
電力講解:電力安裝中電纜施工的注意事項
電力講(jiang)解:電力安裝(zhuang)中電纜施(shi)工(gong)的注意事(shi)項電力安裝(zhuang)是(shi)民(min)生工(gong)程(cheng)之一,也是(shi)每個鄉村社區都(dou)不(bu)可少的施(shi)工(gong)項目(mu),然(ran)而(er),無(wu)論大型或小型工(gong)程(cheng)施(shi)工(gong),其中電纜問題(ti)(ti)都(dou)是(shi)施(shi)工(gong)中核心(xin)的問題(ti)(ti),而(er)且電纜工(gong)程(cheng)直接涉(she)及到(dao)人(ren)身安全問題(ti)(ti),必須引起高度(du)重視。
那么,電(dian)纜施工中有哪些注意事項呢?
1、電(dian)力電(dian)纜的(de)轉(zhuan)彎引起的(de)機械性(xing)損傷:
由于電(dian)(dian)力(li)(li)電(dian)(dian)纜(lan)外徑(jing)較(jiao)大(da),運輸、敷(fu)設比(bi)較(jiao)困難,電(dian)(dian)力(li)(li)電(dian)(dian)纜(lan)對(dui)轉彎(wan)半徑(jing)的(de)要(yao)求也比(bi)較(jiao)嚴格,電(dian)(dian)纜(lan)施工過程中,要(yao)盡可能減少電(dian)(dian)纜(lan)受到的(de)扭(niu)力(li)(li),在電(dian)(dian)纜(lan)轉彎(wan)和裕(yu)留電(dian)(dian)纜(lan)時,讓電(dian)(dian)纜(lan)處于自然(ran)彎(wan)曲,杜絕(jue)內部機械(xie)損傷現象。
2、大電流(liu)電力電纜引發的渦流(liu)
電力(li)電纜在(zai)(zai)施(shi)工中(zhong),有采用鋼(gang)支(zhi)架的,有采用鋼(gang)質保護管的,有采用電纜卡與架空敷(fu)設的,凡是(shi)在(zai)(zai)電力(li)電纜周Χ形成鋼(gang)(鐵(tie)(tie))性閉合回路,均(jun)有可能(neng)形成渦(wo)流(liu),特別是(shi)在(zai)(zai)大(da)電流(liu)電力(li)電纜系統中(zhong),渦(wo)流(liu)更大(da),所以電力(li)工程公司提醒,在(zai)(zai)電力(li)電纜施(shi)工時(shi)必須采取(qu)措施(shi),使電纜周Χ不能(neng)形成鋼(gang)(鐵(tie)(tie))性閉合回路,防止電纜引起(qi)渦(wo)流(liu)現象發(fa)生。
3、注意電力纜防潮問題
據了解,中(zhong)(zhong)、低壓電(dian)(dian)(dian)力電(dian)(dian)(dian)纜故(gu)障大部分是(shi)電(dian)(dian)(dian)纜中(zhong)(zhong)間(jian)接頭和(he)終端(duan)(duan)頭故(gu)障,而中(zhong)(zhong)間(jian)接頭和(he)終端(duan)(duan)頭故(gu)障則大部分是(shi)因密封不良,潮(chao)氣(qi)侵入而造(zao)成絕緣強度(du)下降。而中(zhong)(zhong)、低壓電(dian)(dian)(dian)力電(dian)(dian)(dian)纜網多采用樹(shu)枝狀供電(dian)(dian)(dian)方式,電(dian)(dian)(dian)纜終端(duan)(duan)頭數(shu)量較多,因此把好電(dian)(dian)(dian)纜終端(duan)(duan)頭和(he)中(zhong)(zhong)間(jian)接頭堵?密封關是(shi)保證電(dian)(dian)(dian)纜安全可靠運(yun)行(xing)的(de)重要措施之一。
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