CEN/TC 270/WG 2 - Internal combustion engines for use in potentially explosive atmospheres

This European standard specifies the safety requirements and/or measures to remove the hazards and limit the risks on reciprocating internal combustion compression ignition engines of group I category M2 for use in underground workings susceptible to firedamp and/or combustible dust hereinafter referred to as engines. The standard does not define requirements relating to the driven machinery.

This European standard specifies the safety requirements and/or measures to remove the hazards and limit the risks on reciprocating internal combustion compression ignition engines hereinafter referred to as "engines" of group II categories 2 and 3 for use in potentially explosive atmospheres of flammable gas and vapour. This European standard does not apply to flammable gas and vapour atmospheres containing carbon disulphide (CS2).

This European standard specifies the safety requirements and/or measures to remove the hazards and limit the risks on reciprocating internal combustion compression ignition engines of group II categories 2 and 3 for use in flammable dust atmospheres. The standard does not define requirements relating to the driven machinery. These requirements can be found in the appropriate application standards.