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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)(jian)查(cha),然后必須制定配電柜的(de)(de)改(gai)造計劃。首先,人員應(ying)關(guan)(guan)閉電源以采取保護措施,對配電柜設(she)施進行(xing)徹底(di)檢(jian)(jian)查(cha),并(bing)更換老化的(de)(de)電線,開關(guan)(guan)和燈。有(you)問題的(de)(de)設(she)備應(ying)及(ji)時維修,并(bing)記錄(lu)檢(jian)(jian)查(cha)條件。檢(jian)(jian)查(cha)后,人員應(ying)組織檢(jian)(jian)查(cha)工(gong)具,以免因配電柜遺失工(gong)具而(er)造成事故(gu)。
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)纜及其母(mu)線(xian)之間(jian)裝(zhuang)有保(bao)險絲(si)(si)和其他(ta)設備。如果輸(shu)出電(dian)(dian)纜被(bei)(bei)雷(lei)擊,并且輸(shu)入(ru)電(dian)(dian)纜保(bao)險絲(si)(si)先被(bei)(bei)燒斷,則(ze)整(zheng)個配電(dian)(dian)箱(xiang)將失去防雷(lei)保(bao)護。配電(dian)(dian)箱(xiang)被(bei)(bei)雷(lei)擊損壞。建議在(zai)配電(dian)(dian)箱(xiang)的入(ru)口和出口側安裝(zhuang)氧化鋅避雷(lei)針。
家用(yong)(yong)空氣開(kai)(kai)關(guan)(guan)分為(wei)單(dan)極(ji)(ji)(ji)和(he)兩極(ji)(ji)(ji)(單(dan)開(kai)(kai),雙開(kai)(kai)),單(dan)極(ji)(ji)(ji)在(zai)配電(dian)(dian)(dian)箱中占一個(ge)回(hui)路(lu),雙極(ji)(ji)(ji)在(zai)配電(dian)(dian)(dian)箱中占兩個(ge)回(hui)路(lu)。通常,主開(kai)(kai)關(guan)(guan)(即主開(kai)(kai)關(guan)(guan))使用(yong)(yong)兩極(ji)(ji)(ji)。該開(kai)(kai)關(guan)(guan)可同(tong)時控制火線(xian)(xian)和(he)零線(xian)(xian)。其余饋線(xian)(xian)斷(duan)路(lu)器始終使用(yong)(yong)單(dan)極(ji)(ji)(ji)。交(jiao)換(huan)機必(bi)須連接(jie)到帶電(dian)(dian)(dian)電(dian)(dian)(dian)纜。開(kai)(kai)關(guan)(guan)的兩極(ji)(ji)(ji)均為(wei)火線(xian)(xian),零線(xian)(xian)連接(jie)至端子。劃(hua)船(chuan),不(bu)要敞(chang)開(kai)(kai)。常熟交(jiao)換(huan)機維(wei)修仔細(xi)檢(jian)查(cha)交(jiao)換(huan)機和(he)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)后,打開(kai)(kai)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)進行維(wei)修。由于此時處于緊張狀態,因此必(bi)須確保安全(quan)。檢(jian)查(cha)時,請仔細(xi)測量開(kai)(kai)關(guan)(guan)的特定模(mo)塊(kuai)功率,記(ji)錄并(bing)調試開(kai)(kai)關(guan)(guan)的脈沖(chong)寬度,并(bing)嘗(chang)試使復雜開(kai)(kai)關(guan)(guan)的每個(ge)模(mo)塊(kuai)的功能正常運行。如果在(zai)現(xian)場檢(jian)查(cha)和(he)維(wei)護過程中發現(xian)異(yi)常,應關(guan)(guan)閉電(dian)(dian)(dian)源(yuan)(yuan)(yuan),并(bing)更換(huan)異(yi)常模(mo)塊(kuai)。