CN103400647A

CN103400647A - Outer wraparound ice-melting optical fiber composite overhead groundwire

Info

Publication number: CN103400647A
Application number: CN2013103510618A
Authority: CN
Inventors: 栗鸣; 徐拥军; 缪春燕; 何仓平; 陈兆峰; 缪旭光; 赵厚鹏
Original assignee: Zhongtian Hitachi Cable Co Ltd
Current assignee: Zhongtian Hitachi Cable Co Ltd
Priority date: 2013-08-14
Filing date: 2013-08-14
Publication date: 2013-11-20

Abstract

The invention relates to an outer wraparound ice-melting optical fiber composite overhead groundwire, which is mainly applied to the power grid of areas with frequently ice coating. The outer wraparound ice-melting optical fiber composite overhead groundwire is designed for the areas with frequent ice damages, when the groundwire is coated by ice, the insulate sheet wire is subjected to current-carrying warming for melting the ice, so that long-time power failure caused by the breaking and falling of a cable tower after the cable is coated by the ice is stopped. The outer wraparound ice-melting optical fiber composite overhead groundwire composite ground wire comprises optical fiber composite overhead groundwires, an insulating sheet wire, and a collar clamp, wherein the insulating sheet wire is laid directly on the surface of the optical fiber composite overhead ground wires; the insulating sheet wire is fixed on the surface of the optical fiber composite overhead ground wires by adopting the collar clamp; at least one insulating sheet wire is arranged; the insulating sheet wire is composed of a sheet wire conductor, polyimide films, and an insulating layer; the polyimide films of 2-4 layers and the thickness of 0.38-0.5 mm are wrapped uniformly outside the sheet wire conductor; the insulating layer with the thickness of 0.2-0.8 mm is extruded outside the polyimide films.

Description

A kind of outer formula ice-melt Optical Fiber composite overhead Ground Wire that twines

Technical field

What the present invention relates to is a kind ofly outer to twine formula ice-melt Optical Fiber composite overhead Ground Wire, is mainly used in the multiple district of icing electrical network.The present invention be directed to a kind of outer of ice damage prone areas design and twine formula ice-melt Optical Fiber composite overhead Ground Wire, when the ground wire icing, the insulation lenticular wire is carried out to galvanization intensification ice-melt, stop the disconnected long-time power outage that causes of cable shaft tower after the cable icing.

Background technology

China is the country that the coated by ice of overhead power transmission line disaster is serious, enter the new century after the occurrence frequency of transmission line ice damage accident obviously increase, suffer a loss more serious.South electric network had suffered serious line ice coating disaster in 2008, caused large tracts of land electric power, communication disruption.Therefore the function of wire is carried electric current exactly, and directly energising heats up and just can reach the ice-melt effect to wire, but ground wire deicing is more difficult, Optical Fiber composite overhead Ground Wire particularly, and because mounting means is by tower ground connection, can't the galvanization ice-melt.Domestic temporary without ripe outer ice-melt Optical Fiber composite overhead Ground Wire and the ice-melting mode thereof of twining.

Summary of the invention

A kind of outer formula ice-melt Optical Fiber composite overhead Ground Wire that twines that provides for above-mentioned weak point is provided, after the ground wire icing, take directly the alive method of this insulation lenticular wire to be removed to ground wire surface icing, stop the disconnected cable accident of Optical Fiber composite overhead Ground Wire icing.

Outside a kind of, twining formula ice-melt Optical Fiber composite overhead Ground Wire is achieved through the following technical solutions:

A kind of outer formula ice-melt Optical Fiber composite overhead Ground Wire that twines comprises Optical Fiber composite overhead Ground Wire, insulation lenticular wire and clip.On the Optical Fiber composite overhead Ground Wire surface, directly lay the insulation lenticular wire, the insulation lenticular wire adopts clip to be fixed on the Optical Fiber composite overhead Ground Wire surface.

Described insulation lenticular wire is provided with 1 at least.

Described Optical Fiber composite overhead Ground Wire refers to have the metal optical cable of electric power overhead ground wire and optical fiber communication ability dual-use function.Optical Fiber composite overhead Ground Wire (Optical fiber composite overhead groundwiers is called for short OPGW) is the ground wire for the new structure of high voltage power transmisson system communication line, has the dual-use function of common overhead ground wire and communications optical cable.

Described insulation lenticular wire is comprised of lenticular wire conductor, polyimide film and insulating barrier.The polyimide film that even wrapped 2～4 layer thicknesses are 0.38～0.5mm outside the lenticular wire conductor, then squeeze the insulating barrier that a layer thickness is about 0.2～0.8mm outside polyimide film.Described lenticular wire conductor comprises flat hard-drawn aluminium wire, flat aluminium alloy wire, flat cable copper conductor, flat copper alloy wire.Described insulating barrier insulating material is crosslinked polyethylene.Insulating barrier, except insulation, also plays the function of protection internal layer polyimide film, and described polyimide film is high-temperature insulation material, has guaranteed like this insulation property steady in a long-term of insulation lenticular wire.

Described insulation lenticular wire cross section is rectangle, can more fit tightly Optical Fiber composite overhead Ground Wire.The long limit laminating Optical Fiber composite overhead Ground Wire of lenticular wire.Lenticular wire according to the structure choice different size of the situation of each department icing and Optical Fiber composite overhead Ground Wire.Convenient for cable laying operation, fail to grow up in 8mm in described insulation lenticular wire cross section, the wide 6mm that is not more than.

Described clip is close to for the lenticular wire that will insulate the surface that is fixed on Optical Fiber composite overhead Ground Wire, and for the long-term dependability of clip, described clip 3 adopts stainless steel and aluminum alloy materials.

Outside a kind of, twine formula ice-melt optical power grounded waveguide reasonable in design, practicality is good.The outer formula ice-melt Optical Fiber composite overhead Ground Wire that twines of making through the present invention has following technical characterstic:

1, lay conveniently.This structure can directly be produced for new line and directly set up, also can be for the transformation of old circuit.On the circuit of existing Optical Fiber composite overhead Ground Wire, directly lay the insulation lenticular wire and then with clip is fixing, get final product, construct very convenient.

2, ice-melt performance.After the Optical Fiber composite overhead Ground Wire icing, can directly give insulation lenticular wire galvanization, be that insulation lenticular wire and Optical Fiber composite overhead Ground Wire bulk temperature raise, ice-melt surface icing.

3, stable insulation is reliable.The lenticular wire conductor has the double insulation protection outward, the internal layer polyimide film, and the outer protection that also has insulating barrier, the insulation property long-term safety is reliable and stable.

The accompanying drawing explanation

The invention will be further described below with reference to accompanying drawing:

Fig. 1 is a kind of outer formula ice-melt Optical Fiber composite overhead Ground Wire structural representation that twines.

Fig. 2 is a kind of outer schematic cross-section that twines the insulation lenticular wire of formula ice-melt Optical Fiber composite overhead Ground Wire.

Embodiment

With reference to accompanying

drawing

1,2, a kind of outer formula ice-melt Optical Fiber composite overhead Ground Wire that twines comprises Optical Fiber composite overhead Ground Wire 1, insulation lenticular wire 2, clip 3.On Optical Fiber composite overhead Ground Wire 1 surface, directly lay 1 and thoroughly do away with edge lenticular wire 2, insulation lenticular wire 2 adopts clip 3 to be fixed on the Optical Fiber composite overhead Ground Wire surface.

With reference to the described insulation lenticular wire 2 of accompanying drawing 2, by lenticular wire conductor 4, polyimide film 5 and insulating barrier 6, formed.At the polyimide film 5 that outer evenly wrapped 2～4 layer thicknesses of lenticular wire conductor 4 are 0.38～0.5mm, then in the outer crowded a layer thickness of polyimide film 5, be about the insulating barrier 6 of 0.2～0.8mm.

Described lenticular wire conductor 4 comprises flat hard-drawn aluminium wire, flat aluminium alloy wire, flat cable copper conductor or flat copper alloy wire.Described insulating barrier 6 insulating material are crosslinked polyethylene.Insulating barrier 6, except insulation, also plays the function of protection internal layer polyimide film 5, and polyimide film 5 is high-temperature insulation material, has guaranteed like this insulation property steady in a long-term of insulation lenticular wire.

Described insulation lenticular wire 2 cross sections are rectangle, can more fit tightly Optical Fiber composite overhead Ground Wire.The long limit laminating Optical Fiber composite overhead Ground Wire of lenticular wire.Lenticular wire according to the structure choice different size of the situation of each department icing and Optical Fiber composite overhead Ground Wire.Convenient for cable laying operation, fail to grow up in 8mm in described insulation lenticular wire 2 cross sections, the wide 6mm that is not more than.

Described clip 3 is close to for the lenticular wire that will insulate the surface that is fixed on Optical Fiber composite overhead Ground Wire, and for the long-term dependability of clip, it is best that described clip 3 adopts stainless steel or aluminum alloy materials.

Claims

1. one kind twines formula ice-melt Optical Fiber composite overhead Ground Wire outward, it is characterized in that: comprise Optical Fiber composite overhead Ground Wire, insulation lenticular wire and clip; On the Optical Fiber composite overhead Ground Wire surface, directly lay the insulation lenticular wire, the insulation lenticular wire adopts clip to be fixed on the Optical Fiber composite overhead Ground Wire surface.

2. according to claim 1ly a kind ofly outer twine formula ice-melt Optical Fiber composite overhead Ground Wire, it is characterized in that; Described insulation lenticular wire is provided with 1 at least.

3. according to claim 1ly a kind ofly outer twine formula ice-melt Optical Fiber composite overhead Ground Wire, it is characterized in that: described insulation lenticular wire is comprised of lenticular wire conductor, polyimide film and insulating barrier; Outside the lenticular wire conductor evenly wrapped 2～4 layers, thickness is the polyimide film of 0.38～0.5mm, and outside polyimide film, squeezing a layer thickness is the insulating barrier of 0.2～0.8mm.

4. according to claim 3ly a kind ofly outer twine formula ice-melt Optical Fiber composite overhead Ground Wire, it is characterized in that: described lenticular wire conductor comprises flat hard-drawn aluminium wire, flat aluminium alloy wire, flat cable copper conductor, flat copper alloy wire.

5. according to claim 3ly a kind ofly outer twine formula ice-melt Optical Fiber composite overhead Ground Wire, it is characterized in that: described insulating barrier insulating material is crosslinked polyethylene.

6. a kind of outer formula ice-melt Optical Fiber composite overhead Ground Wire that twines according to claim 1, it is characterized in that: described insulation lenticular wire cross section is rectangle, the long limit laminating Optical Fiber composite overhead Ground Wire of lenticular wire, fail to grow up in 8mm in described insulation lenticular wire cross section, the wide 6mm that is not more than.

7. according to claim 1ly a kind ofly outer twine formula ice-melt Optical Fiber composite overhead Ground Wire, it is characterized in that: described clip adopts stainless steel or aluminum alloy materials.