CN202584806U

CN202584806U - Tensile cable for high temperature prevention

Info

Publication number: CN202584806U
Application number: CN2012201265148U
Authority: CN
Inventors: 黄诚
Original assignee: Anhui Pacific Cable Group Co Ltd
Current assignee: ANHUI PACIFIC CABLE CO., LTD.
Priority date: 2012-03-29
Filing date: 2012-03-29
Publication date: 2012-12-05
Anticipated expiration: 2022-03-29

Abstract

The utility model discloses a tensile-type anti-high temperature cable, which comprises several conductors, and the several conductors are all formed by twisting tinned copper wires. The insulation layer is extruded, and several conductors wrapped in the insulation layer are twisted with each other to form a cable core. The outer layer of the cable core is wrapped in turn with a wrapping layer. There is a filling layer composed of high-temperature glass fiber filling in between, and a water-blocking layer, a shielding layer, and an inner sheath layer are wrapped around the outer sheath layer in sequence. Several tensile ropes are arranged inside the inner sheath layer, and outer In the sheath layer, cooling holes are distributed along the ring in the outer sheath layer. The utility model adopts high-temperature-resistant filling layer, wrapping layer and heat dissipation holes in the outer sheath layer, so that the cable has better thermal stability, and at the same time, the waterproof performance and tensile strength are also improved, prolonging the service life of the cable .

Description

The anti-high temperature of a kind of tensile type is used cable

Technical field:

The utility model relates to the control cable field, relates in particular to the anti-high temperature of a kind of tensile type and uses cable.

Background technology:

Continuous expansion along with industry sizes such as China Power industry, data communication industry, urban track traffic industry, car industry and shipbuildings; Demand to electric wire also will increase rapidly; Following electric wire already also has huge development potentiality, the control cable application suitable extensively.

Cable is when electric energy transmitting, because of conductor heating causes temperature rise, even continuous rising that can Yin Wendu and cause the hidden danger of burning.At present general cable is because of receiving the restriction of macromolecular material temperature resistant grade, and the cable surface heat radiation is slower, and the cable surface heat can't in time leave, thereby restriction and limit the ability of cable transmission electric energy has limited the ampacity of cable.

Therefore, how to improve the resistance to elevated temperatures of cable in the actual environment use, it is anti-that to pull performance be current problem demanding prompt solution.

The utility model content:

The purpose of the utility model provides the anti-high temperature of a kind of tensile type and use cable, is mainly used in tension in the laid processes and drags and require height, field of employment that heat resistance is good.

The technical scheme of the utility model is following:

The anti-high temperature of tensile type is used cable, comprises several conductors, and it is characterized in that: described several conductors all adopt the stranded formation of tinned copper wire; The single wire fracture percentage elongation is not less than 18%, the outer insulating barrier that is extruded with respectively of described several conductors, the mutual stranded formation cable core of several conductors of wrap insulate layer; Cable core is surrounded with lapping layer outward successively, and lapping layer adopts the overlapping wrapped formation of polyester belt, is provided with the high temp glass silk between lapping layer and the cable core and fills the packed layer that constitutes; Lapping layer is enclosed with water blocking layer, screen, inner restrictive coating outward successively; Be provided with several tension ropes in the inner restrictive coating, inner restrictive coating is provided with external sheath layer outward, along annular spread louvre is arranged in the external sheath layer.

The anti-high temperature of described tensile type is used cable, it is characterized in that: it is the high temperature fluoroplastics that described insulating barrier, inner restrictive coating, external sheath layer adopt material.

The anti-high temperature of described tensile type is used cable, and it is characterized in that: described water blocking layer adopts the overlapping wrapped formation of waterstop, and the rate of putting up is not less than 42%.

Compare with traditional high temperature-resistant cable, the superior part of the utility model is:

The utility model adopts the louvre of resistant to elevated temperatures packed layer, lapping layer and external sheath layer, makes cable have thermal stability preferably, and water resistance, tensile strength also are improved simultaneously, have prolonged the useful life of cable.

Description of drawings:

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

Embodiment:

Referring to Fig. 1:

The anti-high temperature of tensile type is used cable, comprises several conductors 1, and several conductors 1 all adopt the stranded formation of tinned copper wire; The single wire fracture percentage elongation is not less than 18%, the outer insulating barrier 2 that is extruded with respectively of several conductors 1, several conductors 1 mutual stranded formation cable core of wrap insulate layer 2; Cable core is surrounded with lapping layer 3 outward successively; Lapping layer 3 adopts the overlapping wrapped formation of polyester belt, is provided with the high temp glass silk between lapping layer 3 and the cable core and fills the packed layer 4 that constitutes, lapping layer 4 outer water blocking layer 5, screen 6, the inner restrictive coatings 7 of being enclosed with successively; Be provided with several tension ropes 8 in the inner restrictive coating 7; The inner restrictive coating 7 outer external sheath layers 9 that are provided with have louvre 10 along annular spread in the external sheath layer 9, and general louvre 10 can be selected elliptical aperture.

It is the high temperature fluoroplastics that insulating barrier 2, inner restrictive coating 7, external sheath layer 9 adopt material.

Water blocking layer 5 adopts the overlapping wrapped formation of waterstop, and the rate of putting up is not less than 42%.

The minimum bending radius of cable permission is not less than 12 times of the outside diameter of cable.

Claims

1. A tensile-type anti-high temperature cable, comprising several conductors, characterized in that: the several conductors are all formed by twisting tinned copper wires, and the elongation at break of a single wire is not less than 18%. The outer parts of several conductors are extruded with an insulating layer, and the several conductors wrapped with the insulating layer are twisted with each other to form a cable core. The outer layer of the cable core is wrapped with a wrapping layer in turn. Between the wrapping layer and the cable core, there is a filling layer composed of high-temperature glass fiber. The outer wrapping layer is wrapped with a water-blocking layer, a shielding layer, and an inner sheath layer in turn. There are several tensile ropes inside the inner sheath layer. An outer sheath layer is arranged outside the sheath layer, and heat dissipation holes are arranged in the outer sheath layer along a ring shape.

2. The tensile type high temperature resistant cable according to claim 1, characterized in that: the materials used for the insulating layer, inner sheath layer and outer sheath layer are high temperature fluoroplastics.

3. The tensile type high temperature resistant cable according to claim 1, characterized in that: the water blocking layer is formed by overlapping and wrapping water blocking tapes, and the covering rate is not less than 42%.