對(dui)于(yu)配電變(bian)壓器(qi)容量(liang)(liang)在100kV·A及(ji)以(yi)上的配電箱體，在箱內散熱(re)窗靠側壁處，應(ying)考慮到(dao)安裝(zhuang)溫(wen)控繼電器(qi)（JU-3型(xing)或(huo)JU-4超小型(xing)溫(wen)度繼電器(qi)）和軸流(liu)風機，安裝(zhuang)在控制電器(qi)板(ban)上方左側面的箱體上，以(yi)便使箱內溫(wen)度達到(dao)一定值時（如40℃）能自動(dong)(dong)啟動(dong)(dong)排氣扇，強行排出熱(re)量(liang)(liang)以(yi)使箱體散熱(re)。

這類開關(guan)(guan)柜(ju)采用鋼板制(zhi)(zhi)成(cheng)(cheng)封閉外(wai)殼，進出線回路的(de)電(dian)器元件(jian)都安裝在可(ke)抽(chou)(chou)出的(de)抽(chou)(chou)屜(ti)(ti)中(zhong)，構成(cheng)(cheng)能(neng)完(wan)成(cheng)(cheng)某一類供電(dian)任務的(de)功能(neng)單(dan)元。功能(neng)單(dan)元與母線或電(dian)纜之(zhi)間，用接地的(de)金(jin)屬板或塑料制(zhi)(zhi)成(cheng)(cheng)的(de)功能(neng)板隔開，形(xing)成(cheng)(cheng)母線、功能(neng)單(dan)元和電(dian)纜三個(ge)區域(yu)。每個(ge)功能(neng)單(dan)元之(zhi)間也有隔離措施。抽(chou)(chou)屜(ti)(ti)式開關(guan)(guan)柜(ju)有較高(gao)的(de)可(ke)靠(kao)性(xing)、安全(quan)性(xing)和互換性(xing)，是(shi)比較先進的(de)開關(guan)(guan)柜(ju)，開關(guan)(guan)柜(ju)多數是(shi)指抽(chou)(chou)屜(ti)(ti)式開關(guan)(guan)柜(ju)。它們適(shi)用于要求供電(dian)可(ke)靠(kao)性(xing)較高(gao)的(de)工礦(kuang)企(qi)業、高(gao)層建筑，作為集中(zhong)控制(zhi)(zhi)的(de)配電(dian)中(zhong)心。

由于電(dian)(dian)(dian)(dian)動(dong)汽(qi)車每天需要補充(chong)大(da)(da)(da)量電(dian)(dian)(dian)(dian)能，經營充(chong)電(dian)(dian)(dian)(dian)站(zhan)(zhan)就(jiu)可(ke)以獲得巨大(da)(da)(da)的(de)(de)充(chong)電(dian)(dian)(dian)(dian)服務收益。相對于加油站(zhan)(zhan)，電(dian)(dian)(dian)(dian)能比(bi)較(jiao)安(an)全(quan)和(he)方便，可(ke)在各地大(da)(da)(da)量安(an)裝設(she)置(zhi)充(chong)電(dian)(dian)(dian)(dian)站(zhan)(zhan)。根據投資規(gui)模(mo)，小到社區慢速充(chong)電(dian)(dian)(dian)(dian)樁，大(da)(da)(da)到公路快(kuai)速充(chong)電(dian)(dian)(dian)(dian)站(zhan)(zhan)，單站(zhan)(zhan)經營，組網(wang)經營均(jun)可(ke)。對于充(chong)電(dian)(dian)(dian)(dian)站(zhan)(zhan)市場(chang)的(de)(de)開放(fang)，國家電(dian)(dian)(dian)(dian)網(wang)以后可(ke)能更(geng)多地會偏向服務和(he)電(dian)(dian)(dian)(dian)力供應，讓充(chong)電(dian)(dian)(dian)(dian)站(zhan)(zhan)建設(she)更(geng)充(chong)分地與市場(chang)融(rong)合(he)，大(da)(da)(da)家都(dou)將(jiang)是同一個(ge)市場(chang)的(de)(de)競爭者。因此提前(qian)準備、提前(qian)規(gui)劃，對從事電(dian)(dian)(dian)(dian)池(chi)生產的(de)(de)企業來說很重要。充(chong)換電(dian)(dian)(dian)(dian)市場(chang)，政策有傾斜，市場(chang)有潛力，投資又少，將(jiang)面臨較(jiao)大(da)(da)(da)的(de)(de)商機(ji)。

即地面充電裝置，專業戶外開閉所主要包括專用充電機、戶外開閉所廠家專(zhuan)用(yong)充(chong)電(dian)(dian)(dian)站、通(tong)用(yong)充(chong)電(dian)(dian)(dian)機、公共場所用(yong)充(chong)電(dian)(dian)(dian)站等(deng)。它可以(yi)滿足(zu)各(ge)種(zhong)電(dian)(dian)(dian)池(chi)的各(ge)種(zhong)充(chong)電(dian)(dian)(dian)方式(shi)。通(tong)常非車載充(chong)電(dian)(dian)(dian)器(qi)的功率、體積和重(zhong)量均比較大，以(yi)便能(neng)夠適應(ying)各(ge)種(zhong)充(chong)電(dian)(dian)(dian)方式(shi)。

配電(dian)箱中(zhong)的(de)(de)(de)(de)低壓電(dian)器，由熔斷器、交流接觸(chu)器、剩余電(dian)流動作保(bao)護器、電(dian)容器及計量(liang)(liang)表(biao)等組成。周(zhou)(zhou)圍(wei)空氣溫(wen)度(du)的(de)(de)(de)(de)上(shang)限(xian)不超過40℃；周(zhou)(zhou)圍(wei)空氣溫(wen)度(du)24h的(de)(de)(de)(de)平均值不超過35℃；周(zhou)(zhou)圍(wei)空氣溫(wen)度(du)的(de)(de)(de)(de)下限(xian)不低于-5℃或-25℃。農網改造的(de)(de)(de)(de)配電(dian)箱在室外運行，它不但受到陽光的(de)(de)(de)(de)直接照射產生高溫(wen)，同(tong)時運行中(zhong)自身也會(hui)產生熱量(liang)(liang)，所以在盛夏高溫(wen)季(ji)節(jie)，箱體內的(de)(de)(de)(de)溫(wen)度(du)將會(hui)達到60℃以上(shang)，這(zhe)時的(de)(de)(de)(de)溫(wen)度(du)大大超過了這(zhe)些電(dian)器規(gui)定(ding)的(de)(de)(de)(de)環(huan)境(jing)溫(wen)度(du)