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Low-voltage switchgear and controlgear. Part 7-1. Ancillary equipment. Terminal blocks for cooper conductors
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Common test methods for insulating and sheathing materials of electric and optical cables. Part 1-4. Methods for general application. Test at low temperature
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Mechanical and steam mechanical injectors. Types and basic parameters. General technical requirements
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Source units of ionizing radiation for radioisotope instruments relay type. General specifications
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Power cables with extruded insulation and their accessories for rated voltages above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV). Test methods and requirements
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Low-voltage switchgear and controlgear. Mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations
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