and apply the test voltage
across each of those parts

Auxiliary device forvoltage detection■When using a withstand voltage tester output voltage(MAX 75 kV)

Voltage detector■Withstand voltage testing

Voltage detector
checkerContact tip

30cm

75kV

30cm

75kV

30cm

75kV

30cm

75kV

Phase tester

Red line

Test voltage: Maximum working voltage×2
Test time: 1 minute

Discone hook stick

Grip

Grounding hook

Metal foil, etc.

Discharge stick

Test points

Measuring
instrument

Metal foil, etc.

methods by quoting the regulations and others listed below.
●March 28, 1961 LSB Notification No. 247“Regulations on the performance of personal insulating
protective equipment”(Ministry of Health, Labour and Welfare)●4th Edition Test standards for personal insulating protective
equipment, etc.
（Issued by: The Expert Group of Expertise on Industrial Safety）●JIS C 4510-1991 Hook bars for disconnecting switch operation

Example)For case of HST-70
Working voltage range: 20 kV to 80.5 kV
80.5 kV (Maximum working voltage) × 2= 161 kV (Test voltage)
161 kV / 75 kV = 2.15 (Number of sections)= 3 sections (rounded up)

Railway products

Hasegawa Electric has defined the withstand voltage testing

Number of sections: Test voltage / 75 kV（Rounded up）

Information materials

Test voltage: Maximum working voltage×2

Illuminator

Method for determining the number of sections

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①Visual inspection of appearance and structure
Battery check by pushing the test button③Turn oﬀ the Circuit Breaker
Turn oﬀ the disconnector
switchInformation materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

Confirming dead-line work

②Conﬁrm normal operation of voltage detector contacting any
charged conductor already known

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Index etc.
Auxiliary device forvoltage detection

Voltage detector④Bring the voltage detector into
contact with Line 1, conﬁrm thepower is oﬀ.
Bring the voltage detector into
contact with Line 2, conﬁrm thepower is oﬀ.
Bring the voltage detector into
contact with Line 3, conﬁrm thepower is oﬀ.

Phase tester

Voltage detector
checker＊Conﬁrm all 3 lines

Grounding hook

ker
ctor

⑥Connect the grounding device
to earth terminal⑦Connect the contact clamp to Line 1
Connect the contact clamp to Line 2
Connect the contact clamp to Line 3＊Connect all 3 lines

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick⑤Visual check of grounding hookset.
Appearance and construction
check

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Index etc.

■Contents

for AC and DC.

Ground fault protection relay for AC
Zero phase current transformer
Transformer for ground mode measuring instrument
Ground fault protection relay for DC
Ground fault current transformer for DC
DC ground fault protection relay■DC ground fault protection relay forquick chargers of electric vehicles(Conforming to CHAdeMO standard)■Plug-in type DC ground fault protection relay■DC ground fault current transformer■DC circuit breaker for wiring withdirect current leakage alarm■Plug-in type AC current leakage relay■ωC measurement type digital ground fault
protection relay

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

A separate volume with a blue front cover is provided as the general catalog of ground fault protection relays

Voltage detector

Introduction to the General Catalog of Relays

77

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