CN208752989U - Fire-retardant, the waterproof self-bearing type of one kind is far for power cable - Google Patents

Abstract

The utility model provides fire-retardant, the waterproof self-bearing type of one kind far for power cable, the cable includes power wire core and carrying reinforced core, power wire core and carrying reinforced core twisted synthesizing cable, gasket for packing is equipped with inside cable core, is equipped with belting layer, restrictive coating according to this outside cable core.By the way that phosphating steel wire insulated wire cores are added in electric-cable core, the tensile capacity of cable is improved, ensures that electric energy is transmitted in high-altitude at a distance, while extending the service life of cable；Oversheath uses fire-retardant polyethylene material, has certain fire-retardant and waterproof performance, improves the safety that cable uses.

Description

Fire-retardant, the waterproof self-bearing type of one kind is far for power cable

Technical field

The utility model relates to self-bearing types far for electric power field of cables, and specially a kind of fire-retardant, waterproof self-bearing type is far powered Power cable.

Background technique

With the development of society, communication cable and equipment using more and more extensive, with the development of communication technology, it is long away from From network transmission demand become increasingly conspicuous, self-support cable using more and more extensive.(for example as communication equipment transmission electric energy Cable signal transmitting, monitoring equipment provides electric energy etc.) self-bearing type far also just come into being for power cable, have and widely answer Use prospect.

Because the cable and high voltage iron tower cable and optical cable are laid jointly, in order to avoid between high voltage iron tower cable electromagnetic field Interfere with each other, using conductor, insulation, the structure of sheath, to increase the anti-interference ability of cable.The cable is aerial laying, To mitigate self weight, electric energy is transmitted using aluminium core；For reinforce cable itself tensile strength, using phosphorus identical with self-support cable Change steel wire to reinforce.

Utility model content

The prior art is carrying core as ridge and is attached to power cable jacket surface, carrying core and power cable sheath material Difference, long-play easily loosen.The utility model aim is to provide a kind of resistance reinforced using aluminium conductor, phosphating steel wire core Combustion, waterproof self-bearing type far for power cable, solve the deficiencies in the prior art.

In order to solve the above technical problems, the utility model uses following technical scheme:

Far for power cable, the cable includes power wire core and carrying reinforced core, is moved for a kind of fire-retardant, waterproof self-bearing type Line of force core and carrying reinforced core twisted synthesizing cable, are equipped with gasket for packing inside cable core, are equipped with belting layer, shield according to this outside cable core Jacket layer.

The power wire core in conductor outer cladding polyvinyl chloride insulation layer by forming, and conductor is the 2nd kind of stranded aluminum conductor, absolutely Edge layer is to extrude polyvinyl chloride insulation.

For the carrying reinforced core by forming in phosphating steel wire outer cladding polyvinyl chloride insulation layer, strengthening core is phosphatization steel Silk, insulating layer are to extrude polyvinyl chloride insulation.

The gasket for packing is PP filling rope, and the stranding band is non-woven fabrics band.

The oversheath is to extrude fire-retardant, waterproof polyethylene outer sheath.

The utility model compared with prior art, has the following advantages and beneficial effects:

1, long service life: the utility model cable, power wire core and carrying reinforced core twisted synthesizing cable；Insulating materials is Same material can be avoided the physics between prior art different materials and chemical reaction；There is one layer to be played protection outside cable core The oversheath of effect, prolongs the service life from still further aspect.

2, laying installation is convenient: the utility model cable, power wire core and carrying reinforced core twisted synthesizing cable；Add with existing Strong core is compared using ridge technology, and method is mutually similar with aerial insulated cable laying method when the cable laying, without having to worry about The problem of reinforced core falls off with power wire core is carried in heave.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model.

Figure label respectively indicates, 1- conductor；2- polyvinyl chloride insulation layer；3- gasket for packing；4- phosphating steel wire；5- stranding Band；6- oversheath.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, the utility model provides a kind of technical solution:

As shown in Figure 1, a kind of fire-retardant, waterproof self-bearing type is far for power cable, including conductor 1, polyvinyl chloride insulation layer 2, Gasket for packing 3, phosphating steel wire reinforced core, stranding band 5, oversheath 6；The conductor 1 is coated with the polyvinyl chloride insulation Layer 2, phosphating steel wire reinforced core polyvinyl chloride insulation layer 2 described in 4 outer cladding of phosphating steel wire forms, outside the conductor 1 It is coated with the polyvinyl chloride insulation layer 2 and phosphating steel wire reinforced core twisted synthesizing cable, is filled by the gasket for packing 3, is twisted At cable core, the stranding band 5 tightens cable core, insulated jacket, and the oversheath 6 described in 5 outer cladding of stranding band is completed Fire-retardant, the waterproof self-bearing type is far for power cable.

The oversheath 6 is using with fire-retardant, water-proof function flame-retardant polyethylene sheathing material composition.

The phosphating steel wire reinforced core uses phosphating coat >=2.5g/m, and tensile strength >=1700MPa phosphating steel wire 4 wraps Cover the composition of polyvinyl chloride insulation layer 2.

The oversheath 6 is using the fire retardant group that 10%~12% is added in the PE protective cover material with certain water-proof function At.

The conductor 1 uses the 2nd kind of stranded aluminum conductor, and polyvinyl chloride insulation layer 2 is insulated using polychlorostyrene is extruded, gasket for packing 3 Using PP filling rope, phosphating steel wire strengthening core is formed using 4 outer cladding polyvinyl chloride insulation layer 2 of phosphating steel wire, and stranding band 5 is adopted With non-woven fabrics band, oversheath 6 uses and extrudes waterproof, flame-proof polyvinyl chloride sheath.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of fire-retardant, waterproof self-bearing type is far for power cable, it is characterised in that: including conductor (1), polyvinyl chloride insulation layer (2), gasket for packing (3), phosphating steel wire reinforced core, stranding band (5), oversheath (6)；The conductor (1) is coated with described Polyvinyl chloride insulation layer (2), phosphating steel wire reinforced core polyvinyl chloride insulation layer as described in phosphating steel wire (4) outer cladding (2) it forms, the conductor (1) is coated with the polyvinyl chloride insulation layer (2) and phosphating steel wire reinforced core twisted synthesizing cable, leads to The gasket for packing (3) filling is crossed, is twisted into cable core, the stranding band (5) tightens cable core, insulated jacket, in the stranding Oversheath (6) described in band (5) outer cladding completes fire-retardant, the waterproof self-bearing type far for power cable.

2. cable according to claim 1, it is characterised in that: the oversheath (6) is fire-retardant, water-proof function using having Flame-retardant polyethylene sheathing material composition.

3. cable according to claim 1, it is characterised in that: the phosphating steel wire reinforced core using phosphating coat >= 2.5g/m, tensile strength >=1700MPa phosphating steel wire (4) coat polyvinyl chloride insulation layer (2) composition.

4. according to cable described in right 1, it is characterised in that: the conductor (1) uses the 2nd kind of stranded aluminum conductor, polyvinyl chloride Insulating layer (2) uses PP filling rope using polychlorostyrene insulation, gasket for packing (3) is extruded, and phosphating steel wire strengthening core uses phosphating steel wire (4) Outer cladding polyvinyl chloride insulation layer (2) composition, stranding band (5) use non-woven fabrics band, oversheath (6) using extrude waterproof, Flame-proof polyvinyl chloride sheath.