由于大連配電箱的(de)用電(dian)負(fu)荷主要(yao)(yao)是(shi)感(gan)性負(fu)載(zai)(zai).所以,要(yao)(yao)求電(dian)柜內斷(duan)(duan)路(lu)器(開(kai)關(guan))的(de)瞬時過(guo)載(zai)(zai)能(neng)力要(yao)(yao)強(qiang),滅(mie)弧性能(neng)要(yao)(yao)好(hao),接(jie)通(tong)的(de)可(ke)靠性要(yao)(yao)高。照(zhao)明配(pei)電(dian)箱是(shi)將(jiang)剩余電(dian)流動作保護器和(he)空(kong)氣斷(duan)(duan)路(lu)器等(deng)在(zai)其內部(bu)合(he)理(li)組合(he)裝(zhuang)配(pei)起來，從(cong)而(er)實現對家(jia)庭電(dian)源集(ji)中 控制，以及接(jie)地、過(guo)載(zai)(zai)、短(duan)路(lu)等(deng)保護功能(neng)的(de)基(ji)礎配(pei)電(dian)裝(zhuang)置。

         低壓(ya)(ya)(ya)大(da)連配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)只是在(zai)配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)中相(xiang)(xiang)對高(gao)壓(ya)(ya)(ya)輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)而言，我國(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)標(biao)準是三相(xiang)(xiang)四線(xian)(xian)(xian)400V(供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya))單(dan)相(xiang)(xiang)是230V(供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)相(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya))，用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)標(biao)準是：三相(xiang)(xiang)四線(xian)(xian)(xian)380V，單(dan)相(xiang)(xiang)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)標(biao)準是：220V。供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)比用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)略(lve)高(gao),是考(kao)慮到低壓(ya)(ya)(ya)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)統(tong)線(xian)(xian)(xian)路的(de)(de)損(sun)耗(hao)。動力大(da)連配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)中的(de)(de)導線(xian)(xian)(xian)進(jin)線(xian)(xian)(xian)口和出(chu)線(xian)(xian)(xian)口應(ying)設在(zai)箱(xiang)(xiang)體(ti)的(de)(de)下底面(mian)，嚴禁設在(zai)箱(xiang)(xiang)體(ti)的(de)(de)頂面(mian),側面(mian),后面(mian)或(huo)箱(xiang)(xiang)門處；進(jin)線(xian)(xian)(xian)和出(chu)線(xian)(xian)(xian)應(ying)加(jia)護套分(fen)路成束(shu)并做(zuo)防水彎(wan)；導線(xian)(xian)(xian)束(shu)不得與箱(xiang)(xiang)體(ti)進(jin)、出(chu)口直(zhi)接(jie)接(jie)觸；進(jin)入(ru)開(kai)關箱(xiang)(xiang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源線(xian)(xian)(xian)，嚴禁用插銷連接(jie);移動式配電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)、開(kai)關箱(xiang)(xiang)的(de)(de)進(jin)口線(xian)(xian)(xian)、出(chu)口線(xian)(xian)(xian)必須采用橡(xiang)皮絕(jue)緣電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜。

        大連(lian)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)的設備(bei)施工現場配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)體系應(ying)(ying)該設置室內總(zong)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)屏以及分配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)，又或者室外總(zong)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)和分配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)分級(ji)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)，且(qie)各級(ji)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)設備(bei)的容量應(ying)(ying)與(yu)實踐負載(zai)(zai)匹配(pei)(pei)(pei)，動力、照明用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)應(ying)(ying)別離其(qi)他(ta)設置。各級(ji)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)中的漏電(dian)(dian)(dian)(dian)(dian)(dian)維(wei)(wei)護(hu)器，應(ying)(ying)合(he)理(li)配(pei)(pei)(pei)備(bei)，起到分級(ji)、分段(duan)維(wei)(wei)護(hu)作(zuo)用(yong)。嚴格防(fang)止線路短路或接地；操作(zuo)時(shi)(shi)應(ying)(ying)帶有絕(jue)緣(yuan)手(shou)套、運用(yong)絕(jue)緣(yuan)東西，必要時(shi)(shi)在作(zuo)業前停(ting)用(yong)有關繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)維(wei)(wei)護(hu)設備(bei)，接暫時(shi)(shi)負載(zai)(zai)時(shi)(shi)，有必要裝(zhuang)有專業的開關和熔(rong)斷器。其(qi)次是防(fang)護(hu)場所的維(wei)(wei)護(hu)。查看斷電(dian)(dian)(dian)(dian)(dian)(dian)維(wei)(wei)護(hu)，不準(zhun)隨意進行任何(he)倒閘(zha)操作(zuo)。