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電纜橋架的敷設方式有明顯的優點
瀏覽:461 發布日期:2018-10-16 12:56:38

電(dian)(dian)(dian)纜(lan)(lan)橋架(jia)的(de)電(dian)(dian)(dian)纜(lan)(lan)敷設(she)方式具有明顯(xian)的(de)優點,不論廠區主干線路(lu)或某個裝置內的(de)配(pei)線,均可采用電(dian)(dian)(dian)纜(lan)(lan)橋架(jia)敷設(she)方式。電(dian)(dian)(dian)纜(lan)(lan)直(zhi)埋(mai)雖然土建(jian)造(zao)價較低,但(dan)其占地面積(ji)大(da),裝置擴建(jian)時(shi)增(zeng)加電(dian)(dian)(dian)纜(lan)(lan)要重(zhong)新開挖(wa),常因擴建(jian)施工等損壞(huai)電(dian)(dian)(dian)纜(lan)(lan),造(zao)成停電(dian)(dian)(dian)事故,且事故處(chu)理困難(nan),恢復供電(dian)(dian)(dian)所(suo)需(xu)(xu)時(shi)間較長,電(dian)(dian)(dian)纜(lan)(lan)直(zhi)埋(mai)時(shi)需(xu)(xu)選用鎧裝電(dian)(dian)(dian)纜(lan)(lan),其價格比(bi)一般電(dian)(dian)(dian)纜(lan)(lan)貴(gui),彎曲不便(bian)。

  電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)溝方案雖然和(he)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)直埋相(xiang)比,具有(you)一定的(de)靈(ling)活(huo)性,但石化企業大(da)多都是易(yi)燃易(yi)爆場所,電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)溝易(yi)聚集(ji)危險(xian)氣體,造成隱(yin)患,并且化工(gong)地(di)表(biao)水大(da)多含有(you)化工(gong)物料,時(shi)間長了,必然會對電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)溝造成污染。電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)溝一般深(shen)一米左右(you),上(shang)有(you)蓋板(ban),人員巡檢多有(you)不便(bian)。電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)隧道(dao)雖然具有(you)維修,增(zeng)加電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)方便(bian)的(de)特點,但因它處在地(di)下,電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)多散熱條(tiao)件差,一般需(xu)強制通風,時(shi)時(shi)還受到滲(shen)漏的(de)困(kun)擾(rao),需(xu)定期排水,運行(xing)費用高。電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)隧道(dao)只能在電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)集(ji)中地(di)段使用,電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)引出后,仍需(xu)采用直埋或電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)溝方式(shi),不可避免(mian)地(di)又出現了該方式(shi)的(de)缺點。

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