CN110010290A - A kind of weather-proof long-life type power cable - Google Patents
A kind of weather-proof long-life type power cable Download PDFInfo
- Publication number
- CN110010290A CN110010290A CN201910308698.6A CN201910308698A CN110010290A CN 110010290 A CN110010290 A CN 110010290A CN 201910308698 A CN201910308698 A CN 201910308698A CN 110010290 A CN110010290 A CN 110010290A
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- type power
- power cable
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
Abstract
The present invention relates to a kind of weather-proof long-life type power cables, the weather-proof long-life type power cable respectively includes cable core, waterproof layer and restrictive coating from the inside to the outside, wherein, restrictive coating includes semiconductive material oversheath, sheath layer surface is coated with insect-proof agent, and semiconductive material oversheath is made of components such as nitrile rubber, neoprene and ethylene vinyl acetate rubber.The cable has excellent elongation rate of tensile failure at low temperature, and weatherability is strong, long service life, is adapted to various extreme environments.
Description
Technical field
The present invention relates to a kind of weather-proof long-life type power cables.
Background technique
With the fast development of economic construction of China, electricity needs rises year by year.How existing line corridor is made full use of
And line facility, it is as far as possible to convey electricity more, line loss is reduced, power transmission efficiency is improved and has become what operation power department must be taken into consideration
Problem.China's extremely frigid zones area accounts for about the 27.9% of territory total area, and the area such as northeast, Inner Mongol, northwest of energy abundance is big
High-cold regions are partially in, and winter temperature is often lower than -50 DEG C, the Low-Temperature Reliability for how improving cable becomes urgently to be resolved
One key technical problem.
In addition, for the country such as such as Russia, mineral products big country in some frigid zones, to the resistance to low temperature one of cable
As all there is special requirement, especially for low temperature extractive industry, cable needs fixed under -40 DEG C of even lower temperature grade
Laying conveying power, it is desirable that higher is that control cable needs to move back and forth during equipment extraction cooperating equipment movement, this
Just there is higher requirement to the temperature tolerance of cable rubber material.
It is domestic at present include general international standard for the Low temperature property requirements of cryocable be generally all only it is simple-
Elongation rate of tensile failure >=20% under the conditions of 40 DEG C, it is desirable that Gao Yidian's is >=30%.But actually user feedback is, existing insulation
Although its elongation rate of tensile failure of shielding material meets national standard, but in use, often exists too hard and causes to be laid with
It is inconvenient or serious embrittlement crackle occur after looking repeatedly, for medium and high voltage cable, the defect fatal to cable can be generated, just
It is to form non-uniform electric field at shielding cracking, while shielding partial discharge at cracking and greatly increasing, it is more likely that at this, generation is hit out
It wears, cable is caused to be scrapped.
Chinese granted patent CN107286406 B discloses a kind of super low-temperature resistant cable semiconductive material, is formed with
Imitate raw material and weight ratio involved in ingredient are as follows: 50~60 parts of nitrile rubber；20~30 parts of neoprene；Ethylene vinyl acetate
10~30 parts of rubber；1~2 part of antioxidant 4010NA；3~5 parts of vaseline；TMTD1~2 part；1~2 part of DM；Sulphur 0.2~
0.5 part；1~2 part of cumyl peroxide；3~6 parts of zinc oxide；2~4 parts of magnesia；Carbon black N33040~55 part；Conductive charcoal
Black 20~40 parts；8~12 parts of plasticizer.According to the record of the granted patent, the cable being prepared elongation at -45 DEG C
Highest can achieve 184%.
However, finding by laboratory testing, above-mentioned technical effect can't fully meet the height of cable under extremely cold environment
Accurate high-weatherability requirement, however it remains the phenomenon that cracking, be easy the generation of punch-through.
In addition, termite baits also in the long-lived effect and weather-proof effect for affecting cable to a certain degree.
Summary of the invention
In order to solve low temperature resistant cable in the prior art can't fully meet cable under extremely cold environment high-accuracy height it is resistance to
The requirement of time property, and the long-lived effect and weather-proof effect for baiting influence cable of termite are avoided, the invention proposes following technologies
Scheme:
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 50~60 parts of nitrile rubber；Neoprene
20~30 parts；10~30 parts of ethylene vinyl acetate rubber；4 parts of anti-aging agent；3~5 parts of vaseline；Tetramethylthiuram disulfide
1~2 part；2,2 ' -1~2 part of dithio-bis-benzothiazoles；0.2~0.5 part of sulphur；1~2 part of cumyl peroxide；Zinc oxide
3~6 parts；2~4 parts of magnesia；Carbon black N33040~55 part；20~40 parts of conductive black；12 parts of plasticizer；The anti-aging agent by
2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine are that 1:1 is constituted by weight.
The plasticizer is 3:1 by dioctyl phthalate and hexamethylene -1,2- dioctyl phthalate di-isooctyl by weight
It constitutes.
The waterproof layer is polyurethanes waterproof material.
Technical solution of the present invention has as follows by beneficial effect:
(1) using nitrile rubber, neoprene, the such combination of ethylene vinyl acetate rubber, make cable at low temperature
With excellent elongation rate of tensile failure, this ensures material under the conditions of -45 DEG C using still with good bending property.
(2) anti-aging agent is selected as 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-phenyl to benzene two
The combination of amine, above two component interdependence when as a whole, can cooperate with the aging for restraining or delaying cable
Journey, while also can inhibit the oxidation of plasticizer, the elongation rate of tensile failure of cable at low temperature is further improved, makes cable in low temperature
Under still have good contracting property.
(3) plasticizer is selected as the combination of dioctyl phthalate and hexamethylene -1,2- dioctyl phthalate di-isooctyl, and above-mentioned two
Kind component interdependence when as a whole, can cooperate with improves the elongation rate of tensile failure of cable at low temperature, weakens polymerization
The gravitation of object molecule interchain, and there is good cold tolerance, finally ensure that material is good using still having under the conditions of -45 DEG C
Good bending property.
(4) the sheath layer surface is coated with the chloro- 2- phenylphenol of 4- as insect-proof agent, it is possible to prevente effectively from termite is to electricity
Cable is baited, and the service life of cable is improved.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.
Embodiment 1
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 50 parts of nitrile rubber；20 parts of neoprene；Ethylene vinyl acetate
10 parts of vinyl acetate rubber；4 parts of anti-aging agent；3 parts of vaseline；1 part of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
1 part of azoles；0.2 part of sulphur；1 part of cumyl peroxide；3 parts of zinc oxide；2 parts of magnesia；N33040 parts of carbon black；Conductive black 20
Part；12 parts of plasticizer；The anti-aging agent is by 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-phenyl
P-phenylenediamine is that 1:1 is constituted by weight.The plasticizer is different by dioctyl phthalate and hexamethylene -1,2- dioctyl phthalate two
Monooctyl ester is that 3:1 is constituted by weight.The waterproof layer is polyurethanes waterproof material.
Embodiment 2
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 55 parts of nitrile rubber；25 parts of neoprene；Ethylene vinyl acetate
20 parts of vinyl acetate rubber；4 parts of anti-aging agent；4 parts of vaseline；2 parts of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
2 parts of azoles；0.4 part of sulphur；2 parts of cumyl peroxide；5 parts of zinc oxide；3 parts of magnesia；N33050 parts of carbon black；Conductive black 30
Part；12 parts of plasticizer；The anti-aging agent is by 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-phenyl
P-phenylenediamine is that 1:1 is constituted by weight.The plasticizer is different by dioctyl phthalate and hexamethylene -1,2- dioctyl phthalate two
Monooctyl ester is that 3:1 is constituted by weight.The waterproof layer is polyurethanes waterproof material.
Embodiment 3
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 60 parts of nitrile rubber；30 parts of neoprene；Ethylene vinyl acetate
30 parts of vinyl acetate rubber；4 parts of anti-aging agent；5 parts of vaseline；2 parts of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
2 parts of azoles；0.5 part of sulphur；2 parts of cumyl peroxide；6 parts of zinc oxide；4 parts of magnesia；N33055 parts of carbon black；Conductive black 40
Part；12 parts of plasticizer；The anti-aging agent is by 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-phenyl
P-phenylenediamine is that 1:1 is constituted by weight.The plasticizer is different by dioctyl phthalate and hexamethylene -1,2- dioctyl phthalate two
Monooctyl ester is that 3:1 is constituted by weight.The waterproof layer is polyurethanes waterproof material.
Embodiment 4
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 55 parts of nitrile rubber；25 parts of neoprene；Ethylene vinyl acetate
20 parts of vinyl acetate rubber；4 parts of anti-aging agent；4 parts of vaseline；2 parts of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
2 parts of azoles；0.4 part of sulphur；2 parts of cumyl peroxide；5 parts of zinc oxide；3 parts of magnesia；N33050 parts of carbon black；Conductive black 30
Part；12 parts of plasticizer；The anti-aging agent is only made of 2-mercaptobenzimidazole samarium complex.The plasticizer is by phthalic acid
Dioctyl ester and hexamethylene -1,2- dioctyl phthalate di-isooctyl are that 3:1 is constituted by weight.The waterproof layer is polyurethanes waterproof material
Material.
Embodiment 5
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 55 parts of nitrile rubber；25 parts of neoprene；Ethylene vinyl acetate
20 parts of vinyl acetate rubber；4 parts of anti-aging agent；4 parts of vaseline；2 parts of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
2 parts of azoles；0.4 part of sulphur；2 parts of cumyl peroxide；5 parts of zinc oxide；3 parts of magnesia；N33050 parts of carbon black；Conductive black 30
Part；12 parts of plasticizer；The anti-aging agent is only made of N- (1,3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine.The plasticizer
It is made of by weight for 3:1 dioctyl phthalate and hexamethylene -1,2- dioctyl phthalate di-isooctyl.The waterproof layer is poly-
Urethane class waterproof material.
Embodiment 6
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 55 parts of nitrile rubber；25 parts of neoprene；Ethylene vinyl acetate
20 parts of vinyl acetate rubber；4 parts of anti-aging agent；4 parts of vaseline；2 parts of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
2 parts of azoles；0.4 part of sulphur；2 parts of cumyl peroxide；5 parts of zinc oxide；3 parts of magnesia；N33050 parts of carbon black；Conductive black 30
Part；12 parts of plasticizer；The anti-aging agent is by 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-phenyl
P-phenylenediamine is that 1:1 is constituted by weight.The plasticizer is only made of dioctyl phthalate.The waterproof layer is poly- ammonia
Esters waterproof material.
Embodiment 7
A kind of weather-proof long-life type power cable, respectively includes cable core, waterproof layer and restrictive coating, the restrictive coating from the inside to the outside
Including semiconductive material oversheath, the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- phenylphenol of 4-.
The semiconductive material oversheath is grouped as by the group of following parts by weight: 55 parts of nitrile rubber；25 parts of neoprene；Ethylene vinyl acetate
20 parts of vinyl acetate rubber；4 parts of anti-aging agent；4 parts of vaseline；2 parts of tetramethylthiuram disulfide；2,2 '-two thio dibenzo thiophenes
2 parts of azoles；0.4 part of sulphur；2 parts of cumyl peroxide；5 parts of zinc oxide；3 parts of magnesia；N33050 parts of carbon black；Conductive black 30
Part；12 parts of plasticizer；The anti-aging agent is by 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-N '-phenyl
P-phenylenediamine is that 1:1 is constituted by weight.The plasticizer is only made of hexamethylene -1,2- dioctyl phthalate di-isooctyl.It is described anti-
Water layer is polyurethanes waterproof material.
Following table describes the component of anti-aging agent and plasticizer in embodiment 2 and embodiment 4-7 in detail and constitutes.
In order to verify the low temperature resistant effect of embodiment 2 and embodiment 4-7, by embodiment 2 and the cable sample of embodiment 4-7
- 45 DEG C of elongation at break (%) detections are carried out, as a result as follows:
The above results show that (1) anti-aging agent is selected as 2-mercaptobenzimidazole samarium complex and N- (1,3- dimethylbutyl)-
The combination of N '-diphenyl-para-phenylene diamine, above two component interdependence when as a whole, can cooperate with and restrain or delay
The ageing process of cable, while also can inhibit the oxidation of plasticizer, the elongation rate of tensile failure of cable at low temperature is further improved,
Make cable that still there is good contracting property at low temperature；(2) plasticizer is selected as dioctyl phthalate and hexamethylene -1,
The combination of 2- dioctyl phthalate di-isooctyl, above two component interdependence when as a whole, can cooperate with improvement cable
Elongation rate of tensile failure at low temperature weakens the gravitation of polymer molecule interchain, and has good cold tolerance, finally ensures material
Material is under the conditions of -45 DEG C using still with good bending property.
Claims (4)
1. a kind of weather-proof long-life type power cable, which is characterized in that cable core, waterproof layer and restrictive coating are respectively included from the inside to the outside,
The restrictive coating includes semiconductive material oversheath, and the sheath layer surface is coated with insect-proof agent, and the insect-proof agent is the chloro- 2- of 4-
Phenylphenol.
2. weather-proof long-life type power cable according to claim 1, which is characterized in that the semiconductive material oversheath by
The group of following parts by weight is grouped as: 50~60 parts of nitrile rubber；20~30 parts of neoprene；Ethylene vinyl acetate rubber 10~
30 parts；4 parts of anti-aging agent；3~5 parts of vaseline；1~2 part of tetramethylthiuram disulfide；2,2 '-dithio-bis-benzothiazoles 1~
2 parts；0.2~0.5 part of sulphur；1~2 part of cumyl peroxide；3~6 parts of zinc oxide；2~4 parts of magnesia；Carbon black N33040
~55 parts；20~40 parts of conductive black；12 parts of plasticizer；The anti-aging agent by 2-mercaptobenzimidazole samarium complex and N- (1,
3- dimethylbutyl)-N '-diphenyl-para-phenylene diamine be by weight 1:1 constitute.
3. weather-proof long-life type power cable according to claim 2, which is characterized in that the plasticizer is by phthalic acid
Dioctyl ester and hexamethylene -1,2- dioctyl phthalate di-isooctyl are that 3:1 is constituted by weight.
4. weather-proof long-life type power cable according to claim 3, which is characterized in that the waterproof layer is anti-for polyurethanes
Water material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308698.6A CN110010290B (en) | 2019-04-17 | 2019-04-17 | Weather-proof long-life power cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308698.6A CN110010290B (en) | 2019-04-17 | 2019-04-17 | Weather-proof long-life power cable |
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| CN110010290A true CN110010290A (en) | 2019-07-12 |
| CN110010290B CN110010290B (en) | 2021-11-12 |
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| CN110010290B (en) | 2021-11-12 |
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