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)查，然后(hou)(hou)必須制(zhi)定配電(dian)柜的改造計劃。首先，人員應關(guan)閉電(dian)源(yuan)以(yi)采取(qu)保護(hu)措施，對配電(dian)柜設施進(jin)行徹底(di)檢(jian)(jian)查，并更換老(lao)化的電(dian)線(xian)，開關(guan)和燈。有(you)問題(ti)的設備應及時(shi)維(wei)修，并記錄檢(jian)(jian)查條件。檢(jian)(jian)查后(hou)(hou)，人員應組織檢(jian)(jian)查工具，以(yi)免因配電(dian)柜遺失工具而造成事故。

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。普通照明在進出電(dian)(dian)纜及其母線(xian)之間(jian)裝(zhuang)有保(bao)險絲(si)和其他設(she)備。如果輸(shu)出電(dian)(dian)纜被(bei)雷擊，并且(qie)輸(shu)入(ru)電(dian)(dian)纜保(bao)險絲(si)先被(bei)燒斷，則整(zheng)個(ge)配電(dian)(dian)箱將失去防(fang)雷保(bao)護。配電(dian)(dian)箱被(bei)雷擊損壞(huai)。建(jian)議在配電(dian)(dian)箱的入(ru)口和出口側(ce)安(an)裝(zhuang)氧化鋅避雷針(zhen)。

家用(yong)空(kong)氣開(kai)關分(fen)為單(dan)極(ji)(ji)和兩極(ji)(ji)（單(dan)開(kai)，雙開(kai)），單(dan)極(ji)(ji)在(zai)配(pei)(pei)電(dian)(dian)(dian)箱中(zhong)占(zhan)一個回(hui)路(lu)，雙極(ji)(ji)在(zai)配(pei)(pei)電(dian)(dian)(dian)箱中(zhong)占(zhan)兩個回(hui)路(lu)。通常，主開(kai)關（即主開(kai)關）使(shi)用(yong)兩極(ji)(ji)。該開(kai)關可(ke)同時控制火(huo)線(xian)(xian)和零線(xian)(xian)。其余饋線(xian)(xian)斷(duan)路(lu)器(qi)始終(zhong)使(shi)用(yong)單(dan)極(ji)(ji)。交換(huan)(huan)(huan)機(ji)必(bi)須(xu)連接(jie)到帶(dai)電(dian)(dian)(dian)電(dian)(dian)(dian)纜(lan)。開(kai)關的(de)兩極(ji)(ji)均(jun)為火(huo)線(xian)(xian)，零線(xian)(xian)連接(jie)至(zhi)端子。劃船，不要(yao)敞開(kai)。常熟(shu)交換(huan)(huan)(huan)機(ji)維修仔(zi)細檢(jian)查(cha)交換(huan)(huan)(huan)機(ji)和電(dian)(dian)(dian)源后，打開(kai)電(dian)(dian)(dian)源進行維修。由(you)于此時處于緊張狀(zhuang)態，因此必(bi)須(xu)確保安全。檢(jian)查(cha)時，請仔(zi)細測量開(kai)關的(de)特定模塊功(gong)率，記錄(lu)并調(diao)試開(kai)關的(de)脈沖(chong)寬度(du)，并嘗試使(shi)復雜(za)開(kai)關的(de)每個模塊的(de)功(gong)能正(zheng)常運行。如果在(zai)現場檢(jian)查(cha)和維護過(guo)程中(zhong)發現異常，應關閉(bi)電(dian)(dian)(dian)源，并更(geng)換(huan)(huan)(huan)異常模塊。