CN203250586U - Steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable - Google Patents
Steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable Download PDFInfo
- Publication number
- CN203250586U CN203250586U CN 201320085814 CN201320085814U CN203250586U CN 203250586 U CN203250586 U CN 203250586U CN 201320085814 CN201320085814 CN 201320085814 CN 201320085814 U CN201320085814 U CN 201320085814U CN 203250586 U CN203250586 U CN 203250586U
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- Prior art keywords
- polyurethane elastomer
- layer
- power cable
- flame retardant
- outside
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Abstract
The utility model discloses a steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable. The steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable comprises at least one metal conductor, an insulating layer is wrapped on the outside of each metal conductor, and a flame retardant polyurethane elastomer inner sheath is arranged on the outsides of the insulating layers; filling ropes and load-bearing ropes which are distributed at intervals, are arranged between the flame retardant polyurethane elastomer inner sheath and the insulating layers, and a steel strip armored layer is wrapped on the outside of the flame retardant polyurethane elastomer inner sheath, and is composed of trapezoidal wires and circular wires, which surround with each other at intervals; a waterproof non-woven fabric belt layer is arranged on the outside of the steel strip armored layer, a fireproof coating layer is arranged on the outside of the waterproof non-woven fabric belt layer, and a current carrying wire is arranged on the outside of the fireproof coating layer; a shielding layer is arranged on the outside of the current carrying wire, and a sheath layer is arranged on the outside of the shielding layer. The steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable of the utility model is large in insulating reliability and good in waterproof and fireproof performances, can be prevented from being damaged by animals and plants, and enables the wear resistant performance to be enhanced and the compression resistance degree to be improved at the same time, thereby prolonging the service life of the cable.
Description
Technical field
The utility model relates to a kind of cable, relates in particular to a kind of wire armoring flame resistance polyurethane elastomer sheathing and fixedly lays and use power cable.
Background technology
Development along with power industry, data communication industry, urban track traffic industry etc., all trades and professions are more and more higher to the requirement of cable, in use, will avoid not only that cable is mechanically damaged, insulation harm, ageing of insulation are rotten etc., also under hot conditions, use, namely high temperature resistant.The current capacity of cable is usually relevant with the sectional area of conductor thread core simultaneously, conductor temperature is raise, the temperature of the insulating barrier of conductor outer cladding surpasses the upper change that can cause on the insulating barrier generation performance in limited time, thereby the insulating reliability of insulating barrier is reduced greatly, affect the useful life of cable.
There is the problem that structural stability is poor, water resistance is poor in existing common cable, so the fire-retardant problem of the lsafety level of electric wiring and cable more and more causes people's concern; Even if cable has good heat resistance, in the higher occasion of fail safe, but can not prevent vegeto-animal destruction, also may bring large indirect loss to power supply.
The utility model content
The purpose of this utility model is in order to remedy the deficiency of prior art, to provide a kind of wire armoring flame resistance polyurethane elastomer sheathing fixedly to lay and used power cable.
The utility model is achieved through the following technical solutions:
A kind of wire armoring flame resistance polyurethane elastomer sheathing fixedly lays uses power cable, it is characterized in that: include at least one metallic conductor, described metallic conductor is coated with respectively insulating barrier outward, described insulating barrier is provided with the flame resistance polyurethane elastomer inner sheath outward, be provided with between described flame resistance polyurethane elastomer inner sheath and the insulating barrier and be filled with gasket for packing spaced apart and head-rope, described flame resistance polyurethane elastomer inner sheath is coated with the steel-tape armouring layer, described steel-tape armouring layer by the space around trapezoidal silk and circular wire form, described steel-tape armouring layer is provided with outward refuses water nonwoven fabrics belt, the described water nonwoven fabrics belt peripheral hardware of refusing has screen, and described screen is provided with restrictive coating outward.。
The cross section of described metallic conductor is circular or fan-shaped.
The external diameter of described insulating barrier is 1.2mm～1.6mm.
Described screen adopts two-layer plastic-aluminum combined film winding to form, the wrapped plastic-aluminum combined film of its internal layer, coverage rate 100%; The outer braid tinned wird, shielding density is more than 90%.
The utility model has the advantages that:
The utility model adopts the inside and outside insulating barrier of polyvinyl chloride, and under rated voltage 0.6/1kV condition of power supply, the insulating reliability of its double-deck polyvinyl chloride insulation layer is large; In the employing polyvinyl chloride, external sheath layer, the good flame retardation effect of its two-layer polyvinyl chloride external sheath layer, and then prolonged useful life of cable, simultaneously by by the space around trapezoidal silk and the structural design of the steel-tape armouring layer that forms of circular wire, not only can prevent vegeto-animal destruction and strengthen anti-wear performance, improve simultaneously the resistance to compression degree of cable, and then prolonged useful life of cable, by refusing the structural design of water nonwoven fabrics belt, its water resistance is good, its fire protecting performance is good, is used for indoor, the tunnel, in the cable trough or buried-pipe laying etc., can bear certain mechanical external force.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to accompanying drawing, a kind of wire armoring flame resistance polyurethane elastomer sheathing fixedly lays uses power cable, include at least one metallic conductor 1, the metallic conductor 1 outer insulating barrier 2 that is coated with respectively, the insulating barrier 2 outer flame resistance polyurethane elastomer inner sheaths 3 that are provided with, be provided with between flame resistance polyurethane elastomer inner sheath 3 and the insulating barrier 2 and be filled with gasket for packing spaced apart 4 and head-rope 5, flame-retardant polyurethane elastomer inner sheath 3 is coated with the steel-tape armouring layer, the steel-tape armouring layer by the space around trapezoidal silk 9 and circular wire 10 form, steel-tape armouring layer peripheral hardware is provided with refuses water nonwoven fabrics belt 6, refuse the water nonwoven fabrics belt 6 outer screens 7 that are provided with, the screen 7 outer restrictive coatings 8 that are provided with.
The cross section of metallic conductor 1 is circular or fan-shaped.The external diameter of insulating barrier 2 is 1.2mm～1.6mm.Screen adopts two-layer plastic-aluminum combined film winding to form, the wrapped plastic-aluminum combined film of its internal layer, coverage rate 100%; The outer braid tinned wird, shielding density is more than 90%.
Claims (4)
1. a wire armoring flame resistance polyurethane elastomer sheathing fixedly lays and uses power cable, it is characterized in that: include at least one metallic conductor, described metallic conductor is coated with respectively insulating barrier outward, described insulating barrier is provided with the flame resistance polyurethane elastomer inner sheath outward, be provided with between described flame resistance polyurethane elastomer inner sheath and the insulating barrier and be filled with gasket for packing spaced apart and head-rope, described flame resistance polyurethane elastomer inner sheath is coated with the steel-tape armouring layer, described steel-tape armouring layer by the space around trapezoidal silk and circular wire form, described steel-tape armouring layer is provided with outward refuses water nonwoven fabrics belt, the described water nonwoven fabrics belt peripheral hardware of refusing has screen, and described screen is provided with restrictive coating outward.
2. wire armoring flame resistance polyurethane elastomer sheathing according to claim 1 fixedly lays and uses power cable, it is characterized in that: the cross section of described metallic conductor is for circular or fan-shaped.
3. wire armoring flame resistance polyurethane elastomer sheathing according to claim 1 fixedly lays and uses power cable, it is characterized in that: the external diameter of described insulating barrier is 1.2mm～1.6mm.
4. wire armoring flame resistance polyurethane elastomer sheathing according to claim 1 fixedly lays and uses power cable, it is characterized in that: described screen adopts two-layer plastic-aluminum combined film winding to form, the wrapped plastic-aluminum combined film of its internal layer, coverage rate 100%; The outer braid tinned wird, shielding density is more than 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085814 CN203250586U (en) | 2013-02-26 | 2013-02-26 | Steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085814 CN203250586U (en) | 2013-02-26 | 2013-02-26 | Steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203250586U true CN203250586U (en) | 2013-10-23 |
Family
ID=49377012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320085814 Expired - Fee Related CN203250586U (en) | 2013-02-26 | 2013-02-26 | Steel wire armored flame retardant polyurethane elastomer sheath fixing and laying power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203250586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069317A (en) * | 2016-11-07 | 2018-05-25 | 奥的斯电梯公司 | For the supporting member with elastomer-phosphonate ester admixing type bonding agent of elevator device |
-
2013
- 2013-02-26 CN CN 201320085814 patent/CN203250586U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069317A (en) * | 2016-11-07 | 2018-05-25 | 奥的斯电梯公司 | For the supporting member with elastomer-phosphonate ester admixing type bonding agent of elevator device |
| US10974929B2 (en) | 2016-11-07 | 2021-04-13 | Otis Elevator Company | Load bearing member for an elevator system having an elastomer and phosphonate blended bonding agent |
| CN108069317B (en) * | 2016-11-07 | 2021-09-24 | 奥的斯电梯公司 | Load bearing member with elastomer-phosphonate blended binder for elevator systems |
| US11518652B2 (en) | 2016-11-07 | 2022-12-06 | Otis Elevator Company | Load bearing member for an elevator system having an elastomer and phosphonate blended bonding agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20140226 |