摘要
随着变电站计算机、通信设备、控制系统等信息系统的广泛应用,提出变电站应采用等电位连接,不应该再要求接地网的接地工频电阻值一律小于或等于0.5Ω;在防雷接地计算中,不能把工频接地电阻等同于冲击接地电阻。
With the application of computers, communication equipment, control system and so on, equal electric potential connection should be employed in the design of the power substation so that frequency resistance isn't always required to be less than or equal to 0.5 Ω. and industrial frequency earth-resistance isn't synonymous with impulse earth-resistance in lightning protection earth calculation.
出处
《同煤科技》
2009年第3期39-40,共2页
Datong Coal Science & Technology
关键词
电工技术
变电站
防雷
接地网
等电位连接
工频接地电阻
冲击接地电阻
electrotechnics
power substation
light -protection
earth network
equal electric potential connection
industrial-frequency earth resistance
impulse earth resistance
