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(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)出現(xian)斷(duan)相(xiang)(xiang)時(shi)(shi)，相(xiang)(xiang)序繼電(dian)(dian)(dian)(dian)(dian)(dian)器動作切斷(duan)a全(quan)回(hui)路，使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)梯停止運行。這種故障(zhang)多(duo)出在繼電(dian)(dian)(dian)(dian)(dian)(dian)器邏輯控制的電(dian)(dian)(dian)(dian)(dian)(dian)梯，因為是老(lao)式電(dian)(dian)(dian)(dian)(dian)(dian)梯，電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)開(kai)關多(duo)為閘刀式，電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)經(jing)過j限開(kai)關，再送至電(dian)(dian)(dian)(dian)(dian)(dian)梯控制柜、電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)流(liu)經(jing)的兩個開(kai)關，共六根保險絲。電(dian)(dian)(dian)(dian)(dian)(dian)梯運行、起動，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)都很大。經(jing)過一(yi)段時(shi)(shi)間運行，如維(wei)保人員不及時(shi)(shi)檢查，保險絲與螺絲連(lian)接(jie)處易燒斷(duan)，電(dian)(dian)(dian)(dian)(dian)(dian)梯斷(duan)相(xiang)(xiang)，引起停梯，輕則(ze)關人，重則(ze)發生事故。

主要預防措施：

①保養人(ren)員要經(jing)常巡視檢查，發現(xian)可疑之處，及時修理，出現(xian)發燙、打火(huo)花諸類情形應(ying)立(li)即更換。

②建議用戶將閘刀(dao)開(kai)關更(geng)換為相當容量的空(kong)氣開(kai)關。

③現在設計的電(dian)梯都(dou)沒有電(dian)源(yuan)j限(xian)開關(guan)，筆(bi)者認為，可(ke)以就a全回路略作改動，即加裝上、下j限(xian)電(dian)氣(qi)開關(guan)串聯在a全回路中，拆(chai)除原j限(xian)開關(guan)。

2、漲繩輪開關斷開引起停梯

像(xiang)曳引繩(sheng)(sheng)一樣，限速器繩(sheng)(sheng)同樣會在(zai)使用(yong)過程中伸長。由于底(di)坑(keng)漲(zhang)繩(sheng)(sheng)輪(lun)重錘的(de)作用(yong)，漲(zhang)繩(sheng)(sheng)輪(lun)開(kai)關打板(ban)偏移，直到斷開(kai)開(kai)關導(dao)致(zhi)停梯。

對于電梯安裝的新裝電梯，電梯安裝人員須每月檢查一(yi)(yi)次，運(yun)行(xing)一(yi)(yi)年以后，三(san)個月檢查一(yi)(yi)次，如此(ci)即可(ke)防患于未然(ran)。由于廳門密封不(bu)嚴，井(jing)道有(you)墻洞等(deng)各種原因，老(lao)鼠竄入井(jing)道時有(you)的會摔死，有(you)的掉(diao)入底坑因想方設法(fa)逃出(chu)竄入繩(sheng)輪而卡(ka)入其中，電梯向下運(yun)行(xing)導致(zhi)a全鉗(qian)開關動作，有(you)的限(xian)速(su)器開關也一(yi)(yi)起聯動。