江苏春晨电缆有限公司生产YCPWK卷筒抗拉电缆，抗拉卷筒电缆，优选镀锌抗拉软钢丝绳、芳纶纤维、旗杆绳等多种材质组合设计电缆的承力抗拉元件，保障和增强电缆的抗拉性能。保障电缆能够承受电缆自身重量，以及机械应力，随卷筒/卷盘装置的长时间曲卷拖拽移动使用。
The tensile drum cable is made of galvanized tensile soft steel wire rope, aramid fiber, flagpole rope and other materials to ensure and enhance the tensile performance of the cable. Ensure that the cable can bear the weight of the cable itself, as well as the mechanical stress, and move with the long-time winding of the drum / ，220kV及以下绝缘工具实验电压
Test voltage of insulating tools of 220kV and below
220kV及以下带电作业工具只采用工频短时间1分钟耐压试验，不做操作冲击试验，这样完全可以满足操作过电压水平的要求。
YCPWK卷筒抗拉电缆
For live working tools of 220kV and below, only power frequency short-time 1 minute voltage withstand test is adopted, and no operation impact test is conducted, so that the requirements of operation overvoltage level can be fully met.
预防性试验电压应按运行相电压乘以过电压倍数得来的，对尾数做适当处理，其计算公式为：
The preventive test voltage shall be obtained by multiplying the maximum operating phase voltage by the multiple of overvoltage, and the mantissa shall be properly treated. The calculation formula is as follows:
U=UxgK1
U=UxgK1
公式中：
Formula:
Uxg：系统运行相电压（有效值）；
UXg: maximum phase voltage of system operation (effective value);
K1：过电压倍数（35~63kV，K1取4.0；1110~220kV，K1取3.0）。
K1: overvoltage multiple (35-63kv, K1 = 4.0; 1110-220kv, K1 = 3.0).
如：
Such as:
