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Low-voltage switchgear and controlgear. Part 2. Circuit-breakers
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Concentric-lay-stranded copper-clad steel (bimetallic) conductors. Specifications
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Fire-hazard testing. Test methods. Bad-connection test with heaters
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Electric and optical fibre cables. Test methods for non-metallic materials. Part 504. Mechanical tests. Bending tests at low temperature for insulation and sheaths
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