摘要
阐述高压单芯电力电缆金属护层感应电压的形成及危害,结合GB50217-94《电力工程电缆设计规范》,介绍金属护层感应电压的计算,分析对比接地方式工作原理、适用范围,供工程设计、安装施工参考。
This paper deals with the occurrence and catastrophic effect of induced tension on the metal sheathing of single--cored power cables for high electrical voltages. It also provides the calculation of such induced tension in accordance with the Chinese national standard GB50217--94, i. e. ＂ Design specifications for power supply cables＂. In addition, this paper also provides a comparative analysis of the working principles of the earthing modes and their applicable conditions. These are regarded as practical references for project design and power cable installaion.
出处
《中国煤炭》
北大核心
2008年第8期70-71,74,共3页
China Coal
关键词
单芯电力电缆
金属护层
感应电压
接地方式
single--cored power cable, metal sheathing, induced tension, mode of grounding
