CN209447575U

CN209447575U - A kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable

Info

Publication number: CN209447575U
Application number: CN201920596597.9U
Authority: CN
Inventors: 王立夺; 王松博; 袁小珍
Original assignee: Hebei Chaoyang Cable Co Ltd
Current assignee: Hebei Chaoyang Cable Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2019-09-27
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to power cable technical fields, more particularly to a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable, including aluminium alloy conductor, aluminium alloy conductor is four strands of aluminium alloy cables, it is tangent mutually between aluminium alloy conductor, the outside of aluminium alloy conductor is equipped with filled layer, the outside of filled layer is coated with inner insulating layer, the outside of inner insulating layer is enclosed with steel belt layer, the outside of steel belt layer is coated with external insulation layer, the outside of external insulation layer is enclosed with flame retardant coating, and the outside of flame retardant coating is enclosed with restrictive coating.In the utility model, the material of inner insulating layer, external insulation layer and restrictive coating is cross linked insulation polyvinyl chloride, three-layer insulated mechanism is equipped in cable, so that the insulation performance of power cable greatly promotes, and cable inner clip is connected to flame retardant coating, so that the fire resistance of cable greatly improves, the setting of heat release hole can be accelerated to radiate, and the heat that conductor generates all is spread out by steel belt layer, it is practical, it is suitble to promote.

Description

A kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable

Technical field

The utility model relates to power cable technical field more particularly to a kind of aluminium alloy cross linked insulation pvc sheaths Fireproof power cable.

Background technique

Because urban development is rapid, the laying of State Grid's cable is also in each area throughout the country, cable laying conduct A kind of national service engineering, either cost problem or safety problem are all the directions that we need to go into seriously now, existing Most of the power cable in generation is manufactured using copper core, causes cost is high not say, can also be generated because of its weight issue huge Laying expense, insulation effect is also to be developed, and present cable does not have fire resistance, leads to cable after fire Reconstruction be also a large number of spending, for above several problems, we devise a kind of aluminium alloy cross linked insulation polyvinyl chloride shield Fireproof power cable is covered, so that the quality of cable is lighter and cost is lower, fire resistance and insulation performance are also to greatly promote.

Utility model content

Purpose of the utility model is to solve power cable cost height exists in the prior art and is laid with somewhat expensive The shortcomings that, and a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable proposed.

To achieve the goals above, the utility model adopts the technical scheme that

Design a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable, including aluminium alloy conductor, the aluminium Alloy conductor is four strands of aluminium alloy cables, and tangent mutually between the aluminium alloy conductor, the outside of the aluminium alloy conductor is equipped with Filled layer, the outside of the filled layer are coated with inner insulating layer, and the outside of the inner insulating layer is enclosed with steel belt layer, the steel band The outside of layer is coated with external insulation layer, and the outside of the external insulation layer is enclosed with flame retardant coating, and the outside of the flame retardant coating is enclosed with Restrictive coating.

Preferably, the aluminium alloy conductor is AA8030 series aluminium alloy material.

Preferably, the inner insulating layer is cross linked insulation pvc material, and with a thickness of 5-8mm, the external insulation layer is Cross linked insulation pvc material, with a thickness of 5-8mm, the restrictive coating is cross linked insulation pvc material, with a thickness of 6- 8mm。

Preferably, the flame retardant coating includes ceramic layer and magnesium oxide layer, and the outside of the external insulation layer is coated with ceramic layer, The outside of the ceramic layer is coated with magnesium oxide layer, and the outside of the magnesium oxide layer is coated with restrictive coating.

Preferably, several equally distributed heat release holes are offered on the side wall of the inner insulating layer.

The utility model proposes a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable, beneficial effect exists In:

1, the conductor part of the aluminium alloy cross linked insulation pvc sheath fireproof power cable is by using AA8030 Series aluminium alloy material reduces the cost using copper core, and quality is lighter, reduces laying cost.

2, in the utility model, the material of inner insulating layer, external insulation layer and restrictive coating is cross linked insulation polyvinyl chloride, cable It is inside equipped with three-layer insulated mechanism, so that the insulation performance of power cable greatly promotes, and cable inner clip is connected to flame retardant coating, so that The fire resistance of cable greatly improves, the setting of heat release hole, can accelerate to radiate, and the heat that conductor is generated is whole by steel belt layer It spreads out, it is practical, it is suitble to promote.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable section Structural schematic diagram；

Fig. 2 be the utility model proposes a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable fire resisting Layer the schematic diagram of the section structure；

Fig. 3 be the utility model proposes a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable in absolutely Edge layer planar structure schematic diagram.

In figure: 1 aluminium alloy conductor, 2 filled layers, 3 inner insulating layers, 4 steel belt layers, 5 external insulation layers, 6 flame retardant coatings, 7 restrictive coatings, 8 magnesium oxide layers, 9 ceramic layers, 10 heat release holes.

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.

Referring to Fig.1-3, a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable, including aluminium alloy conductor 1, Aluminium alloy conductor 1 is AA8030 series aluminium alloy material, and cost is low and light weight, and installation cost is cheap, aluminium alloy conductor 1 For four strands of aluminium alloy cables, and it is tangent mutually between aluminium alloy conductor 1, the outside of aluminium alloy conductor 1 is equipped with filled layer 2, filling Layer 2 condenses together four strands of aluminium alloy conductors 1, forms rock-steady structure, the outside of filled layer 2 is coated with inner insulating layer 3, interior exhausted Edge layer 3 is that cross linked insulation pvc material offers several equally distributed with a thickness of 5-8mm on the side wall of inner insulating layer 3 Heat release hole 10, the outside of inner insulating layer 3 are enclosed with steel belt layer 4, and the outside of steel belt layer 4 is coated with external insulation layer 5, external insulation layer 5 For cross linked insulation pvc material, with a thickness of 5-8mm, the outside of external insulation layer 5 is enclosed with flame retardant coating 6, the outside of flame retardant coating 6 It is enclosed with restrictive coating 7, restrictive coating 7 is cross linked insulation pvc material, and with a thickness of 6-8mm, aluminium alloy conductor 1 at work can A large amount of heat is generated, these heats can be spread on inner insulating layer 3 along filled layer 2, using the heat dissipation on inner insulating layer 3 Hole 10 is diffused into steel belt layer 4, and heat diffusion is gone out along steel belt layer 4, realizes heat dispersion, is not in due to hot-spot The phenomenon that fusing, and three-layer insulated mechanism is provided in cable, greatly improve the insulation performance of cable.

In the utility model, flame retardant coating 6 includes ceramic layer 9 and magnesium oxide layer 8, and the outside of external insulation layer 5 is coated with ceramics Layer 9, the outside of ceramic layer 9 is coated with magnesium oxide layer 8, and the outside of magnesium oxide layer 8 is coated with restrictive coating 7, by cable inner clip If flame retardant coating 6 can make the fire resistance of cable greatly promote, the cable failure occurred by fire problem is avoided, together When can also save the spending of the repairing after fire.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable, including aluminium alloy conductor (1), feature exists In the aluminium alloy conductor (1) is four strands of aluminium alloy cables, mutual tangent, the aluminium alloy between the aluminium alloy conductor (1) The outside of conductor (1) is equipped with filled layer (2), and the outside of the filled layer (2) is coated with inner insulating layer (3), the inner insulating layer (3) outside is enclosed with steel belt layer (4), and the outside of the steel belt layer (4) is coated with external insulation layer (5), the external insulation layer (5) Outside be enclosed with flame retardant coating (6), the outside of the flame retardant coating (6) is enclosed with restrictive coating (7).

2. a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable according to claim 1, feature exist In the aluminium alloy conductor (1) is AA8030 series aluminium alloy material.

3. a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable according to claim 1, feature exist In the inner insulating layer (3) is cross linked insulation pvc material, and with a thickness of 5-8mm, the external insulation layer (5) is that crosslinking is exhausted Edge pvc material, with a thickness of 5-8mm, the restrictive coating (7) is cross linked insulation pvc material, with a thickness of 6-8mm.

4. a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable according to claim 1, feature exist In the flame retardant coating (6) includes ceramic layer (9) and magnesium oxide layer (8), and the outside of the external insulation layer (5) is coated with ceramic layer (9), the outside of the ceramic layer (9) is coated with magnesium oxide layer (8), and the outside of the magnesium oxide layer (8) is coated with restrictive coating (7)。

5. a kind of aluminium alloy cross linked insulation pvc sheath fireproof power cable according to claim 1, feature exist In offering several equally distributed heat release holes (10) on the side wall of the inner insulating layer (3).