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Electrical apparatus for explosive gas atmospheres. Part 2. Pressurized enclosures 'p'
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Ropes of wires for autotractor electrical equipment. General specifications
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Short-circuits in electrical installations. Calculation methods in alternating current electrical installations with voltage above 1 kV
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Revers pipe fitting for thermal power-stations electric stations. Types and main parameters
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Mean frequency static transducer for electrothermy. Basic parameters
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