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Lamp controlgear. Part 2-7. Particular requirements for battery supplied electronic controlgear for emergency lighting (self-contained)

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Enamelled round winding wires. Method of the refrigerants resistance test

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Secondary cells and batteries containing alkaline or other non-acid electrolytes. Secondary lithium cells and batteries for use in industrial applications

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General purpose oil-immersed power transformers. Permissible loads

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Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 22. Particular requirements for connecting boxes and enclosures

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Electrical installations of buildings. Part 4. Protection for safety. Measures of protection against overcurrent

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