BS EN 13463-1:2009 specifies the basic method and requirements for design, construction, testing and marking of non-electrical equipment intended for use in potentially explosive atmospheres in air of gas, vapour, mist and dusts. Such atmospheres can also exist inside the equipment. In addition, the external atmosphere can be drawn inside the equipment by natural breathing produced as a result of fluctuations in the equipment?s internal operating pressure, and/or temperature.

BS EN 13463-1:2009 is valid for atmospheres having pressures ranging from 0,8 bar to 1,1 bar and temperatures ranging from - 20 C to + 60 C., i.e. equipment built to BS EN 13463-1:2009 will be satisfactory to any service conditions within this range unless otherwise specified.

NOTE 1 The requirements of BS EN 13463-1:2009 can also be helpful for the design, construction, testing and marking of equipment intended for use in atmospheres outside the validity range stated above. In this case however, the ignition hazard assessment, ignition protection provided, additional testing (if necessary), manufacturer?s technical documentation and instructions to the user, should clearly demonstrate and indicate the equipment?s suitability for the conditions it may encounter. It should also be recognized that changes in temperature and pressure can have a significant influence on ignitability.

BS EN 13463-1:2009 does not cover additional marking for equipment intended for use outside the scope of its validity such as an oxygen-enriched atmosphere.

BS EN 13463-1:2009 is also applicable for the design, construction, testing and marking of components, protective systems, devices and assemblies of these products which have possible ignition sources and are intended for use in potentially explosive atmospheres.

BS EN 13463-1:2009 specifies the requirements for the design and construction of equipment, intended for use in potentially explosive atmospheres in conformity with all categories of Group I and II. BS EN 13463-1:2009 can be supplemented by European Standards concerning the specific types of ignition protection.

NOTE 2 These are given below:

EN 13463-2, Non-electrical equipment for use in potentially explosive atmospheres - Protection by flow restricting enclosure (fr)

EN 13463-3, Non-electrical equipment for use in potentially explosive atmospheres - Protection by flameproof enclosure (d)

EN 13463-5, Non-electrical equipment for use in potentially explosive atmospheres - Protection by constructional safety (c)

EN 13463-6, Non-electrical equipment for use in potentially explosive atmospheres - Protection by control of ignition sources (b)

EN 60079-2, Electrical apparatus for explosive gas atmospheres - Pressurised enclosures "p" (Protection by pressurization described in EN 60079-2 can also be used for non-electrical equipment.)

EN 13463-8, Non-electrical equipment for use in potentially explosive atmospheres - Protection by liquid immersion (k)

EN 50303, Group I, category M1 equipment intended to remain functional in atmospheres endangered by firedamp and/or coal dust.

NOTE 3 Equipment designed and constructed in accordance with this European Standard for a particular category may be used in areas requiring a category with a higher level of safety by the application of additional explosion prevention and/or protection methods. Such applications are not covered in this standard.

NOTE 4 Such explosion prevention and/or protection measures include for example inerting, suppression, venting or containment as described in EN 1127-1, for Group II equipment or for example by dilution, drainage, monitoring and shutdown as described in EN 1127-2 for Group I equipment. Such explosion protection methods are outside the scope of this European Standard.

NOTE 5 Although the normal atmospheric conditions above give a temperature range for the atmosphere of - 20 C to + 60 C the ambient temperature range for the equipment is - 20 C to + 40 C unless otherwise specified and marked, see 6.2.2.



Cross References:
EN 582
EN 1127-1:2007
EN 1127-2
EN 13237:2003
EN 13463-6:2005
EN 14986
EN 50303:2001
EN 60079-0:2006
IEC 60079-0:2004
ISO 1817:2005
CLC/TR 50404:2003
EN 12874
EN 13463-2
EN 13463-3
EN 13463-5
EN 13463-8
EN 14522
EN 15198
EN 60079-1
IEC 60079-1:2007
EN 60079-2
IEC 60079-2:2007
EN 60079-26
IEC 60079-26:2006
EN 60079-28
IEC 60079-28:2006
EN 61241-1
IEC 61241-1:2004
EN ISO 6507-1
ISO 6507-1:2005
EN ISO 12100-1:2003
ISO 12100-1:2003
ISO 281
IEC/TR 60079-12
IEC/TR 60079-20
EN 62262
EN 1755
EN ISO 6507-4
ISO 6507-4:2005
EN 13501-1
IEC 60695
94/9/EC

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