BS EN 50016:2002
Electrical apparatus for potentially explosive atmospheres - Pressurized apparatus "p"

Standard No.

BS EN 50016:2002

Release Date

2002

Published By

British Standards Institution (BSI)

Status

Be replaced 2004-07

Replace By

BS EN 60079-2:2004

Latest

BS EN 60079-2:2014

BS EN 60079-2:2008

Scope

1 This European Standard specifies the requirements for the construction and testing of pressurized and purged electrical apparatus and "Ex" components forming part of the pressurized apparatus, with type of protection 'p', intended for use in potentially explosive atmospheres of gas vapour and mist. 2 This European Standard supplements EN 50014 in so far as it applies to pressurized and purged electrical apparatus with type of protection 'p'. 3 This European Standard is applicable to electrical equipment and components of Group I Category M2 and of Group IIG Category 2 using the technique of pressurize and purge. NOTE In this European Standard, the word "apparatus" has the same meaning as the word "equipment" in Directive 94/9/EC. 4 This European Standard includes the requirements for the construction of the enclosure and its associated components, including, if any, the inlet and outlet ducts for the protective gas, and for the safety provisions and devices necessary for the type of protection pressurization 'p'. 5 This European Standard specifies the requirements for pressurized enclosures with or without an internal source of release, with the exceptions given in 1.7 and 1.8. 6 This European Standard specifies requirements for pressurized enclosures containing an unlimited source of release of flammable gas or vapour only where the unlimited source of release is from the surface of a liquid. 7 This European Standard does not contain requirements for pressurized rooms or analyser houses (for which another standard is in preparation). 8 This European Standard does not contain the requirements for pressurized enclosures where, in a containment system with limited or unlimited release there is: a) air with an oxygen content greater than normal, or b) oxygen in combination with inert gas in a proportion greater than 21 %. 9 Due to the safety factors incorporated in the type of protection the uncertainty of measurement inherent in good quality, regularly calibrated measurement equipment is considered to have no significant detrimental effect and need not be taken into account when making the measurements necessary to verify compliance of the apparatus with the requirements of this standard.

BS EN 50016:2002 history

• 2015 BS EN 60079-2:2014 Explosive atmospheres. Equipment protection by pressurized enclosure "p"
• 2008 BS EN 60079-2:2007 Explosive atmospheres - Part 2: Equipment protection by pressurized enclosure "p"
• 2004 BS EN 60079-2:2004 Electrical apparatus for explosive gas atmospheres - Pressurized enclosures "p"
• 2002 BS EN 50016:2002 Electrical apparatus for potentially explosive atmospheres - Pressurized apparatus "p"