In the process of developing submarine cable laying installation for Shengli Oil Field, a certain problem has occurred with overcurrent tripping during switching on of step up transformer.
在为胜利油田研制海底电缆铺设装置过程中，曾发生升压变压器合闸时过电流跳闸问题。
It is used for power cable installation and also for laying control cable.
它既适用于动力电缆的安装，也适用于控制电缆的敷设。
For laying indoors, in trenches, in ducts and down well , able tobear heavier pulling force, andfor fixed installation.
敷设在室内、电缆沟、管道、竖井等能承受较大机械拉力等固定场合。
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