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)行徹底檢(jian)查，然后(hou)必須制定配(pei)電(dian)(dian)柜的改造計(ji)劃。首(shou)先，人員應關閉電(dian)(dian)源以采(cai)取(qu)保護措施，對配(pei)電(dian)(dian)柜設施進(jin)行徹底檢(jian)查，并(bing)更換老化的電(dian)(dian)線，開關和燈。有問題的設備應及時維(wei)修，并(bing)記錄檢(jian)查條件。檢(jian)查后(hou)，人員應組(zu)織檢(jian)查工(gong)具(ju)(ju)，以免因配(pei)電(dian)(dian)柜遺失工(gong)具(ju)(ju)而(er)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(zai)進出電(dian)(dian)纜(lan)及其母線之間(jian)裝有保(bao)險絲(si)和(he)其他設備。如果(guo)輸出電(dian)(dian)纜(lan)被雷(lei)擊，并且輸入電(dian)(dian)纜(lan)保(bao)險絲(si)先被燒斷，則整個配電(dian)(dian)箱(xiang)將失(shi)去防雷(lei)保(bao)護(hu)。配電(dian)(dian)箱(xiang)被雷(lei)擊損(sun)壞。建(jian)議在(zai)配電(dian)(dian)箱(xiang)的入口和(he)出口側(ce)安裝氧化(hua)鋅避(bi)雷(lei)針。

家用(yong)(yong)空氣開關(guan)(guan)(guan)(guan)分為(wei)單極(ji)(ji)和(he)兩極(ji)(ji)（單開，雙(shuang)開），單極(ji)(ji)在配(pei)電(dian)(dian)(dian)(dian)(dian)箱中(zhong)占一個(ge)(ge)回路(lu)(lu)，雙(shuang)極(ji)(ji)在配(pei)電(dian)(dian)(dian)(dian)(dian)箱中(zhong)占兩個(ge)(ge)回路(lu)(lu)。通(tong)常(chang)(chang)，主(zhu)開關(guan)(guan)(guan)(guan)（即主(zhu)開關(guan)(guan)(guan)(guan)）使(shi)用(yong)(yong)兩極(ji)(ji)。該開關(guan)(guan)(guan)(guan)可同時(shi)控制(zhi)火(huo)線(xian)和(he)零(ling)線(xian)。其余饋線(xian)斷路(lu)(lu)器(qi)始終使(shi)用(yong)(yong)單極(ji)(ji)。交換機必(bi)須連(lian)接(jie)到(dao)帶電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜。開關(guan)(guan)(guan)(guan)的(de)(de)兩極(ji)(ji)均為(wei)火(huo)線(xian)，零(ling)線(xian)連(lian)接(jie)至端子(zi)。劃船，不要敞開。常(chang)(chang)熟交換機維(wei)(wei)修仔細(xi)檢查(cha)交換機和(he)電(dian)(dian)(dian)(dian)(dian)源(yuan)后(hou)，打開電(dian)(dian)(dian)(dian)(dian)源(yuan)進行(xing)維(wei)(wei)修。由于此時(shi)處于緊張狀態，因(yin)此必(bi)須確保安全(quan)。檢查(cha)時(shi)，請仔細(xi)測量(liang)開關(guan)(guan)(guan)(guan)的(de)(de)特定模(mo)(mo)塊功(gong)率，記錄并調試開關(guan)(guan)(guan)(guan)的(de)(de)脈沖(chong)寬度，并嘗試使(shi)復雜開關(guan)(guan)(guan)(guan)的(de)(de)每個(ge)(ge)模(mo)(mo)塊的(de)(de)功(gong)能正常(chang)(chang)運行(xing)。如果在現場檢查(cha)和(he)維(wei)(wei)護過(guo)程中(zhong)發現異常(chang)(chang)，應關(guan)(guan)(guan)(guan)閉電(dian)(dian)(dian)(dian)(dian)源(yuan)，并更換異常(chang)(chang)模(mo)(mo)塊。