欢迎来到滨州恒通电力器材有限公司网站,我们竭诚为您服务

行业新闻
当前位置:首页-资讯中心>行业新闻>地埋故障探测都需要注意哪些事项

地埋故障探测都需要注意哪些事项

来源:http://www.binzhouhengtong.com/ 发布时间:日期:2022-08-02
由于电缆深埋地下,而且长度较大,电缆故障探测起来也比较麻烦。虽然现在有电缆故障测试仪的辅助,但是由于电缆铺设的环境复杂,进行探测工作的时候,也是有很多需要注意的事项。那么地埋故障探测都需要注意哪些事项?
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?
先需要列清楚故障可能产生的原因及电缆的基本情况,例如是运行产生故障还是预试产生故障,是新电缆还是运行时间很长的电缆,电缆的大概长度,电缆中间有没有接头,电缆以前有没有出现过故障,电缆是直埋还是在电缆沟铺设,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.
测试人员须注意操作安全,每次与电缆接线前,将电缆各相线与地用短路线连接放电,放电时须先将短路线一端接地,另一端分别接电缆各相线放电。
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.
地埋探测
对于其它电器,例如电容器,试验变压器等,接线及去掉连接线前也要注意先放电接线。总之,要形成操作习惯,不怕麻烦,每次操作前,先注意操作电器有无与电路连接,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,还是低阻故障,均可用高压冲闪法进行测试。对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,一般也要用高压冲闪进行验证测试及故障点的精确定点。
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.
此外地埋探测进行时,同一电缆沟内其它电缆应暂时断电,测验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别离,确保人身安全和用电电器安全。更多相关内容就来我们网站http://www.binzhouhengtong.com详细了解吧。
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 http://www.binzhouhengtong.com Learn more.

相关产品 / Related products

  • 地钉

    地钉

  • 地钉

    地钉

  • 警示桩

    警示桩

  • 警示桩

    警示桩

截屏,微信识别二维码