配(pei)電(dian)(dian)(dian)箱(xiang)內電(dian)(dian)(dian)器(qi)(qi)選(xuan)擇不(bu)(bu)(bu)當引起的(de)故障：由(you)于(yu)在制造時對交流接(jie)觸器(qi)(qi)容(rong)量選(xuan)擇不(bu)(bu)(bu)很恰當，對不(bu)(bu)(bu)同出(chu)線回路安裝(zhuang)同容(rong)量的(de)交流接(jie)觸器(qi)(qi)，且未考慮到(dao)三相(xiang)負荷(he)的(de)不(bu)(bu)(bu)平衡情(qing)況(kuang)，總(zong)(zong)配(pei)電(dian)(dian)(dian)箱(xiang)電(dian)(dian)(dian)器(qi)(qi)額定(ding)值、動作整定(ding)值，應(ying)與分(fen)路開(kai)(kai)(kai)關電(dian)(dian)(dian)器(qi)(qi)的(de)額定(ding)值、動作整定(ding)值相(xiang)適應(ying)。并裝(zhuang)設(she)總(zong)(zong)自動開(kai)(kai)(kai)關、漏(lou)電(dian)(dian)(dian)保(bao)護器(qi)(qi)和分(fen)路自動開(kai)(kai)(kai)關。各級配(pei)電(dian)(dian)(dian)箱(xiang)中使(shi)用的(de)各種電(dian)(dian)(dian)氣元件(jian)和漏(lou)電(dian)(dian)(dian)保(bao)護器(qi)(qi)應(ying)符合質量要求。連(lian)接(jie)線要使(shi)用絕緣導線，不(bu)(bu)(bu)得有漏(lou)電(dian)(dian)(dian)部分(fen)。工(gong)作零(ling)線要通(tong)過接(jie)線端子(zi)板連(lian)接(jie)，與保(bao)護零(ling)線接(jie)線端子(zi)板分(fen)設(she)；金(jin)屬(shu)箱(xiang)體、電(dian)(dian)(dian)器(qi)(qi)安裝(zhuang)板以及(ji)電(dian)(dian)(dian)器(qi)(qi)的(de)不(bu)(bu)(bu)應(ying)帶電(dian)(dian)(dian)金(jin)屬(shu)底(di)座，外殼(ke)必須有接(jie)零(ling)措(cuo)施(shi)。

環境溫(wen)度(du)(du)(du)對低(di)壓電器(qi)影響引起的(de)故障：配(pei)(pei)電箱(xiang)(xiang)(xiang)中的(de)低(di)壓電器(qi)，由熔(rong)斷器(qi)、交(jiao)流(liu)接觸器(qi)、剩余電流(liu)動(dong)作保護(hu)器(qi)、電容器(qi)及計量表等(deng)組成(cheng)。周(zhou)圍空氣溫(wen)度(du)(du)(du)的(de)上限不(bu)(bu)超過40℃；配(pei)(pei)電箱(xiang)(xiang)(xiang)箱(xiang)(xiang)(xiang)體(ti)(ti)選用(yong)的(de)鋼(gang)板厚(hou)(hou)度(du)(du)(du)不(bu)(bu)小(xiao)(xiao)于(yu)1。5mm，配(pei)(pei)電箱(xiang)(xiang)(xiang)箱(xiang)(xiang)(xiang)體(ti)(ti)厚(hou)(hou)度(du)(du)(du)不(bu)(bu)小(xiao)(xiao)于(yu)2。0mm厚(hou)(hou)度(du)(du)(du)的(de)冷軋鋼(gang)板制(zhi)成(cheng)，鋼(gang)板箱(xiang)(xiang)(xiang)門、鋼(gang)板盤面厚(hou)(hou)度(du)(du)(du)不(bu)(bu)小(xiao)(xiao)于(yu)2。0mm。背(bei)板的(de)厚(hou)(hou)度(du)(du)(du)不(bu)(bu)小(xiao)(xiao)于(yu)3。0mm。配(pei)(pei)電箱(xiang)(xiang)(xiang)均要(yao)求能在三級污染的(de)條件下運行，即(ji)配(pei)(pei)電箱(xiang)(xiang)(xiang)的(de)防護(hu)等(deng)級達到IP3X。所有箱(xiang)(xiang)(xiang)體(ti)(ti)用(yong)的(de)鋼(gang)板，型鋼(gang)必須在噴涂前進行除油、除銹磷化處理，其他金屬件均應要(yao)有防腐能力，。

配電(dian)(dian)(dian)(dian)箱(xiang)、開關(guan)箱(xiang)內(nei)的(de)(de)電(dian)(dian)(dian)(dian)器（含插(cha)座(zuo)）應先(xian)安裝(zhuang)(zhuang)在金(jin)(jin)屬或非木(mu)質阻燃絕(jue)緣電(dian)(dian)(dian)(dian)器安裝(zhuang)(zhuang)板上，然后方可(ke)整體緊固在配電(dian)(dian)(dian)(dian)箱(xiang)、開關(guan)箱(xiang)箱(xiang)體內(nei)。金(jin)(jin)屬電(dian)(dian)(dian)(dian)器安裝(zhuang)(zhuang)板與金(jin)(jin)屬箱(xiang)體應做(zuo)電(dian)(dian)(dian)(dian)氣連接。電(dian)(dian)(dian)(dian)器元件(jian)要求：配電(dian)(dian)(dian)(dian)箱(xiang)、開關(guan)箱(xiang)內(nei)電(dian)(dian)(dian)(dian)器元件(jian)必須可(ke)靠、完(wan)好(hao)，嚴禁使用(yong)(yong)破損、不合格電(dian)(dian)(dian)(dian)器。電(dian)(dian)(dian)(dian)器產(chan)品(pin)進場時(shi)(shi)必須審驗生產(chan)（制(zhi)造）許(xu)可(ke)證(zheng)、產(chan)品(pin)合格證(zheng)、產(chan)品(pin)說明書(shu)、出廠(chang)檢驗記錄。配電(dian)(dian)(dian)(dian)箱(xiang)的(de)(de)漏(lou)電(dian)(dian)(dian)(dian)保(bao)護(hu)(hu)措施，通常使用(yong)(yong)的(de)(de)是漏(lou)電(dian)(dian)(dian)(dian)保(bao)護(hu)(hu)器，就(jiu)是俗稱漏(lou)電(dian)(dian)(dian)(dian)開關(guan)，它是一(yi)種接地保(bao)護(hu)(hu)裝(zhuang)(zhuang)置(zhi)，當電(dian)(dian)(dian)(dian)路或用(yong)(yong)電(dian)(dian)(dian)(dian)設備(bei)漏(lou)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流大于裝(zhuang)(zhuang)置(zhi)的(de)(de)整定(ding)值，防爆配電(dian)(dian)(dian)(dian)箱(xiang)定(ding)做(zuo)廠(chang)家，或人、動(dong)(dong)物發生觸電(dian)(dian)(dian)(dian)危險時(shi)(shi)，它能迅速動(dong)(dong)作，切(qie)斷事故電(dian)(dian)(dian)(dian)源，。