摘要
介绍了直埋电(光)缆线路防雷击的点和标准,分析了雷电对直埋电缆危害大的原因、雷击时的现象、特征及雷电的规律,以便及时采取有效的防雷措施,确保电(光)缆通信线路畅通。
Introduce to bury the electrical (light) road of cabled yarn directly to guard againststandard and the mainpoints of strike of thunderbolt, analyse the phenomenon when lightning endangers big reason and strike of thunderbolt for buried cable and the law of feature and lightning, in order adopt effective defence in time thunder measure, it is unblocked to ensure electrical (light) cable correspondence line.
出处
《电信工程技术与标准化》
2004年第11期35-39,共5页
Telecom Engineering Technics and Standardization
关键词
直埋
防雷击
雷电
防雷措施
通信线路
要点
point discharge, soil resistance rate,metal protect layer, potential funnel, net distance to protect
