Safety of machinery. Electrical equipment of machines. Requirements for HV equipment for voltages above 1000 V a.c. or 1500 V d.c. and not exceeding 36 kV— 62 стр.
High-voltage switchgear and controlgear. High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above— 28 стр.