CN202003751U - Anti-termite power cable - Google Patents
Anti-termite power cable Download PDFInfo
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- CN202003751U CN202003751U CN2011200858245U CN201120085824U CN202003751U CN 202003751 U CN202003751 U CN 202003751U CN 2011200858245 U CN2011200858245 U CN 2011200858245U CN 201120085824 U CN201120085824 U CN 201120085824U CN 202003751 U CN202003751 U CN 202003751U
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- termite
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- power cable
- cable
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Abstract
The utility model discloses an anti-termite power cable which comprises three conductors, the three conductors are formed by twisting a plurality of soft tinning copper wires; the twisting pitch diameter ratio is 15-19 times; the three conductors are arranged into a shape like a Chinese character 'Pin'; the conductors are respectively externally wrapped by an insulating layer; the insulating layer of each of the conductors is wrapped with a belting layer; a filling layer is arranged between the belting layer and the insulating layer; the filling layer is woven into a reticular by wrapping a polypropylene tearing film belt; an isolation layer and an armour layer are sequentially wrapped outside the belting layer; the armour layer is formed by wrapping a double galvanized steel belt; and a jacket layer is wrapped outside the armour layer. In the utility model, cross-linked polyethylene is taken as the insulation material; the jacket layer adopts non-toxic harmless anti-termite cable material; with adoption of the cable, the hazard of the termite to the cable can be effectively prevented; the power cable has reliable and long property; therefore, other auxiliary control methods are not needed.
Description
Technical field:
The utility model relates to the power cable field, relates in particular to a kind of termite-proof power cable.
Background technology:
Termite is one of the world's five major pests.Bring huge harm and loss to the mankind their every year.For many years, global scientist is that this small worm has hindered brains saturating.The nest of termite spreads all over each corner except the frigid zone.Wherein, to cable harm maximum be coptotermes formosanus, formal name used at school Taiwan formosanes.According to relevant department's survey data introduction, China has found that the area of the underground plastic sheath communication cable of termite moth erosion has: province and Guangxi Zhuang Autonomous Region such as Guangdong, Fujian, Jiangxi, Zhejiang, Anhui, Sichuan, Hunan, Hubei, Yunnan, Hainan.The fault that China's southern area is caused by termite damage accounts for 60-70% of cable fault sum.As roughly estimated, annual because the direct and indirect economic loss that termite attack power cable and communications optical cable, cable cause of China reaches about 500,000,000 yuan.Termite like in the cable gateway and cable around nest, moth food cable outer layer plastic sheath causes electric leakage, short circuit, communication disruption, even can blast and cause fire.
High speed development along with electric power and telecommunications, the consumption of power cable and telecommunication cable, optical cable increases day by day, and direct-buried cable is most economical system of laying, therefore cable suffers the also corresponding increase of chance of termite attack, the anti-ant problem of cable is severe day by day, for the attention that more and more causes countries in the world of selecting for use of termite-proof cable.
The utility model content:
The purpose of this utility model provides a kind of termite-proof power cable, and the cable that has solved long-term puzzlement suffers the problem of termite attack.
Technical scheme of the present utility model is as follows:
Termite-proof power cable, comprise three conductors, it is characterized in that: described three conductors all have several zinc-plated soft copper skein silks to close to form, stranded lay ratio is 15-19 times, described three conductors are arranged in a triangle, described three conductors are enclosed with insulating barrier outward respectively, the insulating barrier outside of described three conductors is enclosed with belting layer, be provided with packed layer between described belting layer and the insulating barrier, described packed layer adopts polypropylene tearing film band to be woven into netted wrapped formation, the outside of described belting layer is enclosed with separator successively, armour, described armour adopt the wrapped formation of double-deck galvanized steel strip, and the described armour outside is enclosed with restrictive coating.
Described termite-proof power cable is characterized in that: described cross-sectional area of conductor is generally 4～300mm
2
Described termite-proof power cable is characterized in that: described insulating barrier adopts cross-linking polyethylene materials.
Described termite-proof power cable is characterized in that: described belting layer material adopts the wrapped formation of twining package tape of non-absorbent material.
Described termite-proof power cable is characterized in that: described restrictive coating material adopts nontoxic termite-proof protective cover material.
Described termite-proof power cable is characterized in that: described separator adopts talcum powder.
The utility model adopts following material:
(1) conductor
Conductor is the major part of cable, and resistivity is the key technical indexes of cable, and we select the conductor of copper as cable for use for this reason, conductor geometries is circular or fan-shaped, and meanwhile, we have taked to press structure to conductor, its advantage is: the conductor after overcompaction, surfacing.It is even to help Electric Field Distribution like this, strengthens the electric property of cable insulation, and reduces the external diameter of cable, reduces cost.Cross-sectional area of conductor is generally 4～300mm
2
(3) insulation
The crosslinked polyethylene (XLPE) of doing insulation adopts the crosslinked with silicane type to get final product, and does not need the dry cross-linking type.Organosilane crosslinked polyethylene can reach 90 ℃ than PVC temperature resistant grade height, and uses common screw rod to extrude, and the warm water environment is crosslinked, processes very convenient.Also used vapour is crosslinked, to enhance productivity.
(4) stranding, filling and cable core are wrapped
Cable stranding outermost layer direction of lay is a dextrad, and insulated wire cores should twist together.Band selects for use non-absorbent material to make twining package tape.
(5) sheath
Sheath adopts nontoxic termite-proof CABLE MATERIALS, has so both reduced environmental pollution, improves the termite-proof characteristic of cable again.
Advantage of the present utility model:
The utility model adopts crosslinked polyethylene to be insulation, and restrictive coating adopts nontoxic termite-proof CABLE MATERIALS, and this cable can effectively prevent the harm of termite to cable, and dependable performance is permanent, need not other assisting in preventing and treating methods.Cable has the favorable mechanical physical property, and higher resistance to wear and hardness are arranged, and experimental population method result of the test shows: have stronger termite-proof moth erosion performance.The unmatchful air of cable, soil, the person pollutes and the material that endangers, belongs to the environmental type product.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Termite-proof power cable, comprise three conductors 1, three conductors 1 all have several zinc-plated soft copper skein silks to close to form, stranded lay ratio is 15-19 times, three conductors 1 are arranged in a triangle, three conductor 1 outer insulating barriers 2 that are enclosed with respectively, insulating barrier 2 outsides of three conductors 1 are enclosed with belting layer 3, be provided with packed layer 4 between belting layer 3 and the insulating barrier 2, packed layer 4 adopts polypropylene tearing film band to be woven into netted wrapped formation, and the outside of belting layer 3 is enclosed with separator 5 successively, armour 6, armour 6 adopts the wrapped formation of double-deck galvanized steel strip, armour 6 outsides are enclosed with restrictive coating 7, and cross-sectional area of conductor is generally 4～300mm
2, insulating barrier 2 adopts cross-linking polyethylene materials, and belting layer 3 materials adopt the wrapped formation of twining package tape of non-absorbent material, and restrictive coating 7 materials adopt nontoxic termite-proof protective cover material, and separator 6 adopts talcum powder.
Claims (6)
1. termite-proof power cable, comprise three conductors, it is characterized in that: described three conductors all have several zinc-plated soft copper skein silks to close to form, stranded lay ratio is 15-19 times, described three conductors are arranged in a triangle, described three conductors are enclosed with insulating barrier outward respectively, the insulating barrier outside of described three conductors is enclosed with belting layer, be provided with packed layer between described belting layer and the insulating barrier, described packed layer adopts polypropylene tearing film band to be woven into netted wrapped formation, the outside of described belting layer is enclosed with separator successively, armour, described armour adopts the wrapped formation of double-deck galvanized steel strip, and the described armour outside is enclosed with restrictive coating.
2. termite-proof power cable according to claim 1 is characterized in that: described cross-sectional area of conductor is generally 4～300mm
2
3. termite-proof power cable according to claim 1 is characterized in that: described insulating barrier adopts cross-linking polyethylene materials.
4. termite-proof power cable according to claim 1 is characterized in that: described belting layer material adopts the wrapped formation of twining package tape of non-absorbent material.
5. termite-proof power cable according to claim 1 is characterized in that: described restrictive coating material adopts nontoxic termite-proof protective cover material.
6. termite-proof power cable according to claim 1 is characterized in that: described separator adopts talcum powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200858245U CN202003751U (en) | 2011-03-28 | 2011-03-28 | Anti-termite power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200858245U CN202003751U (en) | 2011-03-28 | 2011-03-28 | Anti-termite power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003751U true CN202003751U (en) | 2011-10-05 |
Family
ID=44706481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200858245U Expired - Fee Related CN202003751U (en) | 2011-03-28 | 2011-03-28 | Anti-termite power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869752A (en) * | 2016-05-27 | 2016-08-17 | 扬州市兄和预绞式金具厂 | Marine bulk-shielding instrument cable with oil resistance and paint aging resistance and manufacturing method of marine bulk-shielding instrument cable |
| CN105913915A (en) * | 2016-05-27 | 2016-08-31 | 扬州市兄和预绞式金具厂 | Marine high-strength, soft and coating aging-resistant power cable and manufacturing method thereof |
-
2011
- 2011-03-28 CN CN2011200858245U patent/CN202003751U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869752A (en) * | 2016-05-27 | 2016-08-17 | 扬州市兄和预绞式金具厂 | Marine bulk-shielding instrument cable with oil resistance and paint aging resistance and manufacturing method of marine bulk-shielding instrument cable |
| CN105913915A (en) * | 2016-05-27 | 2016-08-31 | 扬州市兄和预绞式金具厂 | Marine high-strength, soft and coating aging-resistant power cable and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Hongbo Cable Co., Ltd. Assignor: ANHUI DELI ELECTRIC HEATING CABLE CO., LTD. Contract record no.: 2012340000228 Denomination of utility model: Anti-termite power cable Granted publication date: 20111005 License type: Exclusive License Record date: 20120709 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20130328 |