的改裝必須由專業人員進行。在繼續之前，必須對原始配電柜進(jin)行徹底(di)檢(jian)(jian)(jian)(jian)查(cha)，然后必須制定配電(dian)(dian)柜的改造(zao)計(ji)劃。首先，人(ren)員應(ying)關閉(bi)電(dian)(dian)源以采取保護措施，對(dui)配電(dian)(dian)柜設(she)施進(jin)行徹底(di)檢(jian)(jian)(jian)(jian)查(cha)，并更(geng)換老化(hua)的電(dian)(dian)線，開關和燈。有問題的設(she)備應(ying)及時維修，并記錄檢(jian)(jian)(jian)(jian)查(cha)條件(jian)。檢(jian)(jian)(jian)(jian)查(cha)后，人(ren)員應(ying)組織檢(jian)(jian)(jian)(jian)查(cha)工具，以免因(yin)配電(dian)(dian)柜遺失工具而造(zao)成事(shi)故。

高壓配電柜僅將避雷針安裝在進線的一側。雷電防護不能覆蓋所有設備。普通照明在(zai)(zai)進出(chu)電纜(lan)及其(qi)母線之間裝有(you)保險(xian)絲(si)(si)和其(qi)他設備。如果輸(shu)出(chu)電纜(lan)被(bei)雷(lei)(lei)擊(ji)，并且輸(shu)入電纜(lan)保險(xian)絲(si)(si)先(xian)被(bei)燒斷，則(ze)整個配電箱(xiang)將失去防雷(lei)(lei)保護。配電箱(xiang)被(bei)雷(lei)(lei)擊(ji)損壞。建議在(zai)(zai)配電箱(xiang)的(de)入口(kou)和出(chu)口(kou)側安裝氧(yang)化(hua)鋅避雷(lei)(lei)針。

家(jia)用(yong)空氣(qi)開(kai)關(guan)(guan)分為(wei)單(dan)極(ji)和兩(liang)極(ji)（單(dan)開(kai)，雙開(kai)），單(dan)極(ji)在(zai)(zai)配(pei)電(dian)(dian)(dian)(dian)箱中占(zhan)(zhan)一(yi)個回路，雙極(ji)在(zai)(zai)配(pei)電(dian)(dian)(dian)(dian)箱中占(zhan)(zhan)兩(liang)個回路。通常(chang)，主開(kai)關(guan)(guan)（即(ji)主開(kai)關(guan)(guan)）使(shi)(shi)用(yong)兩(liang)極(ji)。該開(kai)關(guan)(guan)可(ke)同(tong)時控制火(huo)(huo)線(xian)(xian)和零線(xian)(xian)。其余饋線(xian)(xian)斷(duan)路器始終(zhong)使(shi)(shi)用(yong)單(dan)極(ji)。交(jiao)換機(ji)必須連接到帶電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)纜(lan)。開(kai)關(guan)(guan)的(de)兩(liang)極(ji)均為(wei)火(huo)(huo)線(xian)(xian)，零線(xian)(xian)連接至端子。劃船，不要敞(chang)開(kai)。常(chang)熟交(jiao)換機(ji)維(wei)修(xiu)仔(zi)細檢(jian)查(cha)交(jiao)換機(ji)和電(dian)(dian)(dian)(dian)源(yuan)(yuan)后(hou)，打開(kai)電(dian)(dian)(dian)(dian)源(yuan)(yuan)進行維(wei)修(xiu)。由于(yu)(yu)此(ci)時處于(yu)(yu)緊張狀態，因此(ci)必須確保(bao)安全。檢(jian)查(cha)時，請仔(zi)細測量開(kai)關(guan)(guan)的(de)特定模(mo)塊功率，記錄并(bing)調(diao)試開(kai)關(guan)(guan)的(de)脈(mo)沖(chong)寬度，并(bing)嘗試使(shi)(shi)復雜開(kai)關(guan)(guan)的(de)每個模(mo)塊的(de)功能正常(chang)運行。如果在(zai)(zai)現場檢(jian)查(cha)和維(wei)護過程中發現異常(chang)，應關(guan)(guan)閉(bi)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，并(bing)更換異常(chang)模(mo)塊。