CN209149849U - The termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat - Google Patents

The termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat Download PDF

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Publication number
CN209149849U
CN209149849U CN201822124340.1U CN201822124340U CN209149849U CN 209149849 U CN209149849 U CN 209149849U CN 201822124340 U CN201822124340 U CN 201822124340U CN 209149849 U CN209149849 U CN 209149849U
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layer
outside
semiconductive
termite
conductor
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鲁宁
汪进
胡寒立
南赞峰
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ZHEJIANG ZHENGTAI CABLE CO Ltd
Shandong Zhengtai Cable Co Ltd
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ZHEJIANG ZHENGTAI CABLE CO Ltd
Shandong Zhengtai Cable Co Ltd
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Abstract

The utility model discloses the termite-proof 110kV cross-linked polyethylene insulated cables of environment protection, rat, including conductor, conductor shield, insulating layer and insulation screen, it is characterized by: the outside of the conductor is successively arranged the special more imperial bands of semiconductive and semiconductive nylon bag band composite layer from inside to outside, conductor shield, insulating layer and insulation screen, it is successively arranged semiconductor waterstop from inside to outside and the expansion buffer band composite layer that blocks water in the outside of insulated wire cores, corrugated aluminum sheath layer, asphalt corrosion resistant layer, PVC inner restrictive coating, nylon sheath wire layer, PVC external sheath layer and semi-conductive layer.The utility model is mainly used for mouse, ant compares dense region substation, in the 110kV high voltage power transmission and transforming route of urban distribution network, prevents termite damage using nylon sheath wire, environment friendly and pollution-free, ensure that the safe and reliable operation of cable.

Description

The termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat
Technical field
The utility model relates to a kind of improvement of the termite-proof insulated cable of protection against rodents, belong to high voltage power transmission and transforming field, specifically Say it is a kind of termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat.
Background technique
Termite is mainly distributed on the tropical and subtropical region between 45 DEG C of north latitude to 45 DEG C of south latitude.In China, discovery has white The provinces and cities that ant destroys cable mainly have: Guangdong, Shanghai, Fujian, Taiwan, Jiangxi, Zhejiang, Anhui, Sichuan, Hunan, Hubei, cloud The provinces such as south, Hainan and Guangxi Zhuang Autonomous Region etc..China In Guangdong Province is since termite is to failure caused by cable harm according to statistics Account for about the 60~70% of cable fault sum.In order to guarantee the safe and reliable operation of cable run, there is termite activity all Area, cable should all take termite-proof measure.
The termite-proof method of protection against rodents of the termite-proof 110kV insulated cable of traditional protection against rodents, generallys use chemical method, both in cable The toxic pesticides that doses are added in sheath cause certain although can achieve the termite-proof effect of protection against rodents to environment Pollution, is unfavorable for environmental protection.The disadvantage is that: 1, the chemicals that in sheath contain can migrate, to cause environment dirty Dye;2, due to the fuel factor of cable, it can make termite-proof drug contained in sheath that aging, sustained release occur, anti-termite performance is gradually It reduces, it cannot be guaranteed that the anti-termite performance of cable is permanently effective;3, it in the process of the termite-proof layer of cable, can give out Evil gas, causes health hazard to the producer.
With the continuous improvement of social environment consciousness, client is higher and higher to the environment protection requirement of product, and environment-friendly type is anti- The chemical method protection against rodents anti-termite cable of mouse anti-termite cable substitution not environmentally is the inexorable trend of social development.
Summary of the invention
The purpose of this utility model is to provide a kind of 110kV high voltage power transmission and transformings for comparing dense region suitable for mouse, ant In route, biggish pulling force and pressure can be born, the maximum operating temperature that cable long-term work allows is 90 DEG C, when short-circuit (when Between≤5 seconds) maximum temperature be 250 DEG C, structure is simple, prevents the harm of mouse and termite using nylon sheath wire, and environmental protection is without dirt Dye guarantees the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat of the safe and reliable operation of cable.
In order to reach the goals above, the technical scheme adopted by the utility model is the termite-proof 110kV of the environment protection, rat Cross-linked polyethylene insulated cable, including conductor, conductor shielding layer, insulating layer and insulation screen, it is characterised in that: described leads The outside of body is successively arranged the much more special imperial bands of semiconductive and semiconductive nylon bag band composite layer, conductor shield, absolutely from inside to outside Edge layer and insulation screen, the conductor shield, insulating layer and the three-layer co-extruded setting of insulation screen are special more in semiconductive On the outside of imperial band and semiconductive nylon bag band composite layer, insulated wire cores are constituted;It is successively set from inside to outside in the outside of insulated wire cores There is semiconductor waterstop and block water expansion buffer band composite layer, corrugated aluminum sheath layer, asphalt corrosion resistant layer, PVC inner restrictive coating, nylon Restrictive coating, PVC external sheath layer and semi-conductive layer.
The conductor is round compact conductor or five milliken conductors;The round compact conductor is to press to be twisted into circle 240~630mm of sectional area of shape2Conductor;Five milliken conductors are that five fan-segmentation stock blocks for being 72 ° by fan angle press It is twisted into round composition, is equipped with insulating paper between adjacent fan-segmentation stock block, the sectional area of five milliken conductors is 800~ 1600mm2
The special more imperial bands of the semiconductive and semiconductive nylon bag band composite layer are by the special more tengential belts of one layer of semiconductive and one Layer semiconductive nylon tape is constituted, the first special more tengential belts of wrapped one layer of semiconductive in the outside of the conductor, further around one layer of semiconductive of packet Nylon tape.
The conductor shield is not peelable type peroxide crosslinking semiconductive shielding layer.
The insulating layer is peroxide crosslinked polyethylene insulating layer.
The insulation screen is peelable type peroxide crosslinking insulation screen.
The semiconductor waterstop and the expansion buffer band composite layer that blocks water is blocked water by one layer of semiconductor waterstop and one layer Expansion buffer band is constituted, the first wrapped one layer of semiconductor waterstop in the outside of the insulation screen, is blocked water further around one layer of packet swollen Swollen buffer strip.
The corrugated aluminum sheath layer is welded on semiconductor waterstop and the expansion buffer band composite layer outside that blocks water, thickness For 2.0~2.3mm.
The asphalt corrosion resistant layer is coated on the outside of corrugated aluminum sheath layer.
The PVC inner restrictive coating is extruded on the outside of asphalt corrosion resistant layer.
The nylon sheath wire layer is extruded on the outside of PVC inner restrictive coating, with a thickness of 0.5~0.8mm.
The PVC external sheath layer is extruded on the outside of nylon sheath wire layer.
The semi-conductive layer is thermoplastic PVC semi-conductive layer, is extruded on the outside of PVC external sheath layer.
The utility model has the beneficial effects that: being mainly used for mouse, ant compares dense region substation, urban distribution network It in 110kV high voltage power transmission and transforming route, can be used in direct buried, tunnel or in pipeline, biggish pulling force and pressure can be born, electricity The maximum operating temperature that cable long-term work allows is 90 DEG C, and the maximum temperature of (time≤5 second) is 250 DEG C when short-circuit, structure letter It is single, termite damage is prevented using nylon sheath wire, it is environment friendly and pollution-free, it ensure that the safe and reliable operation of cable.
Detailed description of the invention
Fig. 1 is the structure section schematic cross-sectional view of the utility model.
In figure: 1, conductor;2, the special more imperial bands of semiconductive and semiconductive nylon bag band composite layer;3, conductor shield;4, Insulating layer;5, insulation screen;6, semiconductor waterstop and the expansion buffer band composite layer that blocks water;7, corrugated aluminum sheath layer;8, it drips Green erosion resistant coating;9, PVC inner restrictive coating;10, nylon sheath wire layer;11, PVC external sheath layer;12, semi-conductive layer.
Specific embodiment
The utility model is made referring to Fig.1.The termite-proof 110kV cross-linked polyethylene insulated cable of the environment protection, rat, including Conductor 1, conductor shield 3, insulating layer 4 and insulation screen 5, it is characterised in that: the outside of the conductor 1 from inside to outside according to It is secondary to be equipped with the special more imperial bands of semiconductive and semiconductive nylon bag band composite layer 2, conductor shield 3, insulating layer 4 and insulation screen 5, the conductor shield 3, insulating layer 4 and the three-layer co-extruded setting of insulation screen 5 are led in the special more imperial bands of semiconductive and partly Electric 2 outside of nylon bag band composite layer, constitutes insulated wire cores;Semiconductive is successively arranged from inside to outside in the outside of insulated wire cores to block water Band and block water expansion buffer band composite layer 6, corrugated aluminum sheath layer 7, asphalt corrosion resistant layer 8, PVC inner restrictive coating 9, nylon sheath wire layer 10, PVC external sheath layer 11 and semi-conductive layer 12.
The conductor 1 is round compact conductor or five milliken conductors;The round compact conductor is to press to be twisted into Circular 240~630mm of sectional area2Conductor;Five milliken conductors are tight for 72 ° of five fan-segmentation stock blocks by fan angle Pressure is twisted into round composition, is equipped with insulating paper between adjacent fan-segmentation stock block, and the sectional area of five milliken conductors is 800~ 1600mm2
The special more imperial bands of the semiconductive and semiconductive nylon bag band composite layer 2 are by the special more tengential belts of one layer of semiconductive and one Layer semiconductive nylon tape is constituted, the first special more tengential belts of wrapped one layer of semiconductive in the outside of the conductor 1, further around one layer of semiconductive of packet Nylon tape.
The conductor shield 3 is not peelable type peroxide crosslinking semiconductive shielding layer, is that use is not peelable Made of type peroxide crosslinking semiconductive shieldin material.
The insulating layer 4 is peroxide crosslinked polyethylene insulating layer, is made of using peroxide crosslinked polyethylene 's.
The insulation screen 5 is peelable type peroxide crosslinking insulation screen, is using peelable type peroxide Made of compound cross linked insulation shielding material.
The semiconductor waterstop and the expansion buffer band composite layer 6 that blocks water is blocked water by one layer of semiconductor waterstop and one layer Expansion buffer band is constituted, the first wrapped one layer of semiconductor waterstop in the outside of the insulation screen 5, is blocked water further around one layer of packet swollen Swollen buffer strip, to play the role of cable longitudinal water-blocking, the semiconductor waterstop is using single-layer nonwoven cloth, partly leads Electric material and high-absorbent material are combined, and the expansion buffer band that blocks water is using Multi-layered non-woven cloth, semiconductive material It is combined with high-absorbent material.
The corrugated aluminum sheath layer 7 is welded on semiconductor waterstop and 6 outside of expansion buffer band composite layer that blocks water, thick Degree is 2.0~2.3mm, plays the role of cable radial water-resisting, and the corrugated aluminum sheath layer 7 is the cold rolling using the trade mark 1060 Aluminium strip.
The asphalt corrosion resistant layer 8 is coated in 7 outside of corrugated aluminum sheath layer, and corrugated aluminum sheath layer 7 is prevented to be corroded.
The PVC inner restrictive coating 9 is extruded in 8 outside of asphalt corrosion resistant layer, and the PVC inner restrictive coating 9 is by PVC material It is manufactured.
The nylon sheath wire layer 10 is extruded in 9 outside of PVC inner restrictive coating, with a thickness of 0.5~0.8mm, as physics The termite-proof layer of protection against rodents does not add any poisonous and hazardous chemicals, plays the termite-proof and environmentally friendly double acting of protection against rodents, described Nylon sheath wire layer 10 be using made of nylon 12 material.
The PVC external sheath layer 11 is extruded in 10 outside of nylon sheath wire layer, and the PVC external sheath layer 11 is by PVC Made of material.
The semi-conductive layer 12 is thermoplastic PVC semi-conductive layer, is extruded in 11 outside of PVC external sheath layer, described Semi-conductive layer 12 is made of the thermoplastic PVC semiconductive shieldin material of use.
The production method of the above-mentioned termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat, it is characterised in that:
(1), conductor 1 is made:
When using round compact conductor, the round compact conductor be press be twisted into circular sectional area 240~ 630mm2Conductor becomes cable core;
When using five milliken conductors, five milliken conductors are that five fan-segmentation stock blocks for being 72 ° by fan angle press It is twisted into round composition, the sectional area of five milliken conductors is 800~1600mm2;The fan-segmentation stock block made is being had It carries out being twisted into circle on phase-adjusted disk winch, the fan angle of fan-segmentation stock block just becomes after twisted both facing to the center of circle 360 ° of circle is separated with insulating paper between adjacent fan-segmentation stock block, fan-segmentation stock block presses be twisted into round conductor after, As cable core.
(2), the special more imperial bands of production semiconductive and semiconductive nylon bag band composite layer 2: first wrapped one layer outside cable core The special more tengential belts of semiconductive, further around one layer of semiconductive nylon tape of packet, so that the special more imperial bands of semiconductive and semiconductive nylon bag be made Band composite layer 2.
(3), insulated wire cores are made in three-layer co-extruded conductor shield 3, insulating layer 4 and insulation screen 5: in import, Germany is special 5 three layers of enterprising column conductor shielded layer 3 of Le Site VCV production line, insulating layer 4 and insulation screen co-extrusion are coated on semiconductive 2 outside of special more imperial bands and semiconductive nylon bag band composite layer;Conductor shield 3 should be uniformly coated on 1 outside of milliken conductor The much more special imperial bands of semiconductive and semiconductive nylon bag band composite layer 2 on, 3 surface of conductor shield answer it is smooth, without obvious twisted wire Burr, material grain, is burnt or abrasive trace wedge angle;Any one place's thinnest point of insulating layer 4 should be not less than the 90% of nominal value, core shift Degree≤8%;Insulation screen 5 should uniformly, and surface is answered smooth.
(4), it degassing: after the completion of insulated wire cores production, into deaeration chamber, parks 7 days, allows in 70 DEG C of constant temperature deaeration chamber The gas that insulating layer 4 generates in cross-linking chemistry reaction process thoroughly releases.
(5), water blocking layer is made, i.e., wrapped semiconductor waterstop and blocks water expansion buffer with composite layer 6: in insulated wire cores The first wrapped one layer of semiconductor waterstop in outside, further around one layer of expansion buffer band that blocks water of packet, to play the work of cable longitudinal water-blocking With twining package tape answers uniform, semiconductive cloth one side that should closely be coated in insulated wire cores, and adjacent two layers must be put up, and same layer is not There must be overlapping that outer diameter is caused to increase.
(6), make corrugated aluminum sheath layer 7, play the role of cable radial water-resisting: the corrugated aluminum sheath layer 7 welds In semiconductor waterstop and 6 outside of expansion buffer band composite layer that blocks water, with a thickness of 2.0~2.3mm, corrugated aluminum sheath layer 7 is adopted Cold Rolling Aluminium Strip with purity not less than 99.50% is made.
(7), it makes asphalt corrosion resistant layer 8: using Electric heating, by asphalt melting, through three screw pump, pitch by molten Change case and enter high-voltage tube, then control the pressure in high-voltage tube by quck-opening valve, cable core is enable to reach full and uniform coating.
(8), it makes PVC inner restrictive coating 9: extruding one layer of PVC inner restrictive coating 9, the PVC on the outside of asphalt corrosion resistant layer 8 Inner restrictive coating 9 be it is made of pvc material, since PVC sheath layer 9 is made of PVC, material is harder, plays the role of protection against rodents.
(9), make nylon sheath wire layer 10: it is 0.5~0.8mm's that a layer thickness is extruded on the outside of the PVC inner restrictive coating 9 Nylon sheath wire layer 10 needs to vacuumize when squeezing out, and extrusion temperature will be controlled at 200 DEG C~250 DEG C, the nylon sheath wire layer 10 are made into using nylon 12 material, as the termite-proof layer of physics protection against rodents, do not add any poisonous and hazardous chemicals, are risen The termite-proof and environmentally friendly double acting of protection against rodents is arrived.
(10), it makes PVC external sheath layer 11: extruding one layer of PVC external sheath layer 11, institute on the outside of the nylon sheath wire layer 10 The PVC external sheath layer 11 stated is made of pvc material.
(11), it makes semi-conductive layer 12: extruding one layer of semi-conductive layer 12 on the outside of the PVC external sheath layer 11, it is described Semi-conductive layer 12 is the thermoplastic PVC semiconductive shieldin material used.
The utility model is mainly used for mouse, ant compares dense region substation, the 110kV high voltage power transmission and transforming line of urban distribution network Lu Zhong can bear biggish pulling force and pressure, and the maximum operating temperature that cable long-term work allows is 90 DEG C, (time when short-circuit ≤ 5 seconds) maximum temperature be 250 DEG C, termite damage is prevented using nylon sheath wire, it is environment friendly and pollution-free, ensure that cable safety, Reliability service.

Claims (9)

1. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat, including conductor (1), conductor shield (3), insulation Layer (4) and insulation screen (5), it is characterised in that: it is special more that the outside of the conductor (1) is successively arranged semiconductive from inside to outside Imperial band and semiconductive nylon bag band composite layer (2), conductor shield (3), insulating layer (4) and insulation screen (5), it is described Conductor shield (3), insulating layer (4) and the three-layer co-extruded setting of insulation screen (5) are in the special more imperial bands of semiconductive and semiconductive On the outside of nylon bag band composite layer (2), insulated wire cores are constituted;Semiconductive is successively arranged from inside to outside in the outside of insulated wire cores to block water Band and block water expansion buffer band composite layer (6), corrugated aluminum sheath layer (7), asphalt corrosion resistant layer (8), PVC inner restrictive coating (9), nylon Restrictive coating (10), PVC external sheath layer (11) and semi-conductive layer (12).
2. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The conductor (1) is round compact conductor or five milliken conductors;The round compact conductor be press be twisted into it is circular 240~630mm of sectional area2Conductor;Five milliken conductors are by fan angle, and to be that 72 ° of five fan-segmentation stock blocks press twisted It being constituted at circle, is equipped with insulating paper between adjacent fan-segmentation stock block, the sectional areas of five milliken conductors is 800~ 1600mm2
3. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The special more imperial bands of the semiconductive and semiconductive nylon bag band composite layer (2) are led by the special more tengential belts of one layer of semiconductive and one and half Electric nylon tape is constituted, the first special more tengential belts of wrapped one layer of semiconductive in the outside of the conductor (1), further around one layer of semiconductive nylon of packet Band.
4. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The semiconductor waterstop and expansion buffer band composite layer (6) that blocks water blocked water by one layer of semiconductor waterstop and one layer expand it is slow Punching band is constituted, the first wrapped one layer of semiconductor waterstop in the outside of the insulation screen (5), and blocking water further around one layer of packet, it is slow to expand Rush band.
5. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The corrugated aluminum sheath layer (7) is welded on semiconductor waterstop and expansion buffer band composite layer (6) outside that blocks water, with a thickness of 2.0~2.3mm.
6. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The asphalt corrosion resistant layer (8) is coated on the outside of corrugated aluminum sheath layer (7);It is anti-that the PVC inner restrictive coating (9) is extruded in pitch On the outside of rotten layer (8).
7. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The nylon sheath wire layer (10) is extruded on the outside of PVC inner restrictive coating (9), with a thickness of 0.5~0.8mm.
8. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The PVC external sheath layer (11) is extruded on the outside of nylon sheath wire layer (10).
9. the termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat according to claim 1, it is characterised in that: The semi-conductive layer (12) is thermoplastic PVC semi-conductive layer, is extruded on the outside of PVC external sheath layer (11).
CN201822124340.1U 2018-12-18 2018-12-18 The termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat Active CN209149849U (en)

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Application Number Priority Date Filing Date Title
CN201822124340.1U CN209149849U (en) 2018-12-18 2018-12-18 The termite-proof 110kV cross-linked polyethylene insulated cable of environment protection, rat

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