CN211319806U

CN211319806U - Dampproofing insulating cable of back-fire relief

Info

Publication number: CN211319806U
Application number: CN201922459643.3U
Authority: CN
Inventors: 管伟; 翟太育; 翟礼周
Original assignee: Wuxi Henglian Electronic Technology Co ltd
Current assignee: Wuxi Henglian Electronic Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-21
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a moisture-proof fire-retardant insulated cable, which belongs to the technical field of electric power cables, and comprises a plurality of conductor inner cores, a plurality of outer walls of the conductor inner cores are wrapped with coating layers, the outer walls of the coating layers are laminated with shielding layers, the outer walls of the shielding layers are laminated with moisture-proof layers, the outer walls of the moisture-proof layers are laminated with fire-retardant layers, the outer walls of the fire-retardant layers are sleeved with protective sleeves, the outer walls of the conductor inner cores are all wrapped with insulating sleeves, the outer walls of the protective sleeves are laminated with fire-retardant films, so that the moisture-proof and moisture-proof performance is good, the moisture entry is effectively prevented, the moisture-proof effect of the cable is improved, the fire-retardant layers are cross-linked polyethylene fire-retardant materials, the cable has better fire-retardant property, no haloid gas is discharged when the cable is burnt, the problem that the moisture, causing power accidents and having low safety.

Description

Dampproofing insulating cable of back-fire relief

Technical Field

The utility model relates to an electric power cable technical field, in particular to insulating cable of dampproofing back-fire relief.

Background

The wire and cable is used for transmitting electric (magnetic) energy, information and wire products for realizing electromagnetic energy conversion, the wire and cable in a broad sense is also called as cable for short, the cable in a narrow sense is insulated cable, and it can be defined as: the cable may also have additional conductors without insulation.

The existing power cable is poor in moisture-proof and fireproof effects, destructive insulation breakdown is caused after long-term use, power accidents are caused, and safety is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides an insulating cable of dampproofing back-fire relief aims at solving current dampproofing fire prevention effect of power cable not good, uses for a long time to lead to taking place destructive insulation and punctures, causes the electric power accident, problem that the security is not high.

The utility model discloses a realize like this, an insulating cable of dampproofing back-fire relief, including a plurality of conductor inner cores, it is a plurality of the outer wall parcel of conductor inner core has the coating, the outer wall laminating of coating has the shielding layer, the outer wall laminating of shielding layer has the dampproof course, the outer wall laminating of dampproof course has the back-fire relief, the sheath has been cup jointed to the outer wall of back-fire relief, the equal cladding of outer wall of a plurality of conductor inner cores has insulating cover, the outer wall laminating of sheath has fire-retardant membrane.

In order to guarantee the insulating properties of insulating cover, conduct the utility model discloses a dampproofing insulating cable of back-fire relief is preferred, the material of insulating cover is polypropylene.

In order to improve insulating nature, as the utility model discloses a dampproofing insulating cable of back-fire relief is preferred, the coating is polyethylene insulating material.

In order to even sinle silk surface electric field, conduct the utility model discloses a dampproofing insulating cable of back-fire relief is preferred, the shielding layer is tin-plated or bare copper braided material.

In order to improve dampproofing and waterproofing nature, as the utility model discloses a dampproofing insulating cable of back-fire relief is preferred, the dampproof course is the polyethylene foam cotton.

In order to prevent the cable burning, as the utility model discloses a dampproofing insulating cable of back-fire relief is preferred, the back-fire relief layer is crosslinked polyethylene flame retardant material.

In order to improve cable flame retardant ability, conduct the utility model discloses a dampproofing insulating cable of back-fire relief is preferred, fire-retardant membrane is for there being not steamed fire-retardant PC film.

Compared with the prior art, the beneficial effects of the utility model are that:

through setting up the dampproof course, the dampproof course is the polyethylene foaming cotton, the cotton inside a plurality of independent bubbles that have of polyethylene foaming, good dampproofing and waterproofing nature has, effectively prevent the entering of moisture, improve the cable dampproofing effect, the back-fire relief layer is cross-linked polyethylene flame retardant material, not only have better fire retardant property, and there is not haloid gas to emit when the cable burning, the smoke volume of cable is also little, the corrosive gas that the cable burning produced also the cable fire resistance and reduce between the haloid gas emergence volume, reduce the smoke volume, the fire-retardant membrane of sheath outer wall is for there being not steamed fire-retardant PC film, good fire resistance has, and thickness is little, green.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a schematic view of the insulating sleeve of the present invention;

in the figure: 1. a conductor inner core; 2. a coating layer; 3. a shielding layer; 4. a moisture barrier; 5. a fire barrier layer; 6. a sheath; 7. an insulating sleeve; 8. a flame retardant film.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an insulating cable of dampproofing back-fire relief, includes a plurality of conductor inner cores 1, and the outer wall parcel of a plurality of conductor inner cores 1 has coating 2, and the outer wall laminating of coating 2 has shielding layer 3, and the outer wall laminating of shielding layer 3 has dampproof course 4, and the outer wall laminating of dampproof course 4 has back-fire relief 5, and the sheath 6 has been cup jointed to the outer wall of back-fire relief 5, and the equal cladding of outer wall of a plurality of conductor inner cores 1 has insulating cover 7, and the outer wall laminating of sheath 6 has fire-retardant membrane 8.

In this embodiment: through setting up dampproof course 4, dampproof course 4 is the polyethylene foaming cotton, the cotton inside a plurality of independent bubbles that have of polyethylene foaming, good dampproofing and waterproofing nature has, effectively prevent the entering of moisture, improve the cable dampproofing effect, back-fire relief 5 is crosslinked polyethylene flame retardant material, not only have better fire retardant property, and there is not haloid gas to emit when the cable burning, the smoke volume of cable is also little, the corrosive gas that the cable burning produced also the cable fire resistance and reduce between the haloid gas emergence volume, reduce the smoke volume, the fire-retardant film 8 of 6 outer walls of sheath is halogen-free fire-retardant PC film, good fire resistance has, and thickness is little, green.

As a technical optimization scheme of the utility model, the material of insulating cover 7 is polypropylene.

In this embodiment: the insulating property of the polypropylene insulating sleeve 7 is good, and the insulating effect of the cable insulating sleeve 7 is improved.

As a technical optimization scheme of the utility model, the coating 2 is a polyethylene insulating material.

In this embodiment: the coating layer 2 is made of polyethylene insulating material, and the insulating effect is further improved.

As a technical optimization scheme of the utility model, shielding layer 3 is tin-plated or bare copper braided material.

In this embodiment: the shielding layer 3 is made of tin-plated or bare copper braided material and can be in good contact with insulation, the semi-conducting layer and the wire core have equal potentials, a gap exists between the semi-conducting layer and the wire core, and no electric field effect exists due to the equal potentials at the periphery, so that partial discharge is avoided.

As a technical optimization scheme of the utility model, the moisture-proof layer 4 is polyethylene foam cotton.

In this embodiment: dampproof course 4 is the polyethylene foam, and the cotton inside of polyethylene foam has a plurality of independent bubbles, has good dampproofing and waterproofing nature, effectively prevents the entering of moisture, improves the dampproofing effect of cable.

As a technical optimization scheme of the utility model, the fire barrier layer 5 is cross-linked polyethylene flame retardant material.

In this embodiment: fire barrier layer 5 is cross-linked polyethylene flame retardant material, not only has better fire-retardant characteristic, does not have haloid acid gas to emit when the cable burning moreover, and the smoke volume of cable is also little, and the corrosive gas that the cable burning produced also cable fire resistance and reduce between the haloid acid gas emergence volume, reduces the smoke volume.

As a technical optimization scheme of the utility model, fire-retardant membrane 8 is for there being not steamed fire-retardant PC film.

In this embodiment: the halogen-free flame-retardant PC film has good flame retardance, small thickness and environmental protection.

The working principle is as follows: the halogen-free flame-retardant PC film has good flame retardance, small thickness and environmental protection, the shielding layer 3 is a tinned or bare copper woven material and can be in good contact with insulation, the semi-conducting layer and the wire core have equal potentials, a gap exists between the semi-conducting layer and the wire core, no electric field effect exists due to the equal potentials at the periphery, partial discharge is avoided, the moisture-proof layer 4 is polyethylene foam cotton, a plurality of independent bubbles are arranged in the polyethylene foam cotton, the polyethylene foam cotton has good waterproof and moisture-proof properties, moisture is effectively prevented from entering, the cable moisture-proof effect is improved, the flame-retardant layer 5 is a cross-linked polyethylene flame-retardant material, the flame-retardant PC film has better flame-retardant characteristics, no haloid gas is emitted when the cable is burnt, the smoke generation amount of the cable is small, corrosive gas generated by the cable burning also has the flame retardance between the cable flame retardance and the haloid gas generation amount is reduced, the flame-, has good flame retardance, small thickness and environmental protection.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an insulating cable of dampproofing back-fire relief, includes a plurality of conductor inner cores (1), its characterized in that: a plurality of the outer wall parcel of conductor inner core (1) has coating (2), the outer wall laminating of coating (2) has shielding layer (3), the outer wall laminating of shielding layer (3) has dampproof course (4), the outer wall laminating of dampproof course (4) has back-fire relief layer (5), sheath (6) has been cup jointed to the outer wall of back-fire relief layer (5), the equal cladding of outer wall of a plurality of conductor inner cores (1) has insulating cover (7), the outer wall laminating of sheath (6) has fire-retardant membrane (8).

2. A moisture and fire resistant insulated cable as claimed in claim 1, wherein: the insulating sleeve (7) is made of polypropylene.

3. A moisture and fire resistant insulated cable as claimed in claim 1, wherein: the coating layer (2) is made of polyethylene insulating material.

4. A moisture and fire resistant insulated cable as claimed in claim 1, wherein: the shielding layer (3) is made of a tinning or bare copper braided material.

5. A moisture and fire resistant insulated cable as claimed in claim 1, wherein: the moisture-proof layer (4) is polyethylene foam cotton.

6. A moisture and fire resistant insulated cable as claimed in claim 1, wherein: the fire retardant layer (5) is made of cross-linked polyethylene flame retardant material.

7. A moisture and fire resistant insulated cable as claimed in claim 1, wherein: the flame-retardant film (8) is a halogen-free flame-retardant PC film.