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United power system and isolated power systems. Operational dispatch management. Relay protection and automation. Technical accounting and operations analysis. General requirements
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Test methods specific to filling compounds of electric cables. Drop-point. Separation of oil. Lower temperature brittleness. Total acid number. Absence of corrosive components. Permittivity at 23°C. D.c. receptivity at 23°C and 100°C
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Adjustable speed electrical power drive systems. Part 1. General requirements. Rating specifications for low voltage adjustable speed d.c. power drive systems
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Electric and optical fibre cables. Test methods for non-metallic materials. Part 301. Electrical tests. Measurement of the permittivity at 23 °C of filling compounds
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Explosive atmospheres. Part 18. Equipment protection by encapsulation 'm'
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Radio-frequency cable type PK 50-33-17. Specifications
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