四极断路器与石化装置低压配电TN-C-S制式  

4-Pole Circuit Breaker and Low Voltage TN-C-S System of Petrochemical Production Equipment

作　　者：盖生 王思远 张鹤龙 金春旭 

机构地区：[1]中国石油辽阳石化分公司,辽宁辽阳111003

出　　处：《低压电器》2010年第5期52-54,共3页Low Voltage Apparatus

摘　　要：介绍了石化企业生产装置低压配电采用的TN-C-S制式,指出低压开关柜进线开关和母联开关配置三极断路器,Ⅰ、Ⅱ段N排通联安装的做法不符合TN-C-S制式;进线开关和母联开关配置四极断路器,Ⅰ、Ⅱ段N排分段安装的做法才能符合TN-C-S制式,适用于爆炸和火灾危险环境的供配电。The TN-C-S system of low voltage distribution for petrochemical enterprise was introduced. It was pointed out that the method of 3-pole circuit breaker being used as input switch or bus switch, and I, Ⅱ segment N bus bar being installed sequentially wasnt accord with TN-C-S system; but the method of 4-pole circuit breaker be- ing used as input switch or bus switch, and I, II segment N bus bar being installed separately was accord with TN- C-S system, which could suitable for power distribution system in hazard condition, such as blast and fire.

关 键 词：断路器:低压开关柜 TN-C-S制式 

分 类 号：TM561[电气工程—电器]