KS C IEC 60331-1-2013(2018) Tests for electric cables under fire conditions-Circuit integrity-Part 1:Test method for fire with shock at a temperature of at least 830 ℃ for cables of rated voltage up to and including 0.6/1.0 kV a
2013KS C IEC 60331-1:2013 Tests for electric cables under fire conditions-Circuit integrity-Part 1:Test method for fire with shock at a temperature of at least 830 ℃ for cables of rated voltage up to and including 0.6/1.0 kV and with an overall diameter exceeding 20 mm