CN203288327U

CN203288327U - Anti-ultraviolet and waterproof parallel overhead cable

Info

Publication number: CN203288327U
Application number: CN2013202730936U
Authority: CN
Inventors: 沈学忠; 沈维文; 李忠杰
Original assignee: Anhui Hua Tian Cable Co Ltd
Current assignee: Anhui Hua Tian Cable Co Ltd
Priority date: 2013-05-20
Filing date: 2013-05-20
Publication date: 2013-11-13
Anticipated expiration: 2023-05-20

Abstract

The utility model discloses an anti-ultraviolet and waterproof parallel overhead cable which comprises a plurality of conductors. An aluminum coil layer, an aramid fiber braided layer, a foam plastic layer, a steel sleeve layer and an insulating layer are respectively coated out of the plurality of conductors for forming an insulated wire core. The steel sleeve layer is obtained through coating epoxy resin layers on the inner wall and the outer wall of the steel pipe. The thickness of the epoxy resin layer is not less than 600 mu m. The insulated wire cores are parallelly and separately placed longitudinally for forming a cable core. A water-blocking sleeve layer is formed outside the cable core through squeezing extrusion. Arc grooves are symmetrically arranged at two sides of the water-blocking sleeve layer between two adjacent insulated wire cores. An anti-ultraviolet reflection layer is coated at the outer wall of the water-blocking sleeve layer. The anti-ultraviolet and waterproof parallel overhead cable has an advantage of novel structure design. Through adopting a plurality of waterproof modes of foam plastic layer, steel sleeve layer, water-blocking sleeve layer, etc., the water-blocking performance of the cable is greatly improved. Furthermore the anti-ultraviolet reflection layer outside the water-blocking sleeve layer of the cable causes excellent anti-ultraviolet performance of the cable.

Description

A kind of antiultraviolet and water proof type parallel aerial cable

Technical field:

The utility model relates to aerial cable, relates in particular to a kind of antiultraviolet and water proof type parallel aerial cable.

Background technology:

A series of shortcomings that can solve overhead bare conductor of aerial cable, obtained the approval in market.Aerial cable freezes hotspots at rain and often because cable surface freezes, causes cable breakage etc., also cause simultaneously power consumption to increase, because be to be in a thermal steady state when normal operation after aerial cable is installed, conductor temperature is generally all more than 60 ℃, will cause the conductor oxidation if there is moisture to immerse, thereby make the contact resistance between single line in conductor increase conductor resistance, cause the energy loss of transmission line self to increase.

The aerial cable of the existing class that blocks water usually can only accomplish radial water-resisting and can not accomplish to block water fully, and major effect is conductor and the insulation property of cable after moisture is immersed in cable.In addition, cable, because the ultraviolet radiation in sunlight is easily aging, has reduced the useful life of cable.

The utility model content:

In order to make up the prior art problem, the purpose of this utility model is to provide a kind of antiultraviolet and water proof type parallel aerial cable, and is rational in infrastructure, improved block-water performance and the insulation property of cable, has good ultraviolet radiation preventing performance.

The technical solution of the utility model is as follows:

antiultraviolet and water proof type parallel aerial cable, comprise many conductors, it is characterized in that: described many conductors are coated with aluminium foil layer outward respectively, the aramid fiber yarn braid, the foamed plastic layer, the steel bushing layer, insulating barrier forms insulated wire cores, described steel bushing layer adopts the steel pipe inside and outside wall to be coated with the epoxy resin layer formation, the thickness of epoxy resin layer is not less than 600 μ m, the vertical formation cable core of putting in the parallel and interval of insulated wire cores, the outer extrusion moulding of the cable core restrictive coating that blocks water, the restrictive coating bilateral symmetry that blocks water between adjacent insulated wire cores is provided with arc groove, the restrictive coating outer wall that blocks water is coated with the antiultraviolet reflector.

Described antiultraviolet and water proof type parallel aerial cable is characterized in that: it is raw material that the antiultraviolet modified polyvinyl resin is adopted in described antiultraviolet reflector, and the antiultraviolet layer thickness is not less than 0.25mm.

The utility model has the advantages that:

The utility model structural design is novel, by adopting the multiple waterproof types such as foamed plastic layer, steel bushing layer, the restrictive coating that blocks water, improved greatly the block-water performance of cable, the outer antiultraviolet reflector of restrictive coating that blocks water of this outer cable makes cable have good anti-ultraviolet property.

Description of drawings:

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

Embodiment:

Referring to Fig. 1:

antiultraviolet and water proof type parallel aerial cable, comprise many conductors 1, the many outer aluminium foil layers 2 that are coated with respectively of conductor 1, aramid fiber yarn braid 3, foamed plastic layer 4, steel bushing layer 5, insulating barrier 6 forms insulated wire cores, steel bushing layer 5 adopts steel pipe 5-1 inside and outside wall to be coated with epoxy resin layer 5-2 formation, the thickness of epoxy resin layer 5-2 is not less than 600 μ m, the vertical formation cable core of putting in the parallel and interval of insulated wire cores, the outer extrusion moulding of the cable core restrictive coating 7 that blocks water, restrictive coating 7 bilateral symmetry that block water between adjacent insulated wire cores are provided with arc groove 8, restrictive coating 7 outer walls that block water are coated with antiultraviolet reflector 9.

It is raw material that the antiultraviolet modified polyvinyl resin is adopted in antiultraviolet reflector 9, the antiultraviolet layer thickness is not less than 0.25mm, improve anti-ultraviolet property, ultraviolet index is up to 15, under so high ultraviolet index, the absorption ultraviolet ray that the restrictive coating of common aerial insulated cable can be very fast, cause the high molecular fracture of restrictive coating material, cause the sheath cracking, shortened the useful life of cable.

Claims

1. an antiultraviolet and water proof type parallel aerial cable, comprise many conductors, it is characterized in that: described many conductors are coated with aluminium foil layer outward respectively, the aramid fiber yarn braid, the foamed plastic layer, the steel bushing layer, insulating barrier forms insulated wire cores, described steel bushing layer adopts the steel pipe inside and outside wall to be coated with the epoxy resin layer formation, the thickness of epoxy resin layer is not less than 600 μ m, the vertical formation cable core of putting in the parallel and interval of insulated wire cores, the outer extrusion moulding of the cable core restrictive coating that blocks water, the restrictive coating bilateral symmetry that blocks water between adjacent insulated wire cores is provided with arc groove, the restrictive coating outer wall that blocks water is coated with the antiultraviolet reflector.

2. antiultraviolet according to claim 1 and water proof type parallel aerial cable is characterized in that: it is raw material that the antiultraviolet modified polyvinyl resin is adopted in described antiultraviolet reflector, and the antiultraviolet layer thickness is not less than 0.25mm.