Live working - Protective clothing against the thermal hazards of an electric arc - Part 2: Requirements

IEC 61482-2:2018 is applicable to protective clothing used in work where there is the risk of exposure to an electric arc hazard. This document specifies requirements and test methods applicable to materials and garments for protective clothing for electrical workers against the thermal hazards of an electric arc. Electric shock hazard is not covered by this document, which is applicable in combination with standards covering such hazards. Other effects than the thermal effects of an electric arc like noise, light emissions, pressure rise, hot oil, electric shock, the consequences of physical and mental shock or toxic influences are not covered by this document. Protection of eyes, face, head, hands and feet against electric arc hazard is not covered by this document. Requirements and tests to cover electric arc hazards to these parts of the body are under development. Protective clothing for work intentionally using an electric arc, e.g. arc welding, plasma torch, is not covered by this document. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: new definition for ELIM, ATPV and EBT as used in accordance with IEC 61482-1-1:–; new requirements for the thermal stability of the intermediate layers; additional material requirement for volume resistance; new test procedure for the thermal resistance of sewing threads and a new symbol for marking.
Key words: Electric Arc, Protective Clothing, Arc Thermal Protection

Travaux sous tension - Vêtements de protection contre les dangers thermiques d'un arc électrique - Partie 2: Exigences

IEC 61482-2:2018est applicable aux vętements de protection utilisés pour réaliser des travaux lorsqu’il y a un risque d’exposition à un danger d’arc électrique. Le présent document spécifie les exigences et les méthodes d’essai applicables aux matériaux et aux articles d’habillement utilisés pour les vętements de protection des travailleurs du domaine électrique contre les dangers thermiques d’un arc électrique. Les dangers de chocs électriques ne sont pas couverts par le présent document, qui est applicable en combinaison avec les normes couvrant ce type de dangers. Le présent document ne couvre que les effets thermiques d’un arc électrique, et ne couvre pas les effets comme le bruit, les émissions lumineuses, l’augmentation de la pression, l’huile chaude, le choc électrique, les conséquences d’un choc physique ou mental ou des effets toxiques lors d’un arc électrique. Le présent document ne couvre pas la protection des yeux, du visage, de la tęte, des mains et des pieds contre le danger d’arc électrique. Les exigences et les essais applicables aux dangers d’arc électrique concernant ces parties du corps sont en cours d’élaboration. Le présent document ne couvre pas les vętements de protection portés pour réaliser des travaux utilisant intentionnellement un arc électrique, par exemple le soudage à l’arc, l'usage d'une torche à plasma. Cette deuxième édition annule et remplace la première édition parue en 2009. La présente édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: nouvelle définition des valeurs d’ELIM, d’ATPV et d’EBT, telles qu’utilisées conformément à l’IEC 61482-1-1:
- nouvelles exigences relatives à la stabilité thermique des couches intermédiaires;
- exigence supplémentaire du matériau concernant la résistance électrique;
- nouvelle procédure d’essai pour la résistance thermique des fils de couture;
- nouveau symbole de marquage.
Mots-clés: arc électrique, vętements de protection, protection thermique contre l’arc

General Information

Status
Published
Publication Date
27-May-2018
Technical Committee
Drafting Committee
Current Stage
PPUB - Publication issued
Start Date
08-Jun-2018
Completion Date
28-May-2018
Ref Project

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IEC 61482-2 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Live working – Protective clothing against the thermal hazards of
an electric arc –
Part 2: Requirements
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

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IEC 61482-2 ®
Edition 2.0 2018-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Live working – Protective clothing against the thermal hazards of

an electric arc –
Part 2: Requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.220.40; 29.260.99 ISBN 978-2-8322-5757-9

– 2 – IEC 61482-2:2018 RLV © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms, definitions, symbols and units . 9
3.1 Terms and definitions . 9
3.2 Symbols and units. 12
4 Requirements . 12
4.1 General . 12
4.2 Design requirements for protective clothing . 12
4.3 General material requirements . 14
4.3.1 Heat resistance . 14
4.3.2 Volume resistance . 14
4.3.3 Limited flame spread of material . 14
4.3.4 Mechanical properties of woven outer material . 16
4.3.5 Dimensional change of material due to laundering and/or dry cleaning
of outer material . 16
4.4 Arc thermal resistance protection requirements . 16
4.4.1 General . 17
4.4.2 Arc rating . 18
4.4.3 Arc protection classes . 18
4.5 Marking . 18
4.6 Instructions for use . 18
5 Tests . 19
5.1 General . 19
5.1.1 Overview . 19
5.1.2 Test conditions . 19
5.1.3 Pre-treatment - Laundering and/or dry by cleaning . 19
5.2 Tests of design requirements for protective clothing . 19
5.2.1 General . 19
5.2.2 Garment construction and workmanship . 20
5.2.3 Size designation and ergonomics . 20
5.2.4 Ageing . 20
5.2.5 Threads, accessories and closures . 20
5.3 Tests of general material requirements . 21
5.3.1 Heat resistance . 21
5.3.2 Volume resistance . 21
5.3.3 Limited flame spread of material . 21
5.3.4 Mechanical properties of woven outer material . 21
5.3.5 Dimensional change due to laundering and/or dry cleaning of outer
material . 22
5.4 Tests of arc thermal resistance protection requirements . 22
5.4.1 Type tests . 22
5.4.2 Alternative means to arc thermal resistance protection test to fulfil
conformity assessment of protective clothing having completed the
production phase . 22
5.5 Marking . 23

5.5.1 Visual inspection . 23
5.5.2 Durability of marking . 23
5.6 Instructions for use . 23
6 Conformity assessment of protective clothing having completed the production
phase . 23
7 Modifications . 23
Annex A (normative) Marking and instructions for use . 24
A.1 Marking . 24
A.2 Instructions for use . 25
Annex (informative) Use and maintenance .
Annex B (normative) Type tests . 27
Annex C (normative) Classification of defects . 28
Annex D (informative) Rationale for the classification of defects . 31
Bibliography . 33

Table 1 – Single-layer material . 15
Table 2 – Outer and innermost layer materials . 15
Table 3 – Intermediate layer material not intended for arc thermal protection . 15
Table 4 – Intermediate layer material intended for arc thermal protection . 16
Table B.1 – List of type tests . 27
Table C.1 – Classification of defects and associated requirements and tests . 28
Table D.1 – Justification for the type of defect . 31

– 4 – IEC 61482-2:2018 RLV © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIVE WORKING –
PROTECTIVE CLOTHING AGAINST
THE THERMAL HAZARDS OF AN ELECTRIC ARC –

Part 2: Requirements
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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8) Attention is drawn to the Normative references
...


IEC 61482-2 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Protective clothing against the thermal hazards of an electric
arc –
Part 2: Requirements
Travaux sous tension – Vêtements de protection contre les dangers thermiques
d'un arc électrique –
Partie 2: Exigences
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

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The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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IEC 61482-2 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Protective clothing against the thermal hazards of an electric

arc –
Part 2: Requirements
Travaux sous tension – Vêtements de protection contre les dangers thermiques

d'un arc électrique –
Partie 2: Exigences
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.220.40; 29.260.99 ISBN 978-2-8322-5717-3

– 2 – IEC 61482-2:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols and units . 8
3.1 Terms and definitions . 8
3.2 Symbols and units. 11
4 Requirements . 11
4.1 General . 11
4.2 Design requirements for protective clothing . 11
4.3 General material requirements . 12
4.3.1 Heat resistance . 12
4.3.2 Volume resistance . 12
4.3.3 Limited flame spread of material . 12
4.3.4 Mechanical properties of outer material . 14
4.3.5 Dimensional change of material due to cleaning . 14
4.4 Arc thermal protection requirements . 14
4.4.1 General . 14
4.4.2 Arc rating . 14
4.4.3 Arc protection classes . 15
4.5 Marking . 15
4.6 Instructions for use . 15
5 Tests . 15
5.1 General . 15
5.1.1 Overview . 15
5.1.2 Test conditions . 16
5.1.3 Pre-treatment by cleaning . 16
5.2 Tests of design requirements for protective clothing . 16
5.2.1 General . 16
5.2.2 Garment construction and workmanship . 16
5.2.3 Size designation and ergonomics . 17
5.2.4 Ageing . 17
5.2.5 Threads and closures . 17
5.3 Tests of general material requirements . 17
5.3.1 Heat resistance . 17
5.3.2 Volume resistance . 17
5.3.3 Limited flame spread of material . 17
5.3.4 Mechanical properties of outer material . 18
5.3.5 Dimensional change due to laundering and/or dry cleaning . 18
5.4 Tests of arc thermal protection requirements . 18
5.4.1 Type tests . 18
5.4.2 Alternative means to arc thermal protection test to fulfil conformity
assessment of protective clothing having completed the production
phase . 18
5.5 Marking . 19
5.5.1 Visual inspection . 19

5.5.2 Durability of marking . 19
5.6 Instructions for use . 19
6 Conformity assessment of protective clothing having completed the production
phase . 19
7 Modifications . 19
Annex A (normative) Marking and instructions for use . 20
A.1 Marking . 20
A.2 Instructions for use . 21
Annex B (normative) Type tests . 22
Annex C (normative) Classification of defects . 23
Annex D (informative) Rationale for the classification of defects . 24
Bibliography . 26

Table 1 – Single-layer material . 12
Table 2 – Outer and innermost layer materials . 13
Table 3 – Intermediate layer material not intended for arc thermal protection . 13
Table 4 – Intermediate layer material intended for arc thermal protection . 13
Table B.1 – List of type tests . 22
Table C.1 – Classification of defects and associated requirements and tests . 23
Table D.1 – Justification for the type of defect . 24

– 4 – IEC 61482-2:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIVE WORKING –
PROTECTIVE CLOTHING AGAINST
THE THERMAL HAZARDS OF AN ELECTRIC ARC –

Part 2: Requirements
FOREWORD
1) The International Electrotechnical C
...

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