CN203134429U - Water and flame proof medium-voltage cable - Google Patents
Water and flame proof medium-voltage cable Download PDFInfo
- Publication number
- CN203134429U CN203134429U CN2013201382377U CN201320138237U CN203134429U CN 203134429 U CN203134429 U CN 203134429U CN 2013201382377 U CN2013201382377 U CN 2013201382377U CN 201320138237 U CN201320138237 U CN 201320138237U CN 203134429 U CN203134429 U CN 203134429U
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- China
- Prior art keywords
- layer
- cable
- water
- cable core
- voltage cable
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- 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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Abstract
The invention relates to a water and flame proof medium-voltage cable, which comprises multistrand cable cores at central part, a mica belting layer and a silicon rubber layer are provided outside each strand of cable core, an inorganic paper rope filler is provided between multistrand cable cores; and an ethylene propylene rubber insulating layer, a polymethylene undersheath layer, a steel wire gauze armour layer and a low smoke zero halogen over sheath are provided on the multistrand cable cores. compared with the prior art, the water and flame proof medium-voltage cable has the advantages of reasonable and simple structure, easy production, low cost, and obviously increased abrasive resistance, water resistance and fire resistance performances.
Description
Technical field
The present invention relates to the cable technology field and establish, particularly a kind of water proof fire retardant midium voltage cable.
Background technology
Along with China's rapid development of economy, cable all plays important role as the main media of modern communication in all trades and professions, so the barrier propterty of cable is more and more paid attention to.In the prior art, because cable arranges joining seam at a place of connecing, insulated conductor has opening, so general insulated aluminum wire does not block water.Cable water inlet meeting can have a significant impact the electrical property of cable, if cable conductor is intake then after can causing the water vapor that enters cable, caused serious accidents such as cable blast.The technical staff is sometimes at joint wrap insulate adhesive waterproof tape, but water still can therefrom infiltrate with steam or alternate manner, accumulate over a long period, rainwater core along the line always penetrates in the middle of the lead sag, because acid rain influence, with aluminium conductor generation chemical reaction, progressively sag is corroded, cause stress to concentrate and cause broken string.During fire, flame can spread along cable, also can produce a large amount of smog and poisonous corrosive gas simultaneously.Smog and poisonous gas often produce harm earlier to the people.The speed that spreads along cable in order to reduce flame combustion the time adds various flame-retardant additives, usually to make various types of fire proofings and flame retardant cable in cable material.
The utility model content
At the defective of prior art, the purpose of this utility model is to provide a kind of water proof fire retardant midium voltage cable, to solve existing cable waterproof, fire-retardant and defective that fire protecting performance is not good.
The utility model is to be achieved through the following technical solutions: comprise the Stranded cable core of central authorities, described per share cable core is provided with mica belting layer and silastic-layer outward, is provided with inorganic paper string filler between the Stranded cable core; Described Stranded cable core is provided with ethylene propylene rubber insulated layer, polyethylene inner restrictive coating, steel wire armour and low smoke and zero halogen external sheath layer outward successively.
Described cable core is four strands.
The thickness of described polyethylene inner restrictive coating is 3.5cm, and the thickness of low smoke and zero halogen external sheath layer is 5.5cm.
Than prior art, the utility model the utility model is rational in infrastructure simple, and the manufacturing is easy, cost is low, and its resistance to wear, water proofing property and anti-flammability improve greatly.
Description of drawings
Figure l is structural representation of the present utility model;
Among the figure: 1, cable core, 2, the mica belting layer, 3, the low smoke and zero halogen external sheath layer, 4, the steel wire armour, 5, inorganic paper string filler, 6, the polyethylene inner restrictive coating, 7, ethylene propylene rubber insulated layer, 8, silastic-layer.
Embodiment
With reference to figure 1, a kind of water proof fire retardant midium voltage cable comprises four strands of central cables core 1, is provided with mica belting layer 2 and silastic-layer 8 outside the per share cable core 1, is provided with inorganic paper string filler 5 between the Stranded cable core; The Stranded cable core is provided with ethylene propylene rubber insulated layer 7, polyethylene inner restrictive coating 6, steel wire armour 4 and low smoke and zero halogen external sheath layer 3 outward successively.
The utility model has improved the flame-retardant performance of cable by mica belting layer, silastic-layer and inorganic paper string filler (filler also can be torn material by asbestos, glass fiber or polypropylene); Preferential polythene PE-90 material that extrudes technology polar liquid that adopts of inner restrictive coating, preferred 3. 5mm of design thickness like this, greatly reduce the transmitance of steam.The steel wire armour can improve the ambient pressure holding capacity.External sheath layer is selected the low smoke and zero halogen external sheath layer for use, significantly reduce the corrosion to people's organ stimulating and equipment, thickness is 5.5 millimeters, has improved the anti-wear performance of cable like this, has reduced because cable jacket is subjected to point-like external force and planar external force to cause damaged caused various security incidents.
Claims (3)
1. a water proof fire retardant midium voltage cable comprises central Stranded cable core, and it is characterized in that: described per share cable core is provided with mica belting layer and silastic-layer outward, is provided with inorganic paper string filler between the Stranded cable core; Described Stranded cable core is provided with ethylene propylene rubber insulated layer, polyethylene inner restrictive coating, steel wire armour and low smoke and zero halogen external sheath layer outward successively.
2. water proof fire retardant midium voltage cable according to claim 1, it is characterized in that: described cable core is four strands.
3. water proof fire retardant midium voltage cable according to claim 1 and 2, it is characterized in that: the thickness of described polyethylene inner restrictive coating is 3.5cm, the thickness of low smoke and zero halogen external sheath layer is 5.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201382377U CN203134429U (en) | 2013-03-26 | 2013-03-26 | Water and flame proof medium-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201382377U CN203134429U (en) | 2013-03-26 | 2013-03-26 | Water and flame proof medium-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134429U true CN203134429U (en) | 2013-08-14 |
Family
ID=48942380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201382377U Expired - Fee Related CN203134429U (en) | 2013-03-26 | 2013-03-26 | Water and flame proof medium-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134429U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903724A (en) * | 2014-03-05 | 2014-07-02 | 安徽神州缆业集团有限公司 | Power control insulating shielding double-sheath cable |
| CN103903754A (en) * | 2014-03-05 | 2014-07-02 | 安徽神州缆业集团有限公司 | Insulating and shielding double-sheath cable resistant to acid and base |
-
2013
- 2013-03-26 CN CN2013201382377U patent/CN203134429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903724A (en) * | 2014-03-05 | 2014-07-02 | 安徽神州缆业集团有限公司 | Power control insulating shielding double-sheath cable |
| CN103903754A (en) * | 2014-03-05 | 2014-07-02 | 安徽神州缆业集团有限公司 | Insulating and shielding double-sheath cable resistant to acid and base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20170326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |