建筑施工中使用的小型流动性机械采用多芯皮电缆作为电源线。这种电缆绝缘性能性好,质地柔软,但拉拽或被砸压容易发生断芯故障,而外部往往不带痕迹。以前检查故障是用手模或用摇表、万能表逐段检查,这种办法效率低,同时要损坏电缆。往往影响正常施工。根据北京饭店新楼工程的需要,我们改装了一种电缆故障探测仪。改装后的 The small liquidity machinery used in the construction of buildings uses multi-core leather cables as power cables. This kind of cable has good insulating properties and soft texture, but it is easy to break the core due to pulling or being pressed, and the outside is often without marks. In the past, the inspection of the fault was performed by hand or with a rocker or universal meter. This method was inefficient and at the same time damaged the cable. It often affects normal construction. According to the needs of Beijing Hotel New Building Project, we modified a cable fault detector. Modified