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Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 21. Particular requirements for boxes and enclosures with provision for suspension means
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Plugs, socket-outlets and couplers for industrial purposes. Part 1. General requirements
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Enamelled round winding wires. Method of the cut-through test
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Nuclear power plants. Instrumentation and control important to safety. Methods for assessing the performance of safety system instrument channels
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Rubber insulated cables of rated voltages up to and including 450/750 V. Test methods
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