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配電箱生產廠家的配電柜體(ti)(ti)部(bu)分的(de)加工方法與固定柜體(ti)(ti)基(ji)本相(xiang)似。但由于更(geng)換要求(qiu),必(bi)須(xu)提高柜體(ti)(ti)的(de)精度(du),結構的(de)相(xiang)關部(bu)位必(bi)須(xu)有足夠(gou)的(de)調整。機(ji)械強度(du)高、精度(du)高,其相(xiang)關部(bu)件應有足夠(gou)的(de)調整。
火(huo)災(zai)發生后,電(dian)(dian)(dian)氣設備(bei)可(ke)(ke)能(neng)(neng)(neng)因絕(jue)緣損壞而(er)短路(lu)(lu);電(dian)(dian)(dian)線可(ke)(ke)能(neng)(neng)(neng)會(hui)因斷(duan)線而(er)對地短路(lu)(lu),這可(ke)(ke)能(neng)(neng)(neng)導致金屬框架和地線等帶(dai)電(dian)(dian)(dian)部件通(tong)常不帶(dai)電(dian)(dian)(dian),也(ye)可(ke)(ke)能(neng)(neng)(neng)導致接(jie)觸電(dian)(dian)(dian)壓或跨(kua)步電(dian)(dian)(dian)壓。觸電(dian)(dian)(dian)危險。因此,一旦(dan)發現(xian)火(huo)災(zai),首先要做的就是(shi)切斷(duan)電(dian)(dian)(dian)源。切斷(duan)電(dian)(dian)(dian)源時,請注意以下幾點(dian):
1、火災發生后,受潮、冒(mao)煙,開(kai)關柜的絕緣(yuan)(yuan)能力會降低。因此,在(zai)打(da)開(kai)開(kai)關時盡量(liang)使用(yong)絕緣(yuan)(yuan)工(gong)具進行操作。2、對于高壓,應先操作斷路(lu)器(qi),而不(bu)是隔離開關(guan),切斷電(dian)(dian)(dian)源。對于低電(dian)(dian)(dian)壓,應先操作電(dian)(dian)(dian)磁啟動器(qi),而不(bu)是刀(dao)開關(guan),切斷電(dian)(dian)(dian)源,以免產生(sheng)電(dian)(dian)(dian)弧短路(lu)。
3. 鐵制配電箱均需涮一遍防銹漆,再涮灰油漆二道,預埋的各種鐵件均應刷防銹漆,并做好明顯接地。導線引出面板時面板線孔應光滑無毛刺,金屬面板應裝設絕緣保護套。4、剪(jian)(jian)線時,應在(zai)(zai)不同部位(wei)剪(jian)(jian)斷(duan)不同相線,以(yi)(yi)免短路。在(zai)(zai)空中剪(jian)(jian)斷(duan)電(dian)(dian)線時,剪(jian)(jian)斷(duan)位(wei)置(zhi)應選擇電(dian)(dian)源方向靠近支架的(de)位(wei)置(zhi),以(yi)(yi)防電(dian)(dian)線被剪(jian)(jian)斷(duan)脫落,造成對地短路和(he)觸(chu)電(dian)(dian)。