the world of electrical safety - · pdf filethe world of electrical safety ... - 65 standards...

THE WORLD OF

ELECTRICAL SAFETY

Groupe SICAME

ELECTRICAL SAFETY EQUIPMENT

Live Working and International

Standards

Application to Electrical Systems and

Installations

By Corinne PEIGNE

and Christian ATLANI

Live Working and International Standards

In the field of electrical systems and installations, a lot of

international standards are used today

According to the hierarchy of electrical standards we should

use either:

- 65 Standards from International Electrotechnical

Commission (IEC)

- 10 Standards from European Committee for

Electrotechnical Standardization (CENELEC)

- Standards from National Committees when the product is

not covered by IEC nor CENELEC.


When there is a need of using a new tool not already

standardized it is also possible to use other products made

according to technical specifications from Manufacturers

or End Users, when no standards are available, but in most

cases those specific specifications are based on parts of

international standards.

For example: insulating stool


A number of standards are applicable to live working:

- Those coming from Committees IEC TC 78 - Live Working

or CLC TC 78 – Equipment and tools for live working

- And from the International Electrotechnical Vocabulary and

its IEC 60050-651: 2014, Part 651: Live working

-- Or PPE standards from ISO or CEN completing the list of

electrical PPE


Safety principles for the workers when operating live working

in Electrical distribution and transmission systems or

installations:

The basic requirements are published in the standard EN

50110-1:2013, Operation of electrical installations – Part 1

General Requirements; they are the following:

- Protection against electrical shock

- Protection against electrical short-circuit

The corresponding national regulation are listed in EN

50110-2: 2009, Operation of electrical installations – Part 2

National Annexes

There is no general International standard on this subject.


In order to work in safer conditions a clear and defined

organization of work specifying the role of the main operators

was selected and must be used. They are identified as:

- The person responsible for an electrical installation

- The nominated person in control of an electrical installation

during work activities

- The nominated person in control of work activity

- The worker


A clear Vocabulary is also useful, such as:

- IEC 60050-651: 2014 – Live working

- IEC 60743: 2013 – Live working – Terminology for tools,

devices and equipment

- An IEC Logo called “double triangle”, which means

“suitable for live working”, IEC 60417- 5216:2002-10

- An IEC Logo called “protection against the thermal effect

of the electrical arc”, IEC 60417- 6353:2016


An adequate training for the personnel based on for example :

- IEC 61472: 2013 – Live working – Minimum approach

distances. A new part 2 is under process and will cover the

range of 1 kV to 72,5 kV

- On utilization of tools, devices and equipment according to

IEC 61477:2009, Live working – Minimum requirements for

the utilization of tools, devices and equipment

- On conformity assessment of tools, devices and equipment

according to IEC 61318:2007, Live working – Conformity

assessment applicable to tools, devices and equipment.


The use of specific tools, devices and equipment for

manipulating or work on bare conductors such as:

- Insulating sticks and attached devices according to IEC

60832–1:2010, Live working – Insulating sticks and

attachable devices - Part 1: Insulating sticks .




- IEC 60832-2: 2010, Live working – Insulating sticks and

attachable devices - Part 2 , Live working - – Attachable

devices;

-



- IEC 60832-2: 2010, Live working – Insulating sticks and

attachable devices - Part 2 , Live working - – Attachable

devices;

-




- The multipurpose insulating sticks used for maneuvers,

changing fuses and rescue according to EN 50508:2009,

Multipurpose insulating sticks for electrical operations on

high voltage installations;




- Telescopic sticks according to IEC 62193:2003, Live

working – Telescopic sticks and telescopic measuring

sticks.


The insulating sticks are made of foam filed tubes according

to

IEC 60855-1:2009, Live working – Insulating foam filled

tubes and rods – Part 1: Tubes and rods of circular section

And of hollow tubes according to:

IEC 61235:1993, Live working – Insulating holow tubes for

electrical purposes

and rods – Part 1: Tubes and rods of circular saction

elescopic sticks and telescopic measuring sticks.


The associated saddles, stick clamps and accessories to be

fitted on insulating sticks according to

IEC 61236:2010, Live working – Saddle their accessories,

stick clamps ad their accessories


And

The insulating ropes according to IEC 62192:2009, Live

working – Insulating ropes;

The hand tools according to IEC 60900: 2012, Live working –

Hand tools for use up to 1 000 V AC and 1 500 DC


A series of detecting devices such as devices detecting

absence or presence of voltage and phase comparison

according to:

- IEC 61243-1: 2003, Live working – Voltage detectors Part

1: Capacitive type to be used for voltages exceeding 1kV

AC;

-




according to:


2: Resistive type to be used for voltages of 1kV to 36 kV;




according to:


3: Two pole low voltage type


A series of detecting devices such as devices detecting the

absence or presence of voltages and others for phase

comparison:

- IEC 61243-5: 1997, Live working – Voltage detectors –

Part 5: Voltage detecting system (VDS)

- IEC 62271-206: 2011, High-voltage switchgear and

control gear – Part 206: Voltage presence indicating

systems for rated voltages above 1 kV and up to and

including 52 kV


And phase comparators

- IEC 61481-1: 2014, Live working – Phase comparators –

Part 1 – Capacitive type to be used for voltages

exceeding 1 kV AC

- IEC 61481-2: 2014, Live working – Phase comparators –

Part 2 – Resistive type to be used for voltages from 1 kV

to 36 kV AC


Tools devices and equipment for positioning the workers

during live working according to:

- IEC 61478: 2013, Live working –

Ladders of insulating material




- EN 50528: 2010, Insulating ladders

for use on or near low voltage

electrical installations

-




- EN 50374: 2004, Conductor cars




- IEC 61057:1991, Aerial devices with insulating boom used

for live working

- IEC TS 61813:2000, Live working – Care, maintenance and

in service testing of aerial devices with insulating booms;


Tools devices and equipment for the workers during live

working according to:

- IEC 62237: 2003, Live working – Insulating hoses with

fittings for use with hydraulic tools and equipment


The respect of the protection of the worker during live working

against electrical shocks according to:

- IEC 61111: 2009, Live working – Electrical insulating matting




- IEC 61112: 2009, Live working – Electrical insulating

blankets




- IEC 61229: 1993, Rigid protective covers for live working

on AC installations




- IEC 61479: 2001, Live working – Flexible covers (line

hoses) of insulating material


The respect of the protection of the worker itself during live

working against electrical shocks according to:

- IEC 60903: 2014, Live working – Electrical insulating

gloves

- IEC 60984: 2014, Live working Electrical insulating sleeves


The respect of the protection of the worker itself during live

working against electrical shocks according to:

- EN 50286: 1999, Electrical insulating protective clothing for

low voltage installations

- EN 50321: 1999, Electrically insulating footwear for working

on low voltage installations

- EN 50365: 2002, Electrically insulating helmets for use on

low voltage installations


The respect of the protection of the worker during live

working against the effects of an electrical arc according to

two test procedures :

- IEC 61482-1-1: 2009, Live working – Protective clothing

against the thermal hazards of an electrical arc –Part 1-1:

Test methods – Method 1: Determination of the arc rating

(ATPV or EBT50) of flame resistant material for clothing

- IEC 61482-1-2: 2104, Live working – Protective clothing

against the thermal hazards of an electrical arc –Part 1-2:

Test methods – Method 2: Determination of arc protection

class of material and clothing by using a constrained and

directed arc (box test).


The respect of the protection of the worker during live

working against the effects of an electrical arc according to:

- IEC 61482-2: 2009, Live working –

Protective clothing against the thermal

hazards of an electrical arc –

Part 2: Requirements


Other IEC standards for PPE against the effects of an

electrical arc are under consideration within IEC TC 78 such

as :

- Arc Protection for eye, face and head

- Arc Protection for hands


The use of other tools devices and equipment used for

earthing and short circuiting:

- IEC 61219: 1993, Live working –

Earthing or earthing and

short-circuiting equipment

using lances as

short-circuiting device –

Lance earthing;



earthing and short-circuiting:

- IEC 61230: 2008, Live working – Portable equipment for

earthing and short-circuiting.



earthing and short-circuiting

- EN 50340: 2010, Hydraulic cable cutting device - Devices

to be used on electrical installations with nominal voltage up

to AC 30 kV ;



stringing conductors:

- IEC TR 61328: 2003, Live working - Guidelines for

installation of transmission conductors - Stringing

equipment and accessories items;

- IEC TR 61911: 2003, Live working - Guidelines for

installation of distribution conductors - Stringing equipment

and accessories items;

- IEC TR 62263: 2005, Live working – Guidelines for the

installation and maintenance of optical fibre cables on

overhead power lines.


Example of bullwheel puller used for stringing conductors :


The use of other tools devices and equipment used for live

washing

EN 50186-1 :1998, Live washing systems for power

installations with nominal voltages above 1kV –Part 1 :

Common requirements and

EN 50186-2 :1998 Live washing systems for power

installations with nominal voltages above 1kV –Part 2:

National annexes


Conclusion: the use of such a set of International Standards

guaranty a good completion of the work in safe conditions

For your information:

List of IEC Standards, see web site: www.iec.ch

List of CENELEC standards, see web site:

www.cenelec.eu

Products according those standards see web site:

www.catuelec.com

http://www.cenelec.eu/


Thank you for your attention

This presentation was made by:

Christian ATLANI

Electrical safety expert

and

Corinne PEIGNE

Field expert

CATU Company (France)

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