CN203300310U

CN203300310U - Optical-fiber composite low-voltage cable

Info

Publication number: CN203300310U
Application number: CN201320269045XU
Authority: CN
Inventors: 应存世
Original assignee: NINGBO RIYUE ELECTRIC WIRE AND CABLES MANUFACTURING Co Ltd
Current assignee: NINGBO RIYUE ELECTRIC WIRE AND CABLES MANUFACTURING Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2013-11-20
Anticipated expiration: 2023-05-17

Abstract

The utility model discloses an optical-fiber composite low-voltage cable. The cable comprises an outer sheath, an inner sheath, multi-group cabling cores arranged in the inner sheath and an optical unit. Each cabling core is formed by a conductor which is formed through twisting a plurality of metal leads and an insulating layer which wraps the conductor. The optical unit is arranged on an edge side of the cabling cores. A filler is arranged among the inner sheath, the cabling cores and the optical unit. Compared to the prior art, by using the cable of the utility model, through arranging the optical unit on the edge side of the cabling cores, a composite function of optical communication and electric power transmission is possessed and the optical unit is not influenced during production, installation and laying processes, wherein an experiment shows that the optical unit has a minimal influence on optical fiber attenuation and strain.

Description

Optical fiber composite low-voltage cable

Technical field

The utility model belongs to the cable technology field, is specifically related to a kind of optical fiber composite low-voltage cable.

Background technology

Around State Grid Corporation of China, build the general objective of strong intelligent grid, state net company introduces the solution of power optical fiber to family, at the low-pressure end communication access net, adopt optical fiber composite low-voltage cable (OPLC), realize that intelligent electric meter is to family, coordinate passive optical network technique, the business such as the collection of carrying power information, intelligent power two-way interactive, the fusion of many nets, realize the Informatization Development of power optical fiber to family.At present, China cable producer can research and develop and produce the enterprise of optical fiber composite low-voltage cable few, is mainly that power cable is researched and developed with optical cable, the enterprise of production capacity is less because possess simultaneously.Because the light unit can not be subjected to the extraneous mechanical external force effects such as stretching, flattening, impact and flexion torsion, it is vital therefore how protecting the light unit unaffected in production, mounting and installation process.

The utility model content

The purpose of this utility model is to provide a kind of optical fiber composite low-voltage cable of new construction, and it not only has the complex function of optical communication and electric power transfer, and its light unit is unaffected in production, mounting and installation process.

For realizing this purpose, the technical solution of the utility model is: a kind of optical fiber composite low-voltage cable, comprise oversheath, inner sheath and be located at many compositions cable core and the light unit in inner sheath, described one-tenth cable core is comprised of the many stranded conductors that form of plain conductor and the insulating barrier that is coated on described conductor, described smooth unit is arranged at into the cable core avris, described inner sheath with become between cable core and light unit to be provided with filler.

As preferably, between described oversheath and inner sheath, be provided with the braiding armour.

As preferably, annealing copper wire or tinned copper wire braiding that described braiding armour is 0.2～0.4mm by diameter form.

As preferably, described one-tenth cable core and light unit and filler are attached at the inner sheath inwall by one deck tape for cables parcel.

As preferably, described oversheath is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.

Compared with prior art, the utility model, by the light unit is arranged at into to the cable core avris, the results showed that it is minimum on optical fiber attenuation and strain impact.In addition, the outer side edges gap structure that adds the light inlet unit also helps optical fiber composite low-voltage cable in the stranded process of stranding, to increase the stranded remaining long of optical fiber.

The accompanying drawing explanation

Fig. 1 is cross-sectional view of the present utility model.

Wherein: 1. conductor, 2. insulating barrier, 3. filler, 4. tape for cables, 5. smooth unit, 6. inner sheath, 7. dress layer, 8. oversheath, 9. tear rope.

Embodiment

In conjunction with the embodiments the utility model is further illustrated with reference to the accompanying drawings.

As shown in Figure 1, a kind of optical fiber composite low-voltage cable, comprise oversheath 8, inner sheath 6 and be located at many compositions cable core and the light unit 5 in inner sheath 6, described one-tenth cable core is comprised of the many stranded conductors that form 1 of plain conductor and the insulating barrier 2 that is coated on described conductor, described smooth unit is arranged at into the cable core avris, described inner sheath with become between cable core and light unit to be provided with filler 3, become cable core and light unit and filler to be attached at inner sheath 6 inwalls by one deck tape for cables 4 parcels.Between described oversheath and inner sheath, being provided with by diameter is the annealing copper wire of 0.2～0.4mm or the braiding armour that the tinned copper wire braiding forms.Described oversheath is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.

The improvement that the utility model carries out mainly for the optical fiber composite low-voltage cable structure, the foregoing is only the utility model preferred embodiment, non-so namely limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as with the utility model specification and graphic content, doing, all should be contained in the scope of the claims of the present utility model.

Claims

1. optical fiber composite low-voltage cable, comprise oversheath, inner sheath and be located at many compositions cable core and the light unit in inner sheath, it is characterized in that, described one-tenth cable core is comprised of the many stranded conductors that form of plain conductor and the insulating barrier that is coated on described conductor, described smooth unit is arranged at into the cable core avris, described inner sheath with become between cable core and light unit to be provided with filler.

2. optical fiber composite low-voltage cable according to claim 1, is characterized in that, between described oversheath and inner sheath, is provided with the braiding armour.

3. optical fiber composite low-voltage cable according to claim 2, is characterized in that, annealing copper wire or tinned copper wire braiding that described braiding armour is 0.2～0.4mm by diameter form.

4. optical fiber composite low-voltage cable according to claim 1, is characterized in that, described one-tenth cable core and light unit and filler are attached at the inner sheath inwall by one deck tape for cables parcel.

5. optical fiber composite low-voltage cable according to claim 1, is characterized in that, described oversheath is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.