UL Standard for Safety Electrical Apparatus for Explosive Gas Atmospheres - Part 6: Oil-Immersion "o"
|Publication Date:||9 March 2007|
This part of IEC 79 specifies the requirements for the construction and testing of oil-immersed electrical apparatus, oil-immersed parts of electrical apparatus and Ex components in the type of protection "o", intended for use in potentially explosive atmospheres of gas, vapour and mist.
This standard supplements IEC 79-0, the requirements of which apply to oil-immersed electrical apparatus.
This standard is applicable to electrical apparatus and parts of electrical apparatus which are not ignition capable in normal operation. Compliance of the electrical apparatus is to be assessed against IEC 79-15 except for those paris designed to comply with IEC 79-11.
NOTE - This standard assumes that the electrical apparatus immersed in the protective liquid is fixed in its operating position in accordance with the installation instructions.
The U.S. version of IEC 60079-6 does not include requirements for Group I electrical apparatus
Where references are made to other IEC 60079 standards, the referenced requirements found in these standards shall apply as modified by any applicable U.S. National Differences.