- 名称：阻燃耐火电缆
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国际电工委员会推荐的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.
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.
使用特性
·工频额定电压u0/u:0.6/1kv。
rated power-frequency voltage u0/u:0.6/1kv.
·电缆导体的最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（最长持续时间不超过5s）电缆导体最高允许温度
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.
电缆的型号type of cable
型号 | 产品名称 |
zr-nhvv | 阻燃聚氯乙烯绝缘和护套耐火控制电缆 |
zr-nhff | 氟塑料绝缘和护套耐火控制电缆 |
zr-nhvdvd | 低烟低卤阻燃聚氯乙烯绝缘和护套耐火控制电缆 |
zr-nhydyd | 低烟无卤阻燃聚烯烃绝缘和护套耐火控制电缆 |
备注：铠装电缆型号后加22 | |
