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IEC 60331-4 2024 Tests for electric cables under fire conditions Circuit integrity Part 4 Test method for fire with shock at a temperature of at least 830 C for cables of rated voltage higher than 1
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IEC 60331-4 2024 Tests for electric cables under fire conditions Circuit integrity Part 4 Test method for fire with shock at a temperature of at least 830 C for cables of rated voltage higher than 1
