Electrical apparatus for explosive gas atmospheres - Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)— 37 стр.
Electrical apparatus for explosive gas atmospheres. Electrical resistance trace heating, Application guide for design, installation and maintenance— 44 стр.
Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining; German version EN 1127-2:2014— 38 стр.
Electrical apparatus for explosive gas atmospheres. Electrical resistance trace heating, Application guide for design, installation and maintenance— 44 стр.