在安裝大連高低壓開關柜前(qian)，應檢查進場道路是否暢通，必(bi)要時應修(xiu)建簡易(yi)運輸通道與各安裝點(dian)連接，施(shi)工(gong)(gong)(gong)場地布置應滿足安全(quan)文明施(shi)工(gong)(gong)(gong)的(de)要求。同時還應檢查施(shi)工(gong)(gong)(gong)機具(ju)狀(zhuang)況，確(que)保機具(ju)狀(zhuang)態(tai)良好(hao)。高(gao)壓設備到達現場前(qian)，配電室、電纜溝、基礎槽鋼應已(yi)完全(quan)竣工(gong)(gong)(gong)。

固(gu)定面(mian)板(ban)式(shi)(shi)大(da)連高低壓開關(guan)(guan)柜(ju)(ju)，常稱開關(guan)(guan)板(ban)或(huo)配(pei)電(dian)(dian)(dian)屏。它是一種有(you)(you)面(mian)板(ban)遮(zhe)攔的(de)(de)開啟式(shi)(shi)開關(guan)(guan)柜(ju)(ju)，正面(mian)有(you)(you)防(fang)(fang)護(hu)作(zuo)(zuo)用，背面(mian)和(he)(he)側面(mian)仍(reng)能觸及帶(dai)電(dian)(dian)(dian)部分，防(fang)(fang)護(hu)等級低，只能用于對供電(dian)(dian)(dian)連續性(xing)和(he)(he)可(ke)靠性(xing)要求較(jiao)低的(de)(de)工(gong)礦(kuang)企業，作(zuo)(zuo)變(bian)電(dian)(dian)(dian)室集中供電(dian)(dian)(dian)用。防(fang)(fang)護(hu)式(shi)(shi)（即封閉式(shi)(shi)）開關(guan)(guan)柜(ju)(ju)，指除安(an)裝(zhuang)(zhuang)面(mian)外，其(qi)它所有(you)(you)側面(mian)都被封閉起來的(de)(de)一種低壓開關(guan)(guan)柜(ju)(ju)。這種柜(ju)(ju)子的(de)(de)開關(guan)(guan)、保(bao)護(hu)和(he)(he)監測控(kong)制(zhi)等電(dian)(dian)(dian)氣元件，均(jun)安(an)裝(zhuang)(zhuang)在一個(ge)用鋼或(huo)絕(jue)緣材(cai)料制(zhi)成(cheng)的(de)(de)封閉外殼內，可(ke)靠墻或(huo)離(li)(li)墻安(an)裝(zhuang)(zhuang)。柜(ju)(ju)內每條回(hui)路之間可(ke)以(yi)不(bu)加(jia)隔離(li)(li)措施，也可(ke)以(yi)采用接(jie)地(di)的(de)(de)金屬板(ban)或(huo)絕(jue)緣板(ban)進(jin)行隔離(li)(li)。通常門(men)與主開關(guan)(guan)操作(zuo)(zuo)有(you)(you)機(ji)械聯鎖(suo)。另(ling)外還有(you)(you)防(fang)(fang)護(hu)式(shi)(shi)臺型開關(guan)(guan)柜(ju)(ju)（即控(kong)制(zhi)臺），面(mian)板(ban)上(shang)裝(zhuang)(zhuang)有(you)(you)控(kong)制(zhi)、測量、信號(hao)等電(dian)(dian)(dian)器。防(fang)(fang)護(hu)式(shi)(shi)開關(guan)(guan)柜(ju)(ju)主要用作(zuo)(zuo)工(gong)藝現場的(de)(de)配(pei)電(dian)(dian)(dian)裝(zhuang)(zhuang)置。