CN203250563U - 90-degree heatproof polyvinyl chloride insulated cable - Google Patents
90-degree heatproof polyvinyl chloride insulated cable Download PDFInfo
- Publication number
- CN203250563U CN203250563U CN2013200858013U CN201320085801U CN203250563U CN 203250563 U CN203250563 U CN 203250563U CN 2013200858013 U CN2013200858013 U CN 2013200858013U CN 201320085801 U CN201320085801 U CN 201320085801U CN 203250563 U CN203250563 U CN 203250563U
- Authority
- CN
- China
- Prior art keywords
- layer
- polyvinyl chloride
- outside
- outward
- heat resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a 90-degree heatproof polyvinyl chloride insulated cable. The 90-degree heatproof polyvinyl chloride insulated cable comprises at least one metal conductor, a polyvinyl chloride insulating layer is wrapped on the outside of each metal conductor, and a lapping layer is wrapped on the outsides of the polyvinyl chloride insulating layers. Filling ropes and load-bearing ropes, which are distributed at intervals, are filled between the lapping layer and the polyvinyl chloride insulating layers, an inner shielding layer is arranged on the outside of the lapping layer, a water-blocking non-woven fabric belt layer is arranged on the outside of the inner shielding layer, and a fireproof coating layer is arranged on the outside of the water-blocking non-woven fabric belt layer; a current-carrying conductor is arranged on the outside of the fireproof coating layer, an outer shielding layer is arranged on the outside of the current-carrying conductor, and a sheath layer is arranged on the outside of the outer shielding layer. The 90-degree heatproof polyvinyl chloride insulated cable of the utility mode is large in insulating reliability and good in flame retardant effect and waterproof and fireproof performances, enables the service life of the cable to be prolonged and the wear resistance and compressive property to be enhanced at the same time, and is used for the indoor, tunnel, cable trench or buried laying, etc.
Description
Technical field
The utility model relates to a kind of cable, relates in particular to a kind of 90 ° of heat resistant type polyvinyl chloride cables.
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 poor and easy firing of structural stability in existing common cable, fire protecting performance, the poor problem of water resistance, so the fire-retardant problem of the lsafety level of electric wiring and cable more and more causes people's concern.
The utility model content
The purpose of this utility model is in order to remedy the deficiency of prior art, a kind of 90 ° of heat resistant type polyvinyl chloride cables to be provided.
The utility model is achieved through the following technical solutions:
A kind of 90 ° of heat resistant type polyvinyl chloride cables, it is characterized in that: include at least one metallic conductor, described metallic conductor is coated with respectively the polyvinyl chloride insulation layer outward, described polyvinyl chloride insulation layer is coated with lapping layer, be provided with between described lapping layer and the polyvinyl chloride insulation layer and be filled with gasket for packing spaced apart and head-rope, described lapping layer is provided with internal shield outward, described internal shield is provided with outward refuses water nonwoven fabrics belt, the described water nonwoven fabrics belt peripheral hardware of refusing has the fireproof paint layer, described fireproof paint layer is provided with current-carrying conductor outward, described current-carrying conductor is provided with outer shielding layer outward, and described outer shielding layer is provided with restrictive coating outward.
The cross section of described metallic conductor is circular or fan-shaped.
The external diameter of described polyvinyl chloride inner insulating layer is 1.4mm～1.8mm.
Described inside and outside 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 95%.
Described current-carrying conductor adopts the tinned wird braiding two-layer.
Described restrictive coating adopts tear-proof silicon rubber to make its external diameter 5.7mm～6.0mm.
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; Adopt the flame resistance polyurethane elastomer sheathing layer, its good flame retardation effect, and then prolonged useful life of cable, by gasket for packing and the rope of weighing inner core is fixed simultaneously, strengthen its wear-resisting and compressive property, by the structural design of fireproof paint layer, its fire protecting performance is good, increase its water resistance by refusing water nonwoven fabrics belt, be used in indoor, tunnel, the cable trough or buried-pipe laying etc.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to accompanying drawing, a kind of 90 ° of heat resistant type polyvinyl chloride cables, include at least one metallic conductor 1, the metallic conductor 1 outer polyvinyl chloride insulation layer 2 that is coated with respectively, polyvinyl chloride insulation layer 2 is coated with lapping layer 3, be provided with between lapping layer 3 and the polyvinyl chloride insulation layer 2 and be filled with gasket for packing spaced apart 4 and head-rope 5, the lapping layer 3 outer internal shields 6 that are provided with, internal shield 6 outer being provided with are refused water nonwoven fabrics belt 7, refuse the water nonwoven fabrics belt 7 outer fireproof paint layers 8 that are provided with, the fireproof paint layer 8 outer current-carrying conductor 9 that is provided with, the current-carrying conductor 9 outer outer shielding layers 10 that are provided with, the outer shielding layer 10 outer restrictive coatings 11 that are provided with.
The cross section of metallic conductor 1 is circular or fan-shaped.The external diameter of polyvinyl chloride inner insulating layer is 1.4mm～1.8mm.Inside and outside screen 10 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 95%.Current-carrying conductor 9 adopts the tinned wird braiding two-layer.Restrictive coating 11 adopts tear-proof silicon rubber to make its external diameter 5.7mm～6.0mm.
Claims (6)
1. 90 ° of heat resistant type polyvinyl chloride cables, it is characterized in that: include at least one metallic conductor, described metallic conductor is coated with respectively the polyvinyl chloride insulation layer outward, described polyvinyl chloride insulation layer is coated with lapping layer, be provided with between described lapping layer and the polyvinyl chloride insulation layer and be filled with gasket for packing spaced apart and head-rope, described lapping layer is provided with internal shield outward, described internal shield is provided with outward refuses water nonwoven fabrics belt, the described water nonwoven fabrics belt peripheral hardware of refusing has the fireproof paint layer, described fireproof paint layer is provided with current-carrying conductor outward, described current-carrying conductor is provided with outer shielding layer outward, and described outer shielding layer is provided with restrictive coating outward.
2. 90 ° of heat resistant type polyvinyl chloride cables according to claim 1 is characterized in that: the cross section of described metallic conductor is for circular or fan-shaped.
3. 90 ° of heat resistant type polyvinyl chloride cables according to claim 1, it is characterized in that: the external diameter of described polyvinyl chloride inner insulating layer is 1.4mm～1.8mm.
4. 90 ° of heat resistant type polyvinyl chloride cables according to claim 1, it is characterized in that: described inside and outside 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 95%.
5. 90 ° of heat resistant type polyvinyl chloride cables according to claim 1 is characterized in that: described current-carrying conductor adopts the tinned wird braiding two-layer.
6. 90 ° of heat resistant type polyvinyl chloride cables according to claim 1 is characterized in that: described restrictive coating adopts tear-proof silicon rubber to make its external diameter 5.7mm～6.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200858013U CN203250563U (en) | 2013-02-26 | 2013-02-26 | 90-degree heatproof polyvinyl chloride insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200858013U CN203250563U (en) | 2013-02-26 | 2013-02-26 | 90-degree heatproof polyvinyl chloride insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203250563U true CN203250563U (en) | 2013-10-23 |
Family
ID=49376989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200858013U Expired - Fee Related CN203250563U (en) | 2013-02-26 | 2013-02-26 | 90-degree heatproof polyvinyl chloride insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203250563U (en) |
-
2013
- 2013-02-26 CN CN2013200858013U patent/CN203250563U/en not_active Expired - Fee Related
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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 |