CN102194555A - Method for manufacturing watertight overhead protective power cable with copper core - Google Patents
Method for manufacturing watertight overhead protective power cable with copper core Download PDFInfo
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- CN102194555A CN102194555A CN 201010119010 CN201010119010A CN102194555A CN 102194555 A CN102194555 A CN 102194555A CN 201010119010 CN201010119010 CN 201010119010 CN 201010119010 A CN201010119010 A CN 201010119010A CN 102194555 A CN102194555 A CN 102194555A
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- watertight
- conductor
- type semiconductor
- copper core
- power cable
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Abstract
The invention provides a method for manufacturing a watertight overhead protective power cable with a copper core. The method comprises the following steps: heating a conductor to 110-160 DEG C; carrying out co-extrusion on a watertight type semiconductor and an insulating layer to completely fill the watertight type semiconductor in gaps among conductor wire bundles so as to form a watertight layer; and coating the watertight type semiconductor around the conductor to form a semi-conducting layer. The power cable obtained by using the method has greatly-improved insulating property and corrosion resistance, and the problem of wire breakage due to long-term use is avoided.
Description
Technical field
The present invention relates to a kind of cable making method, particularly a kind of copper core watertight is maked somebody a mere figurehead the protective cable manufacture method.
Background technology
Along with the increase of urban electric power demand and the raising of densification degree, the electrician trade of China is rapidly developed.The density of power distribution network improves thereupon, and the reliability and the fail safe of transmission and distribution network are also had higher requirement.Thereby advanced from the process of bare wire to insulated cable; Simultaneously electric wire develops to multifunction from simple electric power transfer, and according to different purposes, electric wire has been added some new characteristics, for example: fire-retardant, fire-resistant, low smoke and zero halogen, water-stop or the like.
Problems such as air pollution in the city are serious day by day on the other hand, after being mingled with the rainwater that pollutes and entering conductor coupling portion, water can permeate in the cable length direction along cable internal structure space, form hard and crisp oxide-film and produce etch pit in copper line surface easily, etch pit further forms oxide-film again after the corrosion, and so circulation finally causes broken string, cause cable to scrap, even electrical appliance is caused damage.The aerial insulated cable of at present common 10KV, 35KV broken string in various degree all can occur using 5-10, and the safe operation of powering to power transmission and distribution has brought serious threat.
Summary of the invention
The object of the present invention is to provide a kind of copper core watertight to make somebody a mere figurehead the protective cable manufacture method, by the cable that this kind method obtains, insulation property and corrosion resistance improve greatly, avoid the long-time broken string problem that causes of using.
In order to address the above problem, technical scheme of the present invention is such:
A kind of copper core watertight is maked somebody a mere figurehead the protective cable manufacture method, may further comprise the steps:
Conductor is heated to 110 ℃～160 ℃; When watertight type semiconductor and insulating barrier co-extrusion, the watertight type semiconductor is full of the space between the conductor bundle fully, forms water sealed layer; The watertight type semiconductor is lining around conductor, forms semi-conductive layer.
Further, described conductor is the copper cash twisted wire.
The invention provides the built on stilts protective cable manufacture method of a kind of copper core watertight,, effectively improved the insulation property and the corrosion resistance of cable by the cable that this kind method obtains, avoid the long-time broken string problem that causes of using, make this kind voltage cable grade height, the scope of application is wide, and security performance is good.
Description of drawings
Fig. 1 is the conductor bundle schematic diagram of one embodiment of the invention;
Fig. 2 is the structural representation of cable one embodiment of use method manufacturing of the present invention.
Embodiment
In order to make technological means of the present invention, creation characteristic, to reach purpose and effect is easy to understand,, further set forth the present invention below in conjunction with concrete diagram.
The present invention adopts presses opposite conductor structure with common aerial cable.The conductor structure of common aerial cable is a compact conductor, to reduce the conductor gap.And the built on stilts protective cable manufacture method of a kind of copper core watertight type of the present invention has adopted the non-shape conductor structure that presses.When producing, conductor also suitably increases the gap between the conductor bundle.
As shown in Figure 1, a kind of copper core watertight of the present invention is maked somebody a mere figurehead the protective cable manufacture method, may further comprise the steps: adopt the power frequency heater that the conductor bundle that conductor 1 forms is heated to 110 ℃～160 ℃; When watertight type semiconductor 2 and insulating barrier 3 co-extrusions, watertight type semiconductor 2 is full of the space that exists between the conductor bundle fully, forms water sealed layer, as shown in Figure 2.Watertight type semiconductor 2 is lining around conductor 1, forms semi-conductive layer.
Described conductor 1 is the hard copper wire twisted wire.Described watertight type semiconductor 2 is known technologies of persons skilled in the art, has crosslinkable, can be effectively under the effect of temperature and conductor bond together.On November 22nd, 2006 disclosed number of patent application be in the patent of ZL02129854, a kind of semiconductor watertigth composition is provided, and semi-conductive watertigth composition uses and to contain: contain base polymer 100 weight portions, water absorbent polymer 1～20 weight portion of cross-linked polyethylene and be resin combination that must composition as the acetylene carbon black of carbon black or furnace black 40～80 weight portions or as by product carbon 5～50 weight portions of carbon black.In patent text, disclose the sealant that carries out water-stop, contained 100 parts of main gels, 10～50 parts of tackifying resins, 1～3 part of vulcanizing agent, 1～5 part of compounding aid, 30～100 parts of fire retardants can also add filler.
By the built on stilts protective cable of copper core watertight that method of the present invention obtains, under the environment under air pollution and the rain drop erosion, the insulation property of cable and corrosion resistance are good, are applicable to the problem that is exposed to the outdoor broken string that sets up and be not easy to cause for a long time.The electric pressure height that the cable that method of the present invention is made is suitable for, the scope of application is wide, and security performance is good.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The protection range that the present invention requires is defined by appending claims and equivalent thereof.
Claims (2)
1. the built on stilts protective cable manufacture method of copper core watertight is characterized in that: may further comprise the steps: conductor is heated to 110 ℃～160 ℃; When watertight type semiconductor and insulating barrier co-extrusion, the watertight type semiconductor is full of the space between the conductor bundle fully, forms water sealed layer; The watertight type semiconductor is lining around conductor, forms semi-conductive layer.
2. a kind of copper core watertight according to claim 1 is maked somebody a mere figurehead the protective cable manufacture method, and it is characterized in that: described conductor is the copper cash twisted wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010119010 CN102194555A (en) | 2010-03-05 | 2010-03-05 | Method for manufacturing watertight overhead protective power cable with copper core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010119010 CN102194555A (en) | 2010-03-05 | 2010-03-05 | Method for manufacturing watertight overhead protective power cable with copper core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102194555A true CN102194555A (en) | 2011-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010119010 Pending CN102194555A (en) | 2010-03-05 | 2010-03-05 | Method for manufacturing watertight overhead protective power cable with copper core |
Country Status (1)
| Country | Link |
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| CN (1) | CN102194555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474162A (en) * | 2013-09-30 | 2013-12-25 | 上海南洋-藤仓电缆有限公司 | Watertight overhead protective cable |
| CN103474179A (en) * | 2013-09-30 | 2013-12-25 | 上海南洋-藤仓电缆有限公司 | Manufacturing device and manufacturing method for watertight overhead protective cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2741152Y (en) * | 2004-02-03 | 2005-11-16 | 罗会炳 | Water blocking flexible cable |
| CN1866413A (en) * | 2006-06-13 | 2006-11-22 | 山西天海泵业有限公司 | Waterproof aluminium electromagnetic wire manufacturing method |
| CN201374220Y (en) * | 2009-04-03 | 2009-12-30 | 特变电工(德阳)电缆股份有限公司 | Water blocking overhead insulated cable |
-
2010
- 2010-03-05 CN CN 201010119010 patent/CN102194555A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2741152Y (en) * | 2004-02-03 | 2005-11-16 | 罗会炳 | Water blocking flexible cable |
| CN1866413A (en) * | 2006-06-13 | 2006-11-22 | 山西天海泵业有限公司 | Waterproof aluminium electromagnetic wire manufacturing method |
| CN201374220Y (en) * | 2009-04-03 | 2009-12-30 | 特变电工(德阳)电缆股份有限公司 | Water blocking overhead insulated cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474162A (en) * | 2013-09-30 | 2013-12-25 | 上海南洋-藤仓电缆有限公司 | Watertight overhead protective cable |
| CN103474179A (en) * | 2013-09-30 | 2013-12-25 | 上海南洋-藤仓电缆有限公司 | Manufacturing device and manufacturing method for watertight overhead protective cable |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Hongfan Inventor after: Liu Danmin Inventor before: Shi Hongfan |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHI HONGFAN TO: SHI HONGFAN LIU DANMIN |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110921 |