什么是電線過載?電線的保養需要注意些什么?
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來源:金環宇電線電纜發(fa)布日(ri)期:2020-04-10 09:23
超負荷也叫(jiao)“過載(zai)”。電(dian)(dian)線(xian)(xian)(xian)(xian)也有它的(de)(de)載(zai)電(dian)(dian)規定。如果超負荷使用(yong),細電(dian)(dian)線(xian)(xian)(xian)(xian)通過大電(dian)(dian)流(liu),就容易引起火災(zai)。室內(nei)安裝明線(xian)(xian)(xian)(xian),環境溫度不應高于35℃。在(zai)電(dian)(dian)線(xian)(xian)(xian)(xian)安全載(zai)流(liu)內(nei)選用(yong)電(dian)(dian)線(xian)(xian)(xian)(xian),電(dian)(dian)線(xian)(xian)(xian)(xian)不會發(fa)生過熱(re)(re)。但用(yong)電(dian)(dian)量超過電(dian)(dian)線(xian)(xian)(xian)(xian)的(de)(de)安全載(zai)流(liu)時,電(dian)(dian)線(xian)(xian)(xian)(xian)會發(fa)熱(re)(re),電(dian)(dian)線(xian)(xian)(xian)(xian)的(de)(de)發(fa)熱(re)(re)量和(he)電(dian)(dian)流(liu)強度的(de)(de)平(ping)方成正(zheng)比,如果電(dian)(dian)流(liu)強度增加(jia)(jia)2倍(bei),發(fa)熱(re)(re)量就比原來(lai)增加(jia)(jia)4倍(bei),會造成電(dian)(dian)線(xian)(xian)(xian)(xian)過熱(re)(re),容易引起火災(zai)。
電線超(chao)負荷的(de)原(yuan)因主要是:
1、新線(xian)選線(xian)太細,截(jie)面小;
2、在舊線上任意增加負荷(he);
3、保(bao)(bao)(bao)險絲(si)選用(yong)不當。保(bao)(bao)(bao)險絲(si)選細了,經常斷電(dian),不利于供電(dian);保(bao)(bao)(bao)險絲(si)選粗了,超負荷時(shi)保(bao)(bao)(bao)險絲(si)不斷,造成過熱燒壞電(dian)線絕緣層(ceng),也(ye)容易(yi)引起火災。
電(dian)線要懂得保(bao)養(yang):保(bao)養(yang)電(dian)線要注意一下幾(ji)點;
1、電線不要受潮,受熱,受腐蝕或碰傷。
2、電線用到(dao)一定(ding)年限要注意檢(jian)查,發(fa)現(xian)毛(mao)病,應(ying)及時更換。
3、電線不要超負荷使(shi)用。
4、經常(chang)檢查家(jia)中電氣和線路的使用(yong)情況,及(ji)時進(jin)行維護和檢修。
5、對于老(lao)式建筑(zhu)的線路、發(fa)現(xian)被水淹沒或(huo)淋濕,特別是線路年久失修發(fa)生老(lao)化的應(ying)立(li)即請(qing)電工(gong)予以搶修。
6、對于容易(yi)被洪水浸泡的線路,應(ying)請電工遷移線路,采取高架、防潮(chao)措施(shi)。
7、雨天如停電(dian)(dian)應立(li)即切斷(duan)電(dian)(dian)源,請電(dian)(dian)工檢查原因,并派專人加以看護。
家裝離不(bu)開電線(xian)(xian),尤(you)其是(shi)(shi)舊房,電線(xian)(xian)雖小(xiao)“責任(ren)”重大(da)。好多火災是(shi)(shi)由于(yu)電線(xian)(xian)線(xian)(xian)路老化,配置(zhi)不(bu)合理(li),或者使用電線(xian)(xian)質量低劣造(zao)成(cheng)的。因(yin)此不(bu)論是(shi)(shi)挑(tiao)選電線(xian)(xian)還是(shi)(shi)電線(xian)(xian)安裝都(dou)要謹慎!
以上就是金環宇電纜小編分(fen)享的電線電纜(lan)改(gai)如何保養的一些小訣竅,希望對(dui)大(da)家有(you)所幫助(zhu)。