由于大連配電箱的用電(dian)(dian)負荷主要(yao)(yao)是(shi)感性負載.所以(yi),要(yao)(yao)求電(dian)(dian)柜內斷路(lu)器(開關)的瞬時(shi)過載能力要(yao)(yao)強,滅弧性能要(yao)(yao)好,接(jie)通的可靠性要(yao)(yao)高。照明(ming)配電(dian)(dian)箱是(shi)將剩余(yu)電(dian)(dian)流(liu)動作保護器和空氣(qi)斷路(lu)器等(deng)(deng)在其內部合理組合裝(zhuang)配起來(lai)，從(cong)而(er)實現對家庭(ting)電(dian)(dian)源集中 控制，以(yi)及接(jie)地、過載、短路(lu)等(deng)(deng)保護功能的基礎配電(dian)(dian)裝(zhuang)置(zhi)。

         低壓(ya)(ya)(ya)大(da)連配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)只是(shi)(shi)在(zai)配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)(tong)中(zhong)相(xiang)對高(gao)壓(ya)(ya)(ya)輸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)(tong)而言，我國電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)標準(zhun)是(shi)(shi)三相(xiang)四線(xian)(xian)400V(供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya))單(dan)相(xiang)是(shi)(shi)230V(供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的相(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya))，用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)標準(zhun)是(shi)(shi)：三相(xiang)四線(xian)(xian)380V，單(dan)相(xiang)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)標準(zhun)是(shi)(shi)：220V。供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)比(bi)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)略高(gao),是(shi)(shi)考慮到低壓(ya)(ya)(ya)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)統(tong)(tong)線(xian)(xian)路(lu)(lu)的損耗。動力大(da)連配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)中(zhong)的導(dao)線(xian)(xian)進(jin)線(xian)(xian)口(kou)和出線(xian)(xian)口(kou)應(ying)設(she)在(zai)箱(xiang)(xiang)體(ti)的下(xia)底面，嚴禁設(she)在(zai)箱(xiang)(xiang)體(ti)的頂面,側(ce)面,后(hou)面或箱(xiang)(xiang)門處(chu)；進(jin)線(xian)(xian)和出線(xian)(xian)應(ying)加護(hu)套分路(lu)(lu)成束并做防水彎；導(dao)線(xian)(xian)束不得與箱(xiang)(xiang)體(ti)進(jin)、出口(kou)直接(jie)(jie)接(jie)(jie)觸；進(jin)入開關箱(xiang)(xiang)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)，嚴禁用(yong)插銷連接(jie)(jie);移動式(shi)配(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)、開關箱(xiang)(xiang)的進(jin)口(kou)線(xian)(xian)、出口(kou)線(xian)(xian)必(bi)須采用(yong)橡皮絕緣(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜。

        大連配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)箱(xiang)的(de)(de)(de)設(she)備(bei)施(shi)工現(xian)場(chang)配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)體系應該設(she)置(zhi)室內總配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)屏以及分(fen)配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)箱(xiang)，又(you)或者室外總配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)箱(xiang)和分(fen)配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)箱(xiang)分(fen)級供電(dian)(dian)(dian)，且各級配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)設(she)備(bei)的(de)(de)(de)容量應與實踐負載匹配(pei)(pei)(pei)(pei)，動(dong)力(li)、照明用(yong)電(dian)(dian)(dian)應別離其他設(she)置(zhi)。各級配(pei)(pei)(pei)(pei)電(dian)(dian)(dian)箱(xiang)中的(de)(de)(de)漏(lou)電(dian)(dian)(dian)維(wei)(wei)護(hu)器，應合(he)理(li)配(pei)(pei)(pei)(pei)備(bei)，起到分(fen)級、分(fen)段維(wei)(wei)護(hu)作(zuo)(zuo)用(yong)。嚴(yan)格防(fang)止線路短路或接(jie)地(di)；操(cao)作(zuo)(zuo)時(shi)應帶有絕緣(yuan)手套、運用(yong)絕緣(yuan)東(dong)西，必要時(shi)在(zai)作(zuo)(zuo)業(ye)前(qian)停用(yong)有關繼電(dian)(dian)(dian)維(wei)(wei)護(hu)設(she)備(bei)，接(jie)暫時(shi)負載時(shi)，有必要裝有專業(ye)的(de)(de)(de)開關和熔(rong)斷器。其次(ci)是防(fang)護(hu)場(chang)所的(de)(de)(de)維(wei)(wei)護(hu)。查看斷電(dian)(dian)(dian)維(wei)(wei)護(hu)，不準隨(sui)意(yi)進行任何倒閘操(cao)作(zuo)(zuo)。