Amendment 1 - Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 4: Stationary use at non-weatherprotected locations— 8 стр.
Classification of environmental conditions. Classification of groups of environmental parameters and their severities, Stationary use at non-weatherprotected locations— 30 стр.
Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV. General requirements— 18 стр.
Railway applications. Mounted parts of the traction transformer and cooling system. Gas and liquid actuated (Buchholz) relay for liquid immersed transformers and reactors with conservator for rail vehicles— 20 стр.
