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)源(yuan)出現斷相時(shi)，相序(xu)繼電(dian)(dian)(dian)(dian)器動(dong)作切斷a全回路，使電(dian)(dian)(dian)(dian)梯(ti)停止運行(xing)。這(zhe)種故障多出在繼電(dian)(dian)(dian)(dian)器邏輯(ji)控(kong)制的電(dian)(dian)(dian)(dian)梯(ti)，因為(wei)是老式電(dian)(dian)(dian)(dian)梯(ti)，電(dian)(dian)(dian)(dian)源(yuan)開關(guan)(guan)多為(wei)閘刀(dao)式，電(dian)(dian)(dian)(dian)源(yuan)經(jing)過j限開關(guan)(guan)，再送至電(dian)(dian)(dian)(dian)梯(ti)控(kong)制柜、電(dian)(dian)(dian)(dian)源(yuan)流(liu)經(jing)的兩個(ge)開關(guan)(guan)，共六根(gen)保(bao)險絲。電(dian)(dian)(dian)(dian)梯(ti)運行(xing)、起動(dong)，電(dian)(dian)(dian)(dian)流(liu)都很大。經(jing)過一段時(shi)間運行(xing)，如維(wei)保(bao)人員不(bu)及時(shi)檢(jian)查，保(bao)險絲與螺(luo)絲連(lian)接處易燒(shao)斷，電(dian)(dian)(dian)(dian)梯(ti)斷相，引起停梯(ti)，輕則關(guan)(guan)人，重則發生(sheng)事故。

主要預防措施：

①保(bao)養人(ren)員要經(jing)常巡視檢查，發現(xian)可(ke)疑(yi)之處(chu)，及時修理，出現(xian)發燙、打火(huo)花諸類情形應立即更換(huan)。

②建議用戶將閘刀開關(guan)(guan)更換為相(xiang)當容(rong)量(liang)的空氣開關(guan)(guan)。

③現在設(she)計的電梯都沒有電源j限開(kai)關，筆者(zhe)認(ren)為，可以就(jiu)a全回(hui)路(lu)略作改動，即加裝上、下j限電氣開(kai)關串(chuan)聯在a全回(hui)路(lu)中，拆除原j限開(kai)關。

2、漲繩輪開關斷(duan)開引起停梯(ti)

像曳引(yin)繩(sheng)一(yi)樣，限(xian)速器繩(sheng)同(tong)樣會在使用過程中伸長(chang)。由于底坑漲繩(sheng)輪(lun)重錘(chui)的作(zuo)用，漲繩(sheng)輪(lun)開(kai)(kai)關打板偏移，直(zhi)到(dao)斷開(kai)(kai)開(kai)(kai)關導致(zhi)停梯。

對于電梯安裝的新裝電梯，電梯安裝人(ren)員須每月(yue)檢(jian)查一(yi)次，運行(xing)(xing)一(yi)年(nian)以后(hou)，三個月(yue)檢(jian)查一(yi)次，如此即可防患于(yu)未然。由(you)于(yu)廳門密封不嚴，井(jing)道(dao)有(you)墻洞(dong)等各種原因(yin)(yin)，老(lao)鼠竄入(ru)(ru)井(jing)道(dao)時有(you)的(de)(de)(de)會摔死，有(you)的(de)(de)(de)掉入(ru)(ru)底坑因(yin)(yin)想方(fang)設法逃(tao)出(chu)竄入(ru)(ru)繩(sheng)輪(lun)而卡入(ru)(ru)其中，電梯向下運行(xing)(xing)導致a全鉗開(kai)關動作，有(you)的(de)(de)(de)限速(su)器開(kai)關也一(yi)起聯動。