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tan di ya kai guan de zhi liang yao qiu -- lun si ji kai guan de ying yong
Author(s): 
Pages: 39-40
Year: Issue:  2
Journal: QUALITY FOR CHEMICAL INDUSTRY

Keyword:  电器检修四极开关中性线;
Abstract: 为保证电器检修安全和实现电器装置的某些功能,空气开关在切断线路时,除断开所有相线外,还需断开中性线,即断开全部带电导体,常用的低压开关仅能断开三相相线,维护人员触及带危险电压的中性线会受到伤害,因此推出更为有效的隔离措施--四极开关,但其执行过程众说纷纭,应在具体环境下采用不同的开关确保安全.
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