配電(dian)(dian)(dian)箱是(shi)按電(dian)(dian)(dian)氣接線(xian)要(yao)求(qiu)將(jiang)開關設(she)備(bei)(bei)、測量(liang)儀表(biao)、保(bao)護(hu)電(dian)(dian)(dian)器和(he)輔(fu)助(zhu)設(she)備(bei)(bei)組裝在封閉或(huo)半封閉金屬柜中(zhong)或(huo)屏(ping)幅上(shang)，構成低壓配電(dian)(dian)(dian)箱。正常(chang)運(yun)行時(shi)可借(jie)助(zhu)手動或(huo)自動開關接通或(huo)分斷電(dian)(dian)(dian)路。故(gu)障或(huo)不正常(chang)運(yun)行時(shi)借(jie)助(zhu)保(bao)護(hu)電(dian)(dian)(dian)器切斷電(dian)(dian)(dian)路或(huo)報警。借(jie)測量(liang)儀表(biao)可顯(xian)示運(yun)行中(zhong)的各(ge)種參數(shu)，還可對某(mou)些(xie)電(dian)(dian)(dian)氣參數(shu)進(jin)行調整，對偏(pian)離正常(chang)工作狀態進(jin)行提示或(huo)發(fa)出信(xin)號(hao)。