ATEX and DSEAR: Technical standards
Q1 What are the standards for the methods of protection for electrical equipment?
A1
- BS EN 60079:2006 Electrical apparatus for explosive gas atmospheres Part 0: General requirements.
- BS EN 60079:2004 Electrical apparatus for explosive gas atmospheres Part 1: Flameproof enclosures ‘d’.
- BS EN 60079:2004 Electrical apparatus for explosive gas atmospheres Part 2: Pressurized enclosures ‘p’.
- BS EN 60079:2007 Electrical apparatus for explosive gas atmospheres Part 7: Increased safety ‘e’.
- BS EN 60079:2007 Electrical apparatus for explosive gas atmospheres Part 11: Protection by intrinsic safety ‘i’.
- BS EN 60079:2005 Electrical apparatus for explosive gas atmospheres Part 15: Type of protection ‘n’.
- BS EN 60079:2004 Electrical apparatus for explosive gas atmospheres Part 18: Construction, test and marking of type of protection encapsulation ‘m’ electrical apparatus.
- BS EN 60079:2007 Electrical apparatus for explosive gas atmospheres Part 28: Protection of equipment and transmission systems using optical radiation.
- BS EN 50015:1998 Electrical apparatus for potentially explosive atmospheres. Oil immersion ‘o’.
- BS EN 50017:1998 Electrical apparatus for potentially explosive atmospheres. Powder filling ‘q’.
- BS EN 50020:2002 Electrical apparatus for potentially explosive atmospheres. Intrinsic safety ‘i’.
Q2 What are the standards for mechanical protection concepts?
A2 The following standards have been published to date, or where indicated are due for publication shortly, these are:
- BS EN 13463:2001 Non-electrical equipment for potentially explosive atmospheres. Part 1: Basic method and requirements.
- BS EN 13463:2004 Non-electrical equipment for potentially explosive atmospheres Part 2: Protection by flow restricting enclosure ’fr’.
- BS EN 13463:2005 Non-electrical equipment for potentially explosive atmospheres Part 3: Protection by flameproof enclosure ’d’. (Standard in preparation)
- BS EN 13463:2003 Non-electrical equipment for potentially explosive atmospheres. Part 5: Protection by constructional safety ‘c’.
- BS EN 13463:2005 Non-electrical equipment for potentially explosive atmospheres Part 6: Protection by control of ignition source ’b’.
- BS EN 13463:200? Non-electrical equipment for potentially explosive atmospheres Part 7: Protection by pressurization ’p’. (Standard in preparation)
- BS EN 13463:2003 Non-electrical equipment for potentially explosive atmospheres Part 8: Protection by liquid immersion ’k’.
Other parts of this standard are currently under development.
Q3 Where can I get a list of standards which have been harmonised under ATEX?
A3 A list of standards which have been harmonised is available.
Products complying with any of these standards carry the presumption of conformity with the directive. In the absence of an appropriate EU harmonised standard then products compliant with the EPS Regulations are conformity assessed against the EHSRs utilising, in order of preference, existing European, national or other technical standards. There is a list of ongoing work of the standards bodies relating directly to ATEX. The Cenelec website contains more information on the numerical series IEC 60079.
Note that all these lists are subject to regular change.
