nh-kvv22 铠装耐火控制电缆 zr-kvv22  铠装阻燃控制电缆

产品名称: 耐火电缆 产品特点: 0.6/1kv聚氯乙烯交联聚乙烯绝缘耐火电力电缆 pvc（xlpe）insulatedfire-resistant power cable 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*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zui高允许*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. 电缆的型号type of cable