配電(dian)箱(xiang)(xiang)中(zhong)的(de)(de)低壓電(dian)器(qi)，由(you)熔斷器(qi)、交流(liu)接觸器(qi)、剩(sheng)余電(dian)流(liu)動作保(bao)護(hu)器(qi)、電(dian)容器(qi)及計量表等(deng)組成。周(zhou)(zhou)圍(wei)空氣(qi)溫(wen)度(du)(du)的(de)(de)上限(xian)不超過(guo)40℃；周(zhou)(zhou)圍(wei)空氣(qi)溫(wen)度(du)(du)24h的(de)(de)平(ping)均值不超過(guo)35℃；周(zhou)(zhou)圍(wei)空氣(qi)溫(wen)度(du)(du)的(de)(de)下限(xian)不低于-5℃或(huo)-25℃。農(nong)網改造的(de)(de)配電(dian)箱(xiang)(xiang)在室外運行(xing)，它(ta)不但受到陽光(guang)的(de)(de)直接照(zhao)射產生(sheng)高(gao)溫(wen)，同時(shi)運行(xing)中(zhong)自(zi)身(shen)也會產生(sheng)熱量，所(suo)以在盛(sheng)夏高(gao)溫(wen)季節，箱(xiang)(xiang)體內的(de)(de)溫(wen)度(du)(du)將(jiang)會達(da)到60℃以上，這時(shi)的(de)(de)溫(wen)度(du)(du)大大超過(guo)了這些電(dian)器(qi)規定的(de)(de)環境溫(wen)度(du)(du)

在一條距離比較(jiao)長的線(xian)(xian)(xian)路上有多根(gen)小(xiao)面(mian)(mian)積(ji)電(dian)(dian)(dian)(dian)纜往往會造成(cheng)電(dian)(dian)(dian)(dian)纜使(shi)用(yong)(yong)浪費，于是(shi)在出線(xian)(xian)(xian)到用(yong)(yong)電(dian)(dian)(dian)(dian)負荷(he)中，往往使(shi)用(yong)(yong)主(zhu)干大電(dian)(dian)(dian)(dian)纜出線(xian)(xian)(xian)，然后在接近負荷(he)的時候，使(shi)用(yong)(yong)電(dian)(dian)(dian)(dian)纜分(fen)支箱將主(zhu)干電(dian)(dian)(dian)(dian)纜分(fen)成(cheng)若干小(xiao)面(mian)(mian)積(ji)，電(dian)(dian)(dian)(dian)纜，由小(xiao)面(mian)(mian)積(ji)電(dian)(dian)(dian)(dian)纜接入負荷(he)。這樣的接線(xian)(xian)(xian)方式廣泛用(yong)(yong)于城市電(dian)(dian)(dian)(dian)網中的路燈等供(gong)電(dian)(dian)(dian)(dian)、小(xiao)用(yong)(yong)戶供(gong)電(dian)(dian)(dian)(dian)。

必須選(xuan)用符合GB 6829《剩余電(dian)流動作保(bao)(bao)護(hu)(hu)器(qi)(qi)的(de)(de)一般要(yao)求(qiu)》標準、并經中國(guo)電(dian)工(gong)產品(pin)認證(zheng)委員會(hui)認證(zheng)合格的(de)(de)產品(pin)。可選(xuan)用類(lei)似LJM（J）系列(lie)節電(dian)型(xing)、且是低(di)靈敏度的(de)(de)延時(shi)型(xing)保(bao)(bao)護(hu)(hu)器(qi)(qi)。保(bao)(bao)護(hu)(hu)器(qi)(qi)裝(zhuang)(zhuang)置的(de)(de)方(fang)式要(yao)符合國(guo)家GB13955-2005《剩余電(dian)流動作保(bao)(bao)護(hu)(hu)裝(zhuang)(zhuang)置的(de)(de)安裝(zhuang)(zhuang)和運行》標準。漏電(dian)保(bao)(bao)護(hu)(hu)器(qi)(qi)的(de)(de)分斷時(shi)間，當漏電(dian)電(dian)流為額定漏電(dian)電(dian)流時(shi)，其動作時(shi)間不應大于0.s。

配電(dian)(dian)箱(xiang)是(shi)按電(dian)(dian)氣接(jie)線(xian)要求將開關(guan)設(she)備、測量儀表，保(bao)護電(dian)(dian)器和輔(fu)助設(she)備組(zu)裝在封(feng)閉或(huo)半封(feng)閉金屬柜中(zhong)(zhong)或(huo)屏幅(fu)上，構成低壓配電(dian)(dian)箱(xiang)。正常運(yun)行時(shi)可(ke)(ke)借助手動或(huo)自動開關(guan)接(jie)通或(huo)分斷電(dian)(dian)路(lu)。故障或(huo)不正常運(yun)行時(shi)借助保(bao)護電(dian)(dian)器切(qie)斷電(dian)(dian)路(lu)或(huo)報警。借測量儀表可(ke)(ke)顯示(shi)運(yun)行中(zhong)(zhong)的各種參數，還可(ke)(ke)對某些電(dian)(dian)氣參數進行調整，對偏離正常工(gong)作狀(zhuang)態進行提示(shi)或(huo)發出信號。

用軟刷或吹風清除屏板插件和全部電磁開關零件的積塵,分體式充電樁價格并檢查控制柜內電器開關觸頭的狀態,訂做分體式充電樁接觸(chu)情況,線圈外表的(de)絕(jue)緣以(yi)及機械部件的(de)動作是(shi)否可靠,更換(huan)熔絲時(shi),應使(shi)熔斷(duan)電(dian)流(liu)與該(gai)回(hui)路的(de)電(dian)流(liu)相匹配(pei)。