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IEC 60466:1974 ed1.0

Заменен
High-voltage insulation-enclosed switchgear and controlgear — 68 стр.
Specifies requirements for factory-assembled insulation enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 38 kV for indoor installation, and for service frequencies up to and including 60 Hz.