Steel tape armored power cable

This product is suitable for power transmission systems with a rated voltage of U0/U ranging from 3.6/6kV to 26/35kV. The main installation locations include underground direct burial, pipe threading, ground cable trenches, underground tunnels, cable interlayers in substations, or local open-air installation, etc. The rated voltage of the cable should be suitable for the operating conditions of the system where the cable is located. To facilitate the selection of cables, the system is classified into three series:

Class A: When any phase conductor comes into contact with the ground or the grounding conductor, it can be separated from the system within 1 minute.

Class B: It can operate for a short time in the event of a single-phase ground fault. According to the provisions of JB/T8996, the duration of a ground fault should not exceed 1 hour. For the cables included in this standard, a longer operating time with a fault is allowed, but under no circumstances should it exceed 8 hours. The annual duration of a ground fault should not exceed 125 hours.

Class C: This includes systems that do not fall under Class A or Class B.

It should be recognized that when a system grounding fault cannot be immediately and automatically eliminated, the excessively high electric field intensity applied to the cable insulation during the fault period will, to a certain extent, shorten the cable's lifespan. If the system is expected to frequently operate under persistent ground fault conditions, it should be classified as Class C.

普通型：

YJV22、YJLV22—交聚聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆

YJV23、YJLV23—交联聚乙烯绝缘钢带铠装聚乙烯护套电力电缆

YJV32、YJLV32—交联聚乙烯绝缘钢丝铠装聚氯乙烯护套电力电缆

YJV33、YJLV33—交联聚乙烯绝缘钢丝铠装聚乙烯护套电力电缆

阻燃型：

根据GB/T19666标准规定，阻燃型电缆在普通型号前加ZA、ZB、ZC、ZD。

1、正常运行时电缆导体的工作温度不超过90℃。

2、短路时（持续时间不超过5s）电缆导体的温度不超过250℃。

3、电缆敷设时环境温度应不低于0℃。

4、电缆的弯曲半径应符合以下规定：

     单芯电缆：无铠装电缆安装时弯曲半径不小于电缆外径的20倍，有铠装电缆安装时弯曲半径不小于电缆外径的15倍。

     多芯电缆：无铠装电缆安装时弯曲半径不小于电缆外径的15倍，有铠装电缆安装时弯曲半径不小于电缆外径的12倍。

产品额定电压

3.6/6kV、6/6kV、6/10kV、8.7/10kV、8.7/15kV、12/20kV、18/30kV、21/35kV、26/35kV