CN220252869U - Termite-proof power cable - Google Patents
Termite-proof power cable Download PDFInfo
- Publication number
- CN220252869U CN220252869U CN202321393872.XU CN202321393872U CN220252869U CN 220252869 U CN220252869 U CN 220252869U CN 202321393872 U CN202321393872 U CN 202321393872U CN 220252869 U CN220252869 U CN 220252869U
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- China
- Prior art keywords
- termite
- layer
- power cable
- outside
- outer sides
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- 239000010410 layer Substances 0.000 claims abstract description 62
- 239000004677 Nylon Substances 0.000 claims abstract description 19
- 229920001778 nylon Polymers 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 241000256602 Isoptera Species 0.000 claims description 13
- 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 claims description 8
- 239000004020 conductor Substances 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 11
- 230000035929 gnawing Effects 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 7
- 238000009413 insulation Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 240000005572 Syzygium cordatum Species 0.000 description 1
- 235000006650 Syzygium cordatum Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model relates to a termite-proof power cable, which comprises three cable cores, wherein the outer sides of the three cable cores are tangentially arranged to form a containing space, a water-blocking filling rope is filled in the containing space, the outer sides of the three cable cores are coated with wrapping layers, the outer sides of the wrapping layers are wrapped with semiconducting water-resistant bands, the outer sides of the semiconducting water-resistant bands are wrapped with inner protective layers in an extrusion mode, the outer sides of the inner protective layers are provided with biting-resistant layers, the outer sides of the biting-resistant layers are coated with nylon sheaths, the outer sides of the nylon sheaths are provided with steel tape armor layers, and the outer sides of the steel tape armor layers are wrapped with HDPE termite-proof outer sheaths in an extrusion mode. The utility model has the advantages of improving the biting resistance, prolonging the service life and having high structural strength.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a termite-proof power cable.
Background
The cable is used in the environments of industry, commerce, shipbuilding industry, high-rise buildings, mines, petroleum, chemical industry and the like. Termites can bite through the cable sheath and break through the metal coating layer, so that the cable is insulated and wet, the insulation resistance is reduced, single-phase grounding short circuit is caused, power transmission is interrupted, even fire and explosion are caused, and a permanent fault occurs to a cable circuit.
At present, termite-proof power cables are widely applied in many fields, but have poor biting resistance, have low service lives for a plurality of termites, require regular inspection by workers, and are repaired in time after a problem is found, so that a large amount of labor and cost are consumed, and the use requirements cannot be met.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the application is how to provide the termite-proof power cable which can improve the biting resistance, prolong the service life and has high structural strength.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the termite-proof power cable comprises three cable cores, wherein the outer sides of the three cable cores are tangent to form an accommodating space, water-blocking filling ropes are filled in the accommodating space, wrapping layers are wrapped on the outer sides of the three cable cores, semiconducting water-resistant bands are wrapped on the outer sides of the wrapping layers, inner protection layers are wrapped on the outer sides of the semiconducting water-resistant bands in an extrusion mode, a biting-resistant layer is arranged on the outer sides of the inner protection layers, nylon sheaths are wrapped on the outer sides of the biting-resistant layers, steel tape armor layers are arranged on the outer sides of the nylon sheaths, and HDPE termite-proof outer sheaths are wrapped on the outer sides of the steel tape armor layers in an extrusion mode.
Like this, fill in the accommodation space and have the filling rope that blocks water, can let power cable round, stable in structure, and have the effect of blocking water, be provided with around the covering in the outside, prevent that the cable is loose, be provided with the semiconductive water-resistant strip around the outside of covering, can play the effect of blocking water, the inner sheath is crowded in the outside of blocking the water strip, be convenient for install the resistant layer of gnawing in the outside of inner sheath, through the setting of gnawing resistant layer, can improve the resistant effect of gnawing, increase the overall structural strength of power cable simultaneously, the rethread nylon sheath consolidates the resistant layer of gnawing, make the installation of resistant layer of gnawing more stable, whole inseparabler, the outside of nylon sheath has the steel tape armor, further improve power cable's intensity, finally prevent termite oversheath through crowded HDPE, be unfavorable for termite to stings, improve termite-proof effect, increase life.
The insulation wire core comprises a copper conductor, an inner shielding layer, an insulation layer and an outer shielding layer are respectively extruded on the outer side of the copper conductor, and a copper strip shielding layer is wrapped on the outer side of the outer shielding layer.
Wherein, the wrapping layer is a halogen-free low-smoke flame-retardant glass ribbon.
Wherein the inner protective layer is a halogen-free low-smoke flame-retardant polyolefin sheath.
The inner protection layer is provided with a yielding notch corresponding to the reinforcing rib.
Wherein the nylon sheath is a nylon sheath immersed with termite-removing liquid medicine.
In conclusion, the utility model has the advantages of improving the biting resistance, prolonging the service life and having high structural strength. And has good water-blocking performance and convenient use.
Drawings
Fig. 1 is a schematic structural view of a termite-proof power cable according to the present utility model.
Fig. 2 is an enlarged schematic view of the cable core.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by the azimuth words such as "upper, lower" and "top, bottom", etc. are generally based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and these azimuth words do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
As shown in fig. 1-2, a termite-proof power cable comprises three cable cores 1, wherein the outer sides of the three cable cores 1 are tangentially arranged to form a containing space, a water-blocking filling rope 2 is filled in the containing space, wrapping layers 3 are wrapped on the outer sides of the three cable cores, semiconductive water-blocking bands 4 are wrapped on the outer sides of the wrapping layers, an inner protection layer 5 is wrapped on the outer sides of the semiconductive water-blocking bands in an extrusion mode, a biting-resistant layer is arranged on the outer sides of the inner protection layer, a nylon sheath 8 is wrapped on the outer sides of the biting-resistant layer, a steel-tape armor layer 9 is arranged on the outer sides of the nylon sheath, and an HDPE termite-proof outer sheath 10 is wrapped on the outer sides of the steel-tape armor layer in an extrusion mode.
Like this, fill in the accommodation space and have the filling rope that blocks water, can let power cable round, stable in structure, and have the effect of blocking water, be provided with around the covering in the outside, prevent that the cable is loose, be provided with the semiconductive water-resistant strip around the outside of covering, can play the effect of blocking water, the inner sheath is crowded in the outside of blocking the water strip, be convenient for install the resistant layer of gnawing in the outside of inner sheath, through the setting of gnawing resistant layer, can improve the resistant effect of gnawing, increase the overall structural strength of power cable simultaneously, the rethread nylon sheath consolidates the resistant layer of gnawing, make the installation of resistant layer of gnawing more stable, whole inseparabler, the outside of nylon sheath has the steel tape armor, further improve power cable's intensity, finally prevent termite oversheath through crowded HDPE, be unfavorable for termite to stings, improve termite-proof effect, increase life.
Specifically, the insulated wire core comprises a copper conductor 11, an inner shielding layer 12, an insulating layer 13 and an outer shielding layer 14 are respectively extruded on the outer side of the copper conductor, and a copper strip shielding layer 15 is wrapped on the outer side of the outer shielding layer.
The inner shielding layer is an extrusion crosslinking type semiconductive shielding layer, sulfur contained in the conductor shielding layer is not more than 200ppm and other impurity ions are not more than 20ppm, and the shielding effect of the conductor is greatly enhanced. The insulating layer is a water tree-resistant crosslinked polyethylene insulating layer, the thickness of the insulating layer is 4.85-5.5mm, and the water blocking effect is greatly higher than that of the common crosslinked polyethylene insulating layer. The outer shielding layer is an extrusion crosslinking type strippable semiconductive shielding layer, the sulfur content in the conductor shielding is not more than 1000ppm and other impurity ions are not more than 500ppm, and the insulating shielding effect is greatly enhanced. The thickness of the copper strip shielding layer is 0.09-0.1mm, and the covering rate is not less than 25%.
Specifically, the wrapping layer is a halogen-free low-smoke flame-retardant glass ribbon. Can play the roles of high temperature resistance, fire resistance and flame retardance, and improve the fire resistance and heat resistance of the power cable.
Specifically, the inner protective layer is a halogen-free low-smoke flame-retardant polyolefin sheath. The flame-retardant glass fiber is convenient to extrude, can be flame-retardant, generates less smoke during combustion, and is nontoxic.
Specifically, the bite-resistant layer comprises a plurality of reinforcing ribs 6 which are arranged along the circumference of the inner protective layer, copper sheets 7 are respectively fixed on two sides of the reinforcing ribs, adjacent copper sheets are overlapped, and the inner protective layer is provided with a yielding notch corresponding to the reinforcing ribs. The inner protective layer is molded through the extrusion die to form the yielding notch, so that the reinforcing ribs are convenient to install, and the overall structural strength of the power cable is improved. Adjacent copper sheets are overlapped and arranged, the copper sheets are elastic, are sequentially pressed with each other to form a stable circular ring structure, and when being heated or cooled, the copper sheets are displaced but still abutted against each other, so that the integrity is strong, termite biting can be born, and the service life of the power cable is prolonged. Meanwhile, the copper sheet also has a heat dissipation effect.
Specifically, the nylon sheath is a nylon sheath immersed in termite-removing liquid medicine. Can better play a role in preventing termites. Meanwhile, the nylon sheath can reduce abrasion between the copper sheet and the armor layer, and the service life is prolonged.
Finally, it should be noted that: various modifications and alterations of this utility model may be made by those skilled in the art without departing from the spirit and scope of this utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. The utility model provides a termite-proof power cable, its characterized in that includes three cable core (1), and the outside of three cable core is tangent to be set up in order to form the accommodation space, the accommodation space intussuseption is filled with and is blocked water filling rope (2), and the outside cladding of three cable core has around covering (3), around the outside of covering around the package has semi-conductive resistance hosepipe (4), the outside extrusion of semi-conductive resistance hosepipe has inner sheath (5), the outside of inner sheath is provided with and stings the layer, the outside cladding of stings the layer is provided with nylon sheath (8), the outside of nylon sheath is provided with steel tape armor (9), the outside extrusion HDPE termite-proof oversheath (10) of steel tape armor.
2. A termite-resistant power cable according to claim 1, characterized in that the cable core comprises a copper conductor (11), the outer side of which is respectively extrusion coated with an inner shielding layer (12), an insulating layer (13) and an outer shielding layer (14), the outer side of which is wrapped with a copper tape shielding layer (15).
3. The termite resistant power cable of claim 1 wherein the wrap is a halogen-free low smoke flame retardant glass ribbon.
4. The termite resistant power cable of claim 1 wherein the inner sheath is a halogen-free low smoke flame retardant polyolefin sheath.
5. The termite-proof power cable according to claim 1, wherein the biting-resistant layer comprises a plurality of reinforcing ribs (6) arranged along the circumference of the inner protective layer, copper sheets (7) are respectively fixed on two sides of the reinforcing ribs, adjacent copper sheets are overlapped, and the inner protective layer is provided with yielding notches corresponding to the reinforcing ribs.
6. The termite resistant power cable of claim 1 wherein the nylon sheath is a termite resistant liquid impregnated nylon sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321393872.XU CN220252869U (en) | 2023-06-02 | 2023-06-02 | Termite-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321393872.XU CN220252869U (en) | 2023-06-02 | 2023-06-02 | Termite-proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220252869U true CN220252869U (en) | 2023-12-26 |
Family
ID=89234220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321393872.XU Active CN220252869U (en) | 2023-06-02 | 2023-06-02 | Termite-proof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220252869U (en) |
-
2023
- 2023-06-02 CN CN202321393872.XU patent/CN220252869U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |