這類(lei)開(kai)(kai)關(guan)柜(ju)(ju)采(cai)用(yong)鋼板(ban)制成(cheng)(cheng)封閉外殼，進出線回路的(de)電器元件都安裝(zhuang)在可抽(chou)出的(de)抽(chou)屜(ti)(ti)中(zhong)(zhong)，構成(cheng)(cheng)能(neng)(neng)完成(cheng)(cheng)某一類(lei)供(gong)電任(ren)務的(de)功能(neng)(neng)單(dan)元。功能(neng)(neng)單(dan)元與母線或電纜之間，用(yong)接地的(de)金屬板(ban)或塑料制成(cheng)(cheng)的(de)功能(neng)(neng)板(ban)隔(ge)開(kai)(kai)，形成(cheng)(cheng)母線、功能(neng)(neng)單(dan)元和(he)電纜三個區域。每個功能(neng)(neng)單(dan)元之間也有隔(ge)離(li)措施。抽(chou)屜(ti)(ti)式(shi)(shi)開(kai)(kai)關(guan)柜(ju)(ju)有較高的(de)可靠性(xing)、安全(quan)性(xing)和(he)互換性(xing)，是比較先進的(de)開(kai)(kai)關(guan)柜(ju)(ju)，開(kai)(kai)關(guan)柜(ju)(ju)多數是指抽(chou)屜(ti)(ti)式(shi)(shi)開(kai)(kai)關(guan)柜(ju)(ju)。它(ta)們適用(yong)于要求供(gong)電可靠性(xing)較高的(de)工礦企業、高層(ceng)建(jian)筑，作(zuo)為集中(zhong)(zhong)控(kong)制的(de)配電中(zhong)(zhong)心。

暗裝配電箱，配電箱嵌入墻內安裝，電表箱在砌墻時預留孔洞應比配電箱的長和寬各大20mm左右，電表箱價格預留的深度(du)(du)為配電箱(xiang)厚度(du)(du)加上(shang)洞內壁(bi)抹(mo)灰(hui)的厚度(du)(du)。在圬埋配電箱(xiang)時，箱(xiang)體與墻之間(jian)填以混凝(ning)土即(ji)可把箱(xiang)體固(gu)定住。

改進原(yuan)配電(dian)(dian)箱的低壓電(dian)(dian)容(rong)(rong)(rong)器(qi)(qi)組的接(jie)(jie)線(xian)方式，將(jiang)其安(an)裝位置由(you)交流接(jie)(jie)觸器(qi)(qi)上樁(zhuang)頭，改成接(jie)(jie)在(zai)配電(dian)(dian)箱低壓進線(xian)與(yu)計(ji)量(liang)表計(ji)之間。防止因運(yun)行中電(dian)(dian)容(rong)(rong)(rong)器(qi)(qi)電(dian)(dian)路發生缺相故障或電(dian)(dian)容(rong)(rong)(rong)器(qi)(qi)損壞時，造成計(ji)量(liang)裝置計(ji)量(liang)不準(zhun)確。此外，電(dian)(dian)容(rong)(rong)(rong)器(qi)(qi)選擇型號應為BSMJ系列(lie)產品(pin)，以保證元件質(zhi)量(liang)可靠(kao)、安(an)全運(yun)行。

充(chong)(chong)(chong)電(dian)(dian)樁一(yi)般提供(gong)常規充(chong)(chong)(chong)電(dian)(dian)和快速充(chong)(chong)(chong)電(dian)(dian)兩種充(chong)(chong)(chong)電(dian)(dian)方(fang)式(shi)(shi)，人們可(ke)以使(shi)用特定的(de)充(chong)(chong)(chong)電(dian)(dian)卡在充(chong)(chong)(chong)電(dian)(dian)樁提供(gong)的(de)人機(ji)交互操(cao)作(zuo)界面(mian)上刷卡使(shi)用，進行相應(ying)的(de)充(chong)(chong)(chong)電(dian)(dian)方(fang)式(shi)(shi)、充(chong)(chong)(chong)電(dian)(dian)時(shi)間、費用數據(ju)打印等(deng)操(cao)作(zuo)，充(chong)(chong)(chong)電(dian)(dian)樁顯示屏能(neng)顯示充(chong)(chong)(chong)電(dian)(dian)量、費用、充(chong)(chong)(chong)電(dian)(dian)時(shi)間等(deng)數據(ju)。