CN215118440U

CN215118440U - Airport illumination protection against rodents lightning protection power cable

Info

Publication number: CN215118440U
Application number: CN202120958092.XU
Authority: CN
Inventors: 匡松文; 张利军; 朱珂; 魏道强; 唐攀
Original assignee: Hengfei Cable Co ltd
Current assignee: Hengfei Cable Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2021-12-10
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses an airport illumination protection against rodents lightning power cable, its technical scheme main points are: the rat-proof cable comprises a copper core conductor, wherein a conductor shielding layer is fixedly connected to the outer side of the copper core conductor, a crosslinked polyethylene insulating layer is fixedly connected to the outer side of the conductor shielding layer, an insulating shielding layer is fixedly connected to the outer side of the crosslinked polyethylene insulating layer, a copper belt layer is fixedly connected to the outer side of the insulating shielding layer, a belting layer is fixedly connected to the outer side of the copper belt layer, an isolating layer is fixedly connected to the outer side of the belting layer, a protective layer is fixedly connected to the outer side of the isolating layer, and a rat-proof outer sleeve is fixedly connected to the outer side of the protective layer; the cable is simple in structure, high in mouse bite prevention and use strength, high in insulativity, capable of effectively preventing lightning stroke, high in practicability, wide in application prospect and worthy of popularization and use, and the problem of thermal shrinkage during production is well solved.

Description

Airport illumination protection against rodents lightning protection power cable

Technical Field

The utility model relates to a power cable's power transmission and distribution field, in particular to airport illumination protection against rodents lightning protection power cable.

Background

At present, the existing 6kV lighting cable in a flight area in an airport has the following problems:

firstly, the requirement of rat prevention is not considered in the cable structure, when the cable is exposed and laid outdoors for a long distance and no protective measures are taken, rats are exposed and submerged, and the cable is often bitten by rats to cause the cable to break down, so that the normal take-off and landing of flights are influenced;

secondly, the geographical position of the airport is special, the lightning phenomenon is common, and the influence of the lightning impulse waves on the structural design of the lighting cable or the grounding is fatal

Third, the smaller gauge of the lighting cable is typically 6mm²Or 10mm²The core deviation degree of the cross-linked polyethylene insulation three-layer co-extrusion insulation is more than 10%, the quality of a middle head or a terminal joint of a cable is influenced, the cable is one of invisible hazard sources in a line, in addition, the insulation thickness of the cable is thicker, residual gas in the insulation after a finished product is not completely released after 4-6 months, the insulation shrinkage of the cable is larger, and most of the breakdown generated at the middle joint and the terminal joint of a medium-voltage cable in operation is caused by the insulation shrinkage. In the use process of the cable unqualified in the insulation thermal shrinkage test, the shrinkage generated by insulation is too large along with the extension of time, so that the conductor is exposed possibly, electric shock hazard is generated, or a joint is exploded, and a short circuit accident occurs to a circuit. To solve the above problems, we are structural and technological. A novel rat-proof and lightning-proof power cable for airport illumination is designed.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing an airport illumination protection against rodents lightning protection power cable to solve the rat damage, thunderbolt and the thermal contraction problem that the background art exists.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an airport illumination protection against rodents lightning protection power cable, includes the copper core conductor, the outside fixedly connected with conductor shield layer of copper core conductor, conductor shield layer outside fixedly connected with crosslinked polyethylene insulating layer, crosslinked polyethylene insulating layer outside fixedly connected with insulating shield layer, insulating shield layer outside fixedly connected with copper tape layer, the outside fixedly connected with band layer on copper tape layer, the outside fixedly connected with isolation layer on band layer, the outside fixedly connected with inoxidizing coating of isolation layer, inoxidizing coating outside fixedly connected with protection against rodents overcoat.

Through adopting above-mentioned technical scheme for this cable simple structure has stronger protection against rodents to sting and use strength, and has overcome the thermal contraction problem during production betterly, has higher insulating nature simultaneously, can prevent the thunderbolt effectively, and the practicality is strong, and application prospect is comparatively extensive, is worth using widely.

Preferably, the inoxidizing coating is including weaving the earth connection layer, weave earth connection layer fixed connection in the outside of isolation layer, weave earth connection layer outside fixedly connected with aluminium system layer, the aluminium system layer outside and the inboard fixed connection of protection against rodents overcoat.

Through adopting above-mentioned technical scheme, can protect the inboard of this cable betterly through setting up the inoxidizing coating, improve the use intensity of this cable.

Preferably, the protection against rodents overcoat includes the protection against rodents layer, protection against rodents layer fixed connection is in the outside on aluminium system layer, protection against rodents in situ portion is equidistant to be equipped with the hot pepper particle.

Through adopting above-mentioned technical scheme, set up the protection against rodents overcoat, the capsaicin composition in the inside hot pepper particle of accessible protection against rodents layer carries out the paralysis to the nerve of mouse to prevent the invasion of mouse in the smell, and because capsaicin refines from the hot pepper, harmless to water and soil, have the feature of environmental protection.

Preferably, the thickness of the aluminum layer is 1mm, the braided grounding wire layer is a matrix braided by copper wires, the cross section of the braided grounding wire layer is 6 square, and the braided grounding wire layer is flat.

Through adopting above-mentioned technical scheme, through setting up the inside aluminium system layer of inoxidizing coating for this cable has stronger mechanical properties, thereby makes the mouse gnaw and stings not the power of going up, weaves the ground connection layer through the setting, can form ground connection earial drainage unit, and is respond well.

Preferably, the copper core conductor is arranged as a stranded compacted conductor, and the cross section of the copper core conductor is 6mm²Or 10mm²。

Through adopting above-mentioned technical scheme, through setting up the copper core conductor that the transposition sticiss, can improve the use strength of copper core conductor.

Preferably, the insulation volume resistance of the crosslinked polyethylene insulation layer is set to 10¹⁷Ohm meter, the isolation layer is arranged as a polyethylene layer.

By adopting the technical scheme, the volume resistance is set to be 10¹⁷The crosslinked polyethylene insulating layer of ohm meter can bear higher electric strength, and the isolating layer made of polyethylene material can prevent moisture from generating.

To sum up, the utility model discloses mainly have following beneficial effect:

firstly, a copper core conductor and a conductor shielding layer are tightly connected to play a role of uniform electric field, a cross-linked polyethylene insulating layer and an insulation shielding layer are arranged to bear higher electric strength, the conductor shielding layer, the cross-linked polyethylene insulating layer and the insulation shielding layer are extruded together to form three-layer co-extrusion, and the insulation core deviation degree is adjusted by using an online deviation measuring instrument in the three-layer co-extrusion process to be controlled within 8%;

secondly, by arranging an insulating shielding layer, a wrapping tape layer and a copper tape layer, a composite shield is formed, the cable is subjected to the action of uniform electric field, the electric field is prevented from being concentrated, the isolating layer made of excellent polyethylene materials can well prevent moisture of the cable from being generated, and a grounding leakage unit can be formed by arranging a braided grounding wire layer, so that lightning stroke is effectively prevented;

the third, through setting up the inside aluminium system layer of inoxidizing coating for this cable has stronger mechanical properties, thereby makes the mouse gnaw and sting not upper power, and sets up the protection against rodents overcoat, and the capsaicin composition in the inside hot pepper particle of accessible protection against rodents layer carries out the paralysis to the nerve of mouse, thereby prevents the invasion of mouse in the smell, and because capsaicin refines from the hot pepper, harmless water and soil have the feature of environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a sectional view of the present invention;

fig. 3 is an internal structure view of the rat-proof coat of the present invention.

Reference numerals: 1. a copper-core conductor; 2. a conductor shield layer; 3. a crosslinked polyethylene insulating layer; 4. an insulating shield layer; 5. a copper tape layer; 6. a belting layer; 7. an isolation layer; 8. a protective layer; 81. weaving a grounding wire layer; 82. an aluminum layer; 9. a rat-proof coat; 91. a rat-proof layer; 92. capsicum particulates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, an airport lighting protection against rodents lightning protection power cable, includes copper core conductor 1, the outside fixedly connected with conductor shield 2 of copper core conductor 1, 2 outside fixedly connected with crosslinked polyethylene insulating layers 3 of conductor shield, 3 outside fixedly connected with insulating shield 4 of crosslinked polyethylene insulating layers, 4 outside fixedly connected with copper tape layer 5 of insulating shield, the outside fixedly connected with band layer 6 of copper tape layer 5, the outside fixedly connected with isolation layer 7 of band layer 6, the outside fixedly connected with inoxidizing coating 8 of

isolation layer

7, 8 outside fixedly connected with protection against rodents overcoat 9 of inoxidizing coating.

Referring to fig. 1-3, for the purpose of improving the strength of the present cable in use; the protective layer 8 comprises a woven grounding layer 81, the woven grounding layer 81 is fixedly connected to the outer side of the isolation layer 7, an aluminum layer 82 is fixedly connected to the outer side of the woven grounding layer 81, the outer side of the aluminum layer 82 is fixedly connected with the inner side of the rat-proof jacket 9, the rat-proof jacket 9 comprises a rat-proof layer 91, the rat-proof layer 91 is fixedly connected to the outer side of the aluminum layer 82, pepper particles 92 are arranged in the rat-proof layer 91 at equal intervals, the thickness of the aluminum layer 82 is 1MM, the woven grounding layer 81 is set to be a matrix woven by copper wires, the cross section of the woven grounding layer 81 is 6 square, and the shape of the woven grounding layer 81 is flat; can protect the inboard of this cable betterly through setting up inoxidizing coating 8, improve the use strength of this cable, set up protection against rodents overcoat 9, capsaicin composition in the inside hot pepper particle 92 of accessible protection against rodents layer 91, paralyze the nerve of mouse, thereby prevent the invasion of mouse from the smell, and because capsaicin refines from the hot pepper, harmless to water and soil, the feature of environmental protection has, through setting up the inside aluminium system layer 82 of inoxidizing coating 8, make this cable have stronger mechanical properties, thereby make the mouse gnaw and sting not the power of going up, weave ground connection layer 81 through the setting, can form ground connection earial drainage unit, and is good in effect.

Referring to fig. 1-2, for the purpose of improving the strength of use of the copper-core conductor 1; the copper-core conductor 1 is a stranded and compacted conductor, and the cross section of the copper-core conductor 1 is 6mm²Or 10mm²(ii) a By arranging the stranded and compacted copper-core conductor 1, the use strength of the copper-core conductor 1 can be improved.

Referring to fig. 1-2, for the purpose of improving the moisture resistance of the present cable; the insulation volume resistance of the crosslinked polyethylene insulation layer 3 was set to 10¹⁷The isolating layer 7 is a polyethylene layer; by setting the volume resistance to 10¹⁷The Eumm crosslinked polyethylene insulating layer 3 can withstand high electrical strength and is provided with a polymerThe barrier layer 7 of vinyl prevents moisture from being generated.

The use principle and the advantages are as follows: through setting up copper core conductor 1 and conductor shielding layer 2 zonulae occludens, can play the effect of even electric field to set up crosslinked polyethylene insulating layer 3 and insulating shielding layer 4 and can bear higher electric strength, conductor shielding layer 2, crosslinked polyethylene insulating layer 3 and insulating shielding layer 4 are extruded altogether simultaneously, form the three-layer and crowd altogether, crowd the in-process altogether at the three-layer and adjust insulating core bias degree through applying online deviator, make it control within 8%. In order to better eliminate the insulating thermal shrinkage phenomenon during production and processing, the insulating thermal shrinkage of the XLPE cross-linked polyethylene insulated cable is mainly caused by internal stress generated during XLPE insulating extrusion, so that orderly arranged crystalline XLPE molecules are subjected to disorientation, and in order to solve the insulating thermal shrinkage problem, factors which cause the increase of the insulating crystallinity of XLPE, the enhancement of orientation and the increase of internal stress during the cable insulating three-layer co-extrusion process are found out; by arranging the insulating shielding layer 4, the wrapping tape layer 6 and the copper tape layer 5, a composite shield is formed, the cable is uniformly provided with an electric field, the electric field is prevented from being concentrated, the isolating layer 7 made of excellent polyethylene materials can well prevent moisture of the cable from being generated, a grounding leakage unit can be formed by arranging the braided grounding wire layer 81, the effect is good, and lightning stroke is effectively prevented; through setting up the inside aluminium system layer 82 of inoxidizing coating 8 for this cable has stronger mechanical properties, thereby make the mouse gnaw and sting not the power of exerting oneself, and set up protection against rodents overcoat 9, the capsaicin composition in the inside hot pepper particle 92 of accessible protection against rodents layer 91, paralyzes the nerve of mouse, thereby prevents the invasion of mouse from the smell, and because capsaicin refines from the hot pepper, harmless to water and soil, has the feature of environmental protection.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an airport illumination protection against rodents lightning power cable, includes copper core conductor (1), its characterized in that: the outer side fixedly connected with conductor shielding layer (2) of copper core conductor (1), conductor shielding layer (2) outside fixedly connected with crosslinked polyethylene insulating layer (3), crosslinked polyethylene insulating layer (3) outside fixedly connected with insulation shielding layer (4), insulation shielding layer (4) outside fixedly connected with copper tape layer (5), the outside fixedly connected with band layer (6) of copper tape layer (5), the outside fixedly connected with isolation layer (7) of band layer (6), the outside fixedly connected with inoxidizing coating (8) of isolation layer (7), inoxidizing coating (8) outside fixedly connected with protection against rodents overcoat (9).

2. The airfield lighting rat-proof lightning-proof power cable according to claim 1, characterized in that: the inoxidizing coating (8) are including weaving ground wire layer (81), weave ground wire layer (81) fixed connection in the outside of isolation layer (7), weave ground wire layer (81) outside fixedly connected with aluminium system layer (82), aluminium system layer (82) outside and protection against rodents overcoat (9) inboard fixed connection.

3. The airfield lighting rat-proof lightning-proof power cable according to claim 2, characterized in that: protection against rodents overcoat (9) is including protection against rodents layer (91), protection against rodents layer (91) fixed connection is in the outside on aluminium system layer (82), protection against rodents layer (91) inside equidistant hot pepper particle (92) that is equipped with.

4. The airfield lighting rat-proof lightning-proof power cable according to claim 2, characterized in that: the thickness of aluminium system layer (82) is 1mm, it sets up to the base member that the copper wire was woven to weave ground wire layer (81), the cross-section of weaving ground wire layer (81) is 6 squares, and the shape is flat.

5. The airfield lighting rat-proof lightning-proof power cable according to claim 1, characterized in that: the copper core conductor (1) is a stranded and compacted conductor, and the section of the copper core conductor (1) is 6mm²Or 10mm²。

6. The airfield lighting rat-proof lightning-proof power cable according to claim 1, characterized in that: the insulation volume resistance of the crosslinked polyethylene insulation layer (3) is set to 10¹⁷Ohm meter, the isolation layer (7) is a polyethylene layer.