CN105589156A

CN105589156A - Optical fiber equipped transmission cable

Info

Publication number: CN105589156A
Application number: CN201610135439.4A
Authority: CN
Inventors: 钟斐琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2016-05-18

Abstract

The invention discloses an optical fiber equipped transmission cable which comprises an oversheath that packages the surface of an aramid fiber layer. Furthermore the aramid fiber layer is internally provided with a heat insulation layer. The heat insulation layer packages the surface of an inner protective layer. The inner protective layer packages the surface of a water blocking layer. The inner center of the water blocking layer is provided with a central reinforcing member. A buffer tube in the water blocking layer is uniformly arranged at the periphery of the central reinforcing member. Optical fibers are uniformly arranged in the buffer tube. The optical fiber equipped transmission cable does not contain any metal material and has a total insulation structure and a relatively high voltage resistance index. The optical fiber equipped transmission cable has advantages of facilitating arrangement and construction on an overhead electric power line in live operation, realizing no effect on operation of the line, realizing a capability of bearing relatively high tension by means of the aramid fiber material with high tensile strength, satisfying a requirement for large span of the overhead electric power line, preventing unfirmly closing and artificial gunshot, realizing relatively low thermal expansion coefficient, ensuring small radian change of the cable when large temperature change occurs, realizing small weight and obtaining low icing risk and low wind load.

Description

A kind of optical fiber handling cable

Technical field

The present invention relates to electrical equipment technical field, specifically a kind of optical fiber handling cable.

Background technology

Along with the fast-developing and scientific and technological progress of power industry, cable is to connect requisite instrument between various power equipments, intelligent grid requires to be aided with information technology for supporting in power system, realize informationization, automation and the interactive feature of electrical network, all kinds of composite ropes and the special optical cable of in power system, taking into account electric power transfer and information communication are electric power optical cable. There are many weak points in current power cable, as cable, UV resistant radiative aging, heat aging property are poor in use, expensive, cable does not have good soft structure, but some cables have soft structure there is no enough tensile strength, bending resistance, construction wrong causes crust injury or wearing and tearing etc., in long-term high voltage electric field, move, its surface is perishable, and the smooth smooth optical cable of oversheath can reduce galvano-cautery effectively and life-extending, therefore, for the problems referred to above, a kind of optical fiber handling cable is proposed.

Summary of the invention

The object of the present invention is to provide a kind of optical fiber handling cable, to solve the problem proposing in above-mentioned background technology.

For achieving the above object, the invention provides following technical scheme: a kind of optical fiber handling cable, comprise oversheath, described oversheath is wrapped in the surface of aramid fiber sand bed, and thermal insulation layer is installed in the inside of aramid fiber sand bed; Described thermal insulation layer is wrapped in the surface of sheath, and sheath is wrapped in the surface of water blocking layer; Described water blocking layer inside center central reinforce member is set, and the surrounding of central reinforce member evenly arranges loose sleeve pipe and is positioned at the inside of water blocking layer; The inside of described loose sleeve pipe evenly arranges optical fiber.

Preferably, described loose sleeve pipe is five, and the symmetrical periphery that central reinforce member is set.

Preferably, the cross-sectional area of described thermosphere is greater than oversheath.

Preferably, described aramid fiber sand bed is identical with the cross-sectional area of sheath.

Preferably, the cross-sectional area of described water blocking layer is greater than the cross-sectional area of sheath, and water blocking layer is positioned at same position with center line central reinforce member.

Compared with prior art, the invention has the beneficial effects as follows: in this kind of fiber optic cable, do not contain any metal material, all insulation structure and higher withstand voltage index, be conducive to erection construction on the overhead power line of charging operation, do not affect circuit operation, adopt the high anti-synthetic fibre material of tensile strength can bear compared with high tension, meet the large span requirement of overhead power line, can prevent again unfirmly closing and artificial gunslinging, thermal coefficient of expansion is less, and in the time that variations in temperature is very large, the radian of lightguide cable link changes very little, and it is lightweight, its shoe ice and wind lotus are also less.

Brief description of the drawings

Fig. 1 is overall structure schematic diagram of the present invention.

In figure: 1 water blocking layer, 2 central reinforce members, 3 thermal insulation layers, 4 oversheaths, 5 aramid fiber sand beds, 6 sheaths, 7 loose sleeve pipes, 8 optical fiber.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Refer to Fig. 1, the invention provides a kind of technical scheme: a kind of optical fiber handling cable, comprise oversheath 4, oversheath 4 is wrapped in the surface of aramid fiber sand bed 5, and thermal insulation layer 3 is installed in the inside of aramid fiber sand bed 5; Thermal insulation layer 3 is wrapped in the surface of sheath 6, and sheath 6 is wrapped in the surface of water blocking layer 1; Water blocking layer 1 inside center central reinforce member 2 is set, and the surrounding of central reinforce member 2 evenly arranges loose sleeve pipe 7 and is positioned at the inside of water blocking layer 1; The inside of pine sleeve pipe 7 evenly arranges optical fiber 8.

Pine sleeve pipe 7 is five, and the symmetrical periphery that central reinforce member 2 is set.

The cross-sectional area of thermal insulation layer 3 is greater than oversheath 4.

Aramid fiber sand bed 5 is identical with the cross-sectional area of sheath 6.

The cross-sectional area of water blocking layer 1 is greater than the cross-sectional area of sheath 6, and the center line with central reinforce member 2 of water blocking layer 1 is positioned at same position.

Operation principle: add nanometer CaCO3 material to be extruded into through plastic extruder heating plasticizing at oversheath 4 laminar rectangular, rectangularly from extruding, extrusion die is wound on the different size plug of wrapping machine clamping without water cooling, then after water quench sizing, depart from plug and be shaped to helical form sheath, oversheath 4 enters water quench after adding nanometer CaCO3 material to extrude thin by extruder, cooled be rectangularly wound on the plug of different size through wrapping machine again, then plug is pushed to the vulcanizing tank sulfuration of heating, after certain hour, go out tank, departing from plug can be made into.

Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is limited by claims and equivalent thereof.

Claims

1. an optical fiber handling cable, comprises oversheath (4), it is characterized in that: described oversheath (4) is wrapped in the surface of aramid fiber sand bed (5), and thermal insulation layer (3) is installed in the inside of aramid fiber sand bed (5); Described thermal insulation layer (3) is wrapped in the surface of sheath (6), and sheath (6) is wrapped in the surface of water blocking layer (1); Described water blocking layer (1) inside center central reinforce member (2) is set, and the surrounding of central reinforce member (2) evenly arranges loose sleeve pipe (7) and is positioned at the inside of water blocking layer (1); The inside of described loose sleeve pipe (7) evenly arranges optical fiber (8).

2. a kind of optical fiber handling cable according to claim 1, is characterized in that: described loose sleeve pipe (7) is five, and the symmetrical periphery that central reinforce member (2) are set.

3. a kind of optical fiber handling cable according to claim 1, is characterized in that: the cross-sectional area of described thermal insulation layer (3) is greater than oversheath (4).

4. a kind of optical fiber handling cable according to claim 1, is characterized in that: described aramid fiber sand bed (5) is identical with the cross-sectional area of sheath (6).

5. a kind of optical fiber handling cable according to claim 1, is characterized in that: the cross-sectional area of described water blocking layer (1) is greater than the cross-sectional area of sheath (6), and the center line with central reinforce member (2) of water blocking layer (1) is positioned at same position.