CN205984372U - Novel energy -conservation cable that blocks water - Google Patents

Abstract

The utility model relates to a novel energy -conservation cable that blocks water, include the cable core that strands by many insulation core, insulation core comprises in the outside water -resistant tree insulating layer of conductor that blocks water with crowded package the conductor that blocks water, around wrapping the band that blocks water, metallic sheath water blocking layer and compound group water restrictive coating, the band intussuseption that blocks water is filled with the packing yarn that blocks water in proper order in the cable core outside, the utility model discloses compact structure, reasonable, it is convenient to make, and energy -conservation is effectual, the block -water performance is excellent, the novel energy -conservation cable that blocks water of long service life and environmental protection to be one kind.

Description

A kind of novel energy-conserving water repellent electric cable

Technical field

This utility model is related to technical field of cable, especially a kind of novel energy-conserving water repellent electric cable.

Background technology

With to insulation water suction and the research of water tree and the intensification of understanding, there is a growing awareness that water resistance centering is high The importance of piezoelectric forces cable.Increasing user and various areas occasion all propose waterproof to cable at present Require.The water repellent electric cable of therefore various structures arises at the historic moment.

Electrician currently used for power transmission adopts copper material mostly with conductive material, but due to internal copper resource scarcity, has 70% about copper material needs import, and climbing up and up so that the cost of investment of conductive material is more next with World Copper valency Higher, also excessive to the resource consumption of copper material.China is a country for the richness lean copper of aluminum, domestic have substantial amounts of bauxite resource but Less than making full use of, it is great waste.Country advocates and builds a conservation-minded society now, also is encouraging to adopt with " aluminum in industry Section copper ".

Because electrician is low with the conductivity of hard state fine aluminium wire material, yield strength is low, and deformation of creep amount is big, and percentage elongation is relatively Less, during for power transmission, can be because there is the larger deformation of creep, thus causing joint after long-term operation or current overload Loosen, contact resistance increases, and produces safety problem.Therefore, pure aluminum wire is all abandoned in a lot of application scenarios.

To solve the defect problem of fine aluminium at present in electrician's conductive material field Aluminium Alloys in Common Use material, " aluminum closes to realize The purpose of Jin Dynasty copper ", thus saving copper material consumption.

Traditional copper aluminum water-blocking conductor typically using pressing circular configuration, indulge bag semiconductive between layers and block water by conductor Band.But if using above-mentioned technique productions aluminium alloy water-blocking conductor, can not realize, because traditional aluminium alloy conductor life Production. art is first stranded after annealing, if produced using which, the semiconductor waterstop indulging bag when producing conductor is in annealing After can lose block-water effect.Therefore molded line must be produced using a kind of new technology to block water aluminium alloy conductor.

In addition traditional water repellent electric cable is normally only filled using blocking water and the band that blocks water to reach the purpose blocking water, but this If water repellent electric cable is immersed in water for a long time, do not have good block-water effect, cable insulation can enter moisture at short notice And there is puncture short.

Utility model content

The applicant is directed to the shortcoming in above-mentioned existing production technology, provides a kind of novel energy-conserving water repellent electric cable, so that It has the characteristics that good energy-conserving effect, block-water performance be excellent, long service life and environmental protection.

The technical scheme that this utility model is adopted is as follows：

A kind of novel energy-conserving water repellent electric cable, including the cable core being twisted into by many insulated wire cores, described insulated wire cores are by hindering Water conductor and extrude water resistant tree insulating barrier in water-blocking conductor outside and form, the wrapped band that blocks water, gold successively outside described cable core Belong to sheath water blocking layer and complex group water restrictive coating, in the band that blocks water, be filled with the filling yarn that blocks water.

Its further technical scheme is：

Described conductor is the aluminium alloy conductor that blocks water of molded line lay configuration；

Described insulating barrier adopts water resistant tree cross-linked polyethylene insulating material or modified water resistant tree second the third Insulation Material；

Described protective metal shell water blocking layer is extruded by aluminum or aluminum alloy bar and forms；

The described compound restrictive coating that blocks water is made up of vertical alclad plastic composite strip and modification high-density polyethylene.

The beneficial effects of the utility model are as follows：

(1) group water conductor adopts aluminum alloy materials, can preferably replace copper conductor cable, and it is easy to solve electrician's fine aluminium conductor The problems such as oxidation, creep-resistant property difference, and material cost is relatively low, economic performance is excellent；

(2) group water conductor adds the vertical pack arrangement of semiconductor waterstop using molded line twisting process, and conductor compacting coefficient is high, blocks water Effect is good, and can reduce conductor diameter 5%, saves each operation raw material usage amount more than 10%；

(3) insulating barrier adopts water resistant tree cross-linked polyethylene insulating material or modified water resistant tree second the third Insulation Material, can effectively keep away Exempting from insulate led to because of affecting by water tree puncture；

(4) restrictive coating adds modification high-density polyethylene structure using vertical alclad plastic composite strip, can improve the radial direction resistance of cable Outlet capacity.

Brief description

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

Wherein：1st, water-blocking conductor；2nd, water resistant tree insulating barrier；3rd, block water filling yarn；4th, block water band；5th, protective metal shell blocks water Layer；6th, it is combined the restrictive coating that blocks water.

Specific embodiment

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described.

As shown in figure 1, the present embodiment includes the cable core being twisted into by many insulated wire cores, described insulated wire cores are led by blocking water Body 1 and the water resistant tree insulating barrier 2 extruding outside in water-blocking conductor 1 form, and water-blocking conductor 1 is that the aluminum that blocks water of molded line lay configuration closes Golden conductor, can preferably replace copper conductor cable, and solves the problems such as electrician's fine aluminium conductor is oxidizable, creep-resistant property is poor, and And material cost is relatively low, economic performance is excellent, water-blocking conductor 1 also adds semiconductor waterstop using molded line twisting process and indulges bag simultaneously Structure, conductor compacting coefficient is high, and block-water effect is good, and can reduce conductor diameter 5%, saves each operation raw material usage amount More than 10%；Insulating barrier 2 adopts water resistant tree cross-linked polyethylene insulating material or modified water resistant tree second the third Insulation Material, can effectively avoid What insulation was led to because of affecting by water tree punctures；The wrapped band 4 that blocks water, protective metal shell water blocking layer successively outside described cable core 5 and complex group water restrictive coating 6, being filled with the filling yarn 3 that blocks water in the band 4 that blocks water；Described protective metal shell water blocking layer 5 is aluminum or aluminum closes Gold, the compound restrictive coating 6 that blocks water is made up of vertical alclad plastic composite strip and modification high-density polyethylene, can improve the radial water-resisting of cable Ability.

Above description is to explanation of the present utility model, is not the restriction to utility model, and this utility model is limited Scope, referring to claim, within protection domain of the present utility model, can make any type of modification.

Claims (5)

1. a kind of novel energy-conserving water repellent electric cable it is characterised in that：Including the cable core being twisted into by many insulated wire cores, described insulation Core is made up of in outside water resistant tree insulating barrier (2) of water-blocking conductor (1) water-blocking conductor (1) and extruding, outside described cable core according to The secondary wrapped band that blocks water (4), protective metal shell water blocking layer (5) and the compound restrictive coating (6) that blocks water, the band that blocks water is filled with resistance in (4) Water filling yarn (3).

2. as claimed in claim 1 a kind of novel energy-conserving water repellent electric cable it is characterised in that：Described water-blocking conductor (1) is molded line The aluminium alloy conductor that blocks water of lay configuration.

3. as claimed in claim 1 a kind of novel energy-conserving water repellent electric cable it is characterised in that：Described insulating barrier (2) adopts water resistant Tree cross-linked polyethylene insulating material or modified water resistant tree second the third Insulation Material.

4. as claimed in claim 1 a kind of novel energy-conserving water repellent electric cable it is characterised in that：Described protective metal shell water blocking layer (5) Material is aluminum or aluminum alloy.

5. as claimed in claim 1 a kind of novel energy-conserving water repellent electric cable it is characterised in that：The described compound restrictive coating (6) that blocks water It is made up of vertical alclad plastic composite strip and modification high-density polyethylene.