GYXTW53 光(guang)纜的結構是(shi)將250μm光(guang)纖套(tao)入高模量材料制(zhi)(zhi)成的松(song)(song)(song)套(tao)管(guan)中(zhong)，松(song)(song)(song)套(tao)管(guan)內(nei)填充(chong)防水化合物。松(song)(song)(song)套(tao)管(guan)外(wai)用(yong)一層雙面涂塑鋼帶(dai)(dai)（PSP）縱(zong)包，鋼帶(dai)(dai)和松(song)(song)(song)套(tao)管(guan)之(zhi)間加阻水材料以保(bao)證光(guang)纜的緊湊和縱(zong)向阻水，兩側放置兩根平行鋼絲后擠制(zhi)(zhi)聚(ju)乙(yi)(yi)烯(xi)（PE）內(nei)護套(tao)，在(zai)聚(ju)乙(yi)(yi)烯(xi)內(nei)護層外(wai)雙面鍍鉻涂塑鋼帶(dai)(dai)（PSP）縱(zong)包，再在(zai)外(wai)擠制(zhi)(zhi)聚(ju)乙(yi)(yi)烯(xi)護套(tao)成纜。
