CN203288327U - Anti-ultraviolet and waterproof parallel overhead cable - Google Patents

Abstract

The utility model discloses an anti-ultraviolet and waterproof parallel overhead cable, which comprises a plurality of conductors, each of which is coated with an aluminum foil layer, an aramid fiber braided layer, a foamed plastic layer, a steel sheath layer and an insulating layer. Insulated wire core is formed. The steel sheath layer is made of epoxy resin layer coated on the inner and outer walls of the steel pipe. The thickness of the epoxy resin layer is not less than 600 μm. The water-blocking sheath layer is symmetrically provided with curved grooves on both sides of the water-blocking sheath layer between adjacent insulated wire cores, and the outer wall of the water-blocking sheath layer is coated with an anti-ultraviolet reflection layer. The utility model has a novel structural design, and greatly improves the water-blocking performance of the cable by adopting various waterproof methods such as a foamed plastic layer, a steel sheath layer, and a water-blocking sheath layer. The anti-ultraviolet reflective layer makes the cable have excellent anti-ultraviolet performance.

Description

A kind of anti-ultraviolet and waterproof parallel overhead cable

Technical field:

The utility model relates to overhead cables, in particular to an ultraviolet-proof and waterproof parallel overhead cable.

Background technique:

The ability of overhead cables to solve a series of shortcomings of overhead bare conductors has been recognized by the market. Overhead cables often break due to ice on the surface of the cables in areas prone to rain and freezing, which also leads to increased energy consumption, because the overhead cables are in a thermally stable state during normal operation after installation, and the conductor temperature is generally above 60°C. If there is moisture immersion, it will cause the conductor to oxidize, which will increase the contact resistance between the single wires in the conductor, thereby increasing the conductor resistance, resulting in an increase in the energy loss of the transmission line itself.

Existing water-blocking overhead cables usually can only achieve radial water-blocking but not complete water-blocking. When water soaks into the cable, it mainly affects the conductor and insulation performance of the cable. In addition, cables are prone to aging due to ultraviolet radiation in the sun, which reduces the service life of the cables.

Utility model content:

In order to make up for the existing technical problems, the purpose of this utility model is to provide an anti-ultraviolet and waterproof parallel overhead cable, which has a reasonable structure, improves the water resistance and insulation performance of the cable, and has excellent anti-ultraviolet radiation performance.

The technical scheme of the utility model is as follows:

The anti-ultraviolet and waterproof parallel overhead cable includes multiple conductors, and is characterized in that: the multiple conductors are respectively covered with an aluminum foil layer, an aramid wire braided layer, a foamed plastic layer, a steel sheath layer, and an insulating layer To form an insulated wire core, the steel sheath layer is formed by coating the inner and outer walls of a steel pipe with an epoxy resin layer. The thickness of the epoxy resin layer is not less than 600 μm. The insulated wire cores are placed vertically in parallel and at intervals to form a cable core. A water-blocking sheath layer is formed by molding, arc-shaped grooves are symmetrically arranged on both sides of the water-blocking sheath layer between adjacent insulated wire cores, and the outer wall of the water-blocking sheath layer is coated with an anti-ultraviolet reflection layer.

The anti-ultraviolet and waterproof parallel overhead cable is characterized in that: the anti-ultraviolet reflective layer is made of anti-ultraviolet modified polyethylene resin, and the thickness of the anti-ultraviolet layer is not less than 0.25mm.

The utility model has the advantages of:

The utility model has a novel structural design, and greatly improves the water-blocking performance of the cable by adopting various waterproof methods such as a foamed plastic layer, a steel sheath layer, and a water-blocking sheath layer. The anti-ultraviolet reflective layer makes the cable have excellent anti-ultraviolet performance.

Description of drawings:

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

Detailed ways:

See Figure 1:

Anti-ultraviolet and waterproof parallel overhead cable, including multiple conductors 1, the multiple conductors 1 are respectively coated with aluminum foil layer 2, aramid fiber braided layer 3, foamed plastic layer 4, steel sheath layer 5, and insulating layer 6 To form an insulated wire core, the steel sheath layer 5 is formed by coating the inner and outer walls of a steel pipe 5-1 with an epoxy resin layer 5-2, the thickness of the epoxy resin layer 5-2 is not less than 600 μm, and the insulated wire cores are arranged vertically in parallel and at intervals Cable core, the cable core is extruded with a water-blocking sheath layer 7, and the two sides of the water-blocking sheath layer 7 between adjacent insulated cores are symmetrically provided with arc-shaped grooves 8, and the outer wall of the water-blocking sheath layer 7 Coated with an anti-ultraviolet reflective layer 9.

The anti-ultraviolet reflective layer 9 is made of anti-ultraviolet modified polyethylene resin, the thickness of the anti-ultraviolet layer is not less than 0.25mm, and the anti-ultraviolet performance is improved. The ultraviolet index is as high as 15. Under such a high ultraviolet index, the sheath of ordinary overhead insulated cables The layer will quickly absorb ultraviolet light, causing the polymer of the sheath layer to break, resulting in cracking of the sheath and shortening the service life of the cable.

Claims (2)

1. An anti-ultraviolet and waterproof parallel overhead cable, comprising a plurality of conductors, characterized in that: the plurality of conductors are respectively coated with an aluminum foil layer, an aramid fiber braided layer, a foamed plastic layer, and a steel sheath layer and insulating layer constitute the insulated wire core, and the steel sheath layer is made of epoxy resin layer coated on the inner and outer walls of the steel pipe, the thickness of the epoxy resin layer is not less than 600 μm, and the insulated wire cores are placed in parallel and vertically at intervals to form the cable core. The cable core is extruded with a water-blocking sheath layer, and the water-blocking sheath layer between adjacent insulated cores is symmetrically provided with arc-shaped grooves on both sides, and the outer wall of the water-blocking sheath layer is coated with an anti-ultraviolet reflective layer . 2. The anti-ultraviolet and waterproof parallel overhead cable according to claim 1, characterized in that: the anti-ultraviolet reflective layer is made of anti-ultraviolet modified polyethylene resin, and the thickness of the anti-ultraviolet layer is not less than 0.25mm.

Images