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Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries). Part 2. General protection requirements
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Rotating electrical machines. Measurement of the winding resistance of an a.c. machine without switching-off net work
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Protective maximum current relays low voltage. General technical requirements
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Low-voltage electrical installations. Part 1. Fundamental principles, assessment of general characteristics, definitions
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Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods
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Vented nickel-iron prismatic rechargeable single cells. General specifications
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