nhvv电缆
产品
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《电线电缆实验》生产，同时还可根据用户需要按电工会的iec、英国bs、德国din、美国icea及jis生产。
the product is manufactured according to the standard of gb12706&gb12666/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/fixed installations with rated power-frequency voltage up to&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℃
·短路时长时间不超过5s电缆导体高允许温度
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
结构尺寸及主要技术参数construction&main technical data
·0.6/1kv单芯耐火电力电缆nh(b)-vv nha-vv nh(b)-yjv nha-yjv
0.6/1kv single-core fire power cable
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