CN218957444U

CN218957444U - Silicon rubber insulation fire-resistant power cable

Info

Publication number: CN218957444U
Application number: CN202223183914.5U
Authority: CN
Inventors: 何飞
Original assignee: Wuhan Jielupu Cable Co ltd
Current assignee: Wuhan Jielupu Cable Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-02
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a silicon rubber insulation fire-resistant power cable which comprises a cable core, wherein a shielding layer is fixedly sleeved on the surface of the cable core, and a protection layer is fixedly sleeved on the surface of the shielding layer. According to the utility model, the polypropylene layer, the natural rubber styrene layer and the butyl rubber layer are matched, so that the insulation performance of the power cable is improved, the electric shock effect is not easily caused when the power cable is contacted with water, the excellent insulation performance and good high-temperature and oil resistance are achieved, the flame retardance of the power cable is improved through the matching of the perlite layer, the ethylene propylene rubber layer and the polyvinyl chloride layer, the power cable has the advantages of strong environmental adaptability, weather resistance, light resistance, oxygen resistance and flame retardance, the thermal stability and fire resistance effect are enhanced when power failure or accident caused by fire disaster is avoided, the cable is not easy to burn due to direct contact of a fire source and the cable, and the service life is prolonged.

Description

Silicon rubber insulation fire-resistant power cable

Technical Field

The utility model relates to the technical field of power cables, in particular to a silicon rubber insulation fireproof power cable.

Background

The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river, and in the power lines, the proportion of the cable is gradually increasing.

The utility model patent of patent application publication number CN205318863U discloses a silicon rubber insulation fire-resistant power cable, which comprises a cable core, an insulation layer, a fire-resistant layer, a filling layer, an inner sheath layer, an armor layer, a waterproof coating and an outer sheath layer from inside to outside, wherein the section of the cable core is round, the insulation layer is a silicon rubber insulation layer, the fire-resistant layer is a fire-resistant fiber paper fire-resistant layer, and the filling layer is a low-smoke halogen-free fire-resistant rope filling layer.

However, the device still has some defects in actual use, namely, in the use process, the device has poor insulating property, is easy to contact with water, can cause an electric shock effect, and meanwhile, in the power supply process, because of power failure or frequent occurrence of accidents caused by fire, the device has poor heat stability and poor fire resistance effect, and when the fire occurs, a fire source is easy to burn in direct contact with a cable, so that the fire is spread, and the service life is low.

Therefore, it is necessary to invent a silicone rubber insulated fire-resistant power cable to solve the above problems.

Disclosure of Invention

The utility model aims to provide a silicon rubber insulation fire-resistant power cable which has the advantages of fire resistance and good insulation, and solves the problems of electric shock effect, poor thermal stability and poor fire resistance effect caused by easy contact with water.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a silicon rubber insulation fire-resistant power cable, includes the sinle silk, the fixed surface cover of sinle silk is equipped with the shielding layer, the fixed surface cover of shielding layer is equipped with the protective layer, the fixed surface cover of protective layer is equipped with the filling layer, the fixed surface cover of filling layer is equipped with the insulating layer, the fixed surface cover of insulating layer is equipped with the flame retardant coating, the fixed surface cover of flame retardant coating is equipped with the armor, the fixed surface cover of armor is equipped with the restrictive coating, the insulating layer includes the polypropylene layer, the fixed surface cover of polypropylene layer is equipped with natural rubber styrene layer, the fixed surface cover of natural rubber styrene layer is equipped with butyl rubber layer, the flame retardant coating includes the pearl stratum, the fixed surface cover of pearl stratum is equipped with the ethylene propylene rubber layer, the fixed surface cover of ethylene propylene rubber layer is equipped with the polyvinyl chloride layer.

Preferably, the surface of the filling layer is fixedly connected with the inner wall of the polypropylene layer, and the surface of the butyl rubber layer is fixedly connected with the inner wall of the perlite layer.

Preferably, the shielding layer is made of a cloud crosslinked semi-conductive shielding material, the protective layer is made of silicon rubber, the filling layer is made of a metal net, the armor layer is made of tinned copper wires, and the sheath layer is made of a rubber sheath.

Preferably, the polypropylene layer is made of polypropylene, the natural rubber styrene layer is made of natural rubber styrene, and the butyl rubber layer is made of butyl rubber.

Preferably, the perlite layer is made of perlite, the ethylene propylene rubber layer is made of ethylene propylene rubber, and the polyvinyl chloride layer is made of polyvinyl chloride.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model has the function of increasing the insulativity of the power cable by matching the polypropylene layer, the natural rubber styrene layer and the butyl rubber layer, so that the power cable is not easy to cause the electric shock effect when being contacted with water, and has excellent insulativity, good high temperature resistance and oil resistance.

2. The utility model has the function of improving the flame retardance of the power cable through the matching of the perlite layer, the ethylene propylene rubber layer and the polyvinyl chloride layer, so that the power cable has strong environmental adaptability, weather resistance, light resistance, oxygen resistance and good flame retardance, the heat stability and the flame-resistant effect are enhanced when power failure or accidents caused by fire disaster are avoided, the cable is not easy to burn due to direct contact of a fire source and the cable, and the service life is prolonged.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective cross-sectional view of a polypropylene layer and a natural rubber styrene layer of the present utility model;

FIG. 3 is a schematic perspective cross-sectional view of the perlite layer and ethylene propylene rubber layer of the utility model.

In the figure: 1 core, 2 shielding layer, 3 protective layer, 4 filling layer, 5 insulating layer, 6 flame retardant coating, 7 armor layer, 8 restrictive coating, 9 polypropylene layer, 10 natural rubber styrene layer, 11 butyl rubber layer, 12 perlite layer, 13 ethylene propylene rubber layer, 14 polyvinyl chloride layer.

Detailed Description

Referring to fig. 1-3, a silicon rubber insulation fire-resistant power cable comprises a cable core 1, wherein a shielding layer 2 is sleeved on the surface fixing sleeve of the cable core 1, a protective layer 3 is sleeved on the surface fixing sleeve of the shielding layer 2, a filling layer 4 is sleeved on the surface fixing sleeve of the protective layer 3, an insulation layer 5 is sleeved on the surface fixing sleeve of the filling layer 4, a fire-resistant layer 6 is sleeved on the surface fixing sleeve of the insulation layer 5, an armor layer 7 is sleeved on the surface fixing sleeve of the fire-resistant layer 6, a sheath layer 8 is sleeved on the surface fixing sleeve of the armor layer 7, the insulation layer 5 comprises a polypropylene layer 9, a natural rubber styrene layer 10 is sleeved on the surface fixing sleeve of the polypropylene layer 9, a butyl rubber layer 11 is sleeved on the surface fixing sleeve of the natural rubber styrene layer 10, the fire-resistant layer 6 comprises a pearl layer 12, an ethylene propylene rubber layer 13 is sleeved on the surface fixing sleeve of the pearl layer 12, a polyvinyl chloride layer 14 is sleeved on the surface fixing sleeve of the ethylene-propylene rubber layer 13, the power cable has excellent comprehensive performance, high strength, good insulativity, low water absorption, solvent resistance, high hardness and rigidity, excellent resistance, fatigue resistance and high impact resistance, the insulation, rigidity, wear resistance, impact resistance, ageing resistance and tear strength of the power cable are improved through the natural rubber styrene layer 10, the air tightness, ageing resistance, high heat resistance, organic solvent resistance and good electrical insulation are provided for the power cable through the butyl rubber layer 11, the power cable has fireproof heat insulation, incombustibility and fire resistance through the perlite layer 12, the power cable has excellent weather resistance, ozone resistance, heat resistance and electrical resistance through the ethylene propylene rubber layer 13, and the power cable has excellent flame retardance through the polyvinyl chloride layer 14, better mechanical property and excellent dielectric property, and has flame resistance, acid and alkali resistance, microorganism resistance and wear resistance.

The surface of the filling layer 4 is fixedly connected with the inner wall of the polypropylene layer 9, and the surface of the butyl rubber layer 11 is fixedly connected with the inner wall of the perlite layer 12.

The shielding layer 2 is made of a cloud crosslinked type semi-conductive shielding material, the protection layer 3 is made of silicon rubber, the filling layer 4 is made of a metal net, the armor layer 7 is made of tinned copper wires, and the sheath layer 8 is made of a rubber sheath.

The polypropylene layer 9 is made of polypropylene, the natural rubber styrene layer 10 is made of natural rubber styrene, and the butyl rubber layer 11 is made of butyl rubber.

The perlite layer 12 is made of perlite, the ethylene propylene rubber layer 13 is made of ethylene propylene rubber, and the polyvinyl chloride layer 14 is made of polyvinyl chloride.

The perlite can be made into perlite products, has the advantages of light apparent density, light weight, low heat conductivity coefficient, no corrosion, no combustion, no acid or alkali, no toxicity, no smell and the like, is a high-efficiency and ultra-light heat preservation and insulation material, and is widely applied to various industrial departments.

When the waterproof and flame-retardant protective coating is used, the protective coating 2 has electric insulation strength, corona resistance, heat resistance and good mechanics, the protective coating 3 has excellent electric insulation performance, the filling layer 4 can achieve the effects of pulling resistance, wear resistance and mouse bite resistance, the armor layer 7 mainly plays a role in mechanical protection, can bear tensile force, and the sheath layer 8 can play roles of water resistance, flame retardance and corrosion resistance.

To sum up: this fire-resistant power cable of silicone rubber insulation, through the cooperation of sinle silk 1, shielding layer 2, protective layer 3, filling layer 4, insulating layer 5, flame retardant coating 6, armor 7 and restrictive coating 8, solved easy and water contact, can lead to the effect of electric shock, the heat stability is relatively poor, problem that fire-resistant effect is not good.

Claims

1. The utility model provides a fire-resistant power cable of silicone rubber insulation, includes sinle silk (1), its characterized in that: the surface fixed cover of sinle silk (1) is equipped with shielding layer (2), the surface fixed cover of shielding layer (2) is equipped with protective layer (3), the surface fixed cover of protective layer (3) is equipped with filling layer (4), the surface fixed cover of filling layer (4) is equipped with insulating layer (5), the surface fixed cover of insulating layer (5) is equipped with flame retardant coating (6), the surface fixed cover of flame retardant coating (6) is equipped with armor (7), the surface fixed cover of armor (7) is equipped with restrictive coating (8), insulating layer (5) include polypropylene layer (9), the surface fixed cover of polypropylene layer (9) is equipped with natural rubber styrene layer (10), the surface fixed cover of natural rubber styrene layer (10) is equipped with butyl rubber layer (11), flame retardant coating (6) are including pearl stratum (12), the surface fixed cover of pearl stratum (12) is equipped with ethylene propylene rubber layer (13), the surface fixed cover of ethylene propylene rubber layer (13) is equipped with polyvinyl chloride layer (14).

2. A silicone rubber insulated fire resistant power cable according to claim 1, wherein: the surface of the filling layer (4) is fixedly connected with the inner wall of the polypropylene layer (9), and the surface of the butyl rubber layer (11) is fixedly connected with the inner wall of the perlite layer (12).

3. A silicone rubber insulated fire resistant power cable according to claim 1, wherein: the shielding layer (2) is made of a cloud crosslinked semi-conductive shielding material, the protective layer (3) is made of silicon rubber, the filling layer (4) is made of a metal net, the armor layer (7) is made of tinned copper wires, and the sheath layer (8) is made of a rubber sheath.

4. A silicone rubber insulated fire resistant power cable according to claim 1, wherein: the polypropylene layer (9) is made of polypropylene, the natural rubber styrene layer (10) is made of natural rubber styrene, and the butyl rubber layer (11) is made of butyl rubber.

5. A silicone rubber insulated fire resistant power cable according to claim 1, wherein: the perlite layer (12) is made of perlite, the ethylene propylene rubber layer (13) is made of ethylene propylene rubber, and the polyvinyl chloride layer (14) is made of polyvinyl chloride.