CLC/TS 62081:2002

SLOVENSKI STANDARD
01-april-2003
Arc welding equipment - Installation and use
Arc welding equipment - Installation and use
Lichtbogenschweißeinrichtungen - Errichtung und Betrieb
Matériel de soudage à l'arc - Installation et utilisation
Ta slovenski standard je istoveten z: CLC/TS 62081:2002
ICS:
25.160.30 Varilna oprema Welding equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION  CLC/TS 62081
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION July 2002

ICS 25.160.30 Replaces HD 407 S1:1980 and HD 427 S1:1981

English version
Arc welding equipment —
Installation and use
(IEC 62081:1999)
Matériel de soudage à l'arc —  Lichtbogenschweißeinrichtungen —
Installation et utilisation Errichtung und Betrieb
(CEI 62081:1999) (IEC 62081:1999)

This Technical Specification was approved by CENELEC on 2002-07-02.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and
to make the TS available promptly at national level in an appropriate form. It is permissible to keep
conflicting national standards in force.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. CLC/TS 62081:2002 E
Foreword
The text of the Technical Specification IEC 62081:1999, prepared by IEC TC 26, Electric welding, was
submitted to the questionnaire and vote procedure and was approved by CENELEC as CLC/TS 62081
on 2002-07-02 without any modification.
This Technical Specification supersedes HD 407 S1:1980 and HD 427 S1:1981.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2002-10-01
__________
Endorsement notice
The text of the Technical Specification IEC 62081:1999 was approved by CENELEC as a Technical
Specification without any modification.
__________
- 3 - CLC/TS 62081:2002
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This Technical Specification incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this Technical Specification only when incorporated in it by amendment
or revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60050-195 1998 International Electrotechnical - -
Vocabulary (IEV)
Chapter 195: Earthing and protection
against electric shock
IEC 60204-1 1997 Safety of machinery - Electrical EN 60204-1 1997
equipment of machines
Part 1: General requirements
IEC 60364-4-41 1992 Electrical installations of buildings HD 384.4.41 S2 1996
(mod) Part 4: Protection for safety
Chapter 41: Protection against electric
shock
IEC 60947-2 1995 Low-voltage switchgear and controlgear EN 60947-2 1996
Part 2: Circuit-breakers
IEC 60974-1 1998 Arc welding equipment EN 60974-1 1998
Part 1: Welding power sources
IEC 60974-11 1992 Part 11: Electrode holders EN 60974-11 1995
(mod)
IEC 60974-12 1992 Part 12: Coupling devices for welding EN 60974-12 1995
(mod) cables
IEC 61008 Series Electrical accessories – Residual EN 61008 Series
(mod) current operated circuit-breakers
without integral overcurrent protection
for household and similar uses
(RCCB's)
IEC 61009 Series Electrical accessories – Residual EN 61009 Series
(mod) current operated circuit-breakers with
integral overcurrent protection for
household and similar uses (RCBO's)

IEC 61140 1997 Protection against electric shock - EN 61140 2001
Common aspects for installation and
equipment
TECHNICAL IEC
SPECIFICATION TS 62081
First edition
1999-05
Arc welding equipment –
Installation and use
© IEC 1999 Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
S
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

62081/TS © IEC:1999 – 3 –
CONTENTS
Page
FOREWORD 5
..........................................................................................................................
Clause
1 Scope 7
..............................................................................................................................
2 Normative references 7
.......................................................................................................
3 Definitions 9
........................................................................................................................
4 Installation 11
.....................................................................................................................
4.1 General 11
.................................................................................................................
4.1.1 Selection of supply cable and protection against overload 11
..........................
4.1.2 Supply disconnecting device 11
......................................................................
4.1.3 Emergency stopping device 11
.......................................................................
4.1.4 Protection against electric shock from the mains supply 13
.............................
4.2 Welding circuit 13
......................................................................................................
4.2.1 Isolation from the mains supply 13
.................................................................
4.2.2 Welding voltage supply 13
..............................................................................
4.2.3 Connection between the welding power source and the work piece 13
............
4.2.4 Earthing of the work piece 15
.........................................................................
4.2.5 Location of gas cylinders 15
...........................................................................
5 Use 17
................................................................................................................................
5.1 General requirements 17
............................................................................................
5.2 Connection between several welding power sources 17
..............................................
5.3 Inspection and maintenance of the welding installation 17
..........................................
5.4 Disconnection of welding power sources and/or welding circuits 17
............................
5.5 Guards 19
..................................................................................................................
5.6 Information for operators 19
.......................................................................................
5.7 Protective measures 19
.............................................................................................
5.7.1 Extraneous conductive parts in the welding area 19
........................................
5.7.2 Protection against electric shock 19
...............................................................
5.8 Isolation of the welding circuit from the work piece and earth when not in use 19
........
5.9 Voltage between electrode holders or torches/guns 21
...............................................
5.10 Welding in an environment with increased hazard of electric shock 25
........................
5.11 Use of shoulder slings 27
...........................................................................................
5.12 Welding at elevated positions 27
................................................................................
Annex A – Hazards connected with arc welding 29
.....................................................................
Bibliography 41
.........................................................................................................................

62081/TS © IEC:1999 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ARC WELDING EQUIPMENT –
Installation and use
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports, technical specifications or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this technical specification may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
specification when
the required support cannot be obtained for the publication of an International Standard,
•
despite repeated efforts, or
the subject is still under technical development or where, for any other reason, there is the
•
future but no immediate possibility of an agreement on an International Standard.
Technical specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC 62081, which is a technical specification, has been prepared by technical committee 26:
Electric welding.
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
26/136/CDV 26/143 + 143A/RVC
Full information on the voting for the approval of this technical specification can be found in the
report on voting indicated in the above table.

62081/TS © IEC:1999 – 7 –
ARC WELDING EQUIPMENT –
Installation and use
1 Scope
This technical specification is applicable to the installation and industrial and professional use
of welding power sources, equipment and accessories for arc welding and allied processes.
2 Normative references
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this technical specification. For dated references, subsequent
amendments to, or revisions of, any of these publications do not apply. However, parties to
agreements based on this technical specification are encouraged to investigate the possibility
of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of IEC
and ISO maintain registers of currently valid International Standards.
IEC 60050-195:1998,
International Electrotechnical Vocabulary – Part 195: Earthing and
protection against electric shock
IEC 60204-1:1997, Electrical equipment of industrial machines – Part 1: General requirements
IEC 60364-4-41:1992, Electrical installations of buildings – Part 4: Protection for safety –
Chapter 41: Protection against electric shock
IEC 60947-2:1995, Low-voltage switchgear and controlgear – Part 2: Circuit breakers
IEC 60974-1:1998, Arc welding equipment – Part 1: Welding power sources
IEC 60974-11:1992, Arc welding equipment – Part 11: Electrode holders
IEC 60974-12:1992, Arc welding equipment – Part 12: Coupling devices for welding cables
IEC 61008 (all parts), Residual current operated circuit-breakers without integral overcu
...