CN1529321A - Rated voltage 0.6/1KV plastic-insulated water-proof power cable - Google Patents
Rated voltage 0.6/1KV plastic-insulated water-proof power cable Download PDFInfo
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- CN1529321A CN1529321A CNA2003101080414A CN200310108041A CN1529321A CN 1529321 A CN1529321 A CN 1529321A CN A2003101080414 A CNA2003101080414 A CN A2003101080414A CN 200310108041 A CN200310108041 A CN 200310108041A CN 1529321 A CN1529321 A CN 1529321A
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- watertight composition
- insulating barrier
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- power cable
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Abstract
In the power cable, waterproof layer (5) is added on inner wall of insulation layer (4); packed layer (6) of waterproofing powder is added between conductors (7). Waterproof layer (2) made by lapping waterproof strip is utilized to replace binding layer of non-woven fabrics in restrictive coating of current power cable. Packed layer (3) made from waterproofing rope is utilized to replace packing material of polypropylene layer in former core wire. High absorption resin material composed of copolymer of synthesized acrylate is adopted as waterproofing powder. Waterproofing rope made from banded type material composed of non-woven fabric of polyester fiber and high absorption material is adopted in packed layer. Lapping the said banded type material makes the said two water proof layers. Thus, the two packed layers prevent cable from intruded by water in longitudinally, and two water proof layers and two packed layers prevent cable in radial direction.
Description
Technical field
The present invention relates to a kind of cable that electric power is carried that is used for.The waterproof power cable line of the following voltage of specifically a kind of 1kV.
Background technology
The field of employment of power cable is to be laid in the cable trough mostly, directly is embedded in place moist in the soil.Cable contacts with water, and water is very big to the influence of cable, and is light then influence life-span of cable, heavy then electric current can occur and leak, even short circuit.Present used power cable is generally filled layer, insulating barrier and conductor by the polypropylene between restrictive coating, nonwoven fabrics belting layer, heart yearn and is formed.The nonwoven fabrics band does not have waterproof action.Polypropylene is filled the filling effect that layer mainly makes the cable rounding.Therefore, used common electric power cable waterproof poor performance.For the cable core that prevents moisture content intrusion cable causes the cable reduction in useful life, prevent electric current and leak or short circuit, in construction and installation, have to install additional anti-drainage facility or waterproof auxiliary accessory.These methods not only can not solve waterproof problem fully, but also exist the inconvenience of installing and using and keeping in repair, the also bigger increase of its mounting cost.In order to solve above-mentioned a series of problem, people are carrying out designing with great concentration and studying to waterproof power cable.
The innovation and creation content
The present invention's purpose is to provide a kind of water resistance good to society, long service life, and installation and maintenance are convenient, the waterproof power cable that cost is low.
The present invention is achieved in that its structure comprises the conductor in restrictive coating, the restrictive coating, every group of insulating barrier that conductor is outer.It is pasting the restrictive coating inwall, is a watertight composition between restrictive coating and insulating barrier.In this watertight composition, in the space between this watertight composition and the insulating layer of conductor waterproofing rope packed layer.Paste the insulating barrier inwall, between insulating barrier and conductor, be provided with watertight composition.Be provided with the water-proofing powder packed layer in the space in the watertight composition that is pasting the insulating barrier inwall, between the conductor.
Pasting the high hydroscopic resin material that the water-proofing powder packed layer in insulating barrier inwall, the watertight composition between insulating barrier and conductor, in the space between the conductor adopts a kind of acrylic acid synthesizing salt copolymer to form.Be attached in the watertight composition of restrictive coating inwall the strip material that the waterproofing rope packed layer in the space between this watertight composition and the insulating layer of conductor adopts non-woven fabric of polyester fiber and high-absorbent material to be composited.Pasting the restrictive coating inwall, the watertight composition between restrictive coating and insulating barrier is wrapped the forming of strip material that non-woven fabric of polyester fiber and high-absorbent material are composited.Pasting the insulating barrier inwall, the watertight composition between insulating barrier inwall and conductor is wrapped the forming of strip material that is composited by non-woven fabric of polyester fiber and high-absorbent material.
Because, filled water-proofing powder in the space between the conductor, watertight composition on the restrictive coating inwall is to have filled waterproofing rope in the space between interior, this watertight composition and the insulating layer of conductor, when water vertically infiltrates in cable from cable, material water-proof material can expand water is repelled outside cable, vertically plays good waterproof action at cable.Because, on the jacket inner wall and the watertight composition on the insulating barrier inwall the radially water resistance of cable is improved.Can make cable guarantee water resistance equally when sheath and insulating barrier damage, the two layers of packed layer that blocks water are radially having waterproof action equally.Therefore, the water resistance of power cable of the present invention improves greatly.
Description of drawings
Fig. 1 is the present invention's three core power cable sectional views;
Fig. 2 is existing three core power cable sectional views.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing.Comparison diagram 1 and Fig. 2, two technical schemes have jointly restrictive coating 1 and 1 ', conductor 7 and 7 ', wrap in the outer insulating barrier 4 and 4 of conductor group '.Band 2 among Fig. 2 ' be the nonwoven fabrics band, do not play waterproof action.Jacket inner wall of the present invention is a watertight composition 2, wrapped the forming of strip material (ready-made article is arranged on the market) that is composited by non-woven fabric of polyester fiber and high-absorbent material.Also add a watertight composition 5 on insulating barrier 4 inwalls and between the conductor 7.Same wrapped the forming of strip material that is composited by non-woven fabric of polyester fiber and high-absorbent material.There is not this watertight composition in the prior art.Watertight composition 2,5 of the present invention can be from radially preventing the water intrusion cable.When insulating barrier had damage, this two watertight composition can also prevent that sealing enters conductor.Prior art does not have other measure to prevent that sealing is from radially invading conductor except that restrictive coating 1 ' and insulating barrier 4 '.
The present invention is equipped with water-proofing powder packed layer 6 between conductor 7, this packed layer is the high hydroscopic resin material (ready-made article is arranged on the market) that adopts a kind of acrylic acid synthesizing salt copolymer to form.It between three cores waterproofing rope packed layer 3.The strip material that this layer also adopts non-woven fabric of polyester fiber and high-absorbent material to be composited.This two packed layer except that anti-sealing from radially invading the cable, mainly anti-sealing is vertically invaded cable from cable.3 of prior art ' fill layer for polypropylene mainly plays the filling effect of cable rounding, and conductor a 7 ' no water blocking layer is so existing cable is at vertical no waterproof action.
In sum, water resistance of the present invention is better than prior art greatly, has substantially solved the water inlet of power cable Problem in the service life of having improved power cable, has prevented that electric leakage and short circuit phenomenon from taking place.
Claims (5)
1, a kind of rated voltage 0.6/1kV plastic insulation waterproof power cable, comprise the conductor (7) in restrictive coating (1), the restrictive coating, every group of insulating barrier (4) that conductor is outer, it is characterized in that, pasting the restrictive coating inwall, is a watertight composition (2) between restrictive coating and insulating barrier; In this watertight composition, in the space between this watertight composition and the insulating layer of conductor waterproofing rope packed layer (3); Paste the insulating barrier inwall, between insulating barrier and conductor, be provided with watertight composition (5); In the watertight composition that is pasting the insulating barrier inwall, be provided with water-proofing powder packed layer (6) in the space between the conductor.
2, waterproof power cable as claimed in claim 1 is characterized in that, in the watertight composition that is pasting the insulating barrier inwall, and the high hydroscopic resin material that the water-proofing powder packed layer (6) in the space between the conductor adopts a kind of acrylic acid synthesizing salt copolymer to form.
3, waterproof power cable as claimed in claim 1, it is characterized in that, be attached in the watertight composition of restrictive coating inwall the strip material that the waterproofing rope packed layer (3) in the space between this watertight composition and the insulating layer of conductor adopts non-woven fabric of polyester fiber and high-absorbent material to be composited.
4, waterproof power cable as claimed in claim 1 is characterized in that, is pasting the restrictive coating inwall, and the watertight composition between restrictive coating and insulating barrier (2) is wrapped the forming of strip material that is composited by non-woven fabric of polyester fiber and high-absorbent material.
5, as arbitrary described waterproof power cable among the claim 1-4, it is characterized in that, pasting the insulating barrier inwall, the watertight composition between insulating barrier and conductor (5) is wrapped the forming of strip material that is composited by non-woven fabric of polyester fiber and high-absorbent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101080414A CN1529321A (en) | 2003-10-15 | 2003-10-15 | Rated voltage 0.6/1KV plastic-insulated water-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101080414A CN1529321A (en) | 2003-10-15 | 2003-10-15 | Rated voltage 0.6/1KV plastic-insulated water-proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1529321A true CN1529321A (en) | 2004-09-15 |
Family
ID=34304611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101080414A Pending CN1529321A (en) | 2003-10-15 | 2003-10-15 | Rated voltage 0.6/1KV plastic-insulated water-proof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1529321A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392769C (en) * | 2005-01-26 | 2008-06-04 | 上海电缆研究所 | Longitudinal watertightness cable/wire |
| CN102262932A (en) * | 2011-07-22 | 2011-11-30 | 江苏中煤电缆股份有限公司 | Waterproof rubber jacketed flexible cable special for water fountain |
| CN102766297A (en) * | 2012-07-27 | 2012-11-07 | 成都塑力电缆有限公司 | Novel waterproof cable material for extrusion |
| CN103915187A (en) * | 2014-03-10 | 2014-07-09 | 安徽省高沟电缆有限公司 | Low-smoke and halogen-free waterproof compensation coaxial cable resistant to drag |
| CN104103361A (en) * | 2013-04-10 | 2014-10-15 | 江苏远红电缆有限公司 | Novel waterproof power cable |
-
2003
- 2003-10-15 CN CNA2003101080414A patent/CN1529321A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392769C (en) * | 2005-01-26 | 2008-06-04 | 上海电缆研究所 | Longitudinal watertightness cable/wire |
| CN102262932A (en) * | 2011-07-22 | 2011-11-30 | 江苏中煤电缆股份有限公司 | Waterproof rubber jacketed flexible cable special for water fountain |
| CN102766297A (en) * | 2012-07-27 | 2012-11-07 | 成都塑力电缆有限公司 | Novel waterproof cable material for extrusion |
| CN104103361A (en) * | 2013-04-10 | 2014-10-15 | 江苏远红电缆有限公司 | Novel waterproof power cable |
| CN103915187A (en) * | 2014-03-10 | 2014-07-09 | 安徽省高沟电缆有限公司 | Low-smoke and halogen-free waterproof compensation coaxial cable resistant to drag |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |