产品标准 本产品按GB12706《额定电压35kV及以下铜芯、铝芯塑料绝缘电力电缆》和GB12666《电线电缆燃烧实验方法》标准生产，同时还可根据用户需要按电工委员会推荐的IEC标准、英国BS标准、德国DIN标准、美国ICEA标准及日本JIS标准生产。 The product is manufactured according to the standard of GB12706 and GB12666 or IEC,BS,DIN,ICEA,and JIS upon request.
铜芯耐火电缆适用范围 本产品适用于工频额定电压0.6/1kV及以下配电线路或工业装置中有耐火要求的固定敷设场所使用。 The product is suitable for use in power distribution lines or fixed installations with rated power-frequency voltage up to and including 0.6/1kV.
铜芯耐火电缆使用特性 ·工频额定电压U0/U:0.6/1kV。 Rated power-frequency voltage U0/U:0.6/1kV. ·电缆导体的zui高允许长期工作温度（PVC/XLPE）:70℃/90℃. Max.permissible continuous operating temperature of conductor （PVC/XLPE）: 70℃/90℃ ·短路时（zui长持续时间不超过5s）电缆导体zui高允许温度 PVC:导体截面≤300mm2-160℃ 导体截面＞300mm2-140℃ XLPE:250℃ Max.short-circuit temperature of the conductor shall not exceed（5s maxiumduration）: PVC:cross-section of conductor≤300mm2-160℃ cross-section of conductor＞300mm2-140℃ XLPE:250℃ ·电缆敷设时环境温度应不低于0℃ The ambient temperature under installation should not below 0℃ ·电缆的弯曲半径：多芯电缆不小于电缆外径15倍，单芯电缆不小于电缆外径20倍。 The bending radius of a single-core cable should not less than 20 times of the cable diameter. The bending radius of multicore-cable should not less than 15 times of the cable diameter.
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