CN205092069U

CN205092069U - Coaxial optoelectrical composite low tension cable

Info

Publication number: CN205092069U
Application number: CN201520799245.5U
Authority: CN
Inventors: 陈永峰
Original assignee: Wuxi Shuguang Cable Co Ltd
Current assignee: Wuxi Shuguang Cable Co Ltd
Priority date: 2015-10-16
Filing date: 2015-10-16
Publication date: 2016-03-16
Anticipated expiration: 2025-10-16

Abstract

The utility model discloses a coaxial optoelectrical composite low tension cable, including being located the optical fiber unit of the pair twist in cable bosom, dredge outward around first conductive layer on the first insulation layer on crowded package first insulation layer outside optical fiber unit, and crowded package second insulating layer is dredged the second insulating layer outside around the second conductive layer outside first conductive layer, and the crowded third insulating layer that wraps outside the second conductive layer is at last at outmost crowded packet of oversheath on the cable, first insulation layer, second insulating layer and third insulating layer three's the ratio of cross section be 1: 2: 4, the cross section of second conductive layer be 2 times of first conductive layer cross section. The utility model discloses an external diameter of cable can be reduced greatly to the coaxial -type structure, makes the cable can bear certain pulling force moreover in the work progress.

Description

A kind of type coaxial photoelectric composite low-voltage cable

Technical field

The utility model relates to field of cable technology, particularly relates to a kind of type coaxial photoelectric composite low-voltage cable.

Background technology

Optoelectronic composite cable is applicable to make transmission line in broadband access network system, is a kind of novel access way, and its light harvesting fibre, transmission of electricity copper cash, in one, can solve the problem of broadband access, equipment electricity consumption, Signal transmissions.Its conventional structure be copper conductor together with fiber unit stranding, or using the filling part of fiber unit as other cables.

The shortcoming that this technology exists is that after stranding, the outside diameter of cable is comparatively large, and cable can not bear pulling force.

Utility model content

The utility model, in order to solve the problem of prior art, provides the external diameter that a kind of coaxial structure can reduce cable greatly, and makes cable can bear the photoelectric composite low-pressure cable of certain pulling force in work progress.

A kind of type coaxial photoelectric composite low-voltage cable described in the utility model, comprise the fiber unit of the pair twist being positioned at cable bosom, the first insulating barrier is extruded outside fiber unit, dredge around the first conductor layer outward at the first insulating barrier, the second insulating barrier is extruded outside the first conductor layer, dredge around the second conductor layer outward at the second insulating barrier, outside the second conductor layer, extrude the 3rd insulating barrier, finally extrude oversheath at cable outermost layer; The ratio of the cross section of the first described insulating barrier, the second insulating barrier and the 3rd insulating barrier three is 1:2:4; The cross section of the second described conductor layer is 2 times of the first conductor layer cross section.

Further improvement, the first described conductor layer is made up of 10-12 conductor.

Further improvement, the second described conductor layer is made up of 20-24 conductor.

Compared with prior art, the utility model beneficial effect is:

(1) external diameter is little, lightweight, takes up room little (under normal circumstances with the series of problems that many cables could solve, can replace at this with an optoelectronic composite cable);

(2) client's purchase cost is low, and operating expenses is low, and networking expense is low;

(3) there is superior tensile property, easy construction;

(4) cost-saving, using optical fiber as the use reserved to family, avoid secondary wiring;

(5) the cross section adoption rate design of each layer of cable, make cable in process of production, rounding property improves greatly, and quality is also greatly enhanced, and improves the properties of cable, and cost is also reduced greatly.

Accompanying drawing explanation

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

Embodiment

A kind of type coaxial photoelectric composite low-voltage cable as shown in Figure 1, using one group of fiber unit 1 as central core, the first insulating barrier 2 is extruded again at the skin of fiber unit 1, in the outside of the first insulating barrier 2 again with dredge around mode apply the first conductor layer 3, the second insulating barrier 4 is extruded again in the outside of the first conductor layer 3, in the outside of the second insulating barrier 4 with dredge around mode apply the second conductor layer 5, extrude the 3rd insulating barrier 6 in the outside of the second conductor layer again, then extrude one deck oversheath 7 in the outside of the 3rd insulating barrier 6.

In order to make the properties of cable again be improved, the ratio of the first described insulating barrier 2, second insulating barrier 4 and the cross section of the 3rd insulating barrier 6 three is 1:2:4; The cross section of the second described conductor layer 5 is 2 times of the first conductor layer 3 cross section.

The utility model embody rule approach is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.

Claims

1. a type coaxial photoelectric composite low-voltage cable, it is characterized in that: the fiber unit (1) comprising the pair twist being positioned at cable bosom, the first insulating barrier (2) is extruded outside fiber unit (1), dredge around the first conductor layer (3) outward at the first insulating barrier (2), the second insulating barrier (4) is extruded outside the first conductor layer (3), dredge around the second conductor layer (5) outward at the second insulating barrier (4), outside the second conductor layer (5), extrude the 3rd insulating barrier (6), finally extrude oversheath (7) at cable outermost layer; The ratio of the cross section of described the first insulating barrier (2), the second insulating barrier (4) and the 3rd insulating barrier (6) three is 1:2:4; The cross section of described the second conductor layer (5) is 2 times of the first conductor layer (3) cross section.

2. type coaxial photoelectric composite low-voltage cable according to claim 1, is characterized in that: described the first conductor layer (3) is made up of 10-12 conductor.

3. type coaxial photoelectric composite low-voltage cable according to claim 1, is characterized in that: described the second conductor layer (5) is made up of 20-24 conductor.