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Mine installation earthing. Technical requirements and test methods
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Auxiliaries for lamps. A.c.-Supplied electronic ballasts for tubular fluorescent lamps. Performance requirements
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Industrial gas-using equipment. Air heaters. Test methods
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Explosive atmospheres. Part 28. Protection of equipment and transmission systems using optical radiation
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Reciprocating internal combustion engine driven alternating current generating sets. Part 1. Application, ratings and performance
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