SS 254-14:2005
[Withdrawn]
Electrical apparatus for explosive gas atmospheres - Electrical installations in hazardous areas (other than mines) (Users can refer directly to relevant parts of IEC 60079)
...transformers and safety isolating transformers Requirements
IEC 61024-1:1990, Protection of structures against lightning Part 1: General principles
IEC 61024-1-1:1993, Protection of structures against lightning Part 1: General principles
Sectio...
...truction, installation and use of
apparatus
NOTE For the purposes of this standard, an area is a three-dimensional region or space...
...4
non-hazardous area
area in which an explosive gas atmosphere is not expected to be present in quantities such as
to require special precautions for the construction, installation and use of apparatus
3...