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Asynchronous electrical machines of power from 1 to 400 kW inclusive. Motors. Efficiency and power factors

Document status: Active

Permanent magnets for use in electrical products. General technical requirements

Document status: Active

Specified time relays for industrial use. Part 1. Requirements and tests

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Explosive atmospheres. Part 26. Equipment with equipment protection level (EPL) Ga

Document status: Cancelled

Electrical apparatus for explosive gas atmospheres. Part 1-1. Flameproof enclosures 'D'. Method of test for ascertainment of maximum experimental safe gap

Document status: Replaced by GOST 31610.20-1-2020

Surge overvoltages and surge protection in low-voltage a.c. power systems. General basic information

Document status: Active