CN201060297Y

CN201060297Y - Self supported optic cable

Info

Publication number: CN201060297Y
Application number: CNU2007201068187U
Authority: CN
Inventors: 蒋宏军
Original assignee: HUADA COMMUNICATION EQUIPMENT GROUP CO Ltd ZHEJIANG
Current assignee: HUADA COMMUNICATION EQUIPMENT GROUP CO Ltd ZHEJIANG
Priority date: 2007-02-16
Filing date: 2007-02-16
Publication date: 2008-05-14
Anticipated expiration: 2017-02-16

Abstract

The utility model discloses a self-supporting optical fiber cable, at least comprising optical fiber, an optical fiber casing and an external sheath, a resistivity water layer and a flake glass fiber layer coating the optical fiber casing. The flake glass fiber layer is at least coated by a PE external sheath, which has at least a part convex and extending outside and parallel coated by at least a steel strand or rod glass fiber. Compared with the prior art, the utility model has the advantages that with small diameter and small bending radius, the utility model can be freely erected in the complex village without affecting the transmission performance of the optical cable; with small optical cable diameter, the utility model can be slightly affected by the environmental climate and enlarge the erecting span of the optical cable; rapid construction saves constructing cost greatly; the utility model saves the material and lowers consumption.

Description

Self-support cable

Technical field

The utility model relates to a kind of optical cable, especially a kind of bearing capacity is big, is widely used in the general optical cable in village village that rural area large tracts of land scope is set up.

Background technology

Along with carrying out of the logical work in national CATV (cable television) village village, broadcasting and TV in all parts of the country start the climax that optical cable is built.But because the imbalance of China's various places economic development, the region is wide, and a large amount of networking expenses becomes the heavy burden of various places broadcasting and TV; Depend the support of state revenue and expenditure alone, the construction of network might be used more for a long time the time.Present employed cable configuration mainly includes optical fiber or optical cable core, ferrule and oversheath etc., and the optical cable product that this conventional design forms is when construction, generally need first frame steel strand wires, and then erecting optical cables, time-consuming, construction is complicated, and inefficiency; Because China region is wide, and the north-south climate temperature difference is big, optical cable commonly used is subject to the influence of variation of ambient temperature, and the transmission performance of optical cable is affected in addition, and a lot of places can not use or network signal can not transmit smoothly.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and provides a kind of cost lower, sets up conveniently efficient height, self-support cable applied widely.

The purpose of this utility model is finished by following technical solution, which comprises at least optical fiber, ferrule and oversheath pipe, and described ferrule also is coated with block water layer and foliated glass fibrage outward at least.

The outsourcing of described foliated glass fibrage is coated with PE oversheath pipe at least, and this oversheath pipe has at least a place also to be coated with at least one steel strand wires or shaft-like glass fibre abreast to the outer lug extension.

The utility model compared with prior art has following technique effect:

1, the power network construction of China is more perfect, and all there is low-voltage circuit in national most villages, and the utility model can make full use of the line of electric force bar and set up the own pole line of broadcasting and TV, and the span of most shaft towers is in 200 meters.

2, the part that the appropriate litigation fees of networking is big is the executive cost that sets up, and the load-carrying unit that the utility model utilization is own once just can get up optical cable installation, can construct fast, has saved a large amount of executive cost.Conventional optical cable construction generally needs first frame steel strand wires, and then erecting optical cables, and is time-consuming, and construction is complicated, and inefficiency.

3, diameter of the present utility model is little, and bending radius is little, can set up more freely in the village environment of complexity, does not influence the transmission performance of optical cable; And, be subjected to the influence of amblent air temperature just relatively just little because the diameter of optical cable is little, and as under equal conditions, small diameter fibre optic cables is subjected to icing, and the influence of strong wind is just little; Can increase the span of setting up of optical cable.

4, the utility model utilizes the foliated glass fiber can increase the span of optical cable installation, and in the place that is unfavorable for greater than 200 meters spans setting up, the bearing capacity that can make full use of the foliated glass fiber is constructed; And because from heavy and light, the span of general relatively optical cable installation is just big.

5, because the utility model optical cable cable footpath is little, material economy, China is a material consumption big country, economical with materials, it is extremely important to nation-building to reduce consumption.

6, the utility model with original GYFTC8Y optical cable relatively, novel optical cable is subjected to the influence of variation of ambient temperature little, and original GYFTC8Y optical cable is because China region is wide, and the north-south climate temperature difference is big, the transmission performance of optical cable is affected, and a lot of places can not use; The utility model can effectively be avoided influence of temperature variation, ensures the smooth transmission of network signal.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in detail: shown in Figure 1, the utility model includes optical fiber 1 or optical cable core, ferrule 2 and oversheath pipe 3 at least, and wherein optical fiber is formed by three strands at least.Described ferrule 2 outer block water layer 4 and the foliated glass fibrages 5 of also being coated with at least.The utility model can utilize foliated glass fiber 5 to increase the span of optical cable installation, and in the place that is unfavorable for greater than 200 meters spans setting up, the bearing capacity that can make full use of the foliated glass fiber is constructed;

The utility model is coated with PE oversheath pipe 3 at least in described foliated glass fibrage 5 outsourcings, and this oversheath pipe 3 has at least a place to be coated with at least one steel strand wires 7 or shaft-like glass fibre abreast to outer lug 6 extensions and with optical fiber.The utility model can utilize above-mentioned own load-carrying unit, once just can get up optical cable installation, can construct fast, has saved a large amount of executive cost.

Claims

1. a self-support cable which comprises at least optical fiber, ferrule and oversheath pipe, it is characterized in that outer layer that blocks water (4) and the foliated glass fibrage (5) of also being coated with at least of described ferrule (2).

2. self-support cable according to claim 1, it is characterized in that described foliated glass fibrage (5) outsourcing is coated with PE oversheath pipe (3) at least, this oversheath pipe (3) has at least a place also to be coated with at least one steel strand wires (7) or shaft-like glass fibre abreast to outer lug (6) extension.