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United power system and isolated power systems. Relay protection and automation. Automatic emergency control of electric power systems. Local automation devices for preventing stability violations. Norms and requirements

Document status: Replaced by GOST R 59979-2025

Tools for straight bevel outers. Design and dimension

Document status: Active

International electrotechnical vocabulary. Part 445. Time relays

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Well portlandcements. Specifications

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Hydro power plants. Hydrogenerators. Delivery technical requirements

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Tin bronze. Method for the determination of manganese

Document status: Active