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Product structure of fiber optic cable

source:未知 author:admin Release time:2021-01-13 10:50:30 Views

The common leather fiber optic cable is a standard 8-shaped structure; there are two parallel reinforced cores with optical fiber in the middle; the self-supporting leather fiber optic cable adds a thick steel wire hanging wire on the structure of the

   The common leather fiber optic cable is a standard 8-shaped structure; there are two parallel reinforced cores with optical fiber in the middle; the self-supporting leather fiber optic cable adds a thick steel wire hanging wire on the structure of the common leather fiber optic cable; generally speaking, the self-supporting leather fiber optic cable is just one more steel wire, and the others are unchanged;

  The structure of this kind of optical cable is different from each manufacturer. But they are not metal reinforced cores in general. Take butterfly cable as an example. The shape of the cross section is like a butterfly, so it is called. The two sides are leather wires, the inner part is reinforcement, and the middle part is optical fiber.

  1. Butterfly optical cable is divided into indoor and indoor (indoor) and outdoor. The price difference between them is large. The price of outdoor type is about twice that of indoor type. The price factor should be considered when making specific design scheme. In general, ordinary optical cable (gyta-g652d) is still used outdoors, while indoor Butterfly optical cable is used indoors. They are transited through fiber distribution box or junction box.

  2. Butterfly optical cable has the advantages of small curvature radius, light weight, relatively good bending resistance, easy fixation and termination in 86 terminal box.

  3. There are two types of butterfly optical cable: non-metal reinforced component and metal reinforced component. Considering the factors of lightning protection and strong current interference, butterfly optical cable with non-metal reinforced component should be used indoors.

  4. Indoor butterfly optical cable has 1-core, 2-core, 3-core and 4-core specifications. Single core cable is suitable for residential users to access butterfly optical cable; 2-4-core cable is suitable for commercial users to access butterfly optical cable.

  There are cold connection and fusion connection.

  Cold connection is to install the connector by preparing the end face of optical fiber and connect it with flange.

  Product application

  It is used for indoor wiring, and the end user uses cable directly;

  It is used to introduce optical cable into buildings;

  FTTH is used for indoor wiring.

  Executive standard

  YD / t1997-2009 optical cable for access network.


 普通皮线光缆为标准8字型结构;两个平行加强芯,中间为光纤;自承式皮线光缆在普通皮线光缆的结构上增加了一根粗钢丝吊线;总体来说自承式皮线光缆就是多了一根钢丝而已,其他均未改变;

  此种光缆每个厂家的结构都不同。但大体都不是金属加强芯,以蝶形皮线光缆为例。截面外形像蝴蝶,故称。两侧为皮线内为加强件,中间处为光纤。

  1、蝶形光缆分室内、室(内)外两种,两者价格差异较大,室外型价格约为室内型价格的2倍,在做具体设计方案时应考虑价格因素,一般情况下,室外仍采用普通光缆(GYTA-G 652D),室内用室内型蝶形光缆,两者通过分纤箱或接头盒过渡。

  2、蝶形光缆有较小的曲率半径,重量轻、相对抗折弯性能较好且易固定、在86终端盒内易端接等特点。

  3、蝶形入户光缆有非金属加强构件、金属加强构件两种形式,考虑到防雷、防强电干扰因素,室内应采用非金属加强构件蝶形光缆。

  4、室内型蝶形光缆有1芯、2芯、3芯、4芯等规格,住宅用户接入蝶形入户光缆宜选用单芯缆;商务用户接入蝶形光缆可按2--4芯缆设计。

  接法有冷接续和熔接。

  冷接续就是通过制备光纤端面将接线子安装好并以法兰头相连接。

  产品应用

  用于室内布线,终端用户直接用缆;

  用于建筑物引入光缆;

  FTTH中用户室内布线用。

  执行标准

  YD/T1997-2009 接入网用碟形引入光缆。

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