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ГОСТ 20689-80

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ГОСТ 20803-81

ГОСТ 20690-75

Электрооборудование переменного тока на напряжение 750 кВ. Требования к электрической прочности изоляции
Electrical equipment for a.c. voltage 750 kV. Requirements for electric strength of insulation

SKU: 2760 Category: GOST - State standards

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