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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徹底(di)檢(jian)查,然后必須制定配電(dian)柜的改造計(ji)劃。首先,人(ren)員應(ying)關(guan)閉電(dian)源(yuan)以采取保護(hu)措施(shi),對配電(dian)柜設施(shi)進行徹底(di)檢(jian)查,并更換老(lao)化的電(dian)線,開關(guan)和燈(deng)。有問題的設備應(ying)及時維修,并記(ji)錄檢(jian)查條件。檢(jian)查后,人(ren)員應(ying)組織檢(jian)查工具(ju),以免因配電(dian)柜遺失工具(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。普通照明在進(jin)出電(dian)(dian)(dian)纜及(ji)其母線之間裝有保險(xian)絲和其他設備。如果輸(shu)(shu)出電(dian)(dian)(dian)纜被雷(lei)擊(ji),并且輸(shu)(shu)入電(dian)(dian)(dian)纜保險(xian)絲先被燒斷(duan),則整(zheng)個配(pei)電(dian)(dian)(dian)箱(xiang)將失去防雷(lei)保護。配(pei)電(dian)(dian)(dian)箱(xiang)被雷(lei)擊(ji)損壞。建議在配(pei)電(dian)(dian)(dian)箱(xiang)的入口和出口側安裝氧化鋅(xin)避雷(lei)針。
家用(yong)空氣開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)分為單(dan)極(ji)和(he)兩(liang)(liang)極(ji)(單(dan)開(kai)(kai),雙(shuang)開(kai)(kai)),單(dan)極(ji)在配電箱中占一個(ge)回路,雙(shuang)極(ji)在配電箱中占兩(liang)(liang)個(ge)回路。通常,主開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)(即主開(kai)(kai)關(guan)(guan)(guan)(guan)(guan))使(shi)(shi)用(yong)兩(liang)(liang)極(ji)。該開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)可同時(shi)控制火線(xian)(xian)和(he)零線(xian)(xian)。其余饋線(xian)(xian)斷路器始終使(shi)(shi)用(yong)單(dan)極(ji)。交(jiao)換(huan)(huan)(huan)(huan)機(ji)必須連接到帶電電纜。開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)的(de)兩(liang)(liang)極(ji)均為火線(xian)(xian),零線(xian)(xian)連接至端子。劃船,不要(yao)敞開(kai)(kai)。常熟交(jiao)換(huan)(huan)(huan)(huan)機(ji)維修(xiu)仔細(xi)檢查(cha)交(jiao)換(huan)(huan)(huan)(huan)機(ji)和(he)電源后,打開(kai)(kai)電源進行維修(xiu)。由于(yu)此時(shi)處于(yu)緊(jin)張狀態,因此必須確保安全。檢查(cha)時(shi),請(qing)仔細(xi)測量(liang)開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)的(de)特定模(mo)塊功率,記錄并(bing)調試(shi)開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)的(de)脈沖寬度,并(bing)嘗試(shi)使(shi)(shi)復雜(za)開(kai)(kai)關(guan)(guan)(guan)(guan)(guan)的(de)每個(ge)模(mo)塊的(de)功能正常運行。如果(guo)在現場(chang)檢查(cha)和(he)維護(hu)過程中發現異(yi)常,應(ying)關(guan)(guan)(guan)(guan)(guan)閉(bi)電源,并(bing)更換(huan)(huan)(huan)(huan)異(yi)常模(mo)塊。