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Install 313 2
Safety Courses 1
Guideline on Managing Safety in the Use of
Portable Electrical Equipment in the Workplace
Managing Safety in the Use
of Portable Electrical Equipment
The ISSA Electricity Section would like to thank all members of the international
working group for their effort and commitment in the development of the guideline.
Eamon OFlynn, Electricity Supply Board, Ireland Convenor
Burkhard Schulze, ZVEH, Germany
Hartmut Oelmann, BG ETE, Germany
Heiner Kehne, Siemens, Germany
Jens Jhling, ISSA, Electricity Section, Germany
Joydeep Mukherjee, ISSA, Electricity Section, Germany
Josef Fornusek, CSZE, Czech Republic
Jost Keller, Electrosuisse, Switzerland,
Lothar Kinzig, ABB, Germany
Mihai Budan, Transelectrica, Romania
Ral Arenas Garca, Endesa, Spain
Segundo Caeiro Ros, Endesa, Spain
Ted Vandevis, EU&SA, Canada
Wolfgang Pechoc, BG ETE, Germany
Zdenek Vclavek, CSZE, Czech Republic
c/o Berufsgenossenschaft Energie Textil Elektro
Gustav-Heinemann-Ufer 130, D-50968 Kln
All rights reserved. No part of this book may be reprinted or reproduced or utilzed in any form or by
14. Who is this Guideline aimed at?
15. Relevant Legislation / Codes of Practice
16. Guidance on Safety Standards associated with the Selection of
17. Electrical Installation Safety Features for Portable
18. Safe use and Care of Portable Electrical Equipment
19. Inspection of Portable Electrical Equipment by the User
10. Periodic inspection of Portable Electrical Equipment
11. Periodic Testing of Portable Electrical Equipment
12. Elements of a Periodic Inspection and Test System
Appendices and Recommended Source Documents
International Technical Standards /
National Legislation and Codes of Practice for Individual Countries
Examples of Periodic Test and Inspection Schedules
Examples of Inspection and Test Record Forms
Technical Standards for carrying out / Tests on Portable Electrical Equipment
Safety Marks / Identifiers associated with Portable Electrical Equipment
This Guideline describes safe practices that should be followed by those involved
with portable electrical equipment.
The Guideline is not designed as a training manual, but contains information, best
practices and general recommendations deemed appropriate for the safe use of
The approach contained in the guideline reflects a recommended minimum standard.
Note: The contents of the Guideline, including all advice, recommendations and procedures, are provided as a service by the ISSA Electricity Section and are intended
for informational purposes only. No representation of any kind is made to any person, business or entity whatsoever with regard to the accuracy, completeness or sufficiency of the information contained herein. Any and all use of or reliance upon this
Guideline and the information contained herein is solely and entirely at the users
risk. The ISSA Electricity Section shall not be in any way responsible or liable for any
form of loss or damage incurred as a result of any form or manner of reliance upon
any part or portion of this Guideline.
The use of portable electrical equipment is a common requirement in the workplace. Such equipment ranges from desk-lamps in offices to drills and grinders
The degree of maintenance, and this includes inspection and test, varies from
country to country in line with national legislation and codes of practice. In general, there is a requirement for employers to take the necessary steps that will minimise risk to employees, in so far as it is reasonably practicable.
It would appear that in the majority of countries, systematic inspection and test of
equipment by competent persons does not take place. However, in some countries the practice of periodic inspection and test has been instituted. The frequency of periodic inspections and tests can vary between weekly and 4 years.
The frequency is determined by the associated risk e. g. whether the equipment
is office-based; or in use on a construction site; what protection does the electrical installation provide; and also on the level of defects found as a result of
carrying out the process of inspection and test.
The purpose of this guideline is to promote a best practice approach to the maintenance of portable electrical equipment. It contains common elements from individual national practices that are considered to be best practice. Examples of
national legislation / codes of practice of participating countries are included in
Note on Accident Statistics:
Accident statistics covering electrical aspects of Portable Electrical Equipment
are inconsistent from country to country due to variations in the methods of compilation. Portable equipment is defined in different ways, and in any event the
vast majority of associated accidents are non-electrical. Where electrical accidents are reported, they may not be due to defective equipment. It is therefore
difficult to come to any firm conclusions.
An examination of available information shows that the ratio of portable electrical
equipment accidents to all electrical accidents is approximately 1:5 (source:
We also know that if there is a risk due to electricity, the risk of fatality is significantly greater.
A typical fatality: injury ratio for all accidents can be in the order of 1:160, but
this rises to 1:14, where electricity is the cause of the accident (source: Canada).
Furthermore, this Guideline includes the maintenance of hand-held tools. The
greatest risk of electrical shock applies when there is a likelihood of current flowing from hand to hand. Hand-held equipment presents a particular danger in this
regard. It is therefore essential that all possible steps be taken to reduce any risk
associated with Portable Electrical Equipment.
It is hoped that this Guideline will contribute towards a safer working environment for users of Portable Electrical Equipment.
The focus of the guideline is directed at low voltage AC (110 to 230 V) equipment which is commonly used in the workplace. In particular it refers to portable
Throughout this guide the term portable electrical equipment is used to describe
electrical devices that are not part of a fixed electrical installation, but are intended to be connected to a fixed installation or generator by means of a flexible
cable and socket-outlet. Typical examples are portable, hand operated and movable plug-in electrical appliances used at a workplace.
The equipment covered in this Guideline is defined in IEV 60050-826 as being
Handheld or Mobile.
Handheld: This is defined as equipment that is intended to be held in the hand
Mobile: This is defined as equipment that is moved while in operation, or which
can easily be moved from one place to another while connected to the supply.
This Guideline applies to portable equipment having a mass not exceeding
18 kgs, and connection to the electrical supply is assumed to be via plug and
Flexible Cables / Extension Leads
The guideline deals with safe practices which will ensure that such devices are
Such practices will encompass safety features in the type of electrical installation
which supplies the portable equipment.
However, it will principally deal with routine maintenance and this includes
inspection and test of equipment. The guideline contains a best practice
approach to inspection and test. It also covers the identification and tagging of
equipment to ensure that adequate records exist of test and inspection.
A risk assessment will assist in deciding on the degree of inspection and test.
The degree of inspection and test will vary depending on whether the equipment
is used in a hostile operating environment, or used in an office building, a classroom, etc.
The quality of the equipment is of paramount importance in the first instance.
Some guidance on recognising good quality equipment is also included.
(IEC-Definitions are used where available)
A person possessing adequate qualifications, such as suitable training and sufficient knowledge, experience and skill for the safe performance of the specific
work. A competent person must be approved to carry out any work undertaken.
Includes an operating environment that may cause mechanical damage to the
item of equipment or expose the equipment to moisture, heat, vibration, corrosive substances or dust.
Examination of electrical equipment using all the senses in order to ascertain
correct selection and proper erection of electrical equipment.
Combination of all technical and administrative actions including supervision
actions intended to retain an item in, or restore it to a state in which it can perform a required function.
According to IEV 60050-826, this is equipment that is either Handheld or
Handheld (hand-held equipment 826-16-05):
This is defined as equipment that is intended to be held in the hand during normal use.
Mobile (mobile equipment 826-16-04):
This is defined as equipment that is moved while in operation, or which
can easily be moved from one place to another while connected to the
supply. This Guideline applies to portable equipment having a mass not
exceeding 18 kgs.
(Connection of equipment to the power supply is assumed to be via a plug and
socket-outlet.)
Recording of the results of inspection and testing.
Implementation of measures on electrical equipment by means of which its effectiveness is proved.
NOTE: It includes ascertaining values by means of appropriate measuring instruments, said values not being detectable by inspection.
All measures by means of which compliance of the electrical equipment with the
relevant requirements of technical standards and those of manufacturers.
NOTE: It comprises inspection, testing and reporting.
Any place where a worker is required to carry out work.
4. Who is the Guideline aimed at?
It is aimed at all employers who are responsible for workplaces where portable
electrical equipment is used. Employers are responsible under law for the safety
of their employees. They should therefore take all reasonable care that their
employees work in a safe environment and use safe equipment.
The following questions will help to evaluate if a company is effectively managing electrical safety in the workplace:
Does the Company have a Health and Safety Management System in
Does it have a Safety Policy, has it identified hazards and carried out
Does it set safety targets, measure its performance and engage in continuous improvement?
Does it communicate regularly with employees about electrical safety
Is the workplace a safe environment? Are the workers competent and
It is the last point that this Guideline specifically addresses.
Where identified by a risk assessment, the employer is responsible for the
design and implementation of an effective and safe system of inspection and
test. The design and implementation of this system should be carried out by
someone having knowledge and experience of this particular subject.
This additionally applies to equipment used by contractors and to the use of
The purpose of this document is to give employers guidance in the development
of Company policy in regard to the safe use of their portable electrical equipment.
The content of the Guideline is also intended to be understood by non-technical
5. Relevant Legislation / Codes of Practice
There exists a wide range of publications which have relevance to this topic;
Directives, International Technical Standards, National Legislation and Codes of
Subject matter relevant to the safety of portable electrical equipment includes:
Standard of Electrical Installations
Compliance of the Equipment with Safety Symbols / Identifiers, at time
How the equipment is used and where
How is it maintained, including inspection and testing
Appendix 1 includes examples of National Legislation and Codes of Practice.
The List of Recommended Source Documents at the end of this Guideline
includes relevant Directives and International Technical Standards.
In the course of developing this Guideline reference has been made to these
6. Guidance on Safety Standards
6. associated with the Selection of
6. Portable Electrical Equipment
When purchasing portable electrical equipment always make sure it complies
with the compulsory requirements contained in national legislation and relevant
Such regulations require manufacturers, importers, product suppliers, etc. to
deliver only safe products to the marketplace. Also, these products should be
delivered with instructions on their safe use.
Examples of Safety Marks / Identifiers:
Reputable certification of adequate safety in equipment purchased can be identified via the above mentioned Marks / Identifiers.
The association of these Marks / Identifiers with portable equipment in the marketplace indicates a level of safety which has been verified by an independent
This means that a purchaser does not have to rely on the claims of a manufacturer / supplier.
Purchasers of equipment need to be aware of possible unauthorised use of
It is important to distinguish between Quality Marks / Identifiers and those relating to the Safety features of the equipment.
This Guideline is principally concerned with Safety.
6. Guidance on Safety Standards associated with the Selection
Further information on the above mentioned and other Marks / Identifiers is contained in Appendix 5.
There are also other requirements which the customer may wish to specify in
relation to portable equipment in addition to the above mentioned:
Easy to use (ergonomic features, size etc.)
Adequate Instructions in the language of the country in which the equipment is sold
Technical support and training included in the manufacturers tender
Level of Maintenance / Reliability
Has the manufacturer implemented a certified quality management system (e. g. ISO 9001)
Warning devices, control indications and markings which are essential to
the safety of users must be present and easily understood
A further consideration in selecting portable electrical equipment is
whether an equivalent battery-operated version is available. Where this
applies, a dramatic reduction in risk results to the user and the need for
safety controls as outlined in this guideline is significantly reduced.
7. Electrical Installation Safety Features
7. for Portable Electrical Equipment
The safety features of electrical installations are of prime importance. These are
designed to protect the users of portable equipment. Compliance with Technical
Standard IEC 60364, or equivalent, will ensure that the installation is of the highest standard.
Use of the following equipment will reduce the risk to users using portable electrical equipment:
In general the installation of Residual Current (Protective) Devices (RCDs)
[Canada: GFCI: Ground Fault Circuit Interrupters] provides protection to
users of portable equipment.
When an electrical device is operating safely, the amount of current going
to the device equals that leaving.
The RCD compares these currents.
If there is a difference between these currents (e. g. a leakage from the
circuit), a dangerous situation arises for the equipment user, and the RCD
switches off the current flow immediately, thus protecting the user.
These RCDs should trip in 0.4 sec or less, on leakage currents not
exceeding 30 mA and provide the necessary protection to prevent danger
to the user from life threatening electric shock.
However, the RCD itself needs to be tested periodically as follows:
a) Mechanical test: using the dedicated push-button, trip and re-set at frequent intervals.
b) It should be electrically tested periodically by a competent person to
ensure that it operates at a leakage current of maximum 30 mA in a
time of not more than 0.4 sec.
7. Electrical Installation Safety Features for Portable Electrical Equipment
The provision of lower voltage supply equipment to supply portable tools
used in areas with increased risk of dangerous shock currents, e. g. construction sites (see IEC 60364-7-704) or conducting locations with restricted movement (see IEC 60364-7-706).
Such reduced voltage supply equipment typically consists of a portable
step down transformer supplying a nominal 110 V AC output. In some
cases the secondary winding is centre-tapped to earth which ensures that
the maximum possible shock voltage to earth is approximately 55 V (as
used in the UK and in Ireland).
8. Safe use and Care of Portable Electrical
As a minimum, the following should apply:
Use it in its intended manner as per manufacturers instructions, in its
intended environment and never overload it
It should be serviced only by competent personnel, and in accordance
Transport it in a secure manner (so as not subject it to unnecessary
shocks or vibrations)
Keep the flexible cable away from heat, oil, sharp edges, and moving
Assess all risks from the equipment of damage to nearby electrical
cables (including supply cables to the equipment), and water pipes
Never use in rain, or in wet conditions (refer to the IP rating)
Only use in explosive atmosphere if rated for such conditions (Refer to
the Ex Rating)
When in use, be aware of the following danger signs:
Arcs / sparks
Sizzling / buzzing sounds
Odours that smell of burning material, e. g. plastic, rubber
Frequent tripping of circuit breakers / fuses
Use correctly rated protective devices and never by-pass these devices
Store it in a careful manner when not in use
Where appropriate, users should be instructed in the use and care of equipment,
or the relevant instructions concerning the work equipment should be available
in a form and language they can understand.
9. Inspection of Portable Electrical
9. Equipment by the User
Before using any portable electrical equipment, the user should inspect the
equipment. The user visually checks that it is safe to use, with no signs of damage or defects, and that it is correctly rated for use in the proposed location and
Users should be instructed in the method of carrying out inspections.
Tool / Appliance: Is the on/off switch working correctly? Is there any sign of
damage to casing? Are there any loose parts or missing screws? Is there
evidence of overheating or moisture?
Examine its voltage rating to ensure that it is the right voltage for the purpose
(e. g. 110 volt hand tools for construction sites UK and Ireland) and the
appropriate plug-top for that voltage.
Are live parts properly guarded, so as not to be inadvertently accessible?
ii Flexible Cable and Extension leads: Are they securely anchored to plug
and to appliance / tool with no signs of cuts, fraying, brittle cable, leads
kinked or coiled, taped joints or overloading (overheating indicated by colour
change or smell)? Cable cores should not be externally visible.
All cables should be appropriate to the environment in which they are used.
iii Plug: Is cable securely anchored, with no signs of cracked casing, overheating, loose or bent pins, or loose strands?
Fuses, where fitted, should not show any signs of overheating and be correctly secured.
iv Socket-outlet: Is it free from cracks or other damage? Are there any signs of
overheating? Is it properly secured?
9. Inspection of Portable Electrical Equipment by the User
If the user-checks indicate that the tool / appliance is faulty or defective or if a
fault occurs during subsequent use, the tool / appliance should be taken out of
service. It should be marked / tagged as unsafe. It should not be used again
until the fault has been identified and repaired and the tool / appliance is tested
and certified by a competent person as fit for use.
10. Periodic inspection of Portable Electrical
10. Equipment by a competent person
This requirement applies to portable electrical equipment that is exposed to conditions likely to cause deterioration liable to result in danger. The requirement to
carry out periodic inspections and the frequency of inspection will depend on the
outcome of a risk assessment of the hazards associated with the environment in
which the equipment is used. For example, in Ireland where 110 V supplies (with
earthed centre-tap, 55 V) for portable equipment are a legal requirement on construction sites, such portable equipment would not be subjected to periodic
inspection and test by a competent person.
See Appendix 2 for examples of Periodic Inspection Schedules.
Where the outcome of a risk assessment deems it necessary, a competent person should carry out a user inspection as in 9 above, and in addition check the
Tool / Appliance: If the appliance is designed to be earthed (Class I) check
the integrity of the earth. If it is an appliance which is not earthed (Class 2),
check for the symbol.
This is a square within a square and may be found on the statutory
If it is to be used in damp or wet conditions or atmospheres, or in conditions
where there is a liability of ingress of dust or solids into its works, has it an
appropriate IP rating?
If it is to be used in potentially explosive atmospheres, has it an appropriate
Ex Rating?
Rated voltage and if appropriate Class category, IP and Ex ratings should be
stamped on the appliance or on its rating plate.
10. Periodic inspection of Portable Electrical Equipment by a competent person
ii Flexible Cable, Extension leads, and plugs: Check that the cable / mains
lead is secure at both the tool / appliance and plug and where covers can
be removed, that its cores are secure and correctly connected, with no
excess insulation removed and with no bare loose strands. Check that fusing
is correct, where fitted.
The frequency of these inspections should be appropriate to controlling the
assessed risks associated with the equipment use. Make a record of such
inspections and retain for a suitable period of time.
If the inspection by the competent person indicates that the tool / appliance is
faulty or defective, the tool / appliance should be taken out of service. It should
be marked / tagged as unsafe. It should not be used again until the fault has
been identified and repaired and the tool / appliance tested and certified by a
competent person as fit for use.
Note that these periodic inspections constitute a more rigorous approach (e. g.
involve removal of covers) than that carried out by the user. They also play an
auditing and back-up role to the user inspections.
11. Periodic Testing of Portable Electrical
11. Equipment by a Competent Person
The requirement to test and its frequency, will depend on the outcome of a risk
assessment of the hazards associated with the environment in which the equipment is used e. g. equipment used in environments where it is safe from accidental damage or environmental degradation, may not need to be tested. Where
testing is deemed appropriate, it should be carried out by a competent person.
Testing will normally be carried out in conjunction with an inspection as
described in Section 10 above.
See Appendix 2 for examples of Periodic Test Schedules.
Reasons for carrying out testing would include:
As a result of inspections carried out
If required by manufacturers instructions
After a prolonged period of non-use
Where previous history involves accidents or near misses
Where equipment is second-hand and previous history is unknown
Use of equipment in a hazardous environment:
Where there maybe a risk of mechanical damage or heavy wear and
Risk of bad weather conditions
Extremes of temperature / pressure
Presence of moisture, dust
Use in explosive atmosphere
A User Inspection may be sufficient where the following applies:
Use in a low risk environment, and
Where Class 2 insulation applies
11. Periodic Testing of Portable Electrical Equipment by a Competent Person
Periodic Inspection or Testing may be appropriate where the following
Equipment is 230 V AC and Class 1
Equipment is used in a hazardous environment
Equipment is handheld:
Therefore is more likely to become damaged
There is greater risk of fatal shock to the user
Tests carried out should include those listed below test and tolerance values
may need to be sourced from manufacturers:
Verify the polarity of the supply cables and that connections to the equipment are correct.
If the electrical safety of equipment is based on a low impedance to earth
[those who have a Protective Earth (PE) conductor], then the earth continuity has to be checked.
The impedance has to be measured between PE-connection at the powerplug and any metallic part of the equipment which may be hazardous in
case of an electrical fault.
For protection against electrical shock the PE-impedance should be at
about 0.3 Ohm or better.
Electrical safety depends also on a good insulation resistance between the
electrical parts and the touchable and metallic housing. Usually the resistance is measured at a voltage of 250 V or 500 V DC between the internal
parts and the metallic parts of the housing. An insulation resistance of
1 Megohm or more is usually good.
This is a final check to verify that the equipment is functioning properly.
For some equipment it may be recommended by the manufacturer to do
some additional tests or inspections.
noise: grinders, drills, vacuum cleaners
radiation: hand lamps with power LEDs
force: drills
temperature: soldering irons
Which additional tests are recommended and how to do these should be
found in the user manual.
If testing is successful, then:
Certify the tool / appliance as fit for use
Keep a record for a suitable period of time of
name of the inspector and
date on testing
If the test is unsuccessful, the tool / appliance should be taken out of service. It
should be marked / tagged as unsafe. It should not be used again until the fault
has been identified and repaired and the tool / appliance tested and certified by
a competent person as fit for use.
12. Elements of a Periodic Inspection
12. and Test System
A risk assessment will indicate whether a system for the inspection and test of
portable electrical equipment will need to be designed and implemented.
The elements of such a system should include the following:
Institute requirement for routine visual checks by the user
Development of checklists for formal Inspections
Institute system of periodic inspections by competent persons
Development of a Work Method for Testing
Institute system of testing by competent persons to include tagging of
Tagging to include identification and use until date
Tagging to be durable and prominent
Bar codes may be used for identification
The system of Inspection and Test to accommodate an outcome where failures occur; appropriate tagging, removal from service etc
Carry out maintenance, repair, and replacement, of tools and equipment,
Training / instruction of employees in the safe use of the portable electrical
Training / instruction of employees to carry out User Inspections
Test instrumentation should be calibrated in compliance with best practice
It will be necessary to keep a register of all electrical tools as well as
records of all inspections, test and maintenance carried out.
In particular, the following information should be recorded:
Tool Register to include: Make, Model, Serial Number, Year of
Purchase, Location, Frequency of Formal Inspection, Frequency of
Identification of equipment to be inspected or tested (bar code, serial
number, etc)
Records of Periodic Inspections and Tests to include:
Name of the person who carried out the inspection, test or maintenance
Dates carried out
Date when the next inspection and test must be carried out
Records of Periodic Inspections and Testing should be held for an adequate period of time and at least until the next inspection and test
International Technical Standards / National Legislation and Codes of
Practice for Individual Countries
Measures to reduce risk for users of Portable Electrical Equipment are covered
in a range of publications which includes directives, legislation, international
standards, and national codes of practice.
The quality of the electrical installation and the associated protection provided,
perform a primary role in regard to the safety of users of Portable Electrical
The following are some examples of requirements and recommendations which
impact on the safety of persons using Portable Electrical Equipment.
The following are installation based measures for increased safety of handling
with portable electrical equipment taken from the IEC 60364 standard.
IEC 60364-4-41: 2005-12 Low-voltage electrical installations Part 4-41:
Protection for safety Protection against electric shock
In AC systems, additional protection by means of a residual current protective
device (RCD) in accordance with 415.1 shall be provided for
socket-outlets with a rated current not exceeding 20 A that are for use by
and are intended for general use; and
NOTE 1 An exemption may be made for:
socket-outlets for use under the supervision of skilled or instructed
persons, e. g., in some commercial or industrial locations or
a specific socket-outlet provided for connection of a particular item of equipment
NOTE 2 In Spain and Ireland additional protection is provided for socket-outlets
with a rated current up to 32 A intended for use by ordinary persons.
NOTE 3 In Belgium, every electrical installation under the supervision of ordinary
persons must be protected by a RCD with a rated operating residual current not
exceeding 300 mA; for circuits supplying bathrooms, washing machines, dishwashers, etc. An additional protection by means of a RCD with a rated residual
operating current not exceeding 30 mA is mandatory; the above mentioned is
valid for electrical installations of which the earthing resistance is lower than
30 ; in case of earthing resistance higher than 30 and lower than 100 ,
additional RCDs with a rated operating residual current not exceeding 100 mA
should be provided. An earthing resistance higher than 100 is not permitted.
NOTE 4 In Norway all commercial and industrial companies are covered by regulations requiring procedures for qualifications and training of employees. Except
for areas open for the public, socket-outlets in such locations are normally not
considered to be for general use of ordinary people. Socket-outlets in dwellings
and BA2 locations are intended for general use by ordinary people.
NOTE 5 In China a 30 mA RCD is not required for the socket-outlet supplying air
conditioning equipment and 2 erected in position not accessible to persons.
IEC 60364-7-704: 2005-10 Low-voltage electrical installations
Part 7-704: Requirements for special installations or locations
704.410.3.1.6 Circuits supplying socket-outlets with rated current up to and
including 32 A and other circuits supplying hand-held electrical equipment with
rated current up to and including 32 A shall be protected by
residual current devices having a rated residual operating current not
exceeding 30 mA (412.5), or
be supplied by SELV or PELV (Separated or Protected Extra Low Voltage)
(411.1), or
have electrical separation of circuits (413.5), each socket-outlet and handheld electrical equipment being supplied by an individual isolating transformer or by separate windings of an isolating transformer
NOTE 1 In the Netherlands, circuits supplying socket-outlets with rated current
up to and including 32 A that supply other Assemblies for Construction Sites
(ACSs) are exempted, provided that constructional provisions for these socketoutlet have been provided to avoid misuse.
NOTE 2 In Germany, circuits supplying socket-outlets with rated current up to
and including 32 A are exempted provided that constructional provisions for
these socket-outlet have been provided to avoid misuse.
NOTE 3 In Finland, circuits supplying socket-outlets with rated current up to and
including 32 A that supply other are exempted provided that constructional provisions or warning signs for these socket-outlet have been provided to avoid misuse.
NOTE 4 In Denmark, circuits supplying socket-outlets with rated current up to
and including 32 A that supply other ACSs are exempted provided that a warning
is provided in Danish on the ACS e. g. with the following text: Kun til forsyning af
andre tavier. Er ikke HFI-beskyttet.
(Only for the supply of other ACS. No RCD protection)
NOTE 5 In Ireland, electrical separation is not permitted in site installations.
NOTE 6 In Italy PELV is not admitted.
NOTE 7 In Sweden, the requirement of this clause applies for socket outlets with
rated current up to and including 16 A.
NOTE 8 In Hungary, if the environmental conditions require it, residual current
devices with rated residual operating current of 100 mA can be used.
NOTE 9 In France, all final circuits supplying socket-outlets shall be protected by
exceeding 30 mA (412.5) or
be supplied by SELV or PELV (411.1) or
have electrical separation of circuits (413.5), each socket-outlet and handheld electrical equipment being supplied by an individual isolating transformer or by separate windings of an isolating transformer.
National Legislation Republic of Ireland
Extract from The Safety, Health, and Welfare at Work (General Application)
Regulation 81 Portable equipment
1. An employer shall ensure that:
a. A circuit supplying portable equipment or a socket outlet intended to supply portable equipment, including any circuit supplied by an electrical generator, and in which is used alternating current at a voltage
exceeding 125 volts, and
not exceeding 1,000 volts,
is protected by one or more residual current devices having a tripping current not exceeding 30 mA operating within such period of time so as to
provide the necessary protection to prevent danger to any person coming
into direct or indirect contact with any live part of the circuit.
b. Portable equipment is maintained in a manner fit for safe use, and
c. portable equipment which is
exposed to conditions causing deterioration liable to result in danger,
supplied at a voltage exceeding 125 volts alternating current, is
periodically inspected by a competent person, appropriate to the nature,
location and use of the equipment.
2. An employer shall ensure, where appropriate, that a competent person
a. tests any portable equipment described in paragraph (1)(c)(i) and (ii), and
b. certifies whether or not the portable equipment (including any cables and
plugs) was, on the day of test, as far as could reasonably be ascertained,
safe and without risk to persons coming into direct or indirect contact with
any live part of the equipment.
3. If the certificate of the competent person referred to in paragraph (2) indicates that the portable equipment tested was not, on the day of the test, safe
and without risk, as described in that paragraph, the employer shall ensure
that the equipment is not used until it is made safe and certified as such in
4. An employer shall ensure that:
a. portable equipment, other than portable transformers and portable generators, supplied at a voltage exceeding 125 volts alternating current is not
external quarrying activities, or
damp or confined locations
unless its rating exceeds 2 kilovolt amperes.
b. Portable hand lamps supplied at a voltage exceeding 25 volts alternating
current or 50 volts direct current are not used in
damp or confined locations, and
c. where a transformer or engine-driven generator is used to supply electricity to portable equipment at a voltage greater than 25 volts, but not
exceeding 125 volts, alternating current, the neutral (star) point of the
secondary windings of three-phase transformers and generators, or the
midpoint of the secondary windings of single-phase transformers and generators, shall be connected to earth, and in the case of transformers,
these shall be of the double-wound isolating type.
The German Berufsgenossenschaft recommendations (BGI 608) covering
safety measures applying to portable electrical equipment at construction
sites and assembly sites
Electrical installations and equipment have to be selected taking account of the
ambient conditions like humidity, dust, mechanical or chemical strain.
The electrical supply for portable electrical equipment is only allowed from suitable points of delivery, i. e assemblies for construction sites, standby electric
generator and transformers with separated windings.
For small construction sites portable protection devices are also permitted.
These are special RCDs with additional functions:
Voltage control on the protective conductor
Monitoring of the protective conductor in regard to breakage
Monitoring the continuity of the protective conductor if external voltage is
These protection devices are connected between the socket-outlet and
Hand-operated power tools must conform to protection category IP 2X at least.
Under special operating conditions, e. g. wet core drilling or wet grinding, additional safety measures like safety extra-low voltage or protection separation are
Luminous sources have to conform to protection category IP 23 at least, floor
lights and hand lamps protection category IP 55 or higher. Hand lamps need to
conform to protection class II or III and tangible parts must consist of insulating
Cable of the H07RN-F type is in general required for electrical equipment.
However, where maximum cable length is 4m, cable type H05RN-F may be
United Kingdom Legal Requirements
1. The initial integrity (safety) of new work equipment when first supplied, is covered by:
Section 6 of the Health and Safety at Work etc Act 1974, which requires
any person who designs, manufactures, imports or supplies any article
for use at work or any article of fairground equipment;
to ensure so far as is reasonable practicable, that the article is so
designed and constructed that it will be safe and without risks to health
at all times when it is being set, used, cleaned or maintained by a person at work;
to take such steps as are necessary to secure that persons supplied by
that person with the article are provided with adequate information about
the use for which the article is designed or has been tested and about
any conditions necessary to ensure that it will be safe and without risks
to health at all such times as are mentioned in paragraph (1) above and
when it is being dismantled or disposed of.
The Electrical Equipment (Safety) Regulations 1994, which require certain safety objectives to be met, including design and construction to
assure protection against hazards arising from the electrical equipment
and protection against hazards that may be caused by external influences on the electrical equipment;
The Supply of Machinery (Safety) (Amendment) Regulations 1994,
which contain a general requirement for protection against electrical hazards.
2. The general duties covering the use and maintenance of work equipment, in
addition to the Electricity at Work Regulations 1989, are contained in:
Section 2 of the Health and Safety at Work etc Act 1974, which requires
the provision and maintenance of plantso far as is reasonably practicable safe;
Management of Health and Safety at Work Regulations 1999, which
require an employer to make a suitable and sufficient assessment of the
risks to health and safety of employees.for the purpose of identifying
the measures he needs to take to comply with the requirements.
imposed upon himunder other relevant law. Such a risk assessment
should include risks arising from the use of electrical equipment;
require the employer (person in control) to select suitable work equipment (regulation 5) and to ensure that work equipment is maintained in
an efficient state, in efficient working order and in good repair.
Examples of Periodic Inspection and Test Schedules
The German Berufsgenossenschaft recommendations for tests and
The guidelines contained in the table below apply to testing periods. These
checking intervals have to be adjusted to the respective operational and ambient
conditions depending on the results of a Risk Assessment.
It is recommended to mark the equipment checked and approved as free of
defects e. g. with an inspection plate or a label.
Note on Construction sites and assembly sites
The effectiveness of the safety measures with RCD has to be checked by a
skilled person at least once per month. In addition to that, the operator has to
press the check button each workday.
Portable electrical equipment used at construction sites and assembly sites has
to be checked for external visible damages and defects before each use.
testing period1
(aluminium, magnesium and greased laminations),
usage in areas with conductive dust
wet grinding of non-conductive materials,
core drilling, steel-girder construction, tunnel
and gallery engineering
structural engineering, general civil engineering,
electrical installation, sanitary and heating
installation, wood construction
office, e. g. desk lamp, desktop printer, fax,
connecting line, power supply unit for notebook,
If an error quota > 2% has been verified, the checking intervals should be reduced.
Example 2: UK Suggested Initial Inspection and Test Intervals
Periodic Visual Combined
before issue /
110 V weekly
110 V monthly
230 V mains
110 V before first
use on site,
before first use on
site, then monthly
equipment (Class 2),
not hand-held, e.g.
fans, table lamps
Hand-held doubleinsulated equipment
(Class 2), e.g. some
floor cleaners, irons
e.g. electric kettles,
some floor cleaners
Cables / plugs /
R e p a ir e d , s e r v ic e d
a n d s e c o n d -h a n d
H ir e e q u ip m e n t
F a c t o r ie s , p la c e s o f
w o rk o r re p a ir,
m a n u fa c tu r in g ,
a s s e m b ly ,
o f e n v ir o n m e n t /
P r io r to h ire
C la s s II ( d o u b le
in s u la te d )
d a ily o r
b e fo r e e a c h
E le c t r ic a l T e s t
R e s id u a l C u rre n t
D e v ic e s (R C D s )
C o r d S e ts a n d
A fte r r e p a ir o r s e r v ic e w h ic h c o u ld a ffe c t e le c tr ic a l s a fe ty , o r o n r e in tr o d u c tio n to s e r v ic e .
P r o te c tiv e ly
e a r th e d
C l a s s o f e q u ip m e n t
Example 3: Inspection and Test Intervals
Example 1: Register of Electrical Equipment for Inspection and Test
Co m p le t e d b y : _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
D a t e t o b e r e v ie w e d : _ _ _ / _ _ _ / _ _ _
Co rr os iv e s ubst an ces
H o s t ile o p e r a t in g e n v ir o n m e n t
Periodic inspection /
m a intain in safe
N o n h o s t ile
If equipment has been inspected /
tested , i ndi cate resu lt:
pass / fail, inspection / test date
and tag number
c o n d it io n o f e q u ip m e n t
N o t e : D a m a g e d o r f a u lt y e q u ip m e n t m u s t b e t a k e n o u t o f s e r v ic e a n d r e p a ire d b y a c o m p e t e n t p e r s o n o r r e p la c e d .
Equipm ent description
Fill the details in each colum n for plug- in type electrical equipm ent used in the workplace. Identify t h e o p e r a ti n g e n v i r o n m e nt of your equipment.
E q u i p m e n t t h a t h a s b e e n a s s e s s e d , a s b e i n g u s e d i n a h o s t i l e o p e r a t in g e n v i r o n m e n t M U S T b e p e r i o d i c a l l y i n s p e c t e d a n d t e s t e d a n d t h e t e s t r e s u l t s r e c o r d e d .
E q u i p m e n t t h a t h a s b e e n a s s e s s e d , a s b e i n g u s e d i n a n o n - h o s t il e o p e r a t i n g e n v i r o n m e n t m a y r e q u i r e p e r i o d i c i n s p e c t i o n a n d m u s t b e m a i n t a i n e d i n a s a f e
T h i s r i s k a s s e s s m e n t a n d i n s p e c t i o n r e c o r d s h o u l d b e r e v i e w e d i f t h e r e i s a c h a n g e i n e q u i p m e n t u s e / l o c a t i o n o r i f a n e l e c t r i c a l i n c i d en t o c c u r s .
L o c a t io n : _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
D a t e r is k a s s e s s m e n t o r in s p e c t io n c o m p le t e d : _ _ _ _ / _ _ _ _ / _ _ _ _
Example 2: Electrical Equipment Risk Assessment and Inspection Record
Example 3: Equipment Periodic Inspection and Combined Inspection and
Handheld / Fixed
Note: P = Pass / F = Fail
Technical Standards for carrying out tests on Portable Electrical
IEC 60335-1:2006
Hand-held motor operated
Safety of transportable motor- EN 61029-1:2003
operated electric tools
Hand-held electric motor
protection against access
to live parts
Verification of earth
UL North American Product Safety Certification
Underwriters Laboratories (UL) is an independent product safety
testing and certification organization. The UL Mark on a product
means that it has been tested by UL and determined to meet UL's
requirements. Products are also periodically checked at the manufacturers' facility. The Mark indicates compliance with U.S. (UL)
and Canadian (CSA) safety standards such as, UL 61010-1 and
CSA 61010-1. The Canada/U.S. UL Mark is optional. UL encourages those manufacturers with products certified for both countries to use this new, combined Mark, but they may continue using
separate UL Marks for the United States and Canada.
If this mark appears with the indicator C and US or NRTL/C it
means that the product is certified for both the U.S. and Canadian
markets, to the applicable U.S. and Canadian standards.
The International Electrotechnical Committee for Conformity
Testing to Standards (IECEE) established the CB Scheme for
Electrical Equipment. It is an international system for acceptance
of tests. The CB Scheme or CB Agreement is a multilateral
agreement among participant countries and certification organisations utilising a CB Test Report issued by one of these organisations. The CB Scheme is very fast growing and it is one of the
most beneficial solutions for trading in global markets. The network under the CB Scheme comprises today 58 product certification organisations, National Certification Bodies (NCB) and 140
testing laboratories (CBTL) in 43 countries throughout America,
Europe, Asia, Australia and Africa. The CB Agreement can be
applied for products for which IEC standards exist and are accepted by the IECEE for use within the Scheme. The products are
tested to these IEC standards and most often also to the declared
national differences of the various member countries. National differences are special requirements that the IECEE, CB Scheme
permits each country to adopt to address local safety concerns.
The Keymark is a voluntary mark. It is the only pan-European
safety mark for household appliances. It provides the customers in
Europe with a clear and simple message that the product complies with a harmonized European safety standard. Regulatory
authorities will see it as supporting CE Marking. A product carrying
the Keymark does not have to be submitted for additional verification to certification bodies in other European countries. Up to now,
appliances approved in different European countries have carried different national marks even though the assessment systems are broadly similar. Keymark offers the alternative of being a
single common mark recognised in all these countries. A single
mark removes doubt and confusion.
VDE Association for Electrical, Electronic and Information
Applies to electrotechnical products, including products according
to the Appliance and Product Safety Act (GPSG) and Medical
Product Act (MPG). The VDE Mark indicates conformity with the
VDE Standards or European or internationally harmonised standards, and confirms compliance with protective requirements of
the applicable EU Directive(s).
GS Mark German Safety approval mark
The GS mark is a voluntary mark. Products are evaluated according to the Low Voltage Directive, EMC Directive, Machinery
Directive or national standards. The evaluation is based on the
German Safety of Equipment Act (GPSG). It is a recognized mark
for products such as office equipment, household appliances and
industrial equipment, and is widely accepted throughout Europe.
The GS Mark signals to the buyer, customer and consumer that
the product, as well as the user manual and production process,
has been tested by an authorized institution such as Berufsgenossenschaft, VDE, and TUEV, and is supported by regular surveillance audits. Because a representative sample of the product
has been evaluated, tested and approved for safety, there is a
high acceptance of the GS Mark by EU consumers.
The Nordic reciprocal agreement for the mutual acceptance of test
results between signatory Nordic countries avoids the need for
multiple tests to European Standards to obtain other Nordic
national safety marks. The D-Mark, FIMKO, SEMKO and NEMKO
marks form one test program.
Swiss Safety Mark
By using the voluntary Swiss Safety Mark which is in full conformity with the Ordinance for Electrical Low-Voltage Products (NEV),
the manufacturer who places a low voltage electrical product on
the market indicates to the consumer that it complies with the
legal regulations on electrical safety and electromagnetic compatibility.
An application from manufacturer or vendor is based on attestations of conformity or test reports from accredited testing bodies,
or international certificates.
The significance of the Safety Mark is ultimately in the customers
interest as well as in the manufacturers and distributors, based on
CCC Safety Mark (China)
As of August 1, 2003 the symbols CCIB and CCEE, typically
found on products, were combined and replaced by the CCC
Mark. China merged its two compulsory inspection systems, one
to check contents of products for import and export, and the other
for quality control, into a single procedure as part of its commitment for entry into the World Trade Organization.
GOST R Safety Mark (Russia)
The GOST-R mark is a mandatory certification mark for all electrical products to be shipped into Russia. The laws of the Russian
Federation prescribe conformity of products to the Russian safety
standards (GOST-R).
The GOST-R certificate is issued following technical evaluation of
products to ensure compliance to Russian safety regulations.
NOM Safety Mark (Mexico)
The Mexican government requires that all electronic products be
tested for safety in Mexico for the mandatory NOM Mark
(Normality of Mexico). Only test reports accredited by SINALP
(Sistema Nacional de Acreditamieno de Laboratorios de Pruebas),
National System of Accreditation of Testing Laboratories, are
PSB Safety Mark (Singapore)
The PSB Mark is issued by the Singapore Productivity and
Standards Board. The Safety Authority (PSB) is the statutory body
appointed by the Ministry of Trade and Industry to administer the
regulations. The Safety Authority has amended the regulations,
requiring all registered controlled goods to be individually marked
with the SAFETY Mark. Manufacturers, importers, traders, retailers and advertisers who are involved in supplying controlled goods
must ensure that their obligations under the regulations are fulfilled.
CE European Union Safety Compliance Declaration
CE stands for Communauts Europennes, the European
Communities. CE-marking was introduced by the European
Commision and it is the Commision who also set the conditions for
use of the CE-mark within the different CE-mark directives. With
the CE-marking the manufacturer or his representative within the
EU declare that the individual product is in compliance with the
general safety regulations in the CE-marking directives.
Manufacturers outside the EU can appoint European importers as
their representative in the EU. The CE-mark is mandatory in the
Council Directive 95 / 63 / EC of December 1995 amending Directive 89 / 655 /
EEC concerning the minimum safety and health requirements for the use of
work equipment by workers at work (second individual Directive within the
meaning of Article 16 (1) of Directive 89 / 391 / EEC);
Council Directive 2006 / 95 / EC Electrical Equipment designed for use within
certain voltage limits (The Low Voltage Directive)
Council Directive 98 / 37 / EC The Machinery Directive
IEC 60364-7 Low-voltage electrical installations, Part 7: Requirements for special installations or locations Section 704: Construction and demolition site
installations; Section 706: Conducting Locations with Restricted Movement
IEC 60335 1:2006 Household and similar Electrical Appliances Safety
Canadian Electrical Code, Part 1, Part 2
National Standard of Canada CAN / CSA C22.2 No. 71-1-M89
EUSA Safe Practice Guide: Low Voltage Applications
Ontario Electrical Safety Report 2006 (Electrical Safety Authority)
EN 60745 Hand-held Motor-operated Electric Tools Safety
EN 61029 1:2003 Safety of Transportable Motor-Operated Electric Tools
ET 215: 2008 Guide to the Maintenance, Inspection and Testing of Portable
Equipment in the Workplace Electro-Technical Council of Ireland
Regulations 2007 HSA Ireland
Ordinance concerning the protection of Safety and Health in the Provision of
Work Equipment and its use at Work 2004. (BetrSichV)
Safety on Construction Sites HSE UK
(HSE / UK)
Code of Practice for the In-service Inspection and Testing of Electrical
Equipment 2007 (IEE / UK)
IEV 60050 826 International Electrotechnical Vocabulary Part 826: Electrical
Gustav-Heinemann-Ufer 130 | 50968 Kln | Germany
Tel.: +49 (0)221 3778-6007 | Fax: +49 (0)221 3778-196007
ISBN 978-3-937824-02-4
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