EN 60079-6:2007
(Main)Explosive atmospheres - Part 6: Equipment protection by oil immersion "o"
Explosive atmospheres - Part 6: Equipment protection by oil immersion "o"
This part of IEC 60079 specifies the requirements for the construction and testing of oil-immersed electrical equipment, oil-immersed parts of electrical equipment and Ex components in the type of protection oil immersion 'o', intended for use in explosive gas atmospheres. The significant changes with respect to the previous edition are: all requirements for third-party certification removed; added requirements for external connections; collected all marking requirements in the marking clause, and added requirements for instructions.
Explosionsfähige Atmosphäre - Teil 6: Geräteschutz durch Ölkapselung "o"
Atmosphères explosives - Partie 6: Protection du matériel par immersion dans l'huile "o"
La présente partie de la CEI 60079 spécifie les exigences de construction et d'essais du matériel électrique immergé dans l'huile, des parties de matériel immergé dans l'huile et de composants Ex, de mode de protection 'o', destinés à être utilisés dans des atmosphères explosives gazeuses. Les modifications importantes par rapport à l'édition précédente sont: toutes les exigences relatives à la certification par une tierce partie ont été supprimées; des exigences ont été ajoutées pour les connexions externes; toutes les exigences relatives au marquage ont été placées dans l'article ' Marquage ', et des exigences ont été ajoutées pour les instructions.
Eksplozivne atmosfere - 6. del: Zaščita opreme s potopitvijo v olje "o" (IEC 60079-6:2007)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2007
1DGRPHãþD
SIST EN 50015:2000
(NVSOR]LYQHDWPRVIHUHGHO =DãþLWDRSUHPHVSRWRSLWYLMRYROMHR ,(&
Explosive atmospheres - Part 6: Equipment protection by oil immersion "o"
Explosionsfähige Atmosphäre - Teil 6: Geräteschutz durch Ölkapselung "o"
Atmospheres explosives - Partie 6: Protection du matériel par immersion dans l'huile "o"
Ta slovenski standard je istoveten z: EN 60079-6:2007
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 60079-6
NORME EUROPÉENNE
May 2007
EUROPÄISCHE NORM
ICS 29.260.20 Supersedes EN 50015:1998
English version
Explosive atmospheres -
Part 6: Equipment protection by oil immersion "o"
(IEC 60079-6:2007)
Atmosphères explosives - Explosionsfähige Atmosphäre -
Partie 6: Protection du matériel Teil 6: Geräteschutz
par immersion dans l'huile "o" durch Ölkapselung "o"
(CEI 60079-6:2007) (IEC 60079-6:2007)
This European Standard was approved by CENELEC on 2007-05-01. 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 60079-6:2007 E
Foreword
The text of document 31/673/FDIS, future edition 3 of IEC 60079-6, prepared by IEC TC 31, Equipment
for explosive atmospheres, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 60079-6 on 2007-05-01.
This European Standard supersedes EN 50015:1998.
This standard is to be used in conjunction with EN 60079-0:2006.
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) 2008-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2010-05-01
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 60079-6:2007 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60079-6:2007
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) 2)
IEC 60079-0 - Electrical apparatus for explosive gas EN 60079-0 2006
atmospheres -
Part 0: General requirements
1) 2)
IEC 60079-7 - Explosive atmospheres - EN 60079-7 2007
Part 7: Equipment protection by Increased
safety "e"
1) 2)
IEC 60079-11 - Explosive atmospheres - EN 60079-11 2007
Part 11: Equipment protection by intrinsic
safety "i"
1) 2)
IEC 60079-15 - Electrical apparatus for explosive gas EN 60079-15 2005
atmospheres -
Part 15: Construction, test and marking of
type of protection "n" electrical apparatus
1) 2)
IEC 60156 - Insulating liquids - Determination of the EN 60156 1995
breakdown voltage at power frequency -
Test method
1) 2)
IEC 60247 - Insulating liquids - Measurement of relative EN 60247 2004
permittivity, dielectric dissipation factor (tan d)
and d.c. resistivity
1) 2)
IEC 60296 - Fluids for electrotechnical applications - EN 60296 2004
Unused mineral insulating oils for + corr. September 2004
transformers and switchgear
IEC 60529 1989 Degrees of protection provided by enclosures EN 60529 1991
(IP Code) + corr. May 1993
A1 1999 A1 2000
1)
IEC 60588-2 - Askarels for transformers and capacitors - - -
Part 2: Test methods
1) 2)
IEC 60836 - Specifications for unused silicone insulating EN 60836 2005
liquids for electrotechnical purposes
1) 2)
ISO 2719 - Determination of flash point - EN ISO 2719 2002
Pensky-Martens closed cup method
1)
ISO 3016 - Petroleum products - Determination of pour - -
point
1)
Undated reference.
2)
Valid edition at date of issue.
Publication Year Title EN/HD Year
1) 2)
ISO 3104 - Petroleum products - Transparent and EN ISO 3104 1996
opaque liquids - Determination of kinematic
viscosity and calculation of dynamic viscosity
- 5 - EN 60079-6:2007
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 essential requirements out of those given in Annex II of the EC Directive 94/9/EC:
– ER 1.0.1 to ER 1.0.6
– ER 1.1.3
– ER 1.2.1 (partly), ER 1.2.6
– ER 1.3.1
– ER 1.5.1, ER 1.5.4
– ER 1.6.4
– ER 2.0.2.1
– ER 2.2.1.1, ER 2.2.1.2, ER 2.2.1.3 (partly)
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
60079-6
INTERNATIONAL
Troisième édition
STANDARD
Third edition
2007-03
Atmosphères explosives –
Partie 6:
Protection du matériel par immersion
dans l’huile «o»
Explosive atmospheres –
Part 6:
Equipment protection by oil immersion «o»
© IEC 2007 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
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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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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60079-6 © IEC:2007 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9
2 Normative references .9
3 Terms and definitions .11
4 Constructional requirements .13
4.1 General .13
4.2 Protective liquid.13
4.3 Group I equipment.13
4.4 Deterioration of the protective liquid .13
4.5 Guarding of fasteners.15
4.6 Protective level indication.15
4.7 Limiting temperature.17
4.8 Immersion depth.17
4.9 Capillary or siphon action .17
4.10 Devices for draining of liquid .17
4.11 Sealed enclosures.17
4.12 Non-sealed enclosures.17
4.13 External connections .19
5 Verifications and tests .19
5.1 Type tests .19
5.2 Routine tests .19
6 Marking .21
7 Instructions.21
Annex A (informative) Introduction of an alternative risk assessment method
encompassing "equipment protection levels" for Ex equipment .23
Table A.1 – Traditional relationship of EPLs to Zones (no additional risk assessment).27
Table A.2 – Description of risk of ignition protection provided .29
60079-6 © IEC:2007 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPLOSIVE ATMOSPHERES –
Part 6: Equipment
protection by oil immersion "o"
FOREWORD
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