大連配電箱主要結構分(fen)為箱殼、面(mian)板、安裝(zhuang)支(zhi)架(jia)、中(zhong)性母線排、接(jie)地(di)母線排等部(bu)件。在(zai)面(mian)板上有操(cao)作(zuo)主開(kai)(kai)(kai)關(guan)(guan)和分(fen)路(lu)開(kai)(kai)(kai)關(guan)(guan)的開(kai)(kai)(kai)啟孔，若不需要安裝(zhuang)全數分(fen)路(lu)開(kai)(kai)(kai)關(guan)(guan)時，可(ke)以使用(yong)封口(kou)板將開(kai)(kai)(kai)啟孔部(bu)分(fen)封閉(bi)。住(zhu)宅配電(dian)箱電(dian)器(qi)額定(ding)值(zhi)、動(dong)作(zuo)整定(ding)值(zhi)，應與分(fen)路(lu)開(kai)(kai)(kai)關(guan)(guan)電(dian)器(qi)的額定(ding)值(zhi)、動(dong)作(zuo)整定(ding)值(zhi)相適(shi)應。并裝(zhuang)設(she)總自(zi)(zi)動(dong)開(kai)(kai)(kai)關(guan)(guan)、漏電(dian)保(bao)護器(qi)和分(fen)路(lu)自(zi)(zi)動(dong)開(kai)(kai)(kai)關(guan)(guan)。

        施工現場配(pei)(pei)電(dian)(dian)系統內(nei)應當(dang)設(she)(she)置(zhi)(zhi)室內(nei)總(zong)配(pei)(pei)電(dian)(dian)屏和分配(pei)(pei)電(dian)(dian)箱分級(ji)供(gong)電(dian)(dian)，各級(ji)配(pei)(pei)電(dian)(dian)裝(zhuang)置(zhi)(zhi)的容(rong)量應與(yu)實際負載匹配(pei)(pei)。動力(li)、照明(ming)應分別(bie)設(she)(she)置(zhi)(zhi)。 大連配(pei)(pei)電(dian)(dian)箱中(zhong)的低壓電(dian)(dian)器(qi)，由熔斷器(qi)、交流接觸器(qi)、剩(sheng)余電(dian)(dian)流動作保(bao)護器(qi)、電(dian)(dian)容(rong)器(qi)及計(ji)量表等(deng)組成(cheng)。周圍空氣溫(wen)(wen)度(du)(du)的上限不超過40℃；周圍空氣溫(wen)(wen)度(du)(du)24h的平均(jun)值(zhi)不超過35℃；周圍空氣溫(wen)(wen)度(du)(du)的下限不低于-5℃或-25℃。施工用(yong)配(pei)(pei)電(dian)(dian)系統各配(pei)(pei)電(dian)(dian)箱、開關箱的安裝(zhuang)位置(zhi)(zhi)要合理。總(zong)配(pei)(pei)電(dian)(dian)箱要盡量靠近變(bian)壓器(qi)或外電(dian)(dian)源處，以便電(dian)(dian)源的引入。

        大連(lian)配(pei)(pei)電(dian)(dian)箱(xiang)分配(pei)(pei)電(dian)(dian)箱(xiang)應盡(jin)量安(an)裝在(zai)用(yong)(yong)電(dian)(dian)設(she)備(bei)(bei)或負(fu)(fu)荷(he)相對集(ji)中(zhong)的(de)(de)中(zhong)心地(di)帶，確保三相負(fu)(fu)荷(he)保持平衡。開關箱(xiang)安(an)裝的(de)(de)位置應視現(xian)場(chang)(chang)情況和工況盡(jin)量靠(kao)近(jin)其控(kong)制(zhi)的(de)(de)用(yong)(yong)電(dian)(dian)設(she)備(bei)(bei)。大連(lian)配(pei)(pei)電(dian)(dian)箱(xiang)應有齊備(bei)(bei)的(de)(de)中(zhong)性(xing)線按(an)線端子，箱(xiang)體必須具有牢固可靠(kao)的(de)(de)保護接地(di)接線端子。按(an)照規范要求：導線與電(dian)(dian)氣元件連(lian)接必須配(pei)(pei)有彈墊圈并壓按(an)牢固。 配(pei)(pei)電(dian)(dian)柜(ju)是電(dian)(dian)動機控(kong)制(zhi)中(zhong)心的(de)(de)統稱。配(pei)(pei)電(dian)(dian)柜(ju)是使用(yong)(yong)在(zai)負(fu)(fu)荷(he)比較分散、回(hui)路較少的(de)(de)場(chang)(chang)合(he)；電(dian)(dian)動機控(kong)制(zhi)中(zhong)心是使用(yong)(yong)于負(fu)(fu)荷(he)集(ji)中(zhong)、回(hui)路較多的(de)(de)場(chang)(chang)合(he)。