
電力講解:電力安裝中電纜施工的注意事項
電力講解:電力安裝(zhuang)中(zhong)電纜(lan)施工(gong)(gong)的注意事項電力安裝(zhuang)是民生工(gong)(gong)程之(zhi)一(yi),也是每個鄉(xiang)村(cun)社區都不可少(shao)的施工(gong)(gong)項目,然而,無論大型或小型工(gong)(gong)程施工(gong)(gong),其中(zhong)電纜(lan)問題(ti)都是施工(gong)(gong)中(zhong)核心的問題(ti),而且(qie)電纜(lan)工(gong)(gong)程直接(jie)涉及到(dao)人身(shen)安全(quan)問題(ti),必須(xu)引(yin)起高度重視。
那么,電纜施(shi)工中(zhong)有哪些注(zhu)意事(shi)項呢?
1、電(dian)力電(dian)纜的(de)轉彎引起的(de)機(ji)械性(xing)損傷:
由于電(dian)力電(dian)纜(lan)(lan)(lan)外徑(jing)較(jiao)大,運(yun)輸(shu)、敷設比較(jiao)困難,電(dian)力電(dian)纜(lan)(lan)(lan)對(dui)轉彎半徑(jing)的要求(qiu)也比較(jiao)嚴格,電(dian)纜(lan)(lan)(lan)施工過程中,要盡可能減少電(dian)纜(lan)(lan)(lan)受到的扭力,在(zai)電(dian)纜(lan)(lan)(lan)轉彎和裕留電(dian)纜(lan)(lan)(lan)時,讓電(dian)纜(lan)(lan)(lan)處于自然彎曲,杜絕內部機械損傷現象。
2、大電(dian)流電(dian)力電(dian)纜(lan)引(yin)發的渦流
電(dian)(dian)力(li)(li)電(dian)(dian)纜(lan)在(zai)(zai)施工中,有采(cai)(cai)用(yong)鋼(gang)支架的,有采(cai)(cai)用(yong)鋼(gang)質保護管的,有采(cai)(cai)用(yong)電(dian)(dian)纜(lan)卡與架空敷設的,凡是(shi)在(zai)(zai)電(dian)(dian)力(li)(li)電(dian)(dian)纜(lan)周Χ形成(cheng)鋼(gang)(鐵(tie))性(xing)閉合回(hui)路,均有可能形成(cheng)渦(wo)流,特(te)別是(shi)在(zai)(zai)大電(dian)(dian)流電(dian)(dian)力(li)(li)電(dian)(dian)纜(lan)系統(tong)中,渦(wo)流更大,所以(yi)電(dian)(dian)力(li)(li)工程公司提醒,在(zai)(zai)電(dian)(dian)力(li)(li)電(dian)(dian)纜(lan)施工時必(bi)須采(cai)(cai)取措施,使電(dian)(dian)纜(lan)周Χ不能形成(cheng)鋼(gang)(鐵(tie))性(xing)閉合回(hui)路,防止電(dian)(dian)纜(lan)引起渦(wo)流現象發生(sheng)。
3、注意電力纜防潮問題
據了解(jie),中、低(di)壓(ya)電(dian)力(li)電(dian)纜(lan)故障(zhang)大部分是電(dian)纜(lan)中間接頭(tou)和終(zhong)端(duan)頭(tou)故障(zhang),而中間接頭(tou)和終(zhong)端(duan)頭(tou)故障(zhang)則大部分是因密封不良,潮氣侵入而造成(cheng)絕緣強度下降。而中、低(di)壓(ya)電(dian)力(li)電(dian)纜(lan)網多采用樹枝狀供電(dian)方式,電(dian)纜(lan)終(zhong)端(duan)頭(tou)數(shu)量較多,因此把好電(dian)纜(lan)終(zhong)端(duan)頭(tou)和中間接頭(tou)堵(du)?密封關(guan)是保證電(dian)纜(lan)安全可靠運行的重要措施之一。
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