EN 60079-6:2015

Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"

Publication date:   May 17, 2016

General information

60.60 Standard published   Dec 11, 2015

CENELEC

CLC/TC 31 Electrical apparatus for potentially explosive atmospheres

European Norm

29.260.20   Electrical apparatus for explosive atmospheres

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Scope

IEC 60079-6:2015 specifies the requirements for the design, construction, testing and marking of Ex Equipment and Ex Components with type of protection liquid immersion "o" intended for use in explosive gas atmospheres. Ex Equipment and Ex Components of type of protection liquid immersion "o" are either:

- Level of Protection "ob" (EPL "Mb" or "Gb") or

- Level of Protection "oc" (EPL "Gc"). For Level of Protection "ob", this standard applies where the rated voltage does not exceed 11 kV r.m.s. a.c. or d.c. For Level of Protection "oc", this standard applies where the rated voltage does not exceed 15 kV r.m.s. a.c. or d.c. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence. This fourth edition cancels and replaces the third edition, published in 2007. This edition constitutes a technical revision. The significant changes with respect to the previous edition are:

- Edition 4 represents a major technical revision of the requirements for oil immersion "o" and should be considered as introducing all new requirements. The normal "Table of Significant Changes" has not been included for this reason. In particular:

- The requirements for oil immersion "o" have been redefined into liquid immersion, levels of protection "ob" and "oc" as recommended by the responses to 31/715/DC;

- The ability to protect sparking contacts has been added to both "ob" and "oc". Additional requirements have been introduced for the protective liquid.
Keywords: Ex Equipment and Ex Components with type of protection liquid immersion "o"

Related legislation

Legislation related to this standard

94/9/EC

Equipment and protective systems intended for use in potentially explosive atmospheres (ATEX)

Harmonized/Supporting
2014/34/EU

Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)

Harmonized/Supporting

Life cycle

PREVIOUSLY

WITHDRAWN
EN 60079-6:2007

NOW

PUBLISHED
EN 60079-6:2015
60.60 Standard published
Dec 11, 2015

CORRIGENDA / AMENDMENTS

IN_DEVELOPMENT
EN 60079-6:2015/FprA1:2019