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D.c. supplied electronic ballasts for tubular fluorescent lamps. Performance requirements
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United power system and isolated power systems. Operative-dispatch management. Relay protection and automation. Interaction of actors, consumers of electrical energy in creating (modernization) and the exploitation. General requirements
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Water and steam heatexchangers. Types, basic parameters and sizes
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Low-voltage switchgear and controlgear. Part 1. General rules
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Risk management. Protection against lightning. Part 1. General principles
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Explosive atmospheres. Part 32-2. Electrostatics hazards. Tests
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