CN104616772A

CN104616772A - Multi-core waterproof and moistureproof cable

Info

Publication number: CN104616772A
Application number: CN201510048789.2A
Authority: CN
Inventors: 梁继勇; 严峙胜
Original assignee: ANHUI GAOGOU CABLE Co Ltd
Current assignee: ANHUI GAOGOU CABLE Co Ltd
Priority date: 2015-01-30
Filing date: 2015-01-30
Publication date: 2015-05-13

Abstract

The invention discloses a multi-core waterproof and moistureproof cable, comprising a cable body that includes a plurality of conductors, an insulating layer, a shielding layer and an outer sheath. The cross section of the cable body is circular in shape; the plurality of conductors are arranged in the cable body; the insulating layer is arranged outside all conductors; the shielding layer is extruded outside the insulating layer; the gap part between the shielding layer and the insulating layer is filled with a filling layer; an impervious layer is tightly extruded outside the shielding layer; a plurality of drainage cores are arranged in the impervious layer; a metal armor layer is extruded outside the impervious layer; an epoxy resin layer is arranged outside the metal armor layer; a reinforced braid is tightly extruded outside the epoxy resin layer; the outer sheath is extruded outside the reinforced braid. The multi-core waterproof and moistureproof cable has the advantages of reasonable structural design, good use effect and strong moisture resistance.

Description

The waterproof and dampproof cable of a kind of multicore

Technical field

The present invention relates to field of cables, particularly relate to the waterproof and dampproof cable of a kind of multicore.

Background technology

At present, along with the development of science and technology, the demand of people to cable also gets more and more, cable is a kind of common data-signal transmission equipment, there is message capacity large, the advantages such as the high and security performance of transmission stability is good, but existing cable covering uses some comparatively general polymer, not only useful life is short, and the situation of contaminated environment can be there is, when cable is at the local work that some environment are comparatively moist, general cable is because of problems such as its structures, block water can not divide and enter in cable inside, thus easily cause the electric leakage of cable or the accident of system short-circuit, bring very large loss.

Summary of the invention

In order to overcome the defect of above-mentioned prior art, the object of this invention is to provide the waterproof and dampproof cable of a kind of multicore.

The present invention takes following technical scheme to realize: the waterproof and dampproof cable of a kind of multicore, and it comprises cable body, and described cable body comprises conductor, insulating barrier, screen and oversheath, and the cross section of described cable body is circular configuration; Described cable body inside is provided with many conductors; Insulating barrier is provided with outside described conductor; One deck screen is extruded with outside described insulating barrier; Gap portion between described screen and insulating barrier is provided with packed layer; Described screen closely extrudes one deck impermeable stratum outward; Described impermeable stratum inside is provided with many guide cores; Layer of metal armour is extruded outside described impermeable stratum; Described metal armor layers is outside equipped with one deck epoxy resin layer; Described epoxy resin layer closely extrudes one deck reinforcing braid outward; One deck oversheath is extruded outside described reinforcing braid.

The above-mentioned waterproof and dampproof cable of a kind of multicore, to be that many tinned copper wires are stranded form described conductor.

The above-mentioned waterproof and dampproof cable of a kind of multicore, described metal armor layers is steel-tape armouring layer, steel wire armor layer or chain aluminium alloy armored layer.

The above-mentioned waterproof and dampproof cable of a kind of multicore, described impermeable stratum is made up of thermoplasticity low-density polyethylene material.

The above-mentioned waterproof and dampproof cable of a kind of multicore, described epoxy resin layer adopts plastic-blasting mode to process, and the thickness of described epoxy resin layer is 1mm ~ 5mm.

The above-mentioned waterproof and dampproof cable of a kind of multicore, described reinforcing braid is wound around by nonmagnetic metal tape or wire to make.

Owing to have employed such scheme, compared with prior art, the present invention has following beneficial effect:

1, described impermeable stratum is made up of thermoplasticity low-density polyethylene material, when cable runs into moisture or be placed in moist occasion, effectively can stop the intrusion of moisture, considerably increase the useful life of cable, also improves the fail safe that cable uses.

2, described epoxy resin layer adopts plastic-blasting mode to process, and fully can improve the water resistance of cable in wet environment, extends the useful life of cable.

3, described reinforcing braid is wound around by nonmagnetic metal tape or wire to make; thus effectively can eliminate the problem that magnetic material armouring can produce eddy current; the effect of more protection can also be played to the construction of cable simultaneously; effectively reduce the damage be subject to when cable receives impact; effectively extend the useful life of cable, reduce maintenance alternative costs.

Accompanying drawing explanation

Fig. 1 is cross-sectional structure schematic diagram of the present invention;

Wherein: 1, cable body; 2, conductor; 3, packed layer; 4, insulating barrier; 5, screen; 6, impermeable stratum; 7, guide core; 8, metal armor layers; 9, epoxy resin layer; 10, reinforcing braid; 11, oversheath.

Embodiment

As shown in Figure 1, the waterproof and dampproof cable of a kind of multicore, it comprises cable body 1, and described cable body 1 comprises conductor 2, insulating barrier 4, screen 5 and oversheath 11, and the cross section of described cable body 1 is circular configuration; Described cable body 1 inside is provided with many conductors 2; Insulating barrier 4 is provided with outside described conductor 2; One deck screen 5 is extruded with outside described insulating barrier 4; Gap portion between described screen 5 and insulating barrier 4 is provided with packed layer 3; Described screen 5 is outer closely extrudes one deck impermeable stratum 6; Described impermeable stratum 6 inside is provided with many guide cores 7; Layer of metal armour 8 is extruded outside described impermeable stratum 6; Described metal armor layers 8 is outside equipped with one deck epoxy resin layer 9; Described epoxy resin layer 9 is outer closely extrudes one deck reinforcing braid 10; One deck oversheath 11 is extruded outside described reinforcing braid 10.

Described conductor 2 adopts that many tinned copper wires are stranded to be formed, and not only increases the structural strength of conductor 2, also makes its electric conductivity more outstanding, and not fragile; The insulating barrier 4 of described conductor 2 outer cladding effectively can improve the insulation property of cable body 1, makes its work more stable; The packed layer 3 that between described insulating barrier 4 and screen 5, gap portion is arranged is mainly used in filling the gap portion in cable body 1, thus play protection against the tide and insulating effect, there is higher melt temperature, suitable hardness, viscosity and good low-temperature flexibility; Described screen 5 effectively can improve the shielding properties of cable, avoids producing insulation breakdown phenomenon, reduces the impact of outside electromagnetic interference on electric field simultaneously; The impermeable stratum 6 arranged in described cable body 1 can prevent moisture from passing through to enter in conductor 2, avoids moisture to invade conductor 2 inner, prevents the situation of system short-circuit; The many guide cores 7 arranged in described impermeable stratum 6 can play the effect of ground wire, also effectively raise the shield effectiveness of cable; The working strength that described metal armor layers 8 is steel-tape armouring layer, steel wire armor layer or chain aluminium alloy armored layer substantially increase cable body 1, makes its longer service life; Described reinforcing braid 10 is wound around by nonmagnetic metal tape or wire to make, thus effectively can eliminate the problem that magnetic material armouring can produce eddy current, the effect of more protection can also be played to the construction of cable simultaneously, effectively reduce the damage be subject to when cable is subject to impacting, effectively extend the useful life of cable, reduce maintenance alternative costs; Described oversheath 11 adopts smoke halogen-free flame-proof plastic for low to be made, thus there is fire-retardant fireproof characteristic, during fire, cable is nonflammable, and can stop burning after flame spread the expansion with disaster, the smog produced during cable fire is also very thin, is conducive to the evacuation of personnel and the carrying out of fire-fighting work.

The above is the embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in the present patent application scope change or modify, and are included in patent claim of the present invention.

Claims

1. the waterproof and dampproof cable of multicore, it comprises cable body, and described cable body comprises conductor, insulating barrier, screen and oversheath, it is characterized in that: the cross section of described cable body is circular configuration; Described cable body inside is provided with many conductors; Insulating barrier is provided with outside described conductor; One deck screen is extruded with outside described insulating barrier; Gap portion between described screen and insulating barrier is provided with packed layer; Described screen closely extrudes one deck impermeable stratum outward; Described impermeable stratum inside is provided with many guide cores; Layer of metal armour is extruded outside described impermeable stratum; Described metal armor layers is outside equipped with one deck epoxy resin layer; Described epoxy resin layer closely extrudes one deck reinforcing braid outward; One deck oversheath is extruded outside described reinforcing braid.

2. the waterproof and dampproof cable of a kind of multicore according to claim 1, is characterized in that: to be that many tinned copper wires are stranded form described conductor.

3. the waterproof and dampproof cable of a kind of multicore according to claim 1, is characterized in that: described metal armor layers is steel-tape armouring layer, steel wire armor layer or chain aluminium alloy armored layer.

4. the waterproof and dampproof cable of a kind of multicore according to claim 1, is characterized in that: described impermeable stratum is made up of thermoplasticity low-density polyethylene material.

5. the waterproof and dampproof cable of a kind of multicore according to claim 1, is characterized in that: described epoxy resin layer adopts plastic-blasting mode to process, and the thickness of described epoxy resin layer is 1mm ~ 5mm.

6. the waterproof and dampproof cable of a kind of multicore according to claim 1, is characterized in that: described reinforcing braid is wound around by nonmagnetic metal tape or wire to make.