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行(xing)徹底(di)檢(jian)查(cha)，然(ran)后(hou)必須制定(ding)配(pei)電柜(ju)(ju)的改(gai)造(zao)計劃(hua)。首先，人(ren)(ren)員應關(guan)閉電源以(yi)采取保護措(cuo)施(shi)，對配(pei)電柜(ju)(ju)設施(shi)進行(xing)徹底(di)檢(jian)查(cha)，并更換(huan)老(lao)化的電線(xian)，開關(guan)和燈。有問題的設備應及時維修，并記錄檢(jian)查(cha)條(tiao)件。檢(jian)查(cha)后(hou)，人(ren)(ren)員應組織檢(jian)查(cha)工(gong)具，以(yi)免因配(pei)電柜(ju)(ju)遺失工(gong)具而造(zao)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(zai)(zai)進出電(dian)(dian)(dian)纜(lan)及其(qi)(qi)母線之(zhi)間裝有(you)保(bao)險(xian)(xian)絲(si)和其(qi)(qi)他設(she)備。如果(guo)輸(shu)出電(dian)(dian)(dian)纜(lan)被雷擊(ji)，并且輸(shu)入(ru)電(dian)(dian)(dian)纜(lan)保(bao)險(xian)(xian)絲(si)先(xian)被燒斷，則(ze)整(zheng)個配電(dian)(dian)(dian)箱(xiang)將失去防雷保(bao)護。配電(dian)(dian)(dian)箱(xiang)被雷擊(ji)損壞。建議在(zai)(zai)配電(dian)(dian)(dian)箱(xiang)的入(ru)口和出口側安裝氧化鋅避雷針。

家用(yong)空(kong)氣開(kai)關(guan)(guan)分為單極(ji)(ji)和(he)兩(liang)極(ji)(ji)（單開(kai)，雙開(kai)），單極(ji)(ji)在(zai)配(pei)電(dian)(dian)(dian)箱(xiang)中(zhong)占一個(ge)回(hui)路，雙極(ji)(ji)在(zai)配(pei)電(dian)(dian)(dian)箱(xiang)中(zhong)占兩(liang)個(ge)回(hui)路。通常(chang)，主(zhu)(zhu)開(kai)關(guan)(guan)（即主(zhu)(zhu)開(kai)關(guan)(guan)）使(shi)用(yong)兩(liang)極(ji)(ji)。該(gai)開(kai)關(guan)(guan)可同(tong)時(shi)控制火線(xian)和(he)零(ling)線(xian)。其余饋線(xian)斷路器始終(zhong)使(shi)用(yong)單極(ji)(ji)。交(jiao)換機(ji)必須連接到(dao)帶電(dian)(dian)(dian)電(dian)(dian)(dian)纜。開(kai)關(guan)(guan)的(de)兩(liang)極(ji)(ji)均(jun)為火線(xian)，零(ling)線(xian)連接至(zhi)端(duan)子。劃(hua)船，不(bu)要敞開(kai)。常(chang)熟交(jiao)換機(ji)維(wei)(wei)修(xiu)仔(zi)細(xi)檢(jian)查交(jiao)換機(ji)和(he)電(dian)(dian)(dian)源(yuan)(yuan)后，打開(kai)電(dian)(dian)(dian)源(yuan)(yuan)進行(xing)維(wei)(wei)修(xiu)。由于此時(shi)處于緊張狀態，因此必須確保安(an)全。檢(jian)查時(shi)，請仔(zi)細(xi)測量開(kai)關(guan)(guan)的(de)特(te)定模(mo)(mo)塊功率，記錄并調試開(kai)關(guan)(guan)的(de)脈沖(chong)寬度，并嘗試使(shi)復(fu)雜開(kai)關(guan)(guan)的(de)每個(ge)模(mo)(mo)塊的(de)功能(neng)正常(chang)運行(xing)。如果(guo)在(zai)現場檢(jian)查和(he)維(wei)(wei)護(hu)過程(cheng)中(zhong)發(fa)現異(yi)常(chang)，應(ying)關(guan)(guan)閉電(dian)(dian)(dian)源(yuan)(yuan)，并更換異(yi)常(chang)模(mo)(mo)塊。