高电阻率地域电气接地系统综合方案

电气接地是保障电气系统正常运行和设备安全的重要措施。在高电阻率地域,将接地电阻降到设计值非常困难。论述了综合利用构筑物的导电结构、新型人工接地材料,通过接地系统的总体优化,在减小接地电阻的同时,降低接地系统造价。还重点探讨了地下指挥工程接地系统的设计问题。为接地系统优化设计和工程应用提供借鉴。

Optimal Design of Electrical Earthing System in High Resistivity Area

Electrical earthing is an important measure to ensure the normal operation and equipment safety. In the high resistivity area, it is very difficult to reduce the earthing resistance to the given value. In this cases, by means of composite design optimization, introducing new materials to improve the conductivity of its inner structures and making a full use of it, the problem can be solved and the budget can be cut down. A special underground case is investigated in the paper.