隨著科技的進步，電梯技術水平不斷提高，其運行的可靠性明顯加大。在維修保養中，一些比較典型的停梯故障需要及時排出。

1、斷相引起停梯

當三相電(dian)(dian)(dian)(dian)(dian)(dian)源出現斷相時，相序繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)動(dong)作切斷a全回路(lu)，使電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)停止運(yun)行。這種(zhong)故(gu)障多出在繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)邏輯控(kong)制(zhi)的電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)，因為是老式電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)，電(dian)(dian)(dian)(dian)(dian)(dian)源開(kai)(kai)關多為閘刀式，電(dian)(dian)(dian)(dian)(dian)(dian)源經(jing)過j限開(kai)(kai)關，再送至電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)控(kong)制(zhi)柜(ju)、電(dian)(dian)(dian)(dian)(dian)(dian)源流經(jing)的兩(liang)個(ge)開(kai)(kai)關，共六根(gen)保險(xian)絲。電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)運(yun)行、起動(dong)，電(dian)(dian)(dian)(dian)(dian)(dian)流都(dou)很(hen)大(da)。經(jing)過一段時間運(yun)行，如維保人員不及時檢查，保險(xian)絲與螺絲連接(jie)處易燒斷，電(dian)(dian)(dian)(dian)(dian)(dian)梯(ti)(ti)斷相，引起停梯(ti)(ti)，輕則(ze)(ze)關人，重則(ze)(ze)發生事故(gu)。

主要預防措施：

①保養人員(yuan)要(yao)經(jing)常巡視檢查，發(fa)現可疑之處，及時修理，出現發(fa)燙、打火(huo)花諸類情形應立即(ji)更換。

②建議用(yong)戶將閘刀開關更換為相(xiang)當容量的空氣開關。

③現在設計的電(dian)梯都沒有電(dian)源j限(xian)開關(guan)，筆(bi)者認為，可(ke)以就a全(quan)回(hui)路略作改動，即加裝上、下j限(xian)電(dian)氣(qi)開關(guan)串聯在a全(quan)回(hui)路中(zhong)，拆除原j限(xian)開關(guan)。

2、漲繩(sheng)輪開(kai)關斷開(kai)引起停梯

像(xiang)曳(ye)引(yin)繩(sheng)一樣(yang)(yang)，限速器繩(sheng)同樣(yang)(yang)會(hui)在使用過程中伸(shen)長。由(you)于底坑(keng)漲繩(sheng)輪重錘的作用，漲繩(sheng)輪開(kai)關打板偏移，直到斷開(kai)開(kai)關導致停梯。

對于電梯安裝的新裝電梯，電梯安裝人(ren)員須每(mei)月檢查一(yi)次，運(yun)行一(yi)年以后(hou)，三個月檢查一(yi)次，如(ru)此即(ji)可(ke)防患(huan)于未然(ran)。由于廳門(men)密封不(bu)嚴，井道有(you)墻洞(dong)等(deng)各種原因，老鼠竄(cuan)入(ru)井道時(shi)有(you)的(de)會(hui)摔死，有(you)的(de)掉入(ru)底(di)坑因想方設法(fa)逃出竄(cuan)入(ru)繩輪而卡入(ru)其(qi)中(zhong)，電梯向(xiang)下運(yun)行導(dao)致(zhi)a全(quan)鉗開關(guan)動(dong)作，有(you)的(de)限速器開關(guan)也一(yi)起(qi)聯動(dong)。