CN213339759U - Halogen-free low-smoke flame-retardant rat-proof termite-proof power cable - Google Patents
Halogen-free low-smoke flame-retardant rat-proof termite-proof power cable Download PDFInfo
- Publication number
- CN213339759U CN213339759U CN202022397251.1U CN202022397251U CN213339759U CN 213339759 U CN213339759 U CN 213339759U CN 202022397251 U CN202022397251 U CN 202022397251U CN 213339759 U CN213339759 U CN 213339759U
- Authority
- CN
- China
- Prior art keywords
- proof
- layer
- termite
- rat
- halogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model provides a there is not steamed low fire-retardant protection against rodents termite power cable of cigarette, including insulating core group and from inside to outside in proper order cladding in insulating core group outside around covering, interior sheath, armor and protection against rodents termite oversheath layer, insulating core group is including the circular insulation cable core of arranging in the center and setting up in the outside a plurality of corrugated insulation cable cores all around of circular insulation cable core, circular insulation cable core and corrugated insulation cable core all comprise the conductor at center and the insulating layer of cladding outside the conductor; the rat-proof and termite-proof outer sheath layer comprises an outer wear-resistant layer, a middle rat-proof and termite-proof layer and an inner sheath layer, wherein a plurality of bending-resistant pieces and a plurality of sharp spines are arranged in the rat-proof and termite-proof layer, the bending-resistant pieces and the sharp spines are distributed at intervals, and rat-proof and termite-proof factice is filled in gaps between the bending-resistant pieces and the inner side wall of the wear-resistant layer.
Description
Technical Field
The utility model relates to a cable technical field indicates a there is not steamed low fire-retardant protection against rodents termite-proof power cable of cigarette especially.
Background
Termite damage to cables is a worldwide problem. The plastic sheathing of cables is frequently subject to termite damage. According to the investigation of the power and telecommunication departments in China, the areas where the termite damages the underground plastic sheath cable are found to be: guangdong, Fujian, Jiangxi, Zhejiang, Anhui, Sichuan, Hunan, Hubei, Yunnan, Hainan, Guangxi and Taiwan, etc. Failures of communication cables, optical cables and power cables in these areas caused by termite damage account for about 60-70% of the total number of failures. In an operation failure of a 300 km or more underground plastic communication cable laid in 1972 in the Guangdong region in the subtropical region, the termite damage failure accounted for 60%. In 1955-1992, the underground communication cable is bitten and damaged by termites 31 times in Guangdong province and Hainan province, wherein the Guangzhou city bites and damages 22 times, which accounts for 71% of failure rate. Buried high voltage cables imported from japan from the lakeda cambodia power plant in guangzhou in 1959 were damaged by termites. In 1999 to 2002, buried high-voltage cable sheaths of A factory and C factory of Dongguan Shajiao power plants are successively damaged by termites. 6 sections of high-voltage cables of Shenzhen Nanshan thermal power plant in 1999 are damaged by termites, and account for 66% of failure rate. Guangzhou, 11 months, 2000 found that multiple buried high voltage cables were bitten by termites. In the same year, the survey of 110-220 kV crosslinked cables in Guangzhou shows that the formicary accounts for 52%. Buried cables in Zhaoqing city in 2001 were severely damaged by termites. In 2003, the termite damage rate of a cable in the Zhanjiang power plant at a termite damage point 113 accounts for 69.3%. In Guangzhou in 2003, termites were detected in several high-voltage and extra-high-voltage cable lines. The hong kong optical cable line in china has a failure that termites bite the optical cable for 21 times from 1951 to 1959. In the new bamboo science park of taiwan, the power failure is caused for 7 times because the cable is damaged by the termites, so that the problem that the cable is damaged by the rats and the termites is urgently solved.
Therefore, the utility model provides a there is not steamed low fire-retardant protection against rodents termite power cable of cigarette to solve the problem that above-mentioned exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a there is not steamed low fire-retardant protection against rodents termite proof power cable of cigarette.
In order to solve the technical problem, the utility model provides a following technical scheme: a halogen-free low-smoke flame-retardant rat-proof termite-proof power cable comprises an insulating cable core group, a wrapping layer, an inner protection layer, an armor layer and a rat-proof termite-proof outer sheath layer, wherein the wrapping layer, the inner protection layer, the armor layer and the rat-proof termite-proof outer sheath layer are sequentially coated outside the insulating cable core group from inside to outside;
the rat-proof and termite-proof outer sheath layer comprises an outer wear-resistant layer, a middle rat-proof and termite-proof layer and an inner sheath layer, wherein a plurality of bending-resistant pieces and a plurality of sharp spines are arranged in the rat-proof and termite-proof layer, the bending-resistant pieces and the sharp spines are distributed at intervals, and rat-proof and termite-proof factice is filled in gaps between the bending-resistant pieces and the inner side wall of the wear-resistant layer.
As a preferred technical scheme of the utility model, the height of spine is less than the height of resistant crooked piece.
As an optimal technical scheme of the utility model, insulating core group and around being equipped with the filling layer between the covering, this filling layer intussuseption is filled with the glass silk rope.
As an optimal technical scheme, be the steamed low fire-retardant glass silk ribbon of cigarette around the covering.
As an optimized technical proposal, the inner protective layer is formed by adopting halogen-free low-smoke flame-retardant polyolefin extrusion.
As an optimal technical scheme of the utility model, the armor is anticorrosive galvanized steel strip armor or anticorrosive galvanized steel wire armor, anticorrosive galvanized steel strip armor adopts two anticorrosive galvanized steel strip clearances to form around the package, anticorrosive galvanized steel wire armor adopts the inseparable winding processing of thin anticorrosive galvanized steel wire to make.
As an optimal technical scheme of the utility model, the conductor forms for the transposition of multiunit copper line.
As an optimized technical proposal of the utility model, the sheath layer is made of thermoplastic halogen-free low-smoke flame-retardant polyolefin termite-proof sheath material.
As an optimized technical scheme of the utility model, resistant crooked piece is made for having elastic two semicircle combinations.
The utility model discloses the beneficial effect who reaches is:
1. according to the utility model, the abrasion-resistant layer is made of nylon, so that the abrasion resistance of the outer ring of the cable can be increased, and the cable is prevented from being gnawed by mice and termites easily; meanwhile, the plurality of sharp spines are arranged in the rat-proof and termite-proof layer, and the rat-proof and termite-proof ointment is filled between the bending-resistant part and the inner side wall of the wear-resistant layer, so that the cable can be effectively prevented from being bitten by rats, the rat-proof and termite-proof ointment can kill the termites and the rats, and the rats are prevented from being gnawed into the cable continuously, the aims of more effectively preventing the termites and the rats are fulfilled, and the service life of the whole power cable is further prolonged;
2. the bending resistance and the extrusion resistance of the cable can be improved through the plurality of bending-resistant pieces arranged in the rat-proof and termite-proof outer sheath layer, and the cable is prevented from being deformed and damaged due to the fact that the cable is stressed by soil for a long time;
the present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the outer sheath layer for protection against rats and termites;
FIG. 3 is an enlarged schematic view of a in FIG. 2 according to the present invention;
reference numbers in the figures: 1. wrapping a covering; 2. an inner protective layer; 3. an armor layer; 4. a rat-proof termite-proof outer sheath layer; 5. a conductor; 6. An insulating layer; 8. a wear layer; 9. a rat and termite resistant layer; 10. a sheath layer; 11. a bend resistant member; 12. pricking with a sharp point; 13. rat and termite resistant ointment; 14. and (5) filling the layer.
Detailed Description
The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): as shown in fig. 1-3, the utility model provides a pair of there is not steamed low fire-retardant protection against rodents termite-proof power cable of cigarette, including insulating cable core group and from inside to outside in proper order the cladding around covering 1, inner sheath 2, armor 3 and protection against rodents termite-proof oversheath layer 4 outside insulating cable core group, insulating cable core group is including the circular insulating cable core of arranging in the center and setting up in a plurality of corrugated insulating cable cores around the circular insulating cable core outside, circular insulating cable core and corrugated insulating cable core all comprise conductor 5 at the center and the insulating layer 6 of cladding outside conductor 5;
the rat-proof and termite-proof outer sheath layer 4 comprises an outer wear-resistant layer 8, a middle rat-proof and termite-proof layer 9 and an inner sheath layer 10, wherein a plurality of bending-resistant pieces 11 and a plurality of sharp spines 12 are arranged in the rat-proof and termite-proof layer 9, the bending-resistant pieces 11 and the sharp spines 12 are distributed at intervals, and rat-proof and termite-proof factice 13 is filled in gaps between the bending-resistant pieces 11 and the inner side wall of the wear-resistant layer 8;
the wear-resistant layer 8 can increase the wear resistance of the outer ring of the cable and increase the difficulty of mice and termites eating the cable;
the plurality of spines 12 can effectively prevent the cable from being bitten by mice;
the rat-proof and termite-proof ointment 13 can kill termites and rats and prevent the termites and rats from being gnawed inside the cable, so that the aims of more effectively preventing the termites and the rats are fulfilled, and the service life of the whole power cable is further prolonged;
the bending resistant pieces 11 can improve the bending resistance and the extrusion resistance of the cable, and the cable is prevented from being deformed and damaged due to the fact that the cable is pressed by soil for a long time.
Further, the height of the spikes 12 is lower than that of the bending-resistant pieces 11, so that the spikes 12 do not pierce the wear-resistant layer 8 when the cable is compressed.
Furthermore, a filling layer 14 is arranged between the insulating cable core group and the wrapping layer 1, and the filling layer 14 is filled with glass fiber ropes.
Further, the wrapping layer 1 is a halogen-free low-smoke flame-retardant glass ribbon.
Further, the inner protective layer 2 is formed by extruding halogen-free low-smoke flame-retardant polyolefin.
Further, armor 3 is anticorrosive galvanized steel strip armor or anticorrosive galvanized steel wire armor, anticorrosive galvanized steel strip armor adopts two anticorrosive galvanized steel strip clearances to wind and forms, anticorrosive galvanized steel wire armor adopts the inseparable winding processing of thin anticorrosive galvanized steel wire to make.
Further, the conductor 5 is formed by twisting a plurality of groups of copper wires.
Further, the sheath layer 10 is made of thermoplastic halogen-free low-smoke flame-retardant polyolefin termite-proof sheath material.
Further, the bending-resistant member 11 is made of two semi-circles with elasticity.
The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.
Claims (9)
1. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable is characterized by comprising an insulating cable core group, a wrapping layer (1), an inner protective layer (2), an armor layer (3) and a rat-proof termite-proof outer sheath layer (4), wherein the wrapping layer, the inner protective layer, the armor layer and the rat-proof termite-proof outer sheath layer are sequentially coated outside the insulating cable core group from inside to outside, the insulating cable core group comprises a round insulating cable core arranged in the center and a plurality of corrugated insulating cable cores arranged around the outside of the round insulating cable core, and the round insulating cable core and the corrugated insulating cable cores are both formed by a conductor (5) in the center and an insulating layer (6) coated outside the conductor (5);
the protection against rodents termite outer jacket layer (4) include wearing layer (8) in the outside, protection against rodents termite-proof layer (9) in the middle of and inboard restrictive coating (10), be equipped with a plurality of resistant crooked spare (11) and a plurality of spine (12) in protection against rodents termite-proof layer (9), a plurality of resistant crooked spare (11) and a plurality of spine (12) interval distribution, and it has protection against rodents termite-proof oleamen (13) to fill in the space between a plurality of resistant crooked spare (11) and wearing layer (8) inside wall.
2. A halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the height of the spikes (12) is lower than the height of the bending-resistant member (11).
3. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein a filling layer (14) is arranged between the insulating cable core group and the wrapping layer (1), and the filling layer (14) is filled with glass fiber ropes.
4. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the wrapping layer (1) is a halogen-free low-smoke flame-retardant glass ribbon.
5. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the inner protective layer (2) is formed by extruding halogen-free low-smoke flame-retardant polyolefin.
6. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the armor layer (3) is an anticorrosive galvanized steel strip armor layer or an anticorrosive galvanized steel wire armor layer, the anticorrosive galvanized steel strip armor layer is formed by winding double anticorrosive galvanized steel strips in a gap manner, and the anticorrosive galvanized steel wire armor layer is formed by tightly winding fine anticorrosive galvanized steel wires.
7. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the conductor (5) is formed by twisting a plurality of groups of copper wires.
8. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the sheath layer (10) is made of thermoplastic halogen-free low-smoke flame-retardant polyolefin termite-proof sheath material.
9. The halogen-free low-smoke flame-retardant rat-proof termite-proof power cable according to claim 1, wherein the bending-resistant member (11) is made of two elastic semicircular combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397251.1U CN213339759U (en) | 2020-10-23 | 2020-10-23 | Halogen-free low-smoke flame-retardant rat-proof termite-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397251.1U CN213339759U (en) | 2020-10-23 | 2020-10-23 | Halogen-free low-smoke flame-retardant rat-proof termite-proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213339759U true CN213339759U (en) | 2021-06-01 |
Family
ID=76075972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022397251.1U Active CN213339759U (en) | 2020-10-23 | 2020-10-23 | Halogen-free low-smoke flame-retardant rat-proof termite-proof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213339759U (en) |
-
2020
- 2020-10-23 CN CN202022397251.1U patent/CN213339759U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20040109651A1 (en) | Underground electrical cable with temperature sensing means | |
| CN201893153U (en) | Special ultravioresistant plateau cable capable of preventing damages from rats and birds | |
| CN213339759U (en) | Halogen-free low-smoke flame-retardant rat-proof termite-proof power cable | |
| JP7316775B2 (en) | cable | |
| CN110739101B (en) | High-strength photoelectric composite cable | |
| CN114914030A (en) | Buried optical cable | |
| CN210223591U (en) | Reel type charging pile cable | |
| CN213303711U (en) | Flame-retardant cable | |
| CN209388726U (en) | New-type charge connecting cable | |
| CN202632862U (en) | Multipurpose optical-fiber composite-structure cable | |
| CN213781629U (en) | Movable flexible cable | |
| CN206412118U (en) | A kind of anti-unfirmly closing and the cable of resistance to compression stretch-proof | |
| CN205943522U (en) | PVC jacketed cable | |
| CN214152483U (en) | Aluminum core flexible cable | |
| CN213242011U (en) | Crosslinked polyethylene insulated rat and termite resistant power cable | |
| CN211578449U (en) | Novel photoelectric composite cable for radio frequency base station | |
| CN219676917U (en) | Wire and cable with elastic wrapping and supporting functions | |
| CN211404110U (en) | Deformation-resistant and mothproof cable | |
| CN219303362U (en) | Cable outer sheath with uniform thickness | |
| CN213935685U (en) | 35kV and below super soft movable single core cable | |
| CN210606752U (en) | Waterproof and ratproof cable | |
| CN212659337U (en) | Cable with resistant crooked tensile is dragged | |
| CN2665877Y (en) | Low smoke, low halogen and flame retardant steel wire armoured light rail signal cable capable of preventing mouse and ants | |
| CN217086205U (en) | Tensile low-attenuation light communication cable | |
| CN219246396U (en) | Down-lead cable of fan blade embedded lightning receptor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |