IEC 60331-1-2009 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 not exceeding 20mm. IEC 60331-1-2009 在火焰条件下电缆的线路完整性试验--第1部分：额定电压0.6/1.0kV及以下、总直径大于20mm电缆在温度不低于830℃冲击火焰下的试验方法
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