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Safety of transformers, reactors, power supply units and combinations thereof. Part 2-10. Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V
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Revers pipe fitting for thermal power-stations electric stations. Types and main parameters
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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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Tramway and trolleybus overhead trolley wire supporting devices. General specifications
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Electric lamps and starters. General requirements for export
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