MESS型(xing)低壓(ya)(ya)抽出(chu)式開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)（以(yi)(yi)下(xia)(xia)簡稱開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)），適(shi)用(yong)(yong)(yong)(yong)(yong)于交流50-60Hz，額定工(gong)作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)660V及以(yi)(yi)下(xia)(xia)的(de)(de)(de)(de)控(kong)配電(dian)(dian)(dian)(dian)(dian)系統。主要使用(yong)(yong)(yong)(yong)(yong)于發電(dian)(dian)(dian)(dian)(dian)廠、變電(dian)(dian)(dian)(dian)(dian)站、工(gong)礦企業等電(dian)(dian)(dian)(dian)(dian)力(li)用(yong)(yong)(yong)(yong)(yong)戶，作為接(jie)(jie)受和分(fen)配電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)之(zhi)用(yong)(yong)(yong)(yong)(yong)，并具(ju)(ju)有(you)對電(dian)(dian)(dian)(dian)(dian)路進行控(kong)制、保護(hu)和檢測等功(gong)(gong)能(neng)(neng)。
功(gong)(gong)能(neng)(neng)特點：
設計(ji)采用(yong)(yong)(yong)(yong)(yong)IEC439、GB7251標(biao)準(zhun)
框(kuang)架采用(yong)(yong)(yong)(yong)(yong)鍍鋅鋼板(ban)(ban)，“C”字型(xing)型(xing)材以(yi)(yi)鉚釘及自(zi)攻螺(luo)絲結合成堅固的(de)(de)(de)(de)一體。柜(ju)(ju)內(nei)(nei)部(bu)尺寸、隔(ge)(ge)室尺寸實行模數化(hua)，同一規格的(de)(de)(de)(de)功(gong)(gong)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)(yuan)可(ke)互換。
低壓(ya)(ya)開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)在(zai)短路故(gu)障時(shi)能(neng)(neng)承受由(you)此引起的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)氣、熱及機械應力(li)。在(zai)故(gu)障條件下(xia)(xia)所產生的(de)(de)(de)(de)氣體通過(guo)(guo)壓(ya)(ya)力(li)釋放(fang)口排(pai)(pai)(pai)(pai)放(fang)，壓(ya)(ya)力(li)釋放(fang)口的(de)(de)(de)(de)位置(zhi)不(bu)朝向操作人員。
開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)的(de)(de)(de)(de)主母(mu)線(xian)(xian)室、支母(mu)線(xian)(xian)室、功(gong)(gong)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)(yuan)室和電(dian)(dian)(dian)(dian)(dian)纜(lan)室以(yi)(yi)及功(gong)(gong)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)(yuan)室之(zhi)間(jian)采用(yong)(yong)(yong)(yong)(yong)全隔(ge)(ge)離設計(ji)，這種內(nei)(nei)部(bu)分(fen)隔(ge)(ge)設計(ji)可(ke)將電(dian)(dian)(dian)(dian)(dian)弧(hu)的(de)(de)(de)(de)破壞性降到小的(de)(de)(de)(de)程度。
框(kuang)架無任何焊(han)接(jie)(jie)點。組(zu)裝(zhuang)時(shi)采用(yong)(yong)(yong)(yong)(yong)特殊的(de)(de)(de)(de)夾具(ju)(ju)，保證很(hen)高的(de)(de)(de)(de)裝(zhuang)配精度。
各功(gong)(gong)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)(yuan)均裝(zhuang)有(you)門(men)(men)（或(huo)(huo)面板(ban)(ban)），并裝(zhuang)有(you)鉸鏈和鎖，裝(zhuang)有(you)設備的(de)(de)(de)(de)門(men)(men)不(bu)會由(you)于重量或(huo)(huo)大小而引起下(xia)(xia)垂(chui)。
開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)的(de)(de)(de)(de)功(gong)(gong)能(neng)(neng)單(dan)(dan)元(yuan)(yuan)(yuan)小室設有(you)過(guo)(guo)壓(ya)(ya)釋放(fang)通道(dao)，在(zai)故(gu)障情況下(xia)(xia)產生的(de)(de)(de)(de)氣體均可(ke)通過(guo)(guo)壓(ya)(ya)力(li)釋放(fang)口排(pai)(pai)(pai)(pai)出(chu)。
柜(ju)(ju)體可(ke)按(an)工(gong)程需要設計(ji)為電(dian)(dian)(dian)(dian)(dian)纜(lan)或(huo)(huo)母(mu)線(xian)(xian)“上(shang)進上(shang)出(chu)” “上(shang)進下(xia)(xia)出(chu)”和“下(xia)(xia)進下(xia)(xia)出(chu)”的(de)(de)(de)(de)接(jie)(jie)線(xian)(xian)方(fang)式。
表面處理
每臺低壓(ya)(ya)開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)門(men)(men)和終端封板(ban)(ban)采用(yong)(yong)(yong)(yong)(yong)環氧(yang)樹脂靜電(dian)(dian)(dian)(dian)(dian)粉末(mo)噴涂，噴涂層不(bu)小于50微米，噴涂前將進行除油、除銹或(huo)(huo)磷化(hua)處理，采用(yong)(yong)(yong)(yong)(yong)上(shang)述(shu)處理方(fang)法(fa)使開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)外殼具(ju)(ju)有(you)很(hen)強的(de)(de)(de)(de)防腐能(neng)(neng)力(li)。
柜(ju)(ju)體顏色可(ke)由(you)我方(fang)推薦，用(yong)(yong)(yong)(yong)(yong)戶確(que)定。
母(mu)排(pai)(pai)(pai)(pai)
母(mu)排(pai)(pai)(pai)(pai)系統符合ZBK36001-89、IEC439、IEC694標(biao)準(zhun)，柜(ju)(ju)內(nei)(nei)母(mu)排(pai)(pai)(pai)(pai)置(zhi)于低壓(ya)(ya)開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)的(de)(de)(de)(de)專(zhuan)用(yong)(yong)(yong)(yong)(yong)母(mu)線(xian)(xian)室內(nei)(nei)。
母(mu)排(pai)(pai)(pai)(pai)材料(liao)選擇按(an)IEC431標(biao)準(zhun)采用(yong)(yong)(yong)(yong)(yong)剛性硬拉高導電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)解(jie)銅。
母(mu)排(pai)(pai)(pai)(pai)的(de)(de)(de)(de)相色、排(pai)(pai)(pai)(pai)列順(shun)序(xu)均符合IEC439、GB7251標(biao)準(zhun)。
母(mu)排(pai)(pai)(pai)(pai)的(de)(de)(de)(de)夾緊螺(luo)栓(shuan)(shuan)采用(yong)(yong)(yong)(yong)(yong)高強度的(de)(de)(de)(de)螺(luo)栓(shuan)(shuan)，使母(mu)排(pai)(pai)(pai)(pai)安裝(zhuang)方(fang)便(bian)、靈活而且十分(fen)牢固。
開(kai)(kai)關(guan)(guan)(guan)柜(ju)(ju)內(nei)(nei)可(ke)設獨立的(de)(de)(de)(de)PE接(jie)(jie)地系統和N中性導體，二者貫穿(chuan)整個裝(zhuang)置(zhi)，各回(hui)路接(jie)(jie)地或(huo)(huo)接(jie)(jie)零都(dou)可(ke)就(jiu)近(jin)聯(lian)接(jie)(jie)；
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