This part of IEC 60079 specifies requirements for the construction, testing and marking for
Group II electrical equipment with type of protection, "n" intended for use in explosive gas
atmospheres. This standard applies to electrical equipment where the rated voltage does not
exceed 15 kV r.m.s. a.c. or d.c.
This part of IEC 60079 is applicable to non-sparking electrical equipment and also to
electrical equipment with parts or circuits producing arcs or sparks or having hot surfaces
which, if not protected in one of the ways specified in this standard, could be capable of
igniting a surrounding explosive gas atmosphere. This standard describes several different
methods by which this can be achieved which may be combined with other methods described
in IEC 60079-0.
This standard supplements and modifies the general requirements of IEC 60079-0, except as
indicated in Table 1. Where a requirement of this standard conflicts with a requirement of
IEC 60079-0, the requirement of this standard takes precedence.
BS EN 60079-15:2010 history
2015BS EN 60079-7:2015 Explosive atmospheres. Equipment protection by increased safety "e"
2010BS EN 60079-15:2010 Explosive atmospheres. Part 15: Equipment protection by type of protection "n"
2005BS EN 60079-15:2005 Electrical apparatus for explosive gas atmospheres. Construction, test and marking of type of protection "n" electrical apparatus
2003BS EN 60079-15:2003 Electrical apparatus for explosive gas atmospheres. Type of protection "n"
1999BS EN 50021:1999 Electrical apparatus for potentially explosive atmospheres - Type of protection “n”
1997BS 5000-16:1997 Rotating electrical machines of particular types or for particular applications - Rotating electrical machines with type of protection 'N'