假如終(zhong)端設備是(shi)(shi)(shi)黑色(se)(se)的(de)，在其中一(yi)種(zhong)概率不一(yi)定是(shi)(shi)(shi)變黑，空氣(qi)(qi)氧(yang)化也可(ke)能是(shi)(shi)(shi)黑色(se)(se)的(de)。那麼怎樣(yang)認證它是(shi)(shi)(shi)不是(shi)(shi)(shi)燒黑了呢？大家選用手指頭(tou)磨擦的(de)方式，假如能像香灰一(yi)樣(yang)被擦下去(qu)，那便是(shi)(shi)(shi)空氣(qi)(qi)氧(yang)化產生的(de)黑色(se)(se)化學物質，只有用打磨砂(sha)紙或挫刀擦下去(qu)。

    提示大(da)伙(huo)兒(er)，這兒(er)要留意的一(yi)點是：接(jie)電源時不必用(yong)手指擦洗！另一(yi)種可(ke)能是變黑(hei)。除(chu)開(kai)火和(he)氣功大(da)師的工(gong)作中，僅(jin)有一(yi)種很有可(ke)能，那便是終端(duan)設(she)備過熱(re)和(he)發燙。

    有二種很有可能(neng)造成(cheng) 高溫(wen)難題

    有二種很有可能：接線端子松(song)脫造成(cheng) 回路(lu)(lu)電(dian)(dian)(dian)(dian)(dian)(dian)阻過大，進而過熱(re)；接(jie)(jie)線(xian)(xian)端子沒有松(song)脫，但電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)因一些不明緣(yuan)故(gu)(gu)過熱(re)緣(yuan)故(gu)(gu)，如(ru)開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)過電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)或負荷短(duan)路(lu)(lu)故(gu)(gu)障。一英鎊。電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)太高。從開關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)上(shang)(shang)看，變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)二(er)次電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)—配電(dian)(dian)(dian)(dian)(dian)(dian)柜中的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)—各(ge)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)設(she)備(bei)的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)。2歐元。接(jie)(jie)地(di)故(gu)(gu)障。還可以從變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)上(shang)(shang)查驗，并在配電(dian)(dian)(dian)(dian)(dian)(dian)柜中接(jie)(jie)地(di)。接(jie)(jie)地(di)應(ying)接(jie)(jie)地(di)，一切正常相(xiang)線(xian)(xian)應(ying)清除接(jie)(jie)地(di)故(gu)(gu)障。斷電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)，能用(yong)絕(jue)緣(yuan)層表或搖(yao)表精準測量(liang)。當電(dian)(dian)(dian)(dian)(dian)(dian)纜線(xian)(xian)、電(dian)(dian)(dian)(dian)(dian)(dian)纜線(xian)(xian)、隔離(li)開關(guan)、電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)開關(guan)等供配電(dian)(dian)(dian)(dian)(dian)(dian)系統路(lu)(lu)線(xian)(xian)按段精準測量(liang)艱難時(shi)，將抽出來弱電(dian)(dian)(dian)(dian)(dian)(dian)安裝機器(qi)(qi)設(she)備(bei)和感應(ying)器(qi)(qi)機器(qi)(qi)設(she)備(bei)的保險管(guan)。

    柵欄式接線端子接(jie)(jie)(jie)地的(de)(de)關鍵(jian)是(shi)接(jie)(jie)(jie)地電阻(zu)器低(di)，觸(chu)碰(peng)總面積大。前(qian)面一種(zhong)能夠 確(que)保(bao)接(jie)(jie)(jie)地點的(de)(de)“零電位差(cha)”盡量(liang)低(di)，貼近(jin)地電位差(cha)。那樣(yang)能夠 防止(zhi)遭雷擊的(de)(de)概率(lv)，從接(jie)(jie)(jie)地線“反串(chuan)表演”返回電路后，你想起遭雷擊。后面一種(zhong)能確(que)保(bao)充足的(de)(de)容積出(chu)示故障(zhang)電流(liu)量(liang)安全通(tong)道(dao)，包含雷擊或短路故障(zhang)故障(zhang)等。因(yin)為伴(ban)隨著(zhu)當代(dai)科技(ji)的(de)(de)發(fa)展，具體的(de)(de)施(shi)工工藝在理論(lun)上早已發(fa)生了轉變，這類(lei)接(jie)(jie)(jie)地方法是(shi)不是(shi)行(xing)得通(tong)，在于新標準的(de)(de)要求。