Fire -retardant direct burial fiber cable of nonmetal strenghthened type

• Main Authors: CHEN LONG, SHEN HONGFEN, WU FENGQI, WANG YEHUA, WU SHUIRONG, QIAN JIANRONG, QIAN ZHENGUO, JIANG YING, WU HUALIANG, ZHUANG YUEMING, YUE ZHIHONG, WU JINHUA, YAN HUILIANG, SONG SHIYUAN, CHEN WENBIN, SUN GUOFANG, XU YINGMIN, ZHU RONGQUAN, WU JUNXIONG, SHI HUIPING, HE KANYUN, SUN YIXING
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2017
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The utility model discloses a fire -retardant direct burial fiber cable of nonmetal strenghthened type, including glass fiber rod (1), glass fiber rod (1) outer transposition has optical fiber unit (2), optical fiber unit (2) outer be equipped with bonding inner sheath (3) and fire -retardant oversheath (4), optical fiber unit (2) and bonding inner sheath (3) between be equipped with composite aluminium -plastic tape (5), be equipped with between bonding inner sheath (3) and fire -retardant oversheath (4) steel -plastic composites pipe (6), fire -retardant oversheath (4) are equipped with between first fire -retardant restrictive coating (41) and the fire -retardant restrictive coating of second (42) adhesion layer (43) including first fire -retardant restrictive coating (41) and the fire -retardant restrictive coating of second (42), and adhesion layer (43) inboard is equipped with strengthening layer (44), and adhesion layer (43) outside is equipped with toper arch (45), is equipped with tapered groove (46)