Russian standards PDF

Safety of machinery. Guards. General requirements for the design and construction of fixed and movable guard

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Rotating electrical machines. Part 2-2. Specific methods for determining separate losses of large machines from tests

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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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