CN207572129U - A kind of environmental protection flame retardant PE cable - Google Patents
A kind of environmental protection flame retardant PE cable Download PDFInfo
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- CN207572129U CN207572129U CN201721853550.3U CN201721853550U CN207572129U CN 207572129 U CN207572129 U CN 207572129U CN 201721853550 U CN201721853550 U CN 201721853550U CN 207572129 U CN207572129 U CN 207572129U
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- flame
- retardant
- polyethylene film
- proof
- cable
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Abstract
The utility model is related to a kind of cables, especially a kind of environmental protection flame retardant PE cable, it includes several belt leather conducting wires, flame-proof polyethylene film, flame-retardant strip band and crosslinked polyethylene sheath, the belt leather conducting wire is wound after assembling beam using flame-proof polyethylene film, the flame-proof polyethylene film periphery is arranged crosslinked polyethylene sheath, two flame-retardant strip bands are additionally provided between the flame-proof polyethylene film and crosslinked polyethylene sheath, the backing fitting crosslinked polyethylene jacket inner wall of the flame-retardant strip band, the pressure sensitive adhesive layer fitting flame-proof polyethylene film of the flame-retardant strip band；Belt leather conducting wire is wrapped up using flame-proof polyethylene film, will not dissolve each other between flame-proof polyethylene and crosslinked polyethylene sheath, service life can be improved；The flame-proof polyethylene film being wrapped in outside belt leather conducting wire is fastened by the flame-retardant strip band with pressure sensitive adhesive layer, will not be loose, can improve the flame retardant effect after sheath Local Cracking.
Description
Technical field
The utility model is related to a kind of cable, especially a kind of environmental protection flame retardant PE cable.
Background technology
PE cable, that is, low-voltage crosslinked (XLPE) cable, since middle nineteen nineties input application, development is fast
Speed respectively accounts for market half share with polyvinyl chloride (PVC) cable at present.Crosslinked cable carries compared with polyvinyl chloride cable
Flow is higher, and overload capacity is stronger, and service life is longer, and (thermal life is generally 20 years when PVC wireline environments are preferable, and XLPE is electric
The cable thermal life is generally 40 years)；PVC can decompose a large amount of black smokes of release and toxic gas when burning, and will not be produced during XLPE burnings
Raw halogen toxic gas, the superiority of crosslinked cable are increasingly recognized by design and use department.
The crosslinked polyethylene shield sleeve flame performance of existing PE cable is fine, once but sheath it is local melting or
After cracking and the appurtenances such as internal belt leather conducting wire and insulating layer, waterproof layer will become fuel at once, therefore part polyethylene
Cable can reach flame retardant effect using modes such as armourings.
Invention content
In view of the deficiencies of the prior art, the utility model provides belt leather conducting wire after one kind prevents sheath Local Cracking and sends out rapidly
The PE cable of raw burning is posted and wishes that this technical solution can reduce the circuit damage in small-sized fire and prevent between building
It is overdoed by cable.
The technical solution of the utility model is：
A kind of environmental protection flame retardant PE cable, it is characterised in that：It includes several belt leather conducting wires, flame-proof polyethylene film, resistance
Band and crosslinked polyethylene sheath are fired, the belt leather conducting wire is wound after assembling beam using flame-proof polyethylene film, described fire-retardant
Polyethylene film periphery is arranged crosslinked polyethylene sheath, and two are additionally provided between the flame-proof polyethylene film and crosslinked polyethylene sheath
Flame-retardant strip band, the backing fitting crosslinked polyethylene jacket inner wall of the flame-retardant strip band, the pressure sensitive adhesive layer of the flame-retardant strip band
It is bonded flame-proof polyethylene film.
Further, the width of the flame-proof polyethylene film is 2-10 centimetres, and the flame-proof polyethylene film is twined using inclination
Around mode wrap up the bundles of belt leather conducting wire of set.
Further, the flame-retardant strip band is symmetrical arranged.
Further, the cable further includes conductor water blocking layer, conductor shield, insulating layer, insulation screen, split-phase gold
Belong to shielded layer, cable core water blocking layer, system packet metal screen layer, watertight insulation.In fact, above-mentioned each appurtenances are not must
Need part, user can select suitable accessory according to actual demand, to be optimal configuration.
The operation principle of the utility model：
Flame-proof polyethylene film uses flame-proof polyethylene film disclosed in Chinese patent, and the patent No. 201410553406.2 has
Good flame retardant effect.
Flame-retardant strip band uses flame-retardant strip band disclosed in Chinese patent, the patent No. 201280014489.7, and the band includes
Backing and pressure sensitive adhesive layer.The pressure sensitive adhesive layer includes (methyl) acrylate group block copolymer, and can be with
Include at least halogen-free flame-retardant of 10 weight %.
When sheath Local Cracking, if sheath is replaced to protect cable for the flame-retardant strip band back side, flame-retardant strip band at cracking,
If the position at cracking between flame-retardant strip band, the flame-proof polyethylene film being wrapped on belt leather conducting wire protects belt leather conducting wire,
If at cracking be cable end, due to flame-retardant strip band can not stress and open so that the resistance being wrapped on belt leather conducting wire
Fire the end that the stretching, extension of polyethylene film spiral blocks cable so that flare is difficult to after afterglow belt leather conducting wire, even if belt leather conducting wire exists
Internal short-circuit is also because be difficult to be passed through oxygen and be difficult to burn.
The beneficial effects of the utility model are：Belt leather conducting wire, flame-proof polyethylene and crosslinking are wrapped up using flame-proof polyethylene film
It will not dissolve each other between pe sheath, service life can be improved；The flame-proof polyethylene film being wrapped in outside belt leather conducting wire is had
The flame-retardant strip band for having pressure sensitive adhesive layer fastens, will not be loose, can improve the flame retardant effect after sheath Local Cracking.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the canoe schematic diagram of the flame-proof polyethylene film of the utility model.
In figure, 1, belt leather conducting wire；2nd, flame-proof polyethylene film；3rd, flame-retardant strip band；4th, crosslinked polyethylene sheath.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figure 1, 2, a kind of environmental protection flame retardant PE cable, it include several belt leather conducting wires 1, flame-proof polyethylene film 2,
Flame-retardant strip band 3 and crosslinked polyethylene sheath 4, the belt leather conducting wire 1 are wound after gathering bunchy using flame-proof polyethylene film 2, institute
It states 2 periphery of flame-proof polyethylene film and is arranged crosslinked polyethylene sheath 4, between the flame-proof polyethylene film 2 and crosslinked polyethylene sheath 4
It is additionally provided with two flame-retardant strip bands 3,4 inner wall of backing fitting crosslinked polyethylene sheath of the flame-retardant strip band 3, the flame-retardant strip band 3
Pressure sensitive adhesive layer fitting flame-proof polyethylene film 2.
The width of the flame-proof polyethylene film 2 is 2-10 centimetres, and the flame-proof polyethylene film 2 is by the way of winding is tilted
Package gathers bundles of belt leather conducting wire 1.
The flame-retardant strip band 3 is symmetrical arranged.
Embodiment 2
The cable further include conductor water blocking layer, conductor shield, insulating layer, insulation screen, split-phase metal screen layer,
Cable core water blocking layer, system packet metal screen layer, watertight insulation.
The description of the embodiments and the specification only illustrate the principle of the present utility model and most preferred embodiment, is not taking off
Under the premise of from the spirit and scope of the utility model, the present invention also has various changes and improvements, these changes and improvements
It both falls in claimed the scope of the utility model.
Claims (4)
1. a kind of environmental protection flame retardant PE cable, it is characterised in that：It includes several belt leather conducting wires, flame-proof polyethylene film, fire-retardant
Band and crosslinked polyethylene sheath, the belt leather conducting wire are wound after assembling beam using flame-proof polyethylene film, described fire-retardant poly-
Vinyl film periphery is arranged crosslinked polyethylene sheath, and two resistances are additionally provided between the flame-proof polyethylene film and crosslinked polyethylene sheath
Fire band, the backing fitting crosslinked polyethylene jacket inner wall of the flame-retardant strip band, the pressure sensitive adhesive layer patch of the flame-retardant strip band
Close flame-proof polyethylene film.
2. environmental protection flame retardant PE cable according to claim 1, it is characterised in that：The width of the flame-proof polyethylene film
It it is 2-10 centimetres, the flame-proof polyethylene film wraps up the bundles of belt leather conducting wire of set by the way of winding is tilted.
3. environmental protection flame retardant PE cable according to claim 2, it is characterised in that：The flame-retardant strip band is symmetrical arranged.
4. environmental protection flame retardant PE cable according to claim 3, it is characterised in that：The cable further includes conductor and blocks water
Layer, conductor shield, insulating layer, insulation screen, split-phase metal screen layer, cable core water blocking layer, system packet metal screen layer, waterproof
Separation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853550.3U CN207572129U (en) | 2017-12-27 | 2017-12-27 | A kind of environmental protection flame retardant PE cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853550.3U CN207572129U (en) | 2017-12-27 | 2017-12-27 | A kind of environmental protection flame retardant PE cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572129U true CN207572129U (en) | 2018-07-03 |
Family
ID=62685387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721853550.3U Active CN207572129U (en) | 2017-12-27 | 2017-12-27 | A kind of environmental protection flame retardant PE cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572129U (en) |
-
2017
- 2017-12-27 CN CN201721853550.3U patent/CN207572129U/en active Active
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