Low-voltage electrical installations. Part 4-42. Protection for safety. Protection against thermal effects
Document status: Active
Electrical equipment and installation for a.c. voltages from 1 to 750 kV. General methods of dielectric tests
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Auxiliaries for lamps. A.C. supplied electronic ballasts for tubular fluorescent lamps. General and safety requirements
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Electrical insulation systems of electrical equipment. Evaluation and classification
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Electroinsulating board for transformers and apparatus charged with oil. Specifications
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