一旦防火電纜被水淹沒，電纜頭往往首先出現擊穿現象。因此，如果制作好導線頭，可以延長電纜的整體壽命。例如，當電纜剝離半導體層時，我們在半導體層上畫幾條垂直線，然后像剝甘蔗一樣剝下半導體。

防火電(dian)(dian)纜(lan)(lan)如果刀切(qie)得太深，會(hui)(hui)破壞保溫層，為水(shui)樹的(de)產生帶來機會(hui)(hui)。另外(wai)，焊(han)錫時，由(you)于(yu)找(zhao)不到(dao)電(dian)(dian)源，焊(han)槍會(hui)(hui)直(zhi)接熔(rong)化焊(han)料。此(ci)時，火焰會(hui)(hui)損壞銅屏蔽層和絕緣(yuan)層。因此(ci)，要消(xiao)除這種現象(xiang)，正確的(de)方法可(ke)以(yi)配(pei)置UPS，冷縮硅橡(xiang)(xiang)膠電(dian)(dian)纜(lan)(lan)配(pei)件(jian)，制(zhi)作簡單方便(bian)，無噴燈(deng)，無焊(han)料。此(ci)外(wai)，硅橡(xiang)(xiang)膠電(dian)(dian)纜(lan)(lan)附件(jian)具有彈(dan)性(xing)，與電(dian)(dian)纜(lan)(lan)的(de)連接緊密，克服了熱縮材料的(de)缺點，新(xin)購重(zhong)慶(qing)電(dian)(dian)纜(lan)(lan)兩(liang)端用(yong)(yong)塑料密封(feng)套密封(feng)，但使用(yong)(yong)一段后(hou)，其(qi)余部分用(yong)(yong)塑料紙包裹，外(wai)面用(yong)(yong)繩子捆扎(zha)。密封(feng)不好。

防火電(dian)(dian)(dian)(dian)纜(lan)(lan)隨著時(shi)(shi)(shi)間的推移(yi)，，用(yong)塑料(liao)紙包裹的電(dian)(dian)(dian)(dian)纜(lan)(lan)頭(tou)(tou)有(you)(you)時(shi)(shi)(shi)會(hui)被水(shui)(shui)(shui)(shui)浸沒(mei)，使水(shui)(shui)(shui)(shui)進(jin)入電(dian)(dian)(dian)(dian)纜(lan)(lan)；在(zai)穿線(xian)、穿線(xian)時(shi)(shi)(shi)，外護套(tao)有(you)(you)時(shi)(shi)(shi)會(hui)斷裂(lie)。電(dian)(dian)(dian)(dian)纜(lan)(lan)敷設后未及(ji)時(shi)(shi)(shi)制作電(dian)(dian)(dian)(dian)纜(lan)(lan)頭(tou)(tou)，使未經密封(feng)處理的電(dian)(dian)(dian)(dian)纜(lan)(lan)端(duan)口長期暴露在(zai)空氣中(zhong)，甚至浸入水(shui)(shui)(shui)(shui)中(zhong)，使大量水(shui)(shui)(shui)(shui)蒸氣進(jin)入電(dian)(dian)(dian)(dian)纜(lan)(lan)，在(zai)電(dian)(dian)(dian)(dian)纜(lan)(lan)頭(tou)(tou)（包括終端(duan)頭(tou)(tou)和中(zhong)間接頭(tou)(tou)）的生產過程中(zhong)，由于(yu)廠家的意圖，電(dian)(dian)(dian)(dian)纜(lan)(lan)頭(tou)(tou)有(you)(you)時(shi)(shi)(shi)會(hui)滑入電(dian)(dian)(dian)(dian)纜(lan)(lan)井(jing)(jing)內，并(bing)有(you)(you)積(ji)水(shui)(shui)(shui)(shui)，在(zai)電(dian)(dian)(dian)(dian)纜(lan)(lan)運行(xing)過程中(zhong)，當中(zhong)間接頭(tou)(tou)斷裂(lie)時(shi)(shi)(shi)，電(dian)(dian)(dian)(dian)纜(lan)(lan)井(jing)(jing)內的水(shui)(shui)(shui)(shui)會(hui)沿(yan)著縫(feng)隙進(jin)入電(dian)(dian)(dian)(dian)纜(lan)(lan)。

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