CN202694938U - Anti-termite tensile power cable - Google Patents
Anti-termite tensile power cable Download PDFInfo
- Publication number
- CN202694938U CN202694938U CN 201220219130 CN201220219130U CN202694938U CN 202694938 U CN202694938 U CN 202694938U CN 201220219130 CN201220219130 CN 201220219130 CN 201220219130 U CN201220219130 U CN 201220219130U CN 202694938 U CN202694938 U CN 202694938U
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- termite
- cable
- layer
- tensile
- power cable
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Abstract
The utility model discloses an anti-termite tensile power cable, which comprises three alloy conductors, wherein the three alloy conductors are formed by stranding a plurality of tinned soft copper wires, the diameter of the single wire is below 0.20 millimeter, and a stranding lay ratio is (12-21):1; insulation layers wrap outside the three alloy conductors respectively to form insulated wire cores; the insulated wire cores are arranged in a shape like a Chinese character 'pin' form a cable core; a wrapping layer wraps the cable core; a filling layer is arranged between the wrapping layer and the cable core and is wrapped by a polypropylene tearing film tape which is braided to form a meshed shape; an isolation layer which is formed by talc powder wraps the wrapping layer; tensile cores which are stranded oppositely and are arranged in a shape like a Chinese character 'pin' are arranged in the isolation layer; and an armor layer and a sheath layer are arranged outside the isolation layer sequentially. According to the anti-termite tensile power cable, the sheath layer is made of non-toxic and harmless anti-termite cable, so that the harm of termites to the cable can be prevented effectively. In addition, the tensile cores which are arranged in a shape like a Chinese character 'pin' are arranged in the isolation layer, so that the mechanical performance and information transfer capacity of the cable are improved.
Description
Technical field:
The utility model relates to the power cable field, relates in particular to a kind of tensile type Anti-termite 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, the formal name used at school Workers of Coptotermes formosanus Shiraki.
The fault that the south China 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 increasingly severe, for the attention that more and more causes countries in the world of selecting of anti-termite cable.
The utility model content:
For the prior art problem, the purpose of this utility model provides a kind of tensile type Anti-termite power cable, and the cable that has solved long-term puzzlement suffers termite attack and the weak problem of tensile strength.
Technical scheme of the present utility model is as follows:
The tensile type Anti-termite power cable, comprise three alloy conductors, it is characterized in that: described three alloy conductors close by several zinc-plated soft copper skein silks and form, filament diameter is below the 0.20mm, stranded lay ratio is 12-21 times, described three alloy conductors are enclosed with respectively insulating barrier outward and consist of insulated wire cores, insulated wire cores is arranged the formation cable core in a triangle, cable core is wrapped with lapping layer, be provided with packed layer between lapping layer and the cable core, packed layer adopts polypropylene tearing film band to be woven into netted wrapped formation, the outside of described lapping layer is enclosed with the separator that talcum powder forms successively, be provided with the tensile core of the pair twist of arranging in a triangle in the separator, separator is provided with armour outward successively, restrictive coating.
Described tensile type Anti-termite power cable is characterized in that: described three alloy conductor cross sections are generally 4～320mm
2
Described tensile type Anti-termite power cable is characterized in that: described lapping layer material adopts the wrapped formation of twining package tape of non-absorbent material.
Described tensile type Anti-termite power cable is characterized in that: described restrictive coating material adopts nontoxic termite-proof protective cover material.
Advantage of the present utility model:
The utility model restrictive coating adopts nontoxic anti-termite cable material, the effectively pre-termite-proof harm to cable of this cable, dependable performance is permanent, need not other assisting in preventing and treating methods, in addition, be provided with the tensile core of arranging in a triangle in separator, the mechanical performance that has improved cable has also improved information transfer capacity.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
Referring to Fig. 1:
The tensile type Anti-termite power cable, comprise three alloy conductors 1, three alloy conductors 1 close by several zinc-plated soft copper skein silks and form, filament diameter is below the 0.20mm, stranded lay ratio is 12-21 times, three alloy conductor 1 outer insulating barriers 2 that are enclosed with respectively consist of insulated wire cores, insulated wire cores is arranged the formation cable core in a triangle, cable core is wrapped with lapping layer 3, be provided with packed layer 4 between lapping layer 3 and the cable core, packed layer 4 adopts polypropylene tearing film band to be woven into netted wrapped formation, the outside of lapping layer 3 is enclosed with the separator 5 that talcum powder forms successively, be provided with the tensile core 6 of the pair twist of arranging in a triangle in the separator 5, the separator 5 outer armours 7 that are provided with successively, restrictive coating 8.
Three alloy conductor 1 cross sections are generally 4～320mm
2
Lapping layer 3 materials adopt the wrapped formation of twining package tape of non-absorbent material.
Claims (4)
1. tensile type Anti-termite power cable, comprise three alloy conductors, it is characterized in that: described three alloy conductors close by several zinc-plated soft copper skein silks and form, filament diameter is below the 0.20mm, stranded lay ratio is 12-21 times, described three alloy conductors are enclosed with respectively insulating barrier outward and consist of insulated wire cores, insulated wire cores is arranged the formation cable core in a triangle, cable core is wrapped with lapping layer, be provided with packed layer between lapping layer and the cable core, packed layer adopts polypropylene tearing film band to be woven into netted wrapped formation, the outside of described lapping layer is enclosed with the separator that talcum powder forms successively, be provided with the tensile core of the pair twist of arranging in a triangle in the separator, separator is provided with armour outward successively, restrictive coating.
2. tensile type Anti-termite power cable according to claim 1, it is characterized in that: described three alloy conductor cross sections are generally 4～320mm
2
3. tensile type Anti-termite power cable according to claim 1 is characterized in that: the wrapped formation of twining package tape of described lapping layer material employing non-absorbent material.
4. tensile type Anti-termite power cable according to claim 1, it is characterized in that: described restrictive coating material adopts nontoxic termite-proof protective cover material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219130 CN202694938U (en) | 2012-05-16 | 2012-05-16 | Anti-termite tensile power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219130 CN202694938U (en) | 2012-05-16 | 2012-05-16 | Anti-termite tensile power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694938U true CN202694938U (en) | 2013-01-23 |
Family
ID=47550520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219130 Expired - Fee Related CN202694938U (en) | 2012-05-16 | 2012-05-16 | Anti-termite tensile power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694938U (en) |
-
2012
- 2012-05-16 CN CN 201220219130 patent/CN202694938U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |