1.斷開電源，檢查大連控制柜機架是否有可靠的接地，并且使接地的電阻不大于(yu)4Ω。

2.在控制柜上(shang)有不(bu)同性質的(de)電壓(直流(liu)110伏;交(jiao)流(liu)單相(xiang)(xiang)220伏;三相(xiang)(xiang)交(jiao)流(liu))，在維修保(bao)養時(shi)必(bi)須要分清電路，防止短路事故發生。

3.在大連(lian)控制柜上的全部電器開關，都應該動作靈活(huo)可靠，無(wu)顯著(zhu)噪聲，連(lian)接(jie)線結(jie)頭和接(jie)線柱(zhu)應無(wu)松動的現象，動觸(chu)頭連(lian)接(jie)線結(jie)頭處的鋼(gang)絲應無(wu)斷裂現象。

4.用軟刷或吹(chui)風清除屏板插(cha)件和全部電磁(ci)開(kai)(kai)關零件的積塵，并(bing)檢(jian)查控制柜內電器(qi)開(kai)(kai)關觸頭的狀態，接觸情況，線(xian)圈外表的絕緣(yuan)以及(ji)機(ji)械部件的動作是否可靠(kao)。

5.更換熔絲時(shi)(shi)控(kong)(kong)制(zhi)(zhi)(zhi)，控(kong)(kong)制(zhi)(zhi)(zhi)柜(ju)怎么保(bao)養應(ying)使熔斷電流(liu)與該(gai)回路的(de)電流(liu)相(xiang)匹配。相(xiang)關(guan)文章推薦：配電箱的(de)油斷路器(qi)簡(jian)介熱水(shui)循環泵(beng)(beng)(beng)控(kong)(kong)制(zhi)(zhi)(zhi)柜(ju):可(ke)控(kong)(kong)制(zhi)(zhi)(zhi)一(yi)(yi)臺(tai)(tai)或(huo)(huo)多(duo)(duo)臺(tai)(tai)水(shui)泵(beng)(beng)(beng)，一(yi)(yi)般(ban)是一(yi)(yi)用(yong)(yong)一(yi)(yi)備，兩臺(tai)(tai)互為(wei)備用(yong)(yong)，工(gong)(gong)作(zuo)泵(beng)(beng)(beng)故(gu)障時(shi)(shi)備用(yong)(yong)泵(beng)(beng)(beng)自(zi)動(dong)(dong)(dong)投(tou)入，也可(ke)以輪(lun)(lun)換工(gong)(gong)作(zuo)。水(shui)泵(beng)(beng)(beng)由溫度(du)控(kong)(kong)制(zhi)(zhi)(zhi)或(huo)(huo)遠程(cheng)控(kong)(kong)制(zhi)(zhi)(zhi)。并設有(you)工(gong)(gong)作(zuo)狀(zhuang)(zhuang)態(tai)（手動(dong)(dong)(dong)、自(zi)動(dong)(dong)(dong)）選擇開關(guan)，信(xin)號指示及反饋冷凍(dong)（冷卻(que)）水(shui)泵(beng)(beng)(beng)控(kong)(kong)制(zhi)(zhi)(zhi)柜(ju):控(kong)(kong)制(zhi)(zhi)(zhi)多(duo)(duo)臺(tai)(tai)水(shui)泵(beng)(beng)(beng)，一(yi)(yi)般(ban)都是互為(wei)備用(yong)(yong)，輪(lun)(lun)換工(gong)(gong)作(zuo)，工(gong)(gong)作(zuo)泵(beng)(beng)(beng)故(gu)障時(shi)(shi)備用(yong)(yong)泵(beng)(beng)(beng)自(zi)動(dong)(dong)(dong)投(tou)入由控(kong)(kong)制(zhi)(zhi)(zhi)器(qi)或(huo)(huo)遠程(cheng)控(kong)(kong)制(zhi)(zhi)(zhi)。并設有(you)工(gong)(gong)作(zuo)狀(zhuang)(zhuang)態(tai)（手動(dong)(dong)(dong)、自(zi)動(dong)(dong)(dong)）選擇開關(guan)，信(xin)號指示及反饋。排水(shui)泵(beng)(beng)(beng)控(kong)(kong)制(zhi)(zhi)(zhi)柜(ju):可(ke)控(kong)(kong)制(zhi)(zhi)(zhi)一(yi)(yi)臺(tai)(tai)或(huo)(huo)多(duo)(duo)臺(tai)(tai)水(shui)泵(beng)(beng)(beng)，一(yi)(yi)般(ban)是一(yi)(yi)用(yong)(yong)一(yi)(yi)備，互為(wei)備用(yong)(yong)，工(gong)(gong)作(zuo)泵(beng)(beng)(beng)故(gu)障時(shi)(shi)備用(yong)(yong)泵(beng)(beng)(beng)自(zi)動(dong)(dong)(dong)投(tou)入。由單液位(wei)或(huo)(huo)多(duo)(duo)液位(wei)控(kong)(kong)制(zhi)(zhi)(zhi)還可(ke)以遠程(cheng)控(kong)(kong)制(zhi)(zhi)(zhi)。高水(shui)位(wei)啟動(dong)(dong)(dong)，低水(shui)位(wei)停泵(beng)(beng)(beng)，超高同啟，自(zi)動(dong)(dong)(dong)輪(lun)(lun)換等。并設有(you)工(gong)(gong)作(zuo)狀(zhuang)(zhuang)態(tai)（手動(dong)(dong)(dong)、自(zi)動(dong)(dong)(dong)）選擇開關(guan)，信(xin)號指示及反饋。