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Natural circulation stationary power steam boilers. General technical requirements
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Electrical insulation systems. General requirements for methods of accelerated test for thermal endurance
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Low - frequency, pulse transformers and rectifier filter chokes. Methods of measuring electric parameters
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Hook stamped cable terminals, with closed tail, attached to conductor core. Construction and sizes
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Converter transformers and reactors. General specifications
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Risk management. Protection against lightning. Part 1. General principles
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