在安裝大連高低壓開關柜前，應(ying)(ying)(ying)檢查進(jin)場(chang)道路是(shi)否暢通，必(bi)要(yao)時應(ying)(ying)(ying)修建簡易運(yun)輸通道與各安(an)裝點連接，施(shi)工(gong)場(chang)地布置(zhi)應(ying)(ying)(ying)滿足安(an)全文明施(shi)工(gong)的要(yao)求。同時還應(ying)(ying)(ying)檢查施(shi)工(gong)機具狀況(kuang)，確保機具狀態(tai)良(liang)好。高壓(ya)設備到(dao)達現場(chang)前，配電室(shi)、電纜溝、基(ji)礎槽(cao)鋼應(ying)(ying)(ying)已(yi)完全竣工(gong)。

 固定面(mian)(mian)(mian)板式(shi)大連高低壓(ya)開(kai)關(guan)(guan)柜(ju)，常(chang)稱(cheng)開(kai)關(guan)(guan)板或(huo)配電(dian)(dian)屏。它(ta)是一種有(you)面(mian)(mian)(mian)板遮攔的(de)(de)開(kai)啟式(shi)開(kai)關(guan)(guan)柜(ju)，正面(mian)(mian)(mian)有(you)防(fang)(fang)護(hu)作(zuo)用(yong)，背(bei)面(mian)(mian)(mian)和(he)側面(mian)(mian)(mian)仍能(neng)觸及帶電(dian)(dian)部分，防(fang)(fang)護(hu)等級低，只(zhi)能(neng)用(yong)于(yu)對(dui)供(gong)(gong)電(dian)(dian)連續性和(he)可(ke)靠性要求較低的(de)(de)工礦企業，作(zuo)變電(dian)(dian)室(shi)集(ji)中供(gong)(gong)電(dian)(dian)用(yong)。防(fang)(fang)護(hu)式(shi)（即封閉(bi)式(shi)）開(kai)關(guan)(guan)柜(ju)，指除安(an)裝面(mian)(mian)(mian)外(wai)，其它(ta)所有(you)側面(mian)(mian)(mian)都(dou)被封閉(bi)起來(lai)的(de)(de)一種低壓(ya)開(kai)關(guan)(guan)柜(ju)。這(zhe)種柜(ju)子的(de)(de)開(kai)關(guan)(guan)、保護(hu)和(he)監測(ce)(ce)控(kong)制等電(dian)(dian)氣元件，均安(an)裝在一個用(yong)鋼或(huo)絕緣材料(liao)制成的(de)(de)封閉(bi)外(wai)殼內(nei)(nei)，可(ke)靠墻或(huo)離墻安(an)裝。柜(ju)內(nei)(nei)每條回路之間可(ke)以不(bu)加隔離措施，也可(ke)以采用(yong)接(jie)地的(de)(de)金(jin)屬(shu)板或(huo)絕緣板進(jin)行隔離。通(tong)常(chang)門與主(zhu)開(kai)關(guan)(guan)操作(zuo)有(you)機械聯(lian)鎖。另外(wai)還有(you)防(fang)(fang)護(hu)式(shi)臺(tai)型開(kai)關(guan)(guan)柜(ju)（即控(kong)制臺(tai)），面(mian)(mian)(mian)板上裝有(you)控(kong)制、測(ce)(ce)量(liang)、信(xin)號等電(dian)(dian)器(qi)。防(fang)(fang)護(hu)式(shi)開(kai)關(guan)(guan)柜(ju)主(zhu)要用(yong)作(zuo)工藝(yi)現(xian)場的(de)(de)配電(dian)(dian)裝置。