Russian standards PDF
Rotating electrical machines. Part 30-1. Efficiency classes of line operated AC motors (IE code)
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Rotating electrical machines. Part 3. Specific requirements for synchronous generators driven by steam turbines or combustion gas turbines
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International Electrotechnical Vocabulary. Part 444. Elementary relays
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Explosive atmospheres. Part 30-1. Electrical resistance trace heating. General and testing requirements
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Power capacitors for induction heating installations. Part 1. General
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Miniature fuses. Part 4. Universal modular fuse-links for through-hole and surface mount types
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