地線火線零線怎么接
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來源:金環宇電線發布(bu)日期:2019-10-15 17:13
接火線和零線,兩根可以通電;地線是安(an)全接地的,是通設備外(wai)殼的。
這三根線都能通電。
火線(xian)對地電壓(ya)220V。
零(ling)線對地電壓為0。
至于地(di)線,當漏電的(de)時候,就(jiu)靠(kao)它與大地(di)連接起(qi)保護(hu)作用了(le)。
進戶線(xian)(xian)分為端線(xian)(xian)(一般(ban)為紅色(se),俗(su)稱火(huo)線(xian)(xian))和零線(xian)(xian)(零線(xian)(xian)是變壓器中性點(dian)引出的(de)線(xian)(xian)路(lu)(lu),與相線(xian)(xian)構成回路(lu)(lu)對(dui)用電設備進行供電),火(huo)線(xian)(xian)和零線(xian)(xian)之間有220V電壓,它們構成家庭電路(lu)(lu)的(de)電源,它們用試(shi)電筆來(lai)判別,能(neng)使試(shi)電筆的(de)氖(nai)管發光(guang)的(de)是火(huo)線(xian)(xian),不(bu)能(neng)使氖(nai)管發光(guang)的(de)是零線(xian)(xian)。
火(huo)線(xian)(xian)(xian),就是(shi)電(dian)(dian)(dian)路中輸送電(dian)(dian)(dian)的電(dian)(dian)(dian)源線(xian)(xian)(xian)。零(ling)線(xian)(xian)(xian),主要(yao)應(ying)用于(yu)工作回(hui)路,從(cong)變壓(ya)器(qi)中性點接地后引出(chu)主干線(xian)(xian)(xian)。火(huo)線(xian)(xian)(xian)和零(ling)線(xian)(xian)(xian)的區別在于(yu)它們對地的電(dian)(dian)(dian)壓(ya)不同。火(huo)線(xian)(xian)(xian)對地的電(dian)(dian)(dian)壓(ya)為220V,零(ling)線(xian)(xian)(xian)則(ze)沒有電(dian)(dian)(dian)壓(ya)。
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