EN 60079-30-1:2007

SLOVENSKI STANDARD
01-december-2007
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SIST EN 62086-1:2005
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Explosive atmospheres - Part 30-1: Electrical resistance trace heating - General and
testing requirements
Explosionsfähige Atmosphäre - Teil 30-1: Elektrische Widerstands-Begleitheizungen -
Allgemeine Anforderungen und Prüfanforderungen
Atmospheres explosives - Partie 30-1: Traçage par résistance électrique - Exigences
générales et d'essais
Ta slovenski standard je istoveten z: EN 60079-30-1:2007
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60079-30-1
NORME EUROPÉENNE
April 2007
EUROPÄISCHE NORM
ICS 29.260.20 Supersedes EN 62086-1:2005

English version
Explosive atmospheres -
Part 30-1: Electrical resistance trace heating -
General and testing requirements
(IEC 60079-30-1:2007)
Atmosphères explosives -  Explosionsfähige Atmosphäre -
Partie 30-1: Traçage Teil 30-1: Elektrische
par résistance électrique - Widerstands-Begleitheizungen -
Exigences générales et d'essais Allgemeine Anforderungen
(CEI 60079-30-1:2007) und Prüfanforderungen
(IEC 60079-30-1:2007)
This European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60079-30-1:2007 E
Foreword
The text of document 31/661/FDIS, future edition 1 of IEC 60079-30-1, prepared by IEC TC 31,
Equipment for explosive atmospheres, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 60079-30-1 on 2007-03-01.
This European Standard supersedes EN 62086-1:2005.
The general revisions and updating to produce EN 60079-30-1:2007, with respect to EN 62086-1:2005,
are a result of national comments received.
The main technical differences, apart from the general revision and updating of EN 62086-1:2005, are as
follows:
– the inclusion of thermal safety requirements for the manufacturer’s quality programme;
– the inclusion of a 14 day water resistance test;
– the further harmonization of this standard with several national standards.
This standard is to be used in conjunction with EN 60079-30-2:2007, Explosive atmospheres – Part 30-2:
Electrical resistance trace heating – Application guide for design, installation and maintenance.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-03-01
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive ATEX (94/9/EC). See Annex ZZ.
Annexes ZA and ZZ have been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60079-30-1:2007 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60079-30-1:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

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

1)
IEC 60050-151 - International Electrotechnical Vocabulary - -
(IEV) -
Part 151: Electrical and magnetic devices

IEC 60079-0 (mod) 2004 Electrical apparatus for explosive gas EN 60079-0 2006
atmospheres -
Part 0: General requirements
2)
IEC 60079-7 2001 Electrical apparatus for explosive gas EN 60079-7 2003
atmospheres -
Part 7: Increased safety "e"
IEC 60079-10 2002 Electrical apparatus for explosive gas EN 60079-10 2003
atmospheres -
Part 10: Classification of hazardous areas

1) 3)
IEC 60079-30-2 - Explosive atmospheres - EN 60079-30-2 2007
Part 30-2: Electrical resistance trace heating -
Application guide for design, installation and
maintenance
1) 3)
IEC 60364-5-55 - Electrical installations of buildings - HD 60364-5-559 2005
(mod) Part 5-55: Selection and erection of electrical
equipment - Other equipment
1)
Undated reference.
2)
EN 60079-7 is superseded by EN 60079-7:2007, which is based on IEC 60079-7:2006.
3)
Valid edition at date of issue.

Annex ZZ
(informative)
Coverage of Essential Requirements of EC Directives

This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers only the
following relevant essentiel requirements out of those given in Annex II of the EC Directive 94/9/EC

– ER 1.0.1, ER 1.0.2, ER 1.0.4, ER 1.05, 1.06 (partly)
– ER 1.1
– ER 1.2.1 (partly), ER 1.2.2 (partly), ER 1.2.5, ER 1.2.8
– ER 1.3.1 (partly), ER 1.3.3, ER 1.3.4 (partly),
– ER 1.4.1 (partly), ER 1.4.2
– ER 1.6.4
– ER 2.2.1.1 to ER 2.2.1.3
– ER 2.3.1.1, ER 2.3.1.2
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directive concerned.

WARNING: Other requirements and other EC Directives may be applicable to the products falling within
the scope of this standard.
NORME CEI
INTERNATIONALE
IEC
60079-30-1
INTERNATIONAL
Première édition
STANDARD
First edition
2007-01
Atmosphère explosives –
Partie 30-1:
Traçage par résistance électrique –
Exigences générales et d’essais

Explosive atmospheres –
Part 30-1:
Electrical resistance trace heating –
General and testing requirements
© IEC 2007 Droits de reproduction réservés ⎯ Copyright - all rights reserved
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utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
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60079-30-1 © IEC:2007 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9

1 Scope.11
2 Normative references .11
3 Terms and definitions.11
4 General requirements .21
4.1 General .21
4.2 Terminations and connections .23
4.3 Circuit protection requirements for branch circuits .23
4.4 Control and temperature requirements .23
5 Testing .25
5.1 Type tests .25
5.2 Routine tests .51
6 Marking .51
6.1 Product markings for trace heaters.51
6.2 Markings for field-assembled components .53
6.3 Installation instructions.53

Figure 1 – Flammability test.29
Figure 2 – Impact test .31
Figure 3 – Cold bend test – Type test .35
Figure 4 – Integral components resistance to water test.37
Figure 5 – Verification of rated output .41
Figure 6 – Verification of sheath temperature using system approach .47
Figure 7 – Maximum sheath temperature using the product classification approach .49

Table 1 – Test voltages for the dielectric test.27

60079-30-1 © IEC:2007 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPLOSIVE ATMOSPHERES –
Part 30-1: Electrical resistance trace heating –
General and testing requirements

FOREWORD
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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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