在農網改造中當時由(you)于需(xu)求的(de)配(pei)電(dian)箱(xiang)數(shu)量(liang)大(da)、施工期(qi)短，配(pei)電(dian)箱(xiang)廠(chang)需(xu)要有關低壓電(dian)器(qi)(qi)的(de)供貨時間急且數(shu)量(liang)多，因而(er)產(chan)生了對產(chan)品質(zhi)量(liang)的(de)要求不(bu)嚴(yan)格(ge)的(de)現象，造成(cheng)了一些產(chan)品投(tou)入運(yun)行后(hou)不(bu)久就(jiu)發生故障(zhang)。如(ru)有些型號(hao)交(jiao)流接(jie)觸(chu)器(qi)(qi)在配(pei)電(dian)箱(xiang)投(tou)運(yun)后(hou)不(bu)久，就(jiu)因接(jie)觸(chu)器(qi)(qi)合閘(zha)線圈(quan)燒(shao)壞，而(er)無法運(yun)行。

這類開(kai)關柜(ju)采用(yong)(yong)鋼(gang)板(ban)制成(cheng)封閉外殼，進(jin)出線回路的(de)電器元件都(dou)安(an)裝在可(ke)抽(chou)出的(de)抽(chou)屜中(zhong)，構(gou)成(cheng)能(neng)完成(cheng)某一(yi)類供電任(ren)務(wu)的(de)功(gong)(gong)(gong)能(neng)單元。功(gong)(gong)(gong)能(neng)單元與母(mu)線或電纜之(zhi)間，用(yong)(yong)接地(di)的(de)金屬板(ban)或塑料制成(cheng)的(de)功(gong)(gong)(gong)能(neng)板(ban)隔(ge)開(kai)，形成(cheng)母(mu)線、功(gong)(gong)(gong)能(neng)單元和(he)(he)電纜三個(ge)區(qu)域。每個(ge)功(gong)(gong)(gong)能(neng)單元之(zhi)間也有隔(ge)離措施。抽(chou)屜式(shi)開(kai)關柜(ju)有較高(gao)(gao)的(de)可(ke)靠性(xing)、安(an)全性(xing)和(he)(he)互換(huan)性(xing)，是比較先(xian)進(jin)的(de)開(kai)關柜(ju)，開(kai)關柜(ju)多數是指抽(chou)屜式(shi)開(kai)關柜(ju)。它們(men)適用(yong)(yong)于要求供電可(ke)靠性(xing)較高(gao)(gao)的(de)工礦企業、高(gao)(gao)層建筑，作為集中(zhong)控制的(de)配電中(zhong)心。

由于(yu)電(dian)(dian)(dian)(dian)動(dong)汽車每天需(xu)要補(bu)充(chong)(chong)大(da)(da)量(liang)電(dian)(dian)(dian)(dian)能(neng)，經(jing)營(ying)充(chong)(chong)電(dian)(dian)(dian)(dian)站就可以(yi)獲(huo)得巨大(da)(da)的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)服務(wu)收益。相對(dui)(dui)于(yu)加油站，電(dian)(dian)(dian)(dian)能(neng)比較安全和(he)方(fang)便(bian)，可在(zai)各地大(da)(da)量(liang)安裝(zhuang)設置充(chong)(chong)電(dian)(dian)(dian)(dian)站。根據投資(zi)規模，小到社區(qu)慢速充(chong)(chong)電(dian)(dian)(dian)(dian)樁，大(da)(da)到公(gong)路快(kuai)速充(chong)(chong)電(dian)(dian)(dian)(dian)站，單站經(jing)營(ying)，組網(wang)(wang)經(jing)營(ying)均(jun)可。對(dui)(dui)于(yu)充(chong)(chong)電(dian)(dian)(dian)(dian)站市(shi)場的(de)(de)開放，國家電(dian)(dian)(dian)(dian)網(wang)(wang)以(yi)后(hou)可能(neng)更多地會偏(pian)向服務(wu)和(he)電(dian)(dian)(dian)(dian)力(li)供應，讓(rang)充(chong)(chong)電(dian)(dian)(dian)(dian)站建設更充(chong)(chong)分地與市(shi)場融(rong)合(he)，大(da)(da)家都將是同一個(ge)市(shi)場的(de)(de)競(jing)爭者(zhe)。因此提(ti)前準備、提(ti)前規劃，對(dui)(dui)從事電(dian)(dian)(dian)(dian)池(chi)生產的(de)(de)企(qi)業來說很重要。充(chong)(chong)換電(dian)(dian)(dian)(dian)市(shi)場，政策有(you)傾斜(xie)，市(shi)場有(you)潛力(li)，投資(zi)又少，將面臨較大(da)(da)的(de)(de)商機(ji)。

在非金屬材料中，生產分支箱纖維增強聚酯材料有著優秀的抗老化性能。經過抗老化性能測試表明，使用地點不同，所處氣候帶不同，其表面最大老化厚度為20年小于50μm。大多數箱體的最小厚度為5mm，小于箱體厚度的1%，因此對箱體的機械性能沒有明顯的影響。分支箱哪家好令外(wai)該公司采取了(le)一種(zhong)特殊的耐紫(zi)外(wai)線(xian)表面處理工藝，更加強化(hua)了(le)其耐老(lao)化(hua)性能(neng)。

配電(dian)(dian)箱中(zhong)的(de)(de)(de)(de)低壓電(dian)(dian)器，由熔(rong)斷器、交(jiao)流接觸器、剩余電(dian)(dian)流動作保護器、電(dian)(dian)容(rong)器及計量表等組成。周圍空氣(qi)(qi)溫(wen)(wen)(wen)(wen)度的(de)(de)(de)(de)上(shang)限不超(chao)過40℃；周圍空氣(qi)(qi)溫(wen)(wen)(wen)(wen)度24h的(de)(de)(de)(de)平均(jun)值不超(chao)過35℃；周圍空氣(qi)(qi)溫(wen)(wen)(wen)(wen)度的(de)(de)(de)(de)下(xia)限不低于-5℃或(huo)-25℃。農(nong)網改(gai)造的(de)(de)(de)(de)配電(dian)(dian)箱在室外運(yun)行(xing)，它(ta)不但受(shou)到陽光的(de)(de)(de)(de)直(zhi)接照射產生(sheng)高溫(wen)(wen)(wen)(wen)，同時運(yun)行(xing)中(zhong)自身也(ye)會(hui)產生(sheng)熱(re)量，所以(yi)在盛夏高溫(wen)(wen)(wen)(wen)季(ji)節，箱體內的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)度將會(hui)達到60℃以(yi)上(shang)，這時的(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)度大(da)大(da)超(chao)過了(le)這些電(dian)(dian)器規定(ding)的(de)(de)(de)(de)環境溫(wen)(wen)(wen)(wen)度