CN213635454U - Flame-retardant power cable - Google Patents
Flame-retardant power cable Download PDFInfo
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- CN213635454U CN213635454U CN202022974773.3U CN202022974773U CN213635454U CN 213635454 U CN213635454 U CN 213635454U CN 202022974773 U CN202022974773 U CN 202022974773U CN 213635454 U CN213635454 U CN 213635454U
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 28
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000010410 layer Substances 0.000 claims abstract description 100
- 239000011241 protective layer Substances 0.000 claims abstract description 34
- 239000003814 drug Substances 0.000 claims abstract description 30
- 241000238631 Hexapoda Species 0.000 claims abstract description 21
- 241000257303 Hymenoptera Species 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 18
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 9
- 235000019253 formic acid Nutrition 0.000 description 9
- 239000004020 conductor Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
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- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 230000035929 gnawing Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 206010003399 Arthropod bite Diseases 0.000 description 1
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- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
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- 229920000573 polyethylene Polymers 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application relates to a flame-retardant power cable which comprises a plurality of groups of lead cores and a heat-resistant layer wrapped outside the lead cores; the wire core comprises a wire and an insulating sheath wrapped outside the wire; an outer protective layer wraps the heat-resistant layer, and a medicament layer used for killing insects and ants is arranged between the outer protective layer and the heat-resistant layer. This application has the moth that reduces the worm ant to the cable and erodees to improve the life's of cable advantage.
Description
Technical Field
The application relates to the technical field of power transmission, in particular to a flame-retardant power cable.
Background
At present, with the continuous development of society, the electricity demand of people is also continuously improved, and a cable is one of necessary facilities for realizing the transregional power transmission; the cable is generally formed by twisting a plurality of or a plurality of groups of wires, each group of wires are insulated with each other, a protective layer is wrapped on the outermost layer of the cable, and the cable has the characteristics of internal electrification and external insulation, so that electric power is transmitted from one place to another place; the protective layer wrapped by the outermost layer of the cable can enable the cable to be arranged in different environments, such as being erected in the air, buried in the ground and in water.
In the related art, in order to save space on the ground as much as possible and improve convenience of cable arrangement, and meanwhile, in order to protect the cable from being eroded by natural environments such as strong wind, sunshine, rain, snow and the like, the cable is often buried underground and protected by soil layers.
With respect to the above-described related art, the inventors consider that: although the soil layer can protect the cable, the insect ant is more in the soil layer, and the insect ant has the habit of gnawing the barrier, and when nesting or foraging of the insect ant receive the hindrance of cable, the insect ant may gnaw the cable, and the insect ant still can secrete formic acid when gnawing the cable, and formic acid can further corrode the cable, and when the insect ant bites the protective layer of cable, probably leads to the short circuit of cable to influence the normal work of cable.
SUMMERY OF THE UTILITY MODEL
In order to reduce the worm and ant to the worm-eating of cable to improve the life of cable, this application provides a fire-retardant power cable.
The application provides a fire-retardant power cable adopts following technical scheme:
a flame-retardant power cable comprises a plurality of groups of lead cores and a heat-resistant layer wrapped outside the lead cores; the wire core comprises a wire and an insulating sheath wrapped outside the wire; an outer protective layer wraps the heat-resistant layer, and a medicament layer used for killing insects and ants is arranged between the outer protective layer and the heat-resistant layer.
By adopting the technical scheme, when the cable is actually laid, the cable is buried underground, and the insulating layer can insulate the leads from each other; the heat-resistant layer can protect the cable, and the possibility of fire caused by over-high local temperature of the cable is reduced; when insects and ants bite the cable, the outer protective layer can protect the cable for the first step, when the insects and ants bite through the outer protective layer, the agents between the outer protective layer and the heat-resistant layer can repel or kill the insects and the ants, in addition, the outer protective layer can isolate the agents from the soil layer, and the pollution of the agents to the surrounding soil layer is reduced; through setting up outer jacket and medicament layer, reduce the worm and ant to the worm erosion of cable to improve the life of cable.
Optionally, be provided with the installation net between heat-resistant layer and the outer jacket, form the mounting groove between the net of installation net and the heat-resistant layer, the medicament layer is filled in the mounting groove.
Through adopting above-mentioned technical scheme, the mounting groove that forms between installation net and the heat-resistant layer can make more even distribution of medicament on whole cable, in addition, mutual independence between every mounting groove, only the medicament in the relevant position mounting groove plays a role after the outer jacket is bitten into to the insect, the medicament of other positions can not receive the influence to reduce medicament and leak or volatile possibility from the wound large tracts of land, reduce the pollution of medicament to surrounding soil layer, improve the life of medicament.
Optionally, an embedded groove adapted to the installation net is formed in the heat-resistant layer, and the installation net is embedded in the embedded groove.
By adopting the technical scheme, the stability of the installation net can be improved by the caulking groove, and the possibility of separation of the installation net is reduced.
Optionally, be provided with the fixed slot with the adaptation of installation net on the outer jacket, the installation net deviates from one side of caulking groove and inlays and locate in the fixed slot.
By adopting the technical scheme, under the common limitation of the caulking groove and the fixed net, the stability of the installation net is further improved, and the possibility of agglomeration and folding of the installation net due to cable bending is reduced, so that the medicament can be kept stable in the installation groove; meanwhile, when the cable is connected, the possibility that the installation net is separated from the interface is reduced, and the possibility that the medicine leaks from the interface is further reduced.
Optionally, an oxygen barrier layer made of low-smoke halogen-free flame-retardant ethylene is filled between the heat-resistant layer and the wire core.
Through adopting above-mentioned technical scheme, separate the oxygen layer on the one hand and can keep apart the wire core, further improve the insulating properties between the wire core, on the other hand separates the oxygen layer and has high temperature resistant fire-retardant characteristic, reduces the cable because local high temperature takes place the possibility on fire.
Optionally, a shielding layer made of a metal material is arranged between the oxygen isolation layer and the heat-resistant layer, and the shielding layer is wrapped outside the oxygen isolation layer.
By adopting the technical scheme, the shielding layer can shield the external magnetic field, thereby reducing the influence of the external magnetic field on the current in the wire.
Optionally, an alkali liquor soaked and dried protective layer is arranged between the shielding layer and the heat-resistant layer, and the protective layer is wrapped outside the shielding layer.
By adopting the technical scheme, after formic acid secreted by the insects and ants breaks through the medicament layer and the heat-resistant layer, alkaline substances on the protective layer can neutralize the formic acid, so that the corrosion of the formic acid to the shielding layer is reduced.
Optionally, a plurality of stripping grooves are formed in the insulating sheath along the length direction of the conductor core, and the distance between the notch of each stripping groove and the conductor is greater than the distance between the ground of each stripping groove and the conductor.
Through adopting above-mentioned technical scheme, when needs were worked a telephone switchboard to the cable, use finger or pliers to hold between fingers the insulating skin, then along the extending direction pulling insulating skin who peels off the groove, because the thickness of peeling off the tank bottom surface apart from the wire is thinner to peel off insulating skin along peeling off the groove, thereby improve the convenience of peeling off the insulating skin.
Optionally, a plurality of annular cutting grooves arranged along the length direction of the wire core are arranged on the insulating sheath.
Through adopting above-mentioned technical scheme, peel off insulating skin to grooving department after, the pulling insulating skin tears the insulating skin along the grooving to improve the planarization of insulating skin fracture department, reduce because excessively pull the possibility that the insulating skin leads to whole cable to damage.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the outer protective layer and the medicament layer, the damage of insects and ants to the cable is reduced, so that the service life of the cable is prolonged;
2. by arranging the mounting net, the medicaments are mutually independent, the possibility of large-area leakage or volatilization of the medicaments from the wound is reduced, and the service life of the medicaments is prolonged;
3. the convenience of stripping the insulating skin is improved by arranging the stripping groove;
4. by arranging the cutting groove, the possibility of damaging the whole cable due to excessive pulling of the insulating sheath is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a flame-retardant power cable in an embodiment of the present application.
Description of reference numerals: 1. a wire core; 10. a wire; 11. an insulating skin; 110. a stripping groove; 111. grooving; 2. a heat-resistant layer; 20. caulking grooves; 3. an oxygen barrier layer; 4. an outer jacket; 40. fixing grooves; 5. a drug layer; 6. installing a net; 60. mounting grooves; 7. a shielding layer; 8. and (4) a protective layer.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a flame-retardant power cable. Referring to fig. 1, the flame-retardant power cable includes a plurality of groups of wire cores 1, a heat-resistant layer 2 wrapped outside the plurality of groups of wire cores 1, an oxygen-barrier layer 3 filled between the wire cores 1 and the heat-resistant layer 2, an outer protective layer 4 wrapped outside the heat-resistant layer 2, and a chemical layer 5 disposed between the outer protective layer 4 and the heat-resistant layer 2 and used for repelling insects and ants.
Referring to fig. 1, a conductor core 1 includes a conductor 10 made of a metal material and an insulating sheath 11 wrapped outside the conductor 10, and the insulating sheath 11 may be made of polyvinyl chloride or cross-linked polyethylene, so as to improve the heat resistance and flame retardancy of the cable; the oxygen-isolating layer 3 can be made of low-smoke halogen-free flame-retardant polyethylene, so that the heat-resistant flame-retardant capability of the cable is further improved; in order to improve the stability of the medicament layer 5, the installation net 6 is arranged between the heat-resistant layer 2 and the outer protective layer, in order to reduce the influence of high temperature on the installation net 6, the installation net 6 is woven by metal wires, an installation groove 60 is formed between the grid of the installation net 6 and the heat-resistant layer 2, in order to improve the stability of the installation net 6, an embedded groove 20 is formed in the outer surface of the heat-resistant layer 2, the installation net 6 is embedded in the embedded groove 20, in order to further improve the stability of the installation net 6, a fixing groove 40 is formed in the outer protective layer 4, one side, away from the embedded groove 20, of the installation net 6 is embedded in the fixing groove 40, and the embedded groove 20 and the fixing groove 40 limit the installation net 6 together; the medicine is filled in the mounting groove 60 accordingly.
In order to reduce the influence of an external magnetic field on the current in the wire 10, a shielding layer 7 is arranged between the oxygen-isolating layer 3 and the heat-resistant layer 2, the shielding layer 7 is wrapped on the oxygen-isolating layer 3, the shielding layer 7 may be a metal mesh or an aluminum foil, and in this embodiment, the shielding layer 7 is a copper mesh woven by copper wires.
When the insect ants break through the medicament layer 5 and the heat-resistant layer 2, in order to reduce the corrosion of formic acid to the shielding layer 7, a protective layer 8 is arranged between the shielding layer 7 and the outer exhaling layer, the protective layer 8 wraps the shielding layer 7, an alkaline substance is arranged on the protective layer 8, and the specific protective layer 8 can be made of an alkali liquor to soak the flame-retardant sponge after drying.
In practical use, sometimes a cable needs to be connected, in the related art, generally, after the insulating sheath 11 is softened by heating with fire, the insulating sheath 11 is pulled out by using a pliers, or the insulating sheath 11 is directly torn off by using the pliers, so that the operation is inconvenient, and the lead 10 may be damaged, in order to improve the convenience of cable connection, a plurality of stripping grooves 110 are arranged on the insulating sheath 11 along the length direction of the lead core 1, and the distance between the notch of each stripping groove 110 and the lead 10 is greater than the distance between the ground of each stripping groove 110 and the lead 10; in order to further improve the convenience of cable connection, a plurality of annular slots 111 are formed in the insulating sheath 11 and arranged along the length of the conductor core 1.
The implementation principle of the flame-retardant power cable in the embodiment of the application is as follows: when the cable is actually laid, the cable is buried underground, when insects and ants bite the cable, the outer protective layer 4 can protect the cable in the first step, when the insects and ants bite the outer protective layer 4, the agent between the outer protective layer 4 and the heat-resistant layer 2 can repel or kill the insects and the ants, and the outer protective layer 4 can isolate the agent from the soil layer, so that the pollution of the agent to the surrounding soil layer is reduced; the installation grooves 60 formed between the installation net 6 and the heat-resistant layer 2 can enable the medicaments to be more uniformly and stably distributed on the whole cable, in addition, the installation grooves 60 are mutually independent, when insects and ants bite through the outer protection layer 4, only the medicaments in the installation grooves 60 at corresponding positions play a role, and the medicaments at other positions cannot be influenced, so that the possibility of large-area leakage or volatilization of the medicaments from wounds is reduced, and the service life of the medicaments is prolonged; the cooperating caulking grooves 20 and fixing grooves 40 may restrict the position of the mounting net 6, thereby reducing the possibility that the mounting net 6 may be separated from the cut-out during wiring.
The shielding layer 7 can shield an external magnetic field, so that the influence of the external magnetic field on the current in the lead 10 is reduced, and after formic acid secreted by the ants breaks through the medicament layer 5 and the heat-resistant layer 2, alkaline substances on the protective layer 8 can neutralize the formic acid, so that the corrosion of the formic acid on the shielding layer 7 is reduced; the heat-resistant layer 2 is made of polyvinyl chloride or cross-linked polyethylene materials, so that the flame-retardant heat-resistant performance of the cable is improved, the possibility of the cable being on fire due to local high temperature is reduced, the oxygen-isolating layer 3 is made of low-smoke halogen-free flame-retardant ethylene, the possibility of the cable being on fire can be further reduced, and the use safety of the cable is improved; when the cable needs to be connected, the insulating sheath 11 is pinched by fingers or pliers, then the insulating sheath 11 is pulled along the extending direction of the peeling groove 110, the bottom surface of the peeling groove 110 is thinner than the conductor 10, so that the insulating sheath 11 is peeled along the peeling groove 110, the convenience of peeling the insulating sheath 11 is improved, after the insulating sheath 11 is peeled to the cutting groove 111, the insulating sheath 11 is pulled to tear the insulating sheath 11 along the cutting groove 111, the smoothness of the fracture part of the insulating sheath 11 is improved, and the possibility of damaging the whole cable due to excessive pulling of the insulating sheath 11 is reduced. In conclusion, through the arrangement of the outer protective layer 4 and the medicament layer 5, the damage of insects and ants to the cable is reduced, and therefore the service life of the cable is prolonged.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A flame-retardant power cable is characterized in that: comprises a plurality of groups of wire cores (1) and a heat-resistant layer (2) wrapped outside the wire cores (1); the wire core (1) comprises a wire (10) and an insulating sheath (11) wrapped outside the wire (10); an outer protective layer (4) is wrapped outside the heat-resistant layer (2), and a medicament layer (5) used for carrying out insects and ants is arranged between the outer protective layer (4) and the heat-resistant layer (2).
2. A flame retardant power cable according to claim 1, characterized in that: be provided with between heat-resistant layer (2) and outer jacket (4) installation net (6), form mounting groove (60) between the net of installation net (6) and heat-resistant layer (2), medicament layer (5) are filled in mounting groove (60).
3. A flame retardant power cable according to claim 2, characterized in that: the heat-resistant layer (2) is provided with an embedded groove (20) matched with the installation net (6), and the installation net (6) is embedded in the embedded groove (20).
4. A flame retardant power cable according to claim 3, characterized in that: be provided with on outer jacket (4) with fixed slot (40) of installation net (6) adaptation, one side that installation net (6) deviate from caulking groove (20) is inlayed and is located in fixed slot (40).
5. A flame retardant power cable according to claim 1, characterized in that: an oxygen isolation layer (3) made of low-smoke halogen-free flame-retardant ethylene is filled between the heat-resistant layer (2) and the wire core (1).
6. A flame retardant power cable according to claim 5, characterized in that: a shielding layer (7) made of metal materials is arranged between the oxygen isolation layer (3) and the heat-resistant layer (2), and the shielding layer (7) is wrapped outside the oxygen isolation layer (3).
7. A flame retardant power cable according to claim 6, characterized in that: and a protective layer (8) which is soaked and dried by alkali liquor is arranged between the shielding layer (7) and the heat-resistant layer (2), and the protective layer (8) is wrapped outside the shielding layer (7).
8. A flame retardant power cable according to claim 1, characterized in that: a plurality of stripping grooves (110) are formed in the insulating sheath (11) along the length direction of the wire core (1), and the distance between the notch of each stripping groove (110) and the wire (10) is larger than the distance between the ground of each stripping groove (110) and the wire (10).
9. A flame retardant power cable according to claim 8, characterized in that: the insulating sheath (11) is provided with a plurality of annular cutting grooves (111) which are arranged along the length direction of the wire core (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022974773.3U CN213635454U (en) | 2020-12-09 | 2020-12-09 | Flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022974773.3U CN213635454U (en) | 2020-12-09 | 2020-12-09 | Flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213635454U true CN213635454U (en) | 2021-07-06 |
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ID=76638955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022974773.3U Expired - Fee Related CN213635454U (en) | 2020-12-09 | 2020-12-09 | Flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213635454U (en) |
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2020
- 2020-12-09 CN CN202022974773.3U patent/CN213635454U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210706 Termination date: 20211209 |