Russian standards PDF
Methods environmental dynamic testing for machines, instruments and other articles. Time-history and sine-beat vibration tests
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Explosive atmospheres. Part 17. Electrical installations inspection and maintenance
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AC motor capacitors. Part 2. Motor start capacitors
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Electrical relays. Part 5. Insulation coordination for measuring relays and protection equipment. Requirements and tests
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Safety of household and similar electrical appliances. Part 2-89. Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant unit or compressor
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Coupling capacitors and capacitor dividers. Part 1. General rules
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