特高潮喷白浆HDvideos,日日av拍夜夜添久久网站,国语对白调教半小时视频,国产人成无码视频在线,国产一级a毛一级a看免费视频

家庭裝(zhuang)修電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜是(shi)必用的裝(zhuang)飾材料，而我(wo)們(men)常用的家裝(zhuang)電(dian)(dian)(dian)線(xian)分(fen)有零線(xian)、地線(xian)和火(huo)線(xian)，為了方便電(dian)(dian)(dian)工(gong)區分(fen)，每種電(dian)(dian)(dian)線(xian)的顏色都不一樣(yang)，那么插(cha)座零線(xian)和地線(xian)接(jie)反了會怎(zen)樣(yang)，以及如何判(pan)斷零線(xian)和地線(xian)接(jie)反，各位是(shi)否(fou)了解呢？現(xian)在我(wo)們(men)一起來看(kan)看(kan)吧。

地線是(shi)通過大(da)地傳導回路到變壓(ya)(ya)器(qi)中性線(零線)的，存在(zai)一定的地阻，比(bi)導線阻值(zhi)大(da)許(xu)多(duo)，負(fu)載(zai)功(gong)率越(yue)大(da)，出現的電(dian)壓(ya)(ya)降就越(yue)大(da)，負(fu)載(zai)兩(liang)端電(dian)壓(ya)(ya)就會偏低或過低，有(you)可能(neng)影響負(fu)載(zai)正常運行(xing)(xing)(小功(gong)率負(fu)載(zai)尚可正常運行(xing)(xing))。

零線(xian)即供(gong)電(dian)(dian)(dian)變壓(ya)器(qi)中(zhong)性點(dian)(dian)，中(zhong)性點(dian)(dian)接(jie)地(di)(di)。地(di)(di)線(xian)接(jie)小區接(jie)地(di)(di)網。零線(xian)和地(di)(di)線(xian)都接(jie)了大地(di)(di)。正常情況下，零線(xian)和地(di)(di)線(xian)接(jie)反無后果。當(dang)供(gong)電(dian)(dian)(dian)零線(xian)出現斷線(xian)或(huo)(huo)者接(jie)觸不(bu)良(liang)(liang)，用(yong)(yong)電(dian)(dian)(dian)設(she)備通過地(di)(di)線(xian)經大地(di)(di)，回到變壓(ya)器(qi)中(zhong)性點(dian)(dian)，這就是(shi)典型的(de)一(yi)地(di)(di)一(yi)線(xian)供(gong)電(dian)(dian)(dian)方式。當(dang)供(gong)電(dian)(dian)(dian)零線(xian)出現斷線(xian)或(huo)(huo)者接(jie)觸不(bu)良(liang)(liang)，同時用(yong)(yong)電(dian)(dian)(dian)設(she)備接(jie)地(di)(di)不(bu)良(liang)(liang)，會造成用(yong)(yong)電(dian)(dian)(dian)設(she)備帶電(dian)(dian)(dian)，不(bu)安全。

2.地線(xian)懸空(kong)的電器要是零線(xian)與地線(xian)反接一方(fang)面電器無(wu)法工作(zuo)，另一方(fang)面如果外殼帶電，將發生更嚴(yan)重的事(shi)故。

（來源：網絡，版權歸原作(zuo)者）