水电站户外照明配电系统的保护接地

Grounding of Distribution System Protection for Outdoor Area Lighting in the Hydropower Station

水电站枢纽布置区域较大,且有可靠的大面积电站接地网,其户外照明场所各有特点。阐述了照明配电系统4种保护接地方式,分析了各种保护接地方式的可靠性及适用性,在设计水电站户外照明时,应分析其场所特性,结合水电站进场道路、进厂交通隧道、生活区、户外开关站以及出线平台等户外照明场所的特点,提出水电站户外照明配电系统的保护接地方式。

The layout area of hydropower station is rather larger and its outdoor lightingparts with reliable grounding nets. The 4 kinds of grounding modes of relay protection in the distribution system for lighting were discussed in this paper. Analysis of the reliability and applicability of grounding mode and the features of lighting location including roads in the hydropower station area, tragic tunnels, living quarters, outdoor switching station and outgoing line platform, the grounding mode of relay protection for the distribution system of outdoor area lighting in hydropower station were proposed.