CN201307447Y - Water-proof, bite-resistant and flame-retardant medium-voltage power cable for rail transit - Google Patents
Water-proof, bite-resistant and flame-retardant medium-voltage power cable for rail transit Download PDFInfo
- Publication number
- CN201307447Y CN201307447Y CNU2008202233805U CN200820223380U CN201307447Y CN 201307447 Y CN201307447 Y CN 201307447Y CN U2008202233805 U CNU2008202233805 U CN U2008202233805U CN 200820223380 U CN200820223380 U CN 200820223380U CN 201307447 Y CN201307447 Y CN 201307447Y
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- retardant
- power cable
- waterproof
- fire
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Abstract
The utility model relates to a water-proof, bite-resistant and flame-retardant medium-voltage power cable for rail transit, which is generally used in a rail-transit transmission and distribution system with the rated voltage of 6kV to 35kV. The power cable comprises a conductor, a conductor-shielding layer, an insulating layer, an insulating and shielding layer, a metal shielding layer, a fibre glass band, a water-proof oxygen-isolating layer and a mouse-and-ant-preventing sheath layer. The water-proofing effect of the water-proof oxygen-isolating layer is good, the mouse-and-ant-preventing sheath layer can prevent mice and ants from damaging the cable, and thereby, the safety, flame retardance and environment-friendliness of the cable are greatly improved.
Description
Technical field:
The utility model relates to the urban track traffic field of cables, definite a kind of urban track traffic medium-pressure power cable of saying so.
Background technology:
At present, the known urban track traffic medium-pressure power cable that is applicable to rated voltage at the track traffic electrical power trans mission/distribution system of 6～35kV comprises conductor and insulating barrier, and the conductor outside is an insulating barrier.This cable is as the problem of the urban track traffic medium-pressure power cable existence of track traffic electrical power trans mission/distribution system: one, waterproof and dampproof property is bad; Two, often bitten to sting and cause the accident by the mouse ant; Three, contain harmful substances such as fluorine, chlorine, nitrogen in the insulating layer material, do not meet environmental requirement; Four, fire resistance is poor in use.To sum up, the cable of public arena use such as existing traffic can not satisfy low smoke and zero halogen and prevent biting the performance requirement of environmental protection, has technical problems such as cable is safe in utilization.
The utility model content:
The utility model is intended to overcome in the existing urban track traffic medium-pressure power cable and exists waterproof and dampproof function poor, is often stung badly by the mouse ant, and fire resistance is poor, and the problem of not environmental protection provides that a kind of waterproof is anti-bites fire-retardant urban track traffic medium-pressure power cable.
For achieving the above object, the technical solution adopted in the utility model is as follows:
Waterproof prevents biting fire-retardant urban track traffic medium-pressure power cable, comprise conductor, conductor shield, insulating barrier, insulation screen, metal screen layer, glass fiber tape, it is characterized in that: outside glass fiber tape, extrude waterproof oxygen barrier layer and protection against rodents ant restrictive coating successively; Described waterproof oxygen barrier layer contains plastic-aluminum combined belt and polyolefin layer; Described protection against rodents ant restrictive coating comprises armour and low smoke halogen-free flame-retardant polyolefin outer jacket.
The plastic-aluminum combined belt of described waterproof oxygen barrier layer is interior, and polyolefin layer outside.
The polyolefin layer of described waterproof oxygen barrier layer is the low smoke halogen-free flame-retardant polyolefin layer.
The armour of described protection against rodents ant restrictive coating adopts bimetallic belt or circle metal wire layer armouring.
Advantage of the present utility model is:
One, the utility model adopts the waterproof oxygen barrier layer, and the waterproof oxygen barrier layer is set to plastic-aluminum combined belt and polyolefin layer is compound, and waterproof effect is better, and polyolefin layer adopts the low-smoke non-halogen flame-retardant material simultaneously, also has flame retardant effect;
Two, adopt protection against rodents ant restrictive coating, have and prevent that the plague of rats from damaging cable and causing the fire explosion that short circuit causes and prevent that termite stings the function of bad cable internal structure, guaranteed simultaneously the flame-retarding of cable again, when fire burns, can not discharge toxic gas as HCL and a large amount of smog, improve fail safe, anti-flammability and the feature of environmental protection of cable greatly.
Description of drawings:
Fig. 1 is the utility model structural representation
Shown in the figure 1, conductor 2, conductor shield 3, insulating barrier 4, insulation screen 5, metal screen layer 6, glass fiber tape 7, plastic-aluminum combined belt 8, polyolefin layer 9, armour 10, low-smoke halogen-free flame-retardant sheath
Embodiment:
The utility model proposes a kind of waterproof and prevent biting fire-retardant track traffic medium-pressure power cable.
Waterproof is anti-bites fire-retardant track traffic medium-pressure power cable, comprises conductor, conductor shield, insulating barrier, insulation screen, metal screen layer, glass fiber tape, waterproof oxygen barrier layer, protection against rodents ant restrictive coating; The waterproof oxygen barrier layer comprises plastic-aluminum combined belt and polyolefin layer; Protection against rodents ant restrictive coating comprises that armour and polyolefin protect outward.
The waterproof oxygen barrier layer adopts vertical bag layer of aluminum plastic composite strip on cable core, extrudes one deck low smoke halogen-free flame-retardant polyolefin layer again and forms, and this design makes the basic structure of cable that change take place, and this structure has waterproof and fire-retardant double action.Because the good seal performance of aluminum metal, and vertical easily wrap molding, tight by heat-sealing rifle heating back sealing, waterproof effect is better; The low smoke halogen-free flame-retardant polyolefin layer that extrudes simultaneously is waterproof but also guaranteed the flame-retarding of cable not only.
Protection against rodents ant restrictive coating adopts bimetallic belt or circle metal wire layer armouring, and external protective material adopts high rigidity (hardness is not less than Shao Shi 60 degree) the termite-proof low smoke halogen-free flame-retardant polyolefin layer of protection against rodents protective cover material.This layer structural design makes cable except the general characteristic and electrical property that keep common cable, also has to prevent that the plague of rats from damaging cable and causing the fire explosion that short circuit causes and prevent that termite stings the function of bad cable internal structure; Adopt the low-smoke low-halogen high flame retardant layer protective cover material that contains protection against rodents, termite-proof repellant simultaneously, strengthened the termite-proof function of protection against rodents, and the low-smoke low-halogen performance makes cable when fire burns, can not discharge toxic gas as HCL and a large amount of smog, improve applicability, anti-flammability and the feature of environmental protection of cable greatly.
Claims (4)
1, waterproof prevents biting fire-retardant urban track traffic medium-pressure power cable, comprise conductor, conductor shield, insulating barrier, insulation screen, metal screen layer, glass fiber tape, it is characterized in that: outside glass fiber tape, extrude waterproof oxygen barrier layer and protection against rodents ant restrictive coating successively; Described waterproof oxygen barrier layer contains plastic-aluminum combined belt and polyolefin layer; Described protection against rodents ant restrictive coating comprises armour and low smoke halogen-free flame-retardant polyolefin outer jacket.
2, waterproof according to claim 1 is anti-bites fire-retardant track traffic medium-pressure power cable, and it is characterized in that: the plastic-aluminum combined belt of described waterproof oxygen barrier layer is interior, and polyolefin layer outside.
3, waterproof according to claim 1 is anti-bites fire-retardant track traffic medium-pressure power cable, and it is characterized in that: the polyolefin layer of described waterproof oxygen barrier layer is the low smoke halogen-free flame-retardant polyolefin layer.
4, waterproof according to claim 1 is anti-bites fire-retardant track traffic medium-pressure power cable, it is characterized in that: the armour of described protection against rodents ant restrictive coating adopts bimetallic belt or circle metal wire layer armouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202233805U CN201307447Y (en) | 2008-12-12 | 2008-12-12 | Water-proof, bite-resistant and flame-retardant medium-voltage power cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202233805U CN201307447Y (en) | 2008-12-12 | 2008-12-12 | Water-proof, bite-resistant and flame-retardant medium-voltage power cable for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201307447Y true CN201307447Y (en) | 2009-09-09 |
Family
ID=41099914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202233805U Expired - Fee Related CN201307447Y (en) | 2008-12-12 | 2008-12-12 | Water-proof, bite-resistant and flame-retardant medium-voltage power cable for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201307447Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887783A (en) * | 2010-06-30 | 2010-11-17 | 安徽明星电缆有限公司 | Method for manufacturing cable for airport navigation light |
| WO2012088764A1 (en) * | 2010-12-31 | 2012-07-05 | 山东华能线缆有限公司 | Environmentally friendly mouse-proof and termite-proof electric cable with voltage equal to or below 35kv |
| CN103928142A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Damp-proof and anti-corrosion insulating cable for tunnels |
| CN104168676A (en) * | 2014-09-09 | 2014-11-26 | 芜湖市恒鑫电缆有限责任公司 | Damp-proof heating cable for bean sprout room |
-
2008
- 2008-12-12 CN CNU2008202233805U patent/CN201307447Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887783A (en) * | 2010-06-30 | 2010-11-17 | 安徽明星电缆有限公司 | Method for manufacturing cable for airport navigation light |
| WO2012088764A1 (en) * | 2010-12-31 | 2012-07-05 | 山东华能线缆有限公司 | Environmentally friendly mouse-proof and termite-proof electric cable with voltage equal to or below 35kv |
| CN103928142A (en) * | 2014-03-26 | 2014-07-16 | 安徽长风电缆集团有限公司 | Damp-proof and anti-corrosion insulating cable for tunnels |
| CN104168676A (en) * | 2014-09-09 | 2014-11-26 | 芜湖市恒鑫电缆有限责任公司 | Damp-proof heating cable for bean sprout room |
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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: 20090909 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |