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徹底檢(jian)查，然后(hou)必(bi)須制定(ding)配電(dian)(dian)柜的改造計劃。首先，人(ren)員應(ying)關(guan)閉(bi)電(dian)(dian)源以采取保護(hu)措施，對(dui)配電(dian)(dian)柜設(she)(she)施進行徹底檢(jian)查，并(bing)更換(huan)老化(hua)的電(dian)(dian)線(xian)，開關(guan)和燈。有問題的設(she)(she)備應(ying)及時維修，并(bing)記(ji)錄(lu)檢(jian)查條件。檢(jian)查后(hou)，人(ren)員應(ying)組織檢(jian)查工(gong)具(ju)，以免因配電(dian)(dian)柜遺失工(gong)具(ju)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(zai)進出電(dian)纜及(ji)其母線(xian)之間(jian)裝(zhuang)(zhuang)有保險絲和其他設(she)備。如果輸出電(dian)纜被雷(lei)擊，并且輸入電(dian)纜保險絲先被燒斷，則整個配電(dian)箱(xiang)將失去防雷(lei)保護。配電(dian)箱(xiang)被雷(lei)擊損壞。建(jian)議在(zai)配電(dian)箱(xiang)的入口和出口側(ce)安裝(zhuang)(zhuang)氧化鋅避雷(lei)針。

家用(yong)空氣開(kai)關(guan)(guan)(guan)(guan)分(fen)為單(dan)(dan)極(ji)和(he)兩(liang)極(ji)（單(dan)(dan)開(kai)，雙(shuang)開(kai)），單(dan)(dan)極(ji)在配電(dian)(dian)(dian)箱中占(zhan)一(yi)個(ge)回(hui)路，雙(shuang)極(ji)在配電(dian)(dian)(dian)箱中占(zhan)兩(liang)個(ge)回(hui)路。通常(chang)，主開(kai)關(guan)(guan)(guan)(guan)（即主開(kai)關(guan)(guan)(guan)(guan)）使(shi)用(yong)兩(liang)極(ji)。該開(kai)關(guan)(guan)(guan)(guan)可同時(shi)(shi)控制(zhi)火線和(he)零線。其(qi)余饋(kui)線斷路器始終使(shi)用(yong)單(dan)(dan)極(ji)。交(jiao)換(huan)機(ji)必須連接(jie)到帶電(dian)(dian)(dian)電(dian)(dian)(dian)纜(lan)。開(kai)關(guan)(guan)(guan)(guan)的兩(liang)極(ji)均為火線，零線連接(jie)至(zhi)端子。劃船，不要敞開(kai)。常(chang)熟交(jiao)換(huan)機(ji)維修仔(zi)細(xi)(xi)檢查交(jiao)換(huan)機(ji)和(he)電(dian)(dian)(dian)源(yuan)(yuan)后，打開(kai)電(dian)(dian)(dian)源(yuan)(yuan)進(jin)行(xing)維修。由于此時(shi)(shi)處于緊張狀態，因此必須確(que)保(bao)安全。檢查時(shi)(shi)，請仔(zi)細(xi)(xi)測(ce)量(liang)開(kai)關(guan)(guan)(guan)(guan)的特定模塊功率，記(ji)錄并調試開(kai)關(guan)(guan)(guan)(guan)的脈(mo)沖寬度，并嘗試使(shi)復雜開(kai)關(guan)(guan)(guan)(guan)的每個(ge)模塊的功能正常(chang)運行(xing)。如果在現場檢查和(he)維護過程中發現異常(chang)，應(ying)關(guan)(guan)(guan)(guan)閉電(dian)(dian)(dian)源(yuan)(yuan)，并更換(huan)異常(chang)模塊。