Electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 100% (V/V) methane in air— 8 стр.
Electrical apparatus for the detection and measurement of flammable gases. Performance requirements for group I apparatus indicating a volume fraction up to 100% methane in air— 10 стр.
High-voltage switchgear and controlgear. AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV— 94 стр.
Specification for electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 100 % (V/V) methane— 12 стр.
Specification for electrical apparatus for the detection and measurement of combustible gases. Performance requirements for Group I apparatus indicating up to 100 % (V/V) methane— 12 стр.
