IEC 60079-18:2014

IEC 60079-18:2014 is available as IEC Standards+ 60079-18:2014 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60079-18:2014 gives the specific requirements for the construction, testing and marking of electrical   equipment, parts  of electrical equipment and  Ex components with the type of protection encapsulation "m" intended for use in explosive gas atmospheres or explosive dust atmospheres. This part applies only for encapsulated electrical equipment, encapsulated parts of electrical equipment and     encapsulat ed Ex components (hereinafter  always referred to as "m" equipment) where the rated voltage does not exceed 11 kV. The application of electrical equipment in atmospheres, which may contain explosive gas       as well  as  combustible dust simultaneously,  may require additional  protective    measures. This  standard does not  apply to dusts of explosives, which   do not require atmospheric oxygen for combustion,  or to pyrophoric substances. This standard does not take account of any risk due to an  emission of flammable or toxic gas from the dust. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this   standard conflicts with a    requirement  of  IEC 60079-0, the requireme nt of this standard takes precedence.  This International Standard is  to be  used in conjunction with IEC  60079-0, Explosive    atmospheres - Part 0: Equipment-General requirements.This fourth edition cancels  and replaces the third edition of IEC 60079-18:2009,   and constitutes a     technical revision. Please refer  to the foreword  of the document  for   a listing of the technical changes with respect  to the previous edition. Keywords: encapsulation "m", explosive gas  atmospheres, explosive dust atmospheres