電力講解:電力安裝中電纜施工的注意事項
電(dian)力(li)(li)講解(jie):電(dian)力(li)(li)安裝(zhuang)中(zhong)電(dian)纜施工(gong)的(de)注意事項電(dian)力(li)(li)安裝(zhuang)是民(min)生工(gong)程(cheng)之一(yi),也是每個鄉村社(she)區都(dou)不可少的(de)施工(gong)項目(mu),然而(er),無論大型(xing)(xing)或小型(xing)(xing)工(gong)程(cheng)施工(gong),其中(zhong)電(dian)纜問題都(dou)是施工(gong)中(zhong)核心(xin)的(de)問題,而(er)且電(dian)纜工(gong)程(cheng)直接(jie)涉及(ji)到人身安全問題,必須引起高度重視。
那么(me),電纜施工中有(you)哪些注意事項呢?
1、電力電纜的轉彎(wan)引起的機械性(xing)損傷:
由于電力電纜(lan)外徑較大,運(yun)輸、敷設比(bi)較困難,電力電纜(lan)對(dui)轉彎半徑的要(yao)求也(ye)比(bi)較嚴格,電纜(lan)施工過程中(zhong),要(yao)盡可能減少電纜(lan)受(shou)到的扭力,在電纜(lan)轉彎和裕(yu)留(liu)電纜(lan)時,讓電纜(lan)處于自然(ran)彎曲,杜絕內部機械損傷現象。
2、大電(dian)流電(dian)力電(dian)纜引發的渦流
電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)在(zai)施(shi)(shi)工(gong)(gong)中,有(you)采用鋼(gang)支架的(de),有(you)采用鋼(gang)質保護管的(de),有(you)采用電(dian)(dian)(dian)纜(lan)(lan)卡與架空敷設的(de),凡是在(zai)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)周Χ形成(cheng)鋼(gang)(鐵)性閉合回(hui)路,均有(you)可能(neng)(neng)形成(cheng)渦流(liu),特(te)別是在(zai)大(da)電(dian)(dian)(dian)流(liu)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)系(xi)統中,渦流(liu)更大(da),所以(yi)電(dian)(dian)(dian)力(li)(li)(li)工(gong)(gong)程公司提醒,在(zai)電(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)纜(lan)(lan)施(shi)(shi)工(gong)(gong)時必(bi)須采取措施(shi)(shi),使電(dian)(dian)(dian)纜(lan)(lan)周Χ不(bu)能(neng)(neng)形成(cheng)鋼(gang)(鐵)性閉合回(hui)路,防止電(dian)(dian)(dian)纜(lan)(lan)引(yin)起渦流(liu)現象發生。
3、注意(yi)電力纜防(fang)潮問題
據了解(jie),中(zhong)、低壓電力電纜(lan)故障(zhang)(zhang)大(da)部(bu)分(fen)(fen)是(shi)電纜(lan)中(zhong)間接頭(tou)(tou)(tou)和終端頭(tou)(tou)(tou)故障(zhang)(zhang),而(er)中(zhong)間接頭(tou)(tou)(tou)和終端頭(tou)(tou)(tou)故障(zhang)(zhang)則大(da)部(bu)分(fen)(fen)是(shi)因密封不良(liang),潮氣侵入而(er)造成絕(jue)緣強度下降。而(er)中(zhong)、低壓電力電纜(lan)網多采用(yong)樹枝狀供(gong)電方式,電纜(lan)終端頭(tou)(tou)(tou)數量(liang)較多,因此把好電纜(lan)終端頭(tou)(tou)(tou)和中(zhong)間接頭(tou)(tou)(tou)堵?密封關是(shi)保證電纜(lan)安全(quan)可靠(kao)運行的重要措施之一。
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