配電箱的進出線選用低壓電纜，富民歐式箱變電纜的選擇應符合技術要求。訂做歐式箱變例(li)如30kVA、50kVA變壓(ya)(ya)器的配(pei)電(dian)箱的進線(xian)使用(yong)(yong)(yong)VV22-35×4電(dian)纜(lan)，分路出(chu)線(xian)使用(yong)(yong)(yong)同規格(ge)的VLV22-35×4電(dian)纜(lan)；80kVA、100kVA變壓(ya)(ya)器的配(pei)電(dian)箱的進線(xian)分別使用(yong)(yong)(yong)VV22-50×4、VV22-70×4電(dian)纜(lan)，分路出(chu)線(xian)分別使用(yong)(yong)(yong)VLV22-50×4、VLV22-70×4電(dian)纜(lan),其電(dian)纜(lan)與銅鋁接(jie)線(xian)鼻(bi)壓(ya)(ya)接(jie)后再用(yong)(yong)(yong)螺(luo)栓(shuan)與配(pei)電(dian)箱內接(jie)線(xian)樁頭連接(jie)。

必須(xu)選用符合(he)GB 6829《剩(sheng)余電(dian)(dian)(dian)流動作(zuo)保(bao)護器(qi)的一般要求》標(biao)準(zhun)、并經中(zhong)國電(dian)(dian)(dian)工產品認(ren)證(zheng)委員會認(ren)證(zheng)合(he)格的產品。可選用類似LJM（J）系列節(jie)電(dian)(dian)(dian)型、且是低靈敏度的延(yan)時(shi)型保(bao)護器(qi)。保(bao)護器(qi)裝(zhuang)置的方式要符合(he)國家GB13955-2005《剩(sheng)余電(dian)(dian)(dian)流動作(zuo)保(bao)護裝(zhuang)置的安裝(zhuang)和運(yun)行》標(biao)準(zhun)。漏(lou)電(dian)(dian)(dian)保(bao)護器(qi)的分斷(duan)時(shi)間，當漏(lou)電(dian)(dian)(dian)電(dian)(dian)(dian)流為額(e)定(ding)漏(lou)電(dian)(dian)(dian)電(dian)(dian)(dian)流時(shi)，其動作(zuo)時(shi)間不應大于0.s。

配電(dian)(dian)(dian)(dian)變壓(ya)器(qi)(qi)的(de)(de)(de)低壓(ya)側總(zong)過流(liu)(liu)(liu)(liu)保(bao)護熔(rong)(rong)斷器(qi)(qi)的(de)(de)(de)額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，應(ying)(ying)大(da)于(yu)配電(dian)(dian)(dian)(dian)變壓(ya)器(qi)(qi)的(de)(de)(de)低壓(ya)側額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，一(yi)般取額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)1.5倍，熔(rong)(rong)體的(de)(de)(de)額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)應(ying)(ying)按(an)(an)變壓(ya)器(qi)(qi)允許的(de)(de)(de)過負荷(he)倍數和(he)熔(rong)(rong)斷器(qi)(qi)特性確定(ding)。出線回(hui)(hui)路過流(liu)(liu)(liu)(liu)保(bao)護熔(rong)(rong)斷器(qi)(qi)的(de)(de)(de)熔(rong)(rong)體額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，不應(ying)(ying)大(da)于(yu)總(zong)過流(liu)(liu)(liu)(liu)保(bao)護熔(rong)(rong)斷器(qi)(qi)的(de)(de)(de)額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，熔(rong)(rong)體的(de)(de)(de)額(e)(e)(e)(e)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)按(an)(an)回(hui)(hui)路正常最大(da)負荷(he)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)選擇，并應(ying)(ying)躲(duo)過正常的(de)(de)(de)尖峰電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)。

暗(an)裝(zhuang)配電箱(xiang)(xiang)，配電箱(xiang)(xiang)嵌(qian)入墻內(nei)安裝(zhuang)，在砌墻時預(yu)留孔洞(dong)應比配電箱(xiang)(xiang)的長和寬各大20mm左(zuo)右，預(yu)留的深度(du)為(wei)配電箱(xiang)(xiang)厚(hou)度(du)加(jia)上洞(dong)內(nei)壁抹灰的厚(hou)度(du)。在圬埋配電箱(xiang)(xiang)時，箱(xiang)(xiang)體(ti)與墻之間填以混凝土即可把(ba)箱(xiang)(xiang)體(ti)固定住。