由于电缆深埋地下，并且长度较大，电缆故障探测起来也较量贫困。虽然现在有电缆故障测试仪的辅助，可是由于电缆铺设的情形重大，举行探测事情的时间，也是有许多需要注重的事项。那么地埋故障探测都需要注重哪些事项？

Because the cable is deeply buried underground and has a large length, it is also troublesome to detect cable faults. Although there is now a cable fault tester to assist, but because of the complex environment of cable laying, there are many things to pay attention to when carrying out detection work. So what should be paid attention to when detecting buried faults?

先需要列清晰故障可能爆发的缘故原由及电缆的基本情形，例如是运行爆发故障照旧预试爆发故障，是新电缆照旧运行时间很长的电缆，电缆的或许长度，电缆中心有没有讨论，电缆以前有没有泛起过故障，电缆是直埋照旧在电缆沟铺设，以及电缆类型等等。

First of all, it is necessary to list the possible causes of the fault and the basic situation of the cable, such as whether the fault is caused by operation or pre-test, whether it is a new cable or a cable that has been running for a long time, the approximate length of the cable, whether there is a joint in the middle of the cable, whether the cable has failed before, whether the cable is directly buried or laid in the cable trench, and the type of cable, etc.

测试职员须注重操作，每次与电缆接线前，将电缆各相线与地用短蹊径毗连放电，放电时须先将短蹊径一端接地，另一端划分接电缆各相线放电。

The tester must pay attention to the safety of operation. Before each connection with the cable, connect each phase line of the cable to the ground with a short line for discharge. When discharging, one end of the short line must be grounded first, and the other end must be connected to each phase line of the cable for discharge.

关于其它电器，例如电容器，试验变压器等，接线及去掉毗连线前也要注重先放电接线。总之，要形成操作习惯，不怕贫困，每次操作前，先注重操作电器有无与电路毗连，先放电再操作。

For other electrical appliances, such as capacitors, test transformers, etc., pay attention to discharge wiring before wiring and removing the connecting wire. In short, we should form operating habits and be not afraid of trouble. Before each operation, we should first pay attention to whether the operating appliances are connected to the circuit, and then discharge before operation.

用高压闪络法测试时，不管电缆故障是高阻故障，照旧低阻故障，均可用高压冲闪法举行测试。关于用低压脉冲能够直接测试出故障距离的低阻或断线故障，一样平常也要用高压冲闪举行验证测试及故障点的准确定点。

When testing with high-voltage flashover method, whether the cable fault is high resistance fault or low resistance fault, the high-voltage flashover method can be used for testing. For the low resistance or broken line fault that can directly test the fault distance with low-voltage pulse, it is generally necessary to use high-voltage impulse to verify the test and the precise location of the fault point.

别的地埋探测举行时，统一电缆沟内其它电缆应暂时断电，考试端和被测电缆用户端要有专人看守，用户端电缆与室内供电缆路要彻底划分，确保人身和用电电器。更多相关内容就来我们网站详细相识吧。

In addition, when the buried detection is carried out, other cables in the same cable trench should be temporarily powered off, the test end and the user end of the tested cable should be guarded by a specially assigned person, and the user end cable should be completely separated from the indoor power supply cable to ensure personal safety and the safety of electrical appliances. Come to our website for more relevant content Learn more.