漏电保护断路器1P2P有何区别,各有优缺点?

2025-03-15 08:50:26
推荐回答(2个)
回答1:

1P的漏保只能断开相线(火线),而零线是直接接进漏保再输出的。 在漏保动作后只能断开相线,不能断开零线。假如外部进线把相线和零线搞反得话。那就只能断开零线。而火线还在负载上。不能取到漏电保护。那就比较危险了。1P一般用在工业上没有什么问题的,因为在工业上使用时相线零线从低压室出来一般都不会搞错。而民用就不能保证进户的时候或者是说在使用过程中不会发生什么问题。
2P的漏保就不同了。它是相线和零线都先经过2P空开在接进漏保电路。而漏保动作后就把两根线都断开。
对于安全来说我建议使用2P的漏保。绝对保证你的安全。

回答2:

“1P”小型断路器的额定电压是交流230伏,只能分断单相电路,而且相线与零线不能接错;“2P”小型断路器的额定电压是交流400伏,可分断双相/单相电路

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