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
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（C）2023 HASEGAWA Electric Co.,Ltd. All rights reserved.

Railway products

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

We are in constant pursuit of technological innovationin order to create a society of comfortable
and safe electronics.

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 companyʼs products playa key role in creating safe electrical environments.

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

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 peopleʼs 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 precise-

ClientDesignSales

Production

ly because our entire company takes a position of

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.

wholeheartedly responding to the demands of ourcustomers under the motto of “the truth is in theworksite” that we have been able to grow as a

Quality

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

1

Yojiro Yoshida

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.

2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
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
General Testing Oﬃce: 5-6-20, Shioe, Amagasaki-city, Hyogo 661-0976

Our Company s Journey

We work with our group company to aid[Company History]

in providing stable electrical power.

1925

Founded in Osaka as the Hasegawa Toshihiko Trading Company

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.

1942

Moves to Higashi Yodogawa, Osaka. Begins development and1971

Relays:Low voltage phase testers, high voltage phase testers,
extra-high voltage phase testers
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]MUFG Bank, Amagasaki Ekimae Branch
Resona Bank, Dojima Branch
Sumitomo Mitsui Bank, Umeda Branch

Hasegawa ElectricCo., Ltd.

1986
1995
1996

Changes trade name to Hasegawa Electric Co., Ltd. (Hasegawa
Denki Kogyo) Kametaro Yoshida becomes President and

OTOWA
GROUP
OTOWA ELECTRIC
CO., LTD.

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.

Begins sale of the “HT-610α low voltage detector”

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

2001

Receives ISO 9001 certiﬁcation

2003

2013

NIP Engineering Co., Ltd.

Issues “The Great Hanshin Earthquake for Our Company”

1999

2011

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.

Osamu Yoshida becomes President and Representative Director

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

2008

OTOWA ELECTRIC CO., LTD.

Begins sale of the “HS-7 audible, light-emitting voltage detector”

1997

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
First appearance at the Korea Expo (actively participates in

2017

Head oﬃce and factory moves to new building

2018

Shibusawa Awards

protection relay”

2015

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
“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 Commissionerʼs Special

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

1999
2000

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 Agencyʼs “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

1988

2001

3

Reorganizes as Hasegawa Electric Co., Ltd. (Hasegawa Denki)

Representative Director
1975[Business Contents]

Phase testers:

manufacture of bus relays and other ground-fault protection
relays as well as voltage detectors

1949

Head Oﬃce:

Voltage detectors: Low voltage detectors, high voltage detectors,
extra-high voltage detectors, DC voltage detectors,
and other auxiliary devices for voltage detection

Imports and sells relays, fuses, and voltage detectors

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

High voltage

Low 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

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

For photovoltaic power generation system (DC)Wind force power generation system

Voltage detector P.17 to 18, 21

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

Hydroelectric power plantMedium voltage
100〜440V

high voltage substation
154kV〜187kV

6.6kV〜36kV

66kV〜77kV

Primary substation

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

Shopping street

Residences

6.6kV〜36kV

Factories
Buildings

275kV〜500kV
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

Nuclear power plant

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

CommonVoltage detector checker
P33

Thermal electric power plant

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
5

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

6

APPLICATIONSAPPLICATIONS

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

HPseries
Medium voltage phase tester
Wireless type

P.38

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

P.31

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

HPL-200
LV phase checker
P.35(Insulated wire clamping 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)7

8

APPLICATIONSAPPLICATIONS

DC railway

AC railway

HST-L series
Medium voltage and high voltage detector

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

P.24

P.57

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.57

P.58

EWL-4
LED working light
Ecopika-kun

9

HST-W80JS
Voltage detector for
AC railway

P.51

10

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
part

Information materials

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick11

Clip(grip)⑤

23

Grounding hook

Light indicator①Product type

②Product name

③Working 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.

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

Index etc.

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

42
42
43
43
43
43
44
44
45
45
45

Voltage detector◇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

Auxiliary device forvoltage detection■Features
1.Highly conveninet
・Voltage detection through covering(sheath)・Sensitivity adjustment

Contact
tip

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

19
19
20
20
21
21
22
22
22
22

Voltage detector
checker■Specifications◇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

Phase tester

RoHS

36
37
38
38
38
38

Grounding hook

Voltage
Contact tip Sensitivity detection
through
Conductive
covering
adjustment (sheath)rubber17
17

35

Discone hook stick

Audio
signaling
and light
emitting◇Low voltage detector [For AC/DC]
HTE-700D／DL
HT-670◇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

Discharge stick④

AC 50〜1000V

15
15

Phase tester

Measuring
instrument③

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

Illuminator②

Low voltage detector

Low Voltage Detector, New model coming !

Railway products

HTE-610W

Product list

Information materials①

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

How to read this catalog

12AC50〜600V

17
AC80〜11,400V
AC60〜7,000V

HSE-7G
HSS-25B1

Telescopic type

HSG-6

Telescopic type

HSN-6A1

19
19

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■ For Medium Voltage to Extra High Voltage
Model

FeatureVoltage
3kV

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

6kV

22kV

66kV

154kV

275kV

500kV

AC3kV〜42kV

Telescopic typeWM-33

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

Pinwheel type
/Telescopic typeWM-154A/B

Pinwheel type
/Telescopic typeWM-275

Pinwheel type
/Telescopic typeAC210kV〜550kV

23

AC60kV〜195.5kV

23

AC6.6kV〜22kV

HVC-750N3
HVC-1.5N3S

AC6.6kV〜33kV

AC11kV〜154kV

24

24
AC33kV〜275kV

24

AC3kV〜25kV
AC6kV〜90kV

25

AC11kV〜33kV

26

Voltage
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

HST-W80JS

20000V* 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
AC6600V

Telescopic type/
Standby display function

Voltage
22kV

66kV

AC20kV〜80.5kV

154kV

275kV

55

56

DC1000〜7000V

6kV

Index etc.

39〜45

Disconnector hook stick46

Discharge 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

56

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

Listedpage* Measurement range is 0 to 999 V

DC600/750/1500V

3kV

Grounding hook25

DC6kV〜90kV

Feature35〜38

24

HS-1.5NJ

Model

Phase tester

24

AC11kV〜77kV

HVC-1.5N3M

HS-1.5NR

33〜34

24

DC3kV〜25kV

FeatureVoltage detector checker

23

AC20kV〜80.5kV■ For Railway (for trolley wire)
Model

28〜32

23

AC3kV〜34.5kV

HWA-33X

Listedpage

23

AC66kV〜138kV

HS-90N

Auxiliary device for voltage detection

23

AC250kV〜550kV
Pinwheel type
/Telescopic type

15〜27

23

AC6kV〜35kV

HS-500
WM-22

Voltage detector

21
21DC600〜7,000V

INDEX

Voltage detector

17

Auxiliary device forvoltage detection

15

General Catalog of
Voltage Detectors

Grounding hook

Grounding hook
Discone hook stick
Measuring
instrument
Illuminator
Railway products

AC50〜1000V

HSF-11

HVC-1.5N3

Information materials

15

DC50〜600V

HST-20N

13

AC50〜1000V

DC12〜750V
Voltage discrimination
function of 100 V•200 V(* When option is used)

Listedpage

Discone hook stick

HT-67020000V

AC50〜600V

HTE-700D/DL

HST-30W

Discharge stick

With LED lighting

11,400V

Discharge stickHTE-610WL

7000V

Measuring
instrument

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

HTE-610W

1000V

Voltage detector
checker

Voltage
600V

0V 50V100V

500kV

Listedpage

57

Illuminator

Feature

11
12
13
14

Railway products

Model

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

Phase tester■ For Low Voltage to Medium Voltage

Information materials

Index etc.

Voltage Detectors as per working voltages

14

For medium &high voltage

HTE-610W

For extra highvoltage

For communication

For railways

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

How to use the LV voltage detector for AC

Low Voltage Detector, New model coming !

■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●Good

Holding only with finger tips

Holding end of the grip

Clip(grip)

23

Sound
emission Test button
partHTE-610WL

Low Voltage Detector, New model coming !

●WrongContact tip

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

Contact tip

Electric line

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.

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

Low voltage detector

Electric line
ShieldAC 50〜1000V
Audio
signaling
and light
emitting

The voltage detector does not work because of the electrical shielding layer which is grounded.

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
130

22■Dimensions: HTE-610WL

LED
Lamp

Light
indicatorSoundemissionpart

Test button

Clip(grip)

24.5

Contacttip

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 withstand■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).
* 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.
■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.)Phase tester●Correct

Discone hook stick

22

130

■How to make contact with the detector

Discharge stick

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

Light indicator

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

Grounding hook

■Specifications

Voltage detector
checker

Auxiliary device forvoltage detection

RoHS

LV

HV

Measuring
instrument

Voltage
Contact tip Sensitivity detection
through
Conductive
adjustment coveringrubber(sheath)●Bad

Illuminator

Audio
signaling
and light
emitting●Bad

Railway products

AC 50〜1000V

Phase tester
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products

For AC & DC

cannot be obtained unless it is held firmly.

Contact
tip

Information materials

For DCLow voltage detector■Dimensions: HTE-610W

15

For AC

Index etc.

For medium voltage

Information materials

For medium &low voltage

Grounding hook

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

16

For railways(For AC, refer to P.16.)■ Key points of DC voltage detection

AC Contact tip only formade ofRoHS
DC Conductive
resin bare wire

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 theModel・Waterproof equivalent to IPX4Working voltage range

HTE-700DAC
DC

Frequency
Operation starting voltage(Voltage to ground)■ Dimensions

22±1
5±0.5

Contacttip

Lightindicator

TestbuttonGrounding terminal

Clip(grip)

Light
Operation
status indication Sound
Operation temperature range
Waterproof
Battery

LED lamp

Battery life
(with new battery)
WeightHT-670free hand not holding the voltage detector.

Electric line

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 light141±2

HTE-700DL−

Grounding terminal

Detection cir

Current limiting
high resistance◯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)

Contact tip

cuit, batteryConductor such as lead wirePhase tester■ Features

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.

Voltage detection of a DC circuit③ 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

Low voltage detector

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.)

AC 50〜600V
DC 50〜600V
Audio
signaling
and light
emitting[Mid-point grounding type]

Without lead wire
E
With lead wire

Sensitivity switch-over by slider switch depending on thedetection (bare conductor/insulated conductor)■ OptionP
Voltage to ground(Target voltage to be detected) E

E

N
‒

N

E
V
2

E
V
2

Voltage to ground is unknown.

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)

28
裸線

Test button

Clip(grip)

Grounding terminal(21.5)

TEST

被覆

200V

100V

137

検電

Light
indicator* Voltage detection is not possible.

■ Specifications
Model
Working voltage range

Without lead wireAC
DC

Frequency■ Dimensions

Contact tip[Ungrounded type]

P

AC
DC

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

Index etc.

For communication

Voltage detector

For AC & DC(*③).

■ Specifications

2±0.5

For DC

Measuring
instrument

Measuring
instrument
Illuminator
Railway products

For AC

to an exposed charged conductor (*①), connecting the earth terminal to the ground (*②) and therefore creating a closed circuit■ Features

Information materials

For extra highvoltage

How to use the LV Voltage Detector for DC※AC only

17

For medium &high voltage

circuit. Therefore, DC voltage detection becomes possible when the DC current flow through the detector by contacting the detector

DC 12〜750V
Waterproof
equivalent to
IPX4

For medium voltage

When carrying out voltage detection with a DC circuit, the current does not flow through the capacitance, unlike the case of an AC

AC 50〜600V

Audio
signaling
and light
emitting

For medium &low voltage

Auxiliary device forvoltage detection

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

For low voltage

Voltage detector
checker

For railways

Grounding hook

For communication

Discone hook stick

For AC & DC

Discharge stick

For DC[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

For AC

Railway products

For extra highvoltage21±1

Index etc.
Voltage detector
Auxiliary device forvoltage detection

Low votage detector

Phase tester

Voltage detector
checker

For medium &high voltage

HTE-700D/DL

Grounding hook
Discone hook stick
Discharge stick

For medium voltage

Information materials

For medium &low voltage

For low voltage

18

19

For medium voltage

For medium &high voltage

HSS-25B1

Standard Model for 11.4kV

AC 80〜11.4kV

AC 80〜25000V■ Accessory■ Features

100

Contact tip

Name plate

Light emission partSound Emission part

Sensitivity selector switch

φ32

(144)

6.5

Grip

Test button

Storage case

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

Working voltage range

815±30
(627)

91

97

Insulation rod

Detecting head

Nameplate portion

For checking to seethat internal electronic
circuit is in order

Contact Tip

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

1675

215±10(27)
97

Indicator light

AC 60〜7000V

AC 80〜7000V■ Option

Audio
signaling
and light
emitting

Grip

Donʼt touch any portion
other than this during
HV detection

Sounding hole

Voltage detector for Medium/Low voltage■ Accessory

Grip

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

Test switch

Voltage detector for Medium/Low voltage

Contact tip Contact tip Telescopic
Waterproof
Conductive
Replaceable typerubber■ Option■ Features• Working voltage range from AC 60V as per Telecom standard in Japan
Successor of HSC-7G (certified product as per NTT spec.)• 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.

■ Dimensions■ Specifications
100

Contact tip

Test button
Display window

Grip

Clip (detachable type)
Sound generation part

Working voltage range
Operation starting Low voltage
voltageHigh voltage(Voltage to ground) Insulated wire
Frequency
Dielectric strength
Leakage current
Battery
Battery life
Operating temperature range
WeightAC60V〜7000Ｖ
Exposed live part 60 V (in contact with live part)
Exposed live part 400 V (in contact with live part)(φ5mm OE wire) 3,000 V
50/60Hz
20 kV for 1 min between contact tip and grip
0.5 mA or less at dielectric strength test
LR44(1.5V) × 2 pcs
3 hr. in continuously operating state; about 2 years in unused state−10℃〜＋40℃
About 55 g

■ Dimensions

Sound emission part

Test button
90

Light indicator

200±5

800±40

φ23.6

Contact tip for replacement (UH05004)
Storage case

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■ Features

205

For railways■ Features

HSG-6

Contact tip Contact tip
Waterproof
Conductive
ReplaceablerubberFor communication■Detecting at low voltage■ Accessory

HSE-7G For communication Recommended for Telecom workers on the pole

Audio
signaling
and light
emitting

For AC & DC

Discharge stick260
16

Waterproof

φ33■ Dimensions

Telescopic
type

34
4

• 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.

Audio
signaling
and light
emitting

For DC

Voltage detector

Voltage detector for Medium/Low voltage

Waterproof

For AC

Telescopic type, Standard model for Medium Voltage

Voltage Detector for Medium/Low voltage

Audio
signaling
and light
emitting

For extra highvoltage

Index etc.

For medium &low voltage

For low voltage

Auxiliary device forvoltage detection

For railways

Voltage detector
checker

For communication

Phase tester

For AC & DC

Grounding hook

For DC

Discone hook stick

For AC

Measuring
instrument

HSF-11For extra highvoltage

Storage case (DA04003)

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

Illuminator

For medium &high voltage

Railway products

For medium voltage

Information materials

For medium &low voltage

φ21

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.

For low voltage

20

For extra highvoltage

For ACFor DCFor AC & DC

For communication

For railways

Recommended for Withstand Voltage Test

grounding clip
grounding wire (3 m)

278 ± 10 (when shortened)

PUSH（Discon.G.Wire）

grounding terminal

Telescopic
type

Voltage detector

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

Waterproof

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■ Dimensions

TEST

Voltage detector
checker

50°in all directions

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

grounding wire
(3 m)

■ Accessory

Variable up to
50°in all directions

TEST

Variable up to
50°in all directions

695

Discone hook stick
1,295

717

1,290

1,325

HST-30TESTTESTHST-70

HST-170

HST-250

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

Measuring
instrument

AC WaterproofDC■ Operating rod can be changed to a longer one. (* Changing to a shorter one is not possible from the viewpoint of safety.)■ Accessory

415±5
TEST

■ Specifications

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
Weight

600V〜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)

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

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
Weight

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

About 340 g

HST-70
20kV〜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

grounding wire
(7 m)

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

Information materials

Model

Bag for housing

Standard product

Illuminator

Model after changing the operating rod■ Dimensions

135

Discharge stick(3,145)(2,260)312

AC 600〜7000V
DC 600〜7000V

TEST

512

TEST

846

(1,382)

TEST

Medium voltage detector

Illuminator
Railway products

For railways

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

• With 7-m grounding wire

Information materials

For communication■ Features

Robust and Lightweight, FRP for Insulating Stick■ Features

21

For AC & DC

TEST

HST-1.5N

Audio
signaling
and light
emitting

For DC

Grounding hook

φ26

TEST

DC

100

Insulating stickAC

52
Light indicator for AC(red color)

For AC■Detecting at low voltage

Storage case

■ Specifications
Grip

groundingplug
Name plateSound emission part

Light indicator for DC(orange color)

For extra highvoltage

Auxiliary device forvoltage detection

Audio
signaling
and light
emitting

Test button
810 ± 40 (when extended)

HST-30
HST-70
HST-170
HST-250■ Accessory■ 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.)

Contact tip

HST series
AC

AC WaterproofDC■ Dimensions

For medium &high voltage

For medium voltage

Medium voltage & High voltage detector

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)
Telescopictype

For medium &low voltage

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

Voltage detector for Medium/Low voltage

Audio
signaling
and light
emitting

For low voltage

Index etc.

For medium &high voltage

HSN-6A1

30

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

For medium voltage(5,055)For medium &low voltage

For low voltage

22For DCFor AC & DC

For communication

For railways

For low voltage

For medium &low voltage

For medium voltage

For medium &high voltage

HST-30W

HST-L series

Audio signaling andlight emitting type voltage detector

Medium voltage & High voltage detector

For AC & DC

For communication

For railways

Long length for Feeder■ Dimensions■ Accessory

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

TEST

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

Telescopic
type

3kV〜34.5kV
20kV〜80.5kV
20kV〜80.5kV

Auxiliary device forvoltage detection

Audio
signaling
and light
emitting

Waterproof

Voltage detector

AC HST-30L

HST-70L
HST-W80L■ Features

For DC■ 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.
LR44(1.5V) x 2 pcs
About 340 g

Phase tester
846(1,382)Grounding hook

Battery
WeightDiscone hook stick

Waterproof

TEST

312

Operation status display

AC 500 ± 100 V (bare wire)Contact tip

HWB series
Non-contact voltage detector
AC HWB-35

HWB-138
HWB-550

6kV〜 35kV
66kV〜138kV
210kV〜550kV

80L

Extended state■ Dimensions
8,900±200

Audio
signaling
and light
emitting■ Dimensions

Waterproof

Stopper

339

Hand Guard

Detecting Part

139

Insulating stick■ Features

Pad

Grip

1350±50

75

Measuring
instrument

TEST

Extendedstate

shortened
state

Information materials

Railway products■ Specifications

23

φ55

■ Accessory
92

IlluminatorTEST• FRP is used for the insulating stick. It is of light-weightand has outstanding operability.
• Universal joint type

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)

Bag for housing（DA14006）■ Specifications
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
WeightDischarge stick

Telescopictype

For AC

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

AC 3kV〜42kV
Audio
signaling
and light
emitting

For extra
high voltage

Index etc.

For AC

Measuring
instrument

For extra highvoltage50/60Hzon 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

Illuminator

For medium &high voltage

For medium voltage

Railway products

For medium &low voltage

Information materials

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

24Voltage Detector for 500 kV Transmission Lines

For low voltage

For medium &low voltage

For medium voltage

HST-20N

AC 250k〜550kV

AC 3k〜25kV
DC 3k〜25kV
Audio
signaling
and light
emitting

Waterproof

Bag for housing■ Dimensions■ Dimensions

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

Audio
signaling
and light
emitting

Battery-less■ Features

Wide Range type for both AC and DC

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

■ Accessory• It operates over wide range from medium voltages to high voltages
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

grounding wire
(7 m)

Bag for housing■ Dimensions■ Specifications

1590
400
TEST

■ Specifications

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)

AC 6k〜90kV
DC 6k〜90kV

AC 6.6k〜500kV
Waterproof

Grip

1000V±20%

Medium voltage andHigh voltage detector

Pinwheel type voltage detector

Telescopic
type

Insulating stick

HS-90N

Voltage Detection Check
with Rotation of Pinwheel.

250

φ21

20 kVAC ± 20% (in contact with exposed live part)grounding terminal

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

3kV〜25kV

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

AC250kV〜550kV

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

TEST

Working voltage range
Operation starting voltage(Voltage to ground)
Dielectric strength
Leakage current
Battery
Operating temperature range
WeightGrounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products

grounding wire
(7 m)

Measuring
instrument

Phase tester■ Specifications

WM series

For railways■ Specifications
940

2445

For communication■ Accessory

Bag for housing

1050

Information materials

For AC & DC

• New model with reduced weight of HS-20N• 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.

7085

25

For DCACDC■ Features■ Accessory■ Features

Waterproof

For AC

Voltage detector

Medium voltage detector

Telescopictype

For extra highvoltage

Voltage Detector of Dual Use for AC/DC

Extra high voltage detector

Audio
signaling
and light
emitting

For medium &high voltage

Index etc.

For railways

Auxiliary device forvoltage detection

For communication

Voltage detector
checker

For AC & DC

Phase tester

For DC

Grounding hook

For AC

Discone hook stick

HS-500For extra
high voltage

Contact tip (Metal ﬁtting)Grounding terminal

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)

Illuminator

For medium &high voltage

For medium voltage

Railway products

For medium &low voltage

Information materials

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

26

For railways

Voltage detector

Portable live part detector

Determine whether
the Substation Facilities are charged

Index etc.

HXG-1
AC 3.3kV 〜 77kV

Waterproof

Auxiliaryfor
Waterproof device
voltagedetection■ Accessory

IEC61243-1■ Features【Attention】

Customizable tips:
Tip fittings can be changed to hook type,straight type,Y-shaped type,etc

This device is not a voltage detector.

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.

Auxiliary device forvoltage detection

Audio
signaling
and light
emitting

Voltage detector
checker

Audio
signaling
and light
emitting

For communication

Storage case■Specifications
Working voltage range
Operating temperature range
Frequency
Battery
Dielectric strength

Customizable tips

Universal joint:
Universal joint type for easy connection to shared control rods.
■Voltage & distance to be separated, and detectable distance■ Dimensions

Voltage（kV）
Detectable distance（m）

191 mm × 79 mm × φ64 mm*Length of the Y-shaped contact tip (metal fitting): 27 mm

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.

Muiti-functional display

Red LED (1)

HXC-3KRed LED (3)Green LED
BuzzerUniversal joint

Portable live part detector

Determine whether the Substation Facilities arechargedDischarge stick

Red LED (2)Test button■ Specifications
Applicable voltage
Frequency
Climate category
Waterproofness

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 caseAC 3.3kV〜77kV
Audio
signaling
and light
emitting

Measuring
instrument

Position indication markPhase tester

AC 11kV〜33kV

Discharge stick
Measuring
instrument

For AC & DC

Grounding hook

High voltage detectorr

Illuminator
Railway products
Information materials

For DC

IEC61243-1 standard voltage detectors are
finally here !

Universal joint

27

For AC

Discone hook stick

HWA-33X

For extra
high voltage

Auxiliaryfor
Waterproof device
voltagedetection【Attention】
This device is not a voltage detector.

■Features• Compact size and lightweight make it convenient to carry■Specifications
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

Illuminator

For medium &high voltage

Railway products

For medium voltage

Information materials

For medium &low voltage

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

For low voltage

28

A

5.00

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)B
HXW-6W■Operation Voltage Distance Table(Theoretical value)
Normal Voltage
0.4kV
1kV
6.6kV
11kV
22kV

structurewith connected
groundHot line proximity detector

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

Exclusively for cubicle works（Both 50Hz and 60Hz）■What is a Hot line proximity detector?

Discharge stick

WRIST ALARM• 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.

AC 1kV to 42kV

RoHS

Auxiliaryfor
Waterproof device
voltagedetection

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.

■Operation Voltage Distance graph (Theoretical value)■Specifications
Model
Working 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• 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.

Measuring
instrument■Precautions before purchasing the Hot line proximity detector

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

Illuminator
Railway products

22kV-1.9m(12.7kV)

1.00

Nominal Voltage(Voltage to Ground)(kV)●Image of operating distance

Information materials

6.6kV-1.0m(3.8kV)

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
Weight• The specification “○V‒○cm” of this product is a distance under the “standard condition” set in the factory.

29

Auxiliary device forvoltage detection■Operation Voltage Distance graph (Theoretical value)

Auxiliarydevice forvoltagedetection

Phase tester

RoHS Waterproof

Grounding hook

PBele
eePp
eBel
ePee
pe

0

Index etc.
Voltage detector

AC 400V to 22kV

Discone hook stick

Voltage detector
checker

Ra

t
or

:Sh

e
ng

Phase tester
Grounding hookePeepe
PpeBel
e
e
e
l
e
B
P

■Specifications

Discone hook stick
Discharge stick

WRIST ALARM

Hot Line:＊＊kv
Cubicle(Door:Open)C

Measuring
instrument

Applicable from low voltage
to high voltage■Operation Voltage Distance Table(Theoretical value)
Normal Voltage
6.6kV
11kV
22kV
33kV

Operation Distance
0.6m
0.8m
1.1m
1.3m

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

HXA-6

PBel
eee
Ppe
Bel
ePe
pe

HXW-6WL

Operation Distance(m)Index etc.

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

Auxiliary device forvoltage detection

Voltage detector

Hot lineproximity
detector

30

Phase tester

HXA-6

e

Active area

Inactive area
0.6

Hot line proximity detector exclusively
for overhead line works【Attention】

This is not suitable for cubicle works.

for
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-6S (Helmet fitting type)Operating temperature range

2.2

2.6

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

AC 77kV【Attention】
This is not suitablefor cubicle works.

■Specifications
Model

AuxiliaryStandard operation start distance

RoHS

for
Waterproof device
voltagedetection

HXA-70 (Upper arm fitting type)−10℃〜＋40℃

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

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.

Hot line proximity detector exclusively
for overhead line works

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

HXA-70S (Helmet fitting type)66kV-1.5m、77kV-1.6m、110kV-1.9m

Illuminator

HXA-6 (Upper arm fitting type)

1.4
1.8
HXA-30

HXA-70
HXA-70S■Specifications

AC 11kV

1.0

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

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)

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)

(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.

■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
Voltage detector
checker

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

c

HXA-6
HXA-6S■Operation Voltage Distance Table(Theoretical value)■Operation Voltage Distance graph (Theoretical value)

Phase tester

33kV1.7m

Grounding hook

1.4m、

a
b

Grounding hook
Discone hook stick
Discharge stick

11kV1.0m、22kV-

Discone hook stick

an

ep

p Ble

Blee

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)

Discharge stick0

HXA-30S (Helmet fitting type)

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

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

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

Illuminator

Voltage detector
checker:L
geThis is not suitablefor cubicle works.

Railway products

HXA-30 (Upper arm fitting type)

on

R

RoHS

detection

11kV-0.7m、22kV-0.9m、33kV-1.2m

Measuring
instrument

Model

Auxiliary

pe
ePe
Bel
Ppe
eee
PBel

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

【Attention】■Specificationsfor
Waterproof device
voltage

pe
ePe
Bel
Ppe
eee
PBel

HXW-6W

ep

p Ble

Blee

Hot Line:＊＊kv

Auxiliary

Information materials

Hot line proximity detector exclusively
for overhead line works

AC 33kVd31

HXA-30
HXA-30S

Information materials

Index etc.

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

Standard operation start distance

Auxiliary device forvoltage detection

Voltage detector

Hot lineproximity
detector

32

Handy Type with
Built-in Battery

Voltage detector
checker

Auxiliary device forvoltage detection■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

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

HLA-N2Dimensions
Weight

80mm×150mm×50mm
700g

HLA-3

Handy Type with
Built-in Battery

Voltage detector
checker

Measuring
instrument

DC voltage detector
checker

Handy Type with
Built-in Battery

Battery

Discharge stick

Battery

H 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.

Voltage detector
checker■Specifications

Phase tester• Ideal for checking voltage detectors for communication use

Grounding hook

■Features• Easy to use at the site
• Checking low/high voltage is possible.
• Compact size and lightweight make it convenient to carry

Discone hook stick

Auxiliary device forvoltage detection
Voltage detector
checker
Phase tester
Grounding hook
Discone hook stick■Features

Measuring
instrument

Discharge stickIndex etc.

HLA-2G

Voltage detector

Voltage detector
checker

Handy Type with
Built-in Battery

Voltage detector

Index etc.

HLA-1A■Specifications
Output voltage
Load resistance
Short-circuit current
Operating temperature range
Battery
Dimensions
Weight33

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

Railway products• Exclusive use for DC high voltage detector(Optimum for HS-1.5NR & HS-1.5NJ voltage detectors)

Information materials■Features

Railway products■Features

Information materials

Illuminator

撮影中

34

R(A)
T(C)

TEST

N.P.
TEST

N.P.

※Using two of the R, S
and T clips

Ｓ

Ｒ

逆相

TEST

N.P.
N.P.

Contact tip (Metal fitting)Transmissionside(P2)

Insulating stickIndex etc.
Voltage detector

Joint for
optical cable

Optical cable

Different phase: LED Lighting

正相

ON
OFF

TEST

Receptionside(P1)

Transmissionside(P2)■Accessory
Storage caseC

In-phase: LED Flashing

Ｔ

Power

Phase
Checker

B

Discone hook stick

Electric line
WeightReceptionside(P1)

Load
side

A

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.”

Model:
HPL-200

φ3 200V/400V
50/60Hz

ＨＡＳＥＧＡＷＡMADE IN JAPAN■Dimensions

Bag for housing
HPI-S6/S20

HPI-A6■Indications

Clip

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

HPI-A6

If ground phase or open-phaseDiﬀerent phase
In-phase
R (Yellow), S (Yellow), T (Yellow)
Lighting
Flashing※Display of two clips used, light off when unused

Phase rotation
indication

Ｒ

Ｓ

逆相
Phase
Checker

Ｓ

Ｔ
正相

ON
OFF

Model:
HPL-200
3φ 200V/400V
50/60Hz

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

ON
OFF

Model:
HPL-200
3φ 200V/400V
50/60Hz

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

Ｒ

Ｓ

Ｔ
正相

Power

ON
OFF

Model:
HPL-200
3φ 200V/400V
50/60Hz

ＨＡＳＥＧＡＷＡMADE IN JAPAN

565
1980 (extended state)

正相Model:
HPL-200ON
φ3 200V/400V
50/60HzOFF

R and T only
are lighting
No indicationof Positive/Reversed

Ｒ

Ｓ

逆相

Ｔ
正相

Power

ON
OFF

Model:
HPL-200
3φ 200V/400V
50/60Hz

ＨＡＳＥＧＡＷＡMADE IN JAPAN■Option■Specifications

25.5±2 Battery Screw
cover

72±2

Ｃ）3-phase 4-line system (400V)

逆相

318

Ｔ

Power

■Example indications

Power698〜738600〜640

Magnet

MADE IN JAPANＲ

1200 (shortened state)

Attached insulating stick

Charge indicationfor each phase

ＨＡＳＥＧＡＷＡ

逆相

HPI-S6/S20
129

318

Lead length
about 800 mm

Power indicationａ）3-phase 3-line system (200 V)

HPI-A6
HPI-S6/S20

Measuring
instrument

Phase rotation LED Flashing/Color
indication Buzzer sound

＊2

×2pcs
HPI-A6
HPI-S6/S20■Dimensions

φ35

If voltage to ground is 80 V or lower

Barrier×2pcs
HPI-A6

φ35

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

N.P.

LED color
Chargeindication LED indication

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

R, S and T
are all lighting
Positive/Reversed
rotaion indication

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

HPI-A6
3kV〜7kVFor cubicles

Optical fiber cable

10m（DF01066-1）
20m（DF01066-2）
30m（DF01066-3）

Illuminator

BatteryPowersupplyside

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.”

Railway products

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)

TEST

Measuring
instrument
Illuminator• In-phase/different phase, and phase sequence are indicated by sound and light indications.

■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）
Applicable circuits
Working voltage range
Dielectric resistanceDielectric strength
Leakage current
Power supply display
Sound volume

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.

S(B)■Specifications

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

Voltage detector
checker・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

Phase tester■Features

Power switch
Railway products

HPI-A6■Features＊1

Information materials

AC 3kV〜7kV
AC 6.6kV
AC 22kV〜34.5kV

HPI-A6
HPI-S6
HPI-S20

Grounding hook

AC 80〜600V（Three-Phase）

Medium voltage phase tester,
Optical fiber type

Discharge stick＊As of June 2015, own company investigation

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

Information materials

Low voltage phase checker
Insulated wire clamping type

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

78±2

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

HPL-200＊Use extended with a joint is not possible.

3536Model HP-S: Straight type

■Accessory
Model HP-T: Bag for housing
Model HP-S: Bag for housing
Model HP-U: Trunk case■Specifications■Accessory
Contact tip (Metal fitting)

Bag for housing

Hook type×2 pcs

Joint for
optical cable

Optical cable

Flat plate type×2 pcs

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
Weight×2pcs

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

Detector: Contact tip ‒ Joint part
Contact tip ‒ Grip

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

φ351200 (shortened state)

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

318

565

Wireless Voltage Detector/Phase Testerwith Phase Sequence

1980 (extended state)

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 piece■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.
Measuring
instrument

AC 20kV〜42kV■Specifications

Voltage detector
Discharge stick

HP-22VR

Auxiliary device forvoltage detection

There is no phase sequence (phase rotation)
checking function.
(Only indicating in-phase, different phase)
Please designate frequency of 50 Hz or 60 Hz.

Voltage detector
checker・FRP is used for the insulating stick. It is lightweight
and outstanding in operability.
・Working voltage is wider than HPI-S20.

Phase tester［Attention］

Grounding hook

■Features

Discone hook stick

Model HP-U: Complete typeBag for housing

Illuminator

AC 3.3kV〜33kVAwarded 40th
Shibusawa Prize

Railway products

AC 22〜42kV

Easy-to-use with Wireless pairInformation materials

Index etc.
Voltage detector
Auxiliary device forvoltage detection
Grounding hook
Discone hook stick

HPseries

Medium voltage phase tester
Wireless type

Discharge stick
Measuring
instrument
Illuminator
Railway products
Information materials

37

Detector pairs insulated with optical fiber

Medium voltage phase tester,
Optical fiber type

Phase tester

Voltage detector
checker

HPI-S20W

38

MA121-AG
Strong large size

［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.

MA121-C

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.

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）

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)

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

Cubicle type

MA115-AG

12

0°

42

M12 screw

120°

E

F

G

70

A

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

Strong cubicle type

MA115-AN
Cubicle type for narrow
spaces＊The photo shows SA107-C.
Model
SA107-B
SA107-C
SA107-D
SA110

Index etc.
Voltage detector

80

B

C

1920g

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

MA115-A

Valve type grounding handle (SA110)

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

L＝195
L＝195
L＝225
L＝225

For round bus bar

Medium size

■Type of grounding wire (transparent vinyl covered electric wire)

1200g

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

Weight
280g
570g
1080g
320g

MA115-AH
Cubicle type with claw

Railway products

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

D screw

Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator

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

For round bus bar

930g

Universal typeFigures inside ( ) indicate outside diameter of the rod.

800g

φ8 to 40

Slanted large size

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

φ30 to 80

Auxiliary device forvoltage detection

Special large size

For round bus bar

Voltage detector
checker

MA121-AS

710g

Phase tester

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

φ8 to 40

Grounding hook

Large size

Remarks

Dimensions

Discone hook stick

MA121-A■When ordering, please determine the followings.

WeightRange of use (mm)Discharge stick

Model name

Measuring
instrument

External appearance

Railway products
Information materials●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.

■Fixed type tip metal fitting (The operating rod and tip metal fitting are fixed.)

MA111-A

39

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

Illuminator

Table 1

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

Information materials

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

Grounding hookcomponent

A wide variety of lineup according
to the application〜

Phase tester

Groundinghook

40Grounding wire

MA121-BS
Special large size

MA121-BG
Strong large size

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

φ30 to 80

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

860g

L＝200
L＝200
L＝200
L＝230

φ8 to 40

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

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

1250g
1950g

980g

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

For round bus bar

Large ﬁxed type
MA121-A（MA121-C）

For dual use of round and ﬂat bus bars

For dual use of round and ﬂat bus bars
（Earth wire: 60 mm2 or more）
Medium-sized ﬁxed typeMA122-Aφ8 to 40
Thickness of bus bar within 12
Width within 75

930g

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

Model of tip metal ﬁtting B

Universal ﬁxed type
MA111-A（MA111-C）
1680g

Grounding metal ﬁtting

For round bus bar

A
930g

Fixed type for cubicle
MA115-AFor dual use of round and ﬂat bus bars

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

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

Detachable type
（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

MA105
Tip metal ﬁtting for
operating rod

MA105-S
Tip metal ﬁtting for
operating rod

Tip metal ﬁtting

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）〃〃

Index etc.
Voltage detector
Auxiliary device forvoltage detection

Tip metal ﬁtting

Voltage detector
checker

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

Phase tester

760g（The bag for housing is sold separately.）

Grounding hook

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

Discharge stick

Phase tester
Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products

φ8 to 40

Weight●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.

Discone hook stick

Large size

Dimensions

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

4.0m（2＋2）〃

Grounding wire

Groundingmetal ﬁtting

Applicable voltage

22mm2×3m

SA107C

6.6kV〃
22mm2×4m〃
22mm2×5m

〃
〃
〃
〃

〃
22kV
〃
77kV

〃
22mm2×6m

〃
〃
〃

〃
〃
154kV

〃

Measuring
instrument

MA121-B

Range of use (mm)●When ordering the earth hook, please determine the following.

Illuminator

Model nameFixed type

Railway products

External appearance

Cubicle type

Information materials●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

41

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

Information materials

Index etc.
Voltage detector
Auxiliary device forvoltage detection

Table 2

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

〜

Voltage detector
checker

Grounding hookcomponent

42

φ39

φ25

φ32

1400

1300(700)

1300(800)

275kV
154kV
77kV

Grounding wire

■FeaturesLength at
extended state

At storage

No. ofconnections

Bag forhousing

Weight ofcontents & bag

4.0m
2.6m
1.5m

1.8m
1.5m
1.1m

3
2
2

Capacity of
1 phase portion
Capacity of
3-phase portion

15.5kg11.0kg8.8kg

MA121-A 22mm2×5m
22mm2×4m〃〃
22mm2×3m

15

φ5〜20

■Specifications

ZB2
ZB3

154kV
77kV

Length ofinsulating stick

Grounding wire

Groundingmetal ﬁtting

1300(800)

H

Insulation
rubber clipWithrubber grip

22mm2×1.2m×3 wires
8mm2×5 m×1 wire

Clip

φ32

φ25

Max27

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

None

Portable type
300×360×110

3.5kg

700(500)

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□

Type HA

Improved model from type H.

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

Hammer-in typeBag for housing Weightgrounding bar

Grounding hook

Applicable
voltage

Tip metal ﬁtting

2615(1515)

φ15〜φ40

Type

Type

With Bag for housing

Discone hook stick

Phase tester

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

When you pull the rope, clip is opened.

2550(1550)
1245(745)

1305(805)
195

Check the QR codefor details.

φ8〜φ15Push-button switch

φ34

Safety indication
φ25Type YBag for housing

2
3）
ZB（ZB

φ8〜φ15

Operating rod of button type telescopic model

・The clip is L-shaped・Itʼs easily install and hard to detach.
・Soft and clear coated grounding wire.

■Dimensions（Closed stock）＝(Detachable tip metal ﬁtting + Grounding wire + Grounding metal ﬁtting) × 3 +(Operating rod) × 1 + (Bag for housing) × 1

132

Grounding hook〃

Auxiliary device forvoltage detection

Z1
Z2
Z3

Tip metal
ﬁttingDischarge stickType ZB

Applicable
voltage80

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

Type

Index etc.

With Bag for housing■Grounding metal fitting SA107-C Insulating stick: Epoxy pipe

Tightening range

Discone hook stick■Accessory

2600(1500)

195

Discharge stick

Universal type for cubicle

1300
4000

Standard model for Cubicle andhigh voltage receiving equipment.

Voltage detector

L

φ32

1300

Auxiliary device forvoltage detection
Voltage detector
checker（Z3）

L

Type HWhen you push the rope, clip is closed.

700(500)

Voltage detector
checker

Z2

Phase tester

Z1

φ25

Type 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

φ15〜φ40
Tightening range

43

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

11.5kg9.0kg〃

Line-side clip

Grounding-side clip

■Accessory
Illuminator

Grounding wire

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

YB（YB
2
3）

Bag for housing

2465(1465)

195
95

Length of 22mm2 cable : 1,200±501245(745)2017
φ8〜φ15
φ15〜φ40

Max27

Push-button switch

700(500)

Tightening range

Length of 8mm2 cable : 5,000±100■Specifications■Grounding metal fitting SA107-C Insulating stick: Neo pipe
Type
YB2
YB3

Applicable
voltage

154kV
77kV

Tip metal
ﬁttingGrounding wire

MA121-B 22mm2×4m
22mm2×3m〃

Length at
extended state

2.4m
1.4m

Railway productsType YB

154kV
77kV

Tip metal
ﬁtting

φ25

Operating rod of button type telescopic model

Applicable
voltage

At storage

No. ofconnections

Bag forhousing

Weight ofcontents & bag

1.4m
0.9m

2
2

Capacity of
3-phase portion

9.6kg
8.1kg

〃

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

Type
Y2
Y3

Measuring
instrument■Dimensions■Grounding metal fitting SA107-C Insulating stick: Neo pipe

φ34

Information materials

Railway products

Illuminator

Measuring
instrument

Max27

44

Universal type for
cubicleUniversal type for
cubicleDiscone hook stick with
voltage detector

For 6.6 kV (narrow space type)with carrying caseFor 6.6 to 22 kV
with carrying case
■Dimensions■Specifications

φ25

150

65

Hammer-in typegrounding bar

135

Max18

700

600

300

φ25

135

Phase tester

120＊Without the casing〈Type A〉

Hook Stick for D/S(Disconnecting Switch)

For round bus bar〈Type B〉

AC 10kV〜110kV

L■Features■Dimensions
φ5〜30

Chain

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

■Accessory

Discone hook stickℓo〈Type C〉

Lℓo

Water drip shed

Discharge stick

For 6.6 to 22 kV
with carrying case

140

■Specifications

360

650

Model
（SA109）65

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

Hammer-in typegrounding bar

135

Max18
120

Bag for housing

Illuminator

Indoor■Specifications

A-1
B-1
C-1
10kV
1.0m
1.0m
̶
̶
0.3m

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-BType

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

D□

3.4kg

Hook stick for D/S in Cubicle

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

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.

AC 6.6kV〜30kV

A-3
B-3
C-3
40kV
3.0m
3.0m
̶
̶
0.7m

A2-4
B2-4
C2-4

A2-6
B2-6
C2-6

A2-5
B2-5
C2-5

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
̶
̶
3.0m
2.0m
2.5m
2.0m
3.0m
̶
̶
2.0m＋2.0m
1.0m
0.7m
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

128

70

Chain

600
φ25

S

Grounding hookLℓo

Railway products

Grounding hook

SA109□-□

Type S

Discone hook stick
Measuring
instrument−10℃〜＋40℃
Waterproof (Water shall not ingress.)
200kg, 1 min
6R61 or 6F22(9V) × 1 pcs
About 470mm
About 390g

Bag for housing

120

Railway products

Operating temperature range
Structure
Tensile performance
Battery
Dimensions
Weight600

Discharge stick120

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

L
ℓo
φ25

Voltage detector
checker360

φ10Phase tester

70

35

50

130

130

35

50

φ10

Information materials

Index etc.

• Work safety and efficiency are improved by combining the voltage-detecting function to the medium voltage cutout operating rod.
140

Bag for housing

45

Voltage detector■Features■Accessory

Auxiliary device forvoltage detection■Accessory

AC 6.6kV■Specifications
Class
Len gt h ( L)
Length of grip (ℓo)
Applicable voltage

Measuring
instrument■Dimensions

Enhance Work Safety and Efficiency

Voltage detector
checker

HSH-K6

D4
2.0m
0.5m
30kV

Information materials

Index etc.
Voltage detector
Auxiliary device forvoltage detection

Type F
600

Type C46

■Dimensions
640±10

接触しないよう150±5

Crocodile-mouth clip

接触しない

接地端子・接

!

!

感電

残留電
（活線

Grounding wire (3 m)

φ21±0.5

Phase tester

地端子・接地線は

警告

中は､握り
絶対に
の恐れあり

放 電 棒
放

型
放電電

Hand guard

Grip

Hook metal fitting

Straight metal fitting

Hook metal fitting

Discone hook stick

Grounding hook

■Accessory(100)

Grounding terminal

Insulating stick

Straight metal fitting

Discone hook stick■Specifications

Bag for housing (DA16003)■Dimensions
740

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.

Bag for housing (DA16003)

58

Order-made

接触しないよう

警告

荷放電
使用禁

地端子・接地線は

中は､握り
絶対に
の恐れあり

JAPAN

HRD-27S
DC27kV
1.0uF
2016.12
造

式

放電電圧

製

放電容量

φ4

型

TEST

Detector
電圧検出機能付き放電棒

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

Phase tester

Contac tip(metal ﬁtting)Grounding terminal

Contact tip (metal ﬁtting)Light indicator
Sound emission part

Test button

150

(100)

Crocodile-mouth clip

φ21

接触しない

!

!

感電

放電

接地端子・接Insulating stick

Hand guard

Grip・This product is custom built according to the following
selected speciﬁcations ((1) to (4))(1)Length of insulation stick
□0.5m

□1.0m

□1.5m

□2.0m

(2)Cross-sectional area of grounding wire
□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

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.

③

残留電
（活線

！

AC 6.6kV■Specifications
Discharge voltage
Discharge capacity
Discharge time
Discharge resistanceOperation stop voltage
Indication (Light/sound)Battery
Battery life
Operating temperature range
WeightAccessories

・No built-in resistance*Select from the following specifications②

Illuminator

本器は検電器ではありません。

residual electriccharge discharging stick

Simple Discharge stickwith no built-in Internal Resistance①

Measuring
instrument

DB■Accessory

荷放電
使用禁

(66)
φ4

Grounding hook

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.

Discharge stick・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)

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)■Features

Battery cover

Railway products

Auxiliary device forvoltage detection■Features

Measuring
instrument

Emits
sound
and light

Grounding wire (3m)Information materials

Index etc.

DC 27kV(Maximum discharge voltage)

Illuminator

DC 27kV (Maximum discharge voltage)

Voltage detector

・Built-in resistance■Detector

47

Residual electriccharge discharging stick

Built-in resistance type

Railway products

・Voltage detection functions
・Built-in resistance

HRD-27

Information materials

Residual electriccharge discharging stick

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

製
ＨＡＳ

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

HRD-27S

48

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

Two phase＊Refer to the following
Rating table.

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-○mStandard 10 m
20, 30, 40, 50, or 60 m to be designated■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
Output
0〜1ｍA．DC
Meter
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＊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.

Outdoors

Indoor

HG7-SM1A

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;■Rating table

Operation power

Type

Q’ty
m

set

HG7-CT$-mset＊As for H, use high sensitivity (H) of the type SM.
＊As for ST, use standard sensitivity of type SM or type DM.

Shield CableType
CVV-SBType
DVF-11M

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

area

Conductor’inner core
1c

Index etc.
Voltage detector
Auxiliary device forvoltage detection
Phase tester

English name plate □Convertor inaide□

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

Conductor’section
3.5mm2(Standard)
5Y7/1(Glossy) □(Non standard)
7.5BG6/1.5(Glossy) □N7(Glossy) □Others □□Lenghts of shield cable

HG7-DD-

Wide range AC Voltmeter

Special specification

Color(Standard)5Y7/1(Glossy) □(Non standard) N7(Glossy) □7.5BG6/1. 5 (Semi Glossy)
Others; □Inside 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)
−

Color

Others: □Grounding hook

Earth wire

Q’ty

Discone hook stickSingleController
Sensitivity

Type

Discharge stick

Detector

Voltage detector
checker

Outdoor □Indoor □In board □Internal GIS sensor equipped □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
Controller;

Voltage Meter

Detector insalltion place:※Check instruction manual P.12 (Notice for Interval Distance Table), and please select the sensitivity of the controller.

No.

Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products

Tel/Fax:
Installation place name & address:

Normal line voltage
kV

Protector
・HG7-P1B(for single phase)
・HG7-P2B(for two-phase)

3.5 mm2 shielded wire
(sold separately)

Information materials

Tel/Fax:
The person in charge(Name & Sec.)
Tel/Fax:■Features• Economical as it can be simply installed without using PT, PD.
• Easy installation and maintenance.

3.5 mm2 shielded wire (sold separately)

49

Delivery date:
Delivery place:Special specification
English name plate □Others; □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.

Measuring
instrument

Image figure* This apparatus is produced and sold byour company, having inherited inheriting
technologies of former Million Electric
Mfg. Co. Ltd.

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

Illuminator

AC 3.3kV〜550kV

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:

Railway products

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.

Information materials

VOLTECT

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Voltage detector

Index etc.

VOLTECT SPECIFICATION TABLE

50

Auxiliary device forvoltage detection

RoHS■Features• The working light has 2 modes; lighting mode and flickering mode.

• 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.

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

Grounding hook
Discone hook stick
Discharge stick

EWL-2B
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

Measuring
instrument

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

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.
Illuminator

Battery unit

Railway products■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.)

Railway products

Phase tester
Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products
Information materials

Voltage detector
checker• The spotlight enables visual recognition at a distance of 10 m.

Phase tester

Impact Chemical
Waterproof Rechargeabletype Magnet
resistance resistance■Specifications

51

Index etc.

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

Voltage detector

LED working light
Ecopika-kun

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)◇使用前点検①接地線 ②動作の確認

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
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)
DK18023

Information materials

Index etc.
Voltage detector
Auxiliary device forvoltage detection

Robust, Professional Specification

TEST

Voltage detector
checker

EWL-4

52

Telescopic
type

Audio
signaling
and light
emitting

Voltage Detection
Test Switch

・Light weight body [About half weightcompared with previous product.]

Telescopic
type

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

・Promote the checking before detect the voltage.

Detecting PanelContact tip

・Simplified the checking before detect the voltage.

・Memolize the setting of volume control.

Index etc.

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

Waterproof■ Features

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

Voltage detector

Audio
signaling
and light
emitting

Voltage Display
SwitchVolumeControl

DC 1500V

HVC-750N3

VolumeControl・Adopt a strong Grounding magnet.

・Simplified the checking before detect the voltage.

Voltage
Display
SwitchAuxiliary device forvoltage detection

Voltage detector for
DC overhead contact wire

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

Voltage
Detection
Test Switch

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

HVC-1.5N3■ Dimensions

Discone hook stick

Grounding Magnet■ Dimensions
Grounding Magnet
Grounding Wire（About 3m）
Grounding Wire（About 1.2m）
Detecting Panel
DK18023①接地線 ②動作の確認◇使用前点検Rubber Pad
610±10mm

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Grip

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

1,100±50mm

Measuring
instrument

When shortened 1,400±50mm

Measuring
instrument

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Rubber Pad

Grip

Grounding Magnet
3.②テスト良ランプ点灯(点検完了)

DK18023

DK18009①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Contact tip

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

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

Contact tip

Discharge stick

Grounding Magnet

Grounding hook

Detecting Panel

Discharge stick

Discone hook stick

Phase tester

・Large Indication.

Grounding hook

Phase tester・Adopt a strong Grounding magnet.

53

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■ Specifications

Bag for housing

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

Illuminator■ Accessory■ Accessory

Railway products■ Specifications

Bag for housing

Information materials

Information materials

Railway products

Illuminator

When fully extended 4,100±100mm

54Voltage detector for
DC substation

Voltage detector■OptionAuxiliary device forvoltage detection

ACDC
HS-1.5NJ■ Features

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
The plate is attached to
grounding clip
Inspection before use（DH18007）

Grounding wire (about 2.5m）
Contact tip

Grounding wire band

○Grounding clip

○Grounding magnet

Water proof
conector

Insulating Stick

Grip• Discharging state of residual charge after power outage can be distinguished (HS - 1.5 NR)
Operation display (HS-1.5NR)
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

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

HVC-1.5N3S

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

Voltage detector
checker• Grounding wire options : Clip Type (HS-1.5NJ) and Magnet Type (HS-1.5NR)

HS-1.5NR

ferruleCrip■ Dimensions

HVC-1.5N3M

Contact tip (Metal ﬁtting)

Voltage detector for monorail

grounding terminal

Jointgrounding wire clip

Ferrule(4500)

Voltage detector formonorail■ Accessory
1100

DC 600〜1500V
Bag for housing■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

MagnetOperating stick

Grip

HVC-1.5N3M
Grounding magnet（UH20004）

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

Common bag for HS-1.5NJ/NR

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

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

Clip■ Specifications■ Specifications
Working voltage

1370

Measuring
instrument

音響
防滴
発光

Model
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.
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)

HS-1.5NJ
AC
DC
AC

Working voltage range

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

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

Grounding hook

Telescopic
type

Discone hook stick

Audio
signaling
and light
emitting

Discharge stick

Bag for housing

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

Phase tester
Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator：600〜7000V
DC HS-1.5NJ
HS-1.5NR：1000〜7000V

Railway products

音響
防滴
発光

Model
Railway products

AC 6600V■ Accessory

DC 1500V

ferruleInformation materials

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

Medium Voltage detector■ Dimensions

55

HS-1.5NJ
HS-1.5NR

Index etc.

Voltage detector for DC 1500V substation

Information materials

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

HVC-1.5N3S

56

AC 20kV〜80.5kV■ Accessory

Waterproof■Tip metal fitting
External appearance■ 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)

Bag for housing■ Specifications
Working voltage range
Operation starting voltage(Voltage to ground)AC20kV〜80.5kV■ Dimensions(5,090)

N.P.

TEST

Grounding hook

N.P.

TEST

1,320
Contact tip (Metal ﬁtting)

1.5m

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

Uncharged indication(Green LED lit)

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

Dimension

Weight5 kV ± 20% (bare wire)

Frequency

Charged indication(Red LED lit)

Model namePhase tester

Telescopic
type■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

Audio
signaling
and light
emitting* HST-W80JS-Y1 (spec. with Y-type Contact tip (Metal fitting) also exists.
38mm2
19/38/0.26
455g/m
12.9mm60mm2
19/60/0.26
680g/m
15.2mmDiscone hook stick

Detection of Charging State
HXR-20J(For normal railways) Non-contact
of AC Overhead Contact Lines
HXR-25J(For high speed rail)

1.5m

4.5m

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

100mm237/51/0.26
1120g/m
19.0mmDischarge stick

Discharge stick

Jointly developed with JR EAST (East Japan Railway Company)

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

20kV
25kV

Auxiliary device forvoltage detection

Voltage detector

and grounding metal fitting.

Voltage detector
checker

AC overhead contact wire

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

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■Grounding metal fitting (SA120)
100

53

40

100

320

2m

2-φ10 holes

Mass: 1,000g

18

60

OPEN
CR2025×1
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

■Standard modelType
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)

Groundingmetal ﬁtting

Bag forhousing

SA120
SA120

Sold separately
Sold separately

Illuminator

leep

ep B

p Ble

Blee

Railway products

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

55

Railway products
Information materials

125

28 31

Measuring
instrument

Energized part■Specifications

57

6

1.5m

■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

Information materials

Illuminator

Measuring
instrument

70

55

58

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.

Index etc.

Medium/Low voltage detector and its correct use

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 ofInformation materials

59

tric 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 to
The following explains the structure, performance, and correct use, mainly of high/low voltage detectors for AC cir-

1.1 Voltage detection of AC circuit

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

Fig. 1 Principle of voltage detector

and special high voltage detectors, and according to theIotargeted 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

GroundVoltage detector
Discharge stick

detectors used for construction work, inspecting electric

Measuring
instrument

1. Structure and operating principleof voltage detector

Discone hook stick

Grounding hookcuits, which are in general use.

Illuminator

Informationmaterials

make their selection and correct use well known.

Detector

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

voltage detectors, and they were mainly manufactured according to the in-house speciﬁcations of users, such as elec-

Railway products

Auxiliary device forvoltage detection(Article 339).

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

Information materials

Voltage detector

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

60

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

Voltage level detection

Acoustic frequency oscillation

lated cable.

BuzzerBattery
Stray capacitance toground in thedetecting part Co tothe human body

Electric line

Fig. 2 Neon light emission type voltage detector

task 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.

exclusively for AC use cannot detect a DC voltage. More-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]not grounded is impossible, because there is no returnroute for the current. The grounding system and voltage

E

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)

grounding terminalIntermittent light emission at low voltage,
and continuous light emission at high voltage

Contact tip

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

into an audio frequency to generate an easy-to-hear soundusing the switching circuit and oscillating circuit.

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

Electric line

Electric line Contact
tip

Contact tip

voltage to ground(Target voltage to be detected)‒EV

0V

Minus (‒) side grounding typeP

Lamp
Level detection(low voltage)

Acoustic
oscillation

Intermittent

Level detection(high voltage)

BuzzerBattery

Test buttonEgrounding terminalInternal circuit diagram
Withstandvoltage R

Grip

N

Insulating stick

Hand strap

This device identiﬁes charging or electric power outage

Sound

Light indicator emission part

GripSound emission parttor. These amplify the minute detection current to light

E
V
2

E
V
2

Test button

Contact tip

ﬁer circuit with semiconductors inside the voltage detec-

voltage to ground(Target voltage to be detected)

Fig. 5 Voltage detection of DC circuit

For conﬁrming that the internal
electronic circuit is normal

status by incorporating a battery and an electronic ampli-

E‒

Light indicator* At present, this type is not sold.

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

P

N

Fig. 6.

Co

Floating capacitanceto the earth

Index etc.

connecting the earth terminal to the ground, and ﬂow ato the earth of the low voltage DC circuit are shown in

Low voltage neon type voltage detector

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

FlickerTEST

tection method also diﬀers between AC and DC, a basic

the case of a DC circuit. Furthermore, a voltage detector

Sensitivity adjustment VR

detection is not possible through the covering of an insu-

live part of a electric line then create a closed circuit by

Grounding hookhas been widely used for low, high, and special high volt-

type of voltage, wiring, and grounding system, and the deVoltage detector

liant orange color, even in the case of a minute current. It

to have the contact tip make contact with an exposed

Auxiliary device forvoltage detection

Clip(grip)(target voltage to be detected) diﬀers depending on the

Voltage detector
checkerage is applied to a neon discharge tube, it glows a bril-

Test button

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

Phase tester

Light indicator

As described above, because the voltage to the ground

Discharge stick

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-

1.2 Voltage detection of DC circuit

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

E
voltage to ground(Target voltage to be detected)

N
0V

＋EV

Measuring
instrument

Index etc.

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

Information materials

to conﬁrm a voltage detector s functions.

Illuminatorvarious characteristics and to have the common type forRailway products

cuit it is possible to manufacture voltage detectors with

Information materials

Railway products

Illuminator

The great advantage is that by designing an ampliﬁer cir-6162

A high voltage detector is classiﬁed from the viewpoint

The ﬁrst main performance priority from the viewpoint

nance).

For comparison, Table 1 shows a partial quoted exampleof actual use for defective (porcelain) insulators, etc.

of a voltage detector s intended use is voltage detection

In addition, in the case of a voltage detector dedicated toof an apparatus and supplies material standard for Japa-

among apparatus for live-line work, as described in thesensitivity (operation starting voltage). It tends to be con-high voltages, there are various types depending on

nese electric power companies.

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

sidered 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

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

3,300 or less〃

2800±500〃

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

Company D

against the voltage to earth of 3,800 V for a 6,600 V cir-(Note) (1) The reason why the ratios in column (a) and column (b) diﬀer signiﬁ-

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 tocircuittion through a sheathed wire. In general, the value thats voltage, through a sheathed wire and with atween 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

Transformer

Earth

Transformer

thermore, there is also a case where 600 V or higher canbe detected, based on the regulation:

High voltage of

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

Voltage tobe detectedTransformer

254V

Earth

6.6kV
（3.3kV）
6.6kV（3.3kV）

also 20,000 V are manufactured,

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 humannot 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.

s auditory sense isage, the non-operating distance is usually 3 to 5 cm.

440V

440V

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

200V

200V

zero.
mum circuit voltage, which is 100 V (95 to 107 V), and the

100V[In the case of a three-phase three-line system, 200 V]

High voltage Low voltage

addition, voltage detection in a grounded cableway (line)
is naturally impossible, because the voltage to earth isVoltage tobe detectedcantly 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.)age performance of not only 14,000 V (6,900 V × 2), but

Illuminator

2.1 Operation starting voltage(detectable minimum voltage)

cuit, considering the margin, and to enable voltage detec-1000±200with a built-in battery, detectors having a withstand volt-

Grounding hook

Company B

to be used, for one minute. Regarding voltage detectors

Discone hook stick(2,900 or less) audio signaling and light emitting type

Discharge stick

250±50sponding to two times the voltage of the target cableway

Measuring
instrument

Company A

Generally, it shall withstand an AC test voltage corre-

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）

Railway products

Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator

Coated wire (b)stand voltage in terms of the safety of users, and indica-

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

Railway products

Bare wire (a)Remarkvoltage detection, in order to prevent miss-operation due(1) The low voltage detector generally targets the mini-

Information materials

Operation starting voltage [V]induction. Other important things to consider are with-the main body with a hand(s), then makes contact be-

63

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

Index etc.

age detection.

speciﬁed in Technical Standards (ministerial ordi-

Voltage detector

lower;

Auxiliary device forvoltage detection

2.3 Withstand voltage

Voltage detector
checkermargin considered appropriate for safety, is used for volt-

Phase tester

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

Information materials

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

2. Performance required of voltage
detectors

64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

Correct

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(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

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

(3) Conﬁrm that the detecting function of the voltage de-gloves when a hand approaches within a distance of 60

Voltage detection for the high voltage power cable is not

tector is normal, using a known power supply, voltage de-cm from the high-voltage part. If an ordinary voltage de-possible because the conductor is shielded and grounded

tector checker (Fig. 8), etc.

tector with a length of 25 cm is used, be sure to wear in-with conductive tape. (Fig. 10)(4) For a the voltage detector with a built-in battery, con-sulated rubber gloves. In the case of an inspection tour,

Perform voltage detection at the terminal that is speciallyﬁrm that the internal circuit and battery voltage are

and if protective equipment and/or protective guard areprovided at the cable end for detection, using a dedicatednormal by checking the mechanism (test button).

not carried, it is convenient to use a long voltage detector

voltage detector. Furthermore, there are also cases ofwith an insulating stick.

using a current detector for detecting a current that

(5) When there is a risk of a surge voltage being generat-

ﬂows in a cable.

Fig. 11 Method of detecting a residual charge
contact tip

DC Light indicator

Grip

Grounding clip

AC Light indicator
GroundingSound emission part wire

AC/DC high and low voltage detector(1) Voltage detection method for residual charge in power cables,
etc. against the ground
Power cable

Core wire
AC/DC high and low
voltage detectored, such as when a lightning strike occurs or when opening/closing a circuit breaker, switch, etc., stop using theInsulating stick

Grounding wire

Fig. 10 Voltage detection for a high voltage electric line is not possible.

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

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

ciple. When it is performed from sheer necessity, pay at-

Insulating layer

tention to the wet condition of the voltage detector, andThe voltage detector does
not operate because there
is a conductive shielding
layer and it is grounded.

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

whether operation in the rain is reliable or not. It is also
necessary to investigate and conﬁrm whether there is a

■Point to be noted about contact tip madeof conductive rubber

risk of electric shock or not.

3.5 Electric discharge of residual charge(7) Perform voltage detection for each phase, sequentially.

When there are electric power cables, power capacitor,(8) Perform voltage detection by moving the voltage de-etc. on the cableway, it can be hazardous even with an

tector closer from the earth side to the electric line.

AC cableway, because a residual DC charge remains

Insulation materials such as oil shall not adhere to

Groundingwire

Groundingwire

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

after an electric power outage. In the OSH Regulations

the conductive rubber part (detector). In particular,

3.3 How to make contact with a voltage detector

No. 339 Article 2, it is speciﬁed that

if gasoline, alcohol, etc. adhere, conductive properties

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

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

can be lost.

make contact with the part targeted for voltage detection.

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

not to apply a shock or strong force, caused by dropping,

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

When detecting voltage through a covered (sheathed)charge, the corresponding residual charge must be se-placing a heavy object on top, etc.

use a soft and clean dry cloth.

wire, ensure suﬃcient contact between the detector andcurely discharged with a safe method,and it is neces-(2) Pay attention not to leave it on a road or at a place

the wire as shown in Fig. 9. Otherwise, capacitance be-sary to completely discharge the residual charge with athat is subject to high temperatures, such as inside a car

tween the core wire and detection metal ﬁtting changes,

discharge bar or similar means. At this time, there arein summer.

and operating sensitivity decreases.

cases of a charge remaining between the cableway and(3) In winter, when a voltage detector is suddenly(1) Before voltage detection, conﬁrm that the voltage de-the earth, and cases of it remaining between lines. So, dis-brought out from a hot room to the cold outdoors or thetector corresponds to a suitable working voltage range

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

reverse, dew condensation can be generated at the volt-

3.2 Points to be noted for voltage detection

Regarding a cable-

3.6 Precautions for carrying and storage

Voltage detector
Auxiliary device forvoltage detection

than the grip of the voltage detector, because this may be

Voltage detector
checker

voltage detector conforms to electric line or not.

where the electric charge remains (Fig. 11).

Phase tester(3) During voltage detection, do not touch parts other

Grounding hook

(1) Conﬁrm whether the working voltage range of theage detection for the electric potential at both ends

Discone hook stick

voltage detector for dual AC/DC use, and perform voltMain body

Discharge stick

Electric line

Measuring
instrument

Main body

Illuminator

Electric line

Railway products

Moreover, when the residual charge is checked, use a

detector.

Discharge stick
Measuring
instrument
Illuminator
Railway products
Information materials

65

charge resistor and capacity of a condenser.

Contact tip

be replaced immediately.

Fig. 8 Voltage detector checker

there are also cases in which it takes a long time for discharging, depending on the resistance value of a dis-Wrong

Contact tip

essary to take suﬃcient time when discharging, because

Index etc.

3.1 Check carefully before use.

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

Information materials

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

Discone hook stick

Grounding hook

3. How to use voltage detectors correctly

66

Grounding hook
Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products
Information materials

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)• 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)

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

Earthhigh voltage electric line
(live line)

Capacitance（Fig. 12 Equivalent circuit using a voltage detector

C1

Capacitance

Human body using thevoltage detector
CapacitanceContact tip

C1 Human body

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

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

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

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

Ground• Other models not included above (including phase tes-high voltage)• OSH Regulations No.348 (Electrical insulating pro-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-Please conduct a voltage-resistance test for 1 minute at

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

times gives an indication when the inductive capacitance

al Safety in Labor Ministry

2x the maximum working voltage once every six months.

When the detector of a high/low voltage detector (withof the apparatus is large, even if the insulation of the

RIIS 〜 TR 〜85〜2(In conformance with Article 351 of the Ordinance on In-

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

target apparatus is normal.

(Safety guideline for portable voltage detector for

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

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

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

grounding of the apparatus is perfect or not. Further-cle 9 of the Standards for Personal Insulating Protective

age detector sometimes displays

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

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

sure the voltage to verify if it is in a safe range or notLine Work Equipment)) *For testing methods, refer to P.

This phenomenon is explained, as shown in Fig. 13, as theusing a meter with a relatively low impedance, such as

72 and P. 74.

human body and/or grip of the voltage detector that ap-

an analog tester.

(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 toters)

Voltage is applied,

operate. In such a case, abnormal operation can be pre-Fig. 14 Voltage detection at the casing of electric apparatus
Motor, etc.

Switch box, etc.

Inductive capacitance

Voltage detection

M

vented by keeping it as far as possible from the high voltage line, or carrying the voltage detector from the earthside, because induction is decreased.

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

The voltage detector
may be operated.

Index etc.
Voltage detector

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

C2

Capacitance between
the foot of a humanbody and the groundtors. For details of quoted regulations, etc., refer to the fol-tric power outage)

Equivalent circuit when approaching a high voltage electric line

Internal circuit of voltage detector

this document helps ensure correct use of voltage detec-• OSH Regulations No.339 (Work following an elec-

C2

GroundElectric line

the system/mechanism is naturally required. We hope

Induced voltage
from high voltage line

(between high voltage line and human body)

Internal circuit ofvoltage detector

electrical work, correct use with suﬃcient recognition of

lowing.

Co

Contact withgroundContact tip(1) For high and extra-high voltage detectors, the followto the product.

Io

tectors are important items for ensuring safety during

Auxiliary device forvoltage detection

Grounded metal ﬁtting

tors has been provided above. Again, because voltage de-Voltage detector
checker

conditions with notable inﬂuences are as follows.

3.7 Donʼt forget to conduct periodic inspections

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

Phase tester

sometimes changes depending on usage conditions. The

A comprehensive explanation of high/low voltage detec-• Technical guideline of National Institute of Industri-

Grounding hookinside a room, which is not exposed to direct sunlight.

Inductive capacitanceCo

Discone hook stickhigh voltage electric line※

Discharge stick

are not always the same, and detection performance※

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

Illuminator

The site environments where voltage detectors are used※

Railway products

So, attention is required.

Fig, 13 How to make contact between detector and surface of asheathed wireing periodic self-inspections are recommended according

67

4. Inﬂuence of unique usage conditions

Information materials

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

age detector, and its operating functions may be aﬀected.

68

■Periodic inspection, calibration test

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

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

Measuring
instrument

ing an order.

warranty.
・Consumable parts such as batteries attached to products, etc. are outside the scope of warranty. Further-■Consigned testing

more, because attached batteries are provided for the purpose of confirming operation, early replacement is

Taking advantage of being a leading maker of domestic test equipment and many years of experience, we

recommended.

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

■Repair・If the product malfunctions, please inquire at a sales office of our company or a sales agent. Requests for

Phase tester

repair 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.

Grounding hook・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]

Voltage detector test equipment

Simulated power pole for electricity distribution line

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■ISO management system Acquiring certification of ISO9001, ISO14001

period has expired.

Hasegawa Electric Co., Ltd. has acquired certification of “ISO9001,” which is the international standard of
the Quality management system, and certification of “ISO14001,” which is the international standard of
the Environment management system.

■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 inevitable

ISO9001 Registration No.: 0921

that functional deterioration occurs to the strength of components, insulation performance, etc. due toISO14001 Registration No.: E635

aging, micro-cracks caused by shocks when handling resin parts, etc. For safety, please use the productDiscone hook stick・If disassembly, modification, etc. is performed by customers, the product becomes outside the scope of

Auxiliary device forvoltage detection

・If calibration documents are required when purchasing a new product, please request them when plac-■Scope of warrantee

Voltage detector
checker・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.

Discharge stick

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.

Index etc.

■Warranty period

Measuring
instrument

Index etc.

Product Warranty, Maintenance69

catalog) or a sales office.
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

Illuminator

For a detailed table, please inquire at our companyʼs homepage (URL is given on the back cover of theRailway products

recommended replacement periods.

Information materials

Information materials

Railway products

Illuminator

until the recommended time for replacement under product control. The table to the right summarizes70In order to use the voltage detector correctly■Holding the voltage detector correctly

Medium and Low voltage use (For AC) the voltage detector. So, appropriate sensitivity cannot
The contact area with the hand affects the sensitivity ofbe obtained unless it is held firmly.

■Holding the voltage detector correctly

Bad

Bad

Good

Voltage detector
checker
Phase tester
Grounding hook

■Withstand voltage testingContact tip

Test voltage:
Maximum working voltage×2

Test voltage:
Maximum working voltage×2

Test time: 1 minute

Test time: 1 minute

Grip
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.

Metal foil, etc.

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

●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).

Discharge stick

Discone hook stick
Contact tip

Railway products
Information materials

71■Visual inspection

Measuring
instrument■Withstand voltage testing●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.

Illuminator■Visual inspection●Hold the grip ﬁrmly.

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

Information materials●Hold the grip ﬁrmly.

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick

Grounding hook

Phase tester

Voltage detector
checker

Auxiliary device forvoltage detection

Good

Index etc.

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.

Voltage detector

Low voltage use (For AC)

Auxiliary device forvoltage detection

Voltage detector

Index etc.

*Unauthorized copying and reproduction is prohibited72

Auxiliary device forvoltage detection■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

30cm

75kV

30cm

75kV

30cm

75kV

30cm

75kV

■During use

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

Measuring
instrument
Illuminator

Voltage detector
checker
Grounding hook

Metal foil, etc.

●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.

Method for determining the number of sections
Test voltage: Maximum working voltage×2■Visual inspection
Hasegawa Electric has defined the withstand voltage testing

Railway products

Discharge stick

Test points

Extend as far as possible

Information materials

Discone hook stick

Discone hook stick
Discharge stick

Grip

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.

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

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

Illuminator

Grounding hook

Metal foil, etc.

■During storage73

Phase tester

Phase tester

Red line

Measuring
instrument

Voltage detector
checkerContact tip

Railway products

Bad

Good

■When using a withstand voltage tester output voltage(MAX 75 kV)

Voltage detector■Withstand voltage testing

Information materials■Holding the voltage detector correctly

Index etc.

Medium voltage & High voltage detector use

Auxiliary device forvoltage detection

Voltage detector

Index etc.

*Unauthorized copying and reproduction is prohibited74

Voltage detector
Auxiliary device forvoltage detection
Voltage detector
checker＊Conﬁrm all 3 lines

Phase tester①Visual inspection of appearance and structure
Battery check by pushing the test button

Grounding hook

③Turn oﬀ the Circuit Breaker
Turn oﬀ the disconnector
switchInformation materials

75

Discone hook stick
Discharge stick
Measuring
instrument
Illuminator
Railway products

Railway products

Illuminator

Measuring
instrument

Discharge stick

Discone hook stick⑤Visual check of grounding hookset.
Appearance and construction
check②Conﬁrm normal operation of voltage detector contacting any
charged conductor already known⑥Connect 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

Voltage detector
checker

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.

Grounding hook

Phase tester

Index etc.

Index etc.

Confirming dead-line work76

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

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■Plug-in type AC current leakage relay■ωC measurement type digital ground fault
protection relay