CN103021550B - Circle aluminium conductor water repellent electric cable - Google Patents
Circle aluminium conductor water repellent electric cable Download PDFInfo
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- CN103021550B CN103021550B CN201210559721.7A CN201210559721A CN103021550B CN 103021550 B CN103021550 B CN 103021550B CN 201210559721 A CN201210559721 A CN 201210559721A CN 103021550 B CN103021550 B CN 103021550B
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- water
- blocking yarn
- water blocking
- heating
- semiconductive
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Abstract
The present invention has disclosed a kind of round aluminium conductor water repellent electric cable and preparation method thereof, and the construction of cable comprises heart yearn, water blocking yarn, one side insulation waterstop, the semiconductive binding strap that blocks water. Heart yearn is coated by Multilayer single insulation waterstop, and water blocking yarn is arranged on the skin of Multilayer single insulation waterstop. The semiconductive outermost layer of binding strap colligation at water blocking yarn and Multilayer single insulation waterstop that block water. Water blocking yarn, one side insulation waterstop, the semiconductive binding strap that blocks water is the one sandwich construction of common extrusion forming. Adopt technical scheme of the present invention, can effectively prevent cable infiltration, make conductor there is water stop function, and technique has been simple, easy to operate.
Description
Technical field
The present invention relates to a kind of water-proof cable structure, more particularly, relate to a kind of circle aluminium conductor and block waterCable.
Background technology
The safety in utilization of cable is a permanent topic of cable industry, the main body of security of cableNow following 2 points, the one, the difficult bending of cable, the structure of non-frangibility, the 2nd, the waterproof of cablePerformance.
At present user is more and more higher to 110kV and above high-tension cable quality requirement, except cable necessaryMeet beyond GB and IEC standard, user has also increased many additional requirements, as conductor water stop function,Once cable is subject to external force mechanical damage, conductor must comprehensive blocking water, and ensures that cable is when the shortestInterior Power resumption.
But common cable is greatly improved on bending performance at present, existing high-intensityCable, also has the cable of high flexibility. But it is satisfactory that the water resistance of cable does not reach all the timeStage, be the solution that those skilled in the art is seeking.
Summary of the invention
Object of the present invention aims to provide a kind of circle aluminium conductor water repellent electric cable, solves in prior art and depositsVarious deficiencies.
According to the present invention, a kind of circle aluminium conductor water repellent electric cable is provided, comprise heart yearn, water blocking yarn, one sideInsulation waterstop, the semiconductive binding strap that blocks water. Heart yearn is coated by Multilayer single insulation waterstop, blocks waterYarn is arranged on the skin of Multilayer single insulation waterstop. Semiconductive block water binding strap colligation at water blocking yarn andThe outermost layer of Multilayer single insulation waterstop. Water blocking yarn, one side insulation waterstop, semiconductive block water and tie upBand is the one sandwich construction of common extrusion forming.
According to one embodiment of the invention, water blocking yarn diameter is greater than 3.76mm.
According to one embodiment of the invention, 6 layers of one side insulation waterstop of heart yearn outer cladding, every one deck listThe diameter of face insulation waterstop is 3.76mm.
According to the present invention, a kind of manufacture craft of justifying aluminium conductor water repellent electric cable is also provided, comprise following stepRapid: heart yearn is carried out to heating pretreatment; The outer coated water blocking yarn of heart yearn after heating pretreatment; ?The outer coated one side insulation waterstop of water blocking yarn, blocks water at the outer coated semiconductive of one side insulation waterstopBinding strap; By water blocking yarn, one side insulation waterstop, the semiconductive common extrusion forming of binding strap that blocks water.
According to one embodiment of the invention, heart yearn first heats and follows arranging before one side insulation waterstopRing is processed, and cycle-index is 3 times.
According to one embodiment of the invention, the heat time of Heating Cyclic processing is 8 hours, when coolingBetween be 16 hours.
According to one embodiment of the invention, keeping temperature in last 1 hour of the heat time is 95 DEG C.
Adopt technical scheme of the present invention, can effectively prevent cable infiltration, made conductor there is resistanceWater function, and technique is simple, easy to operate.
Brief description of the drawings
In the present invention, identical Reference numeral represents identical feature all the time, wherein:
Fig. 1 is the structural representation of the present invention's circle aluminium conductor water repellent electric cable;
Fig. 2 is the resolution chart that blocks water of the present invention's circle aluminium conductor water repellent electric cable.
Detailed description of the invention
Further illustrate technical scheme of the present invention below in conjunction with drawings and Examples.
With reference to Fig. 1, round aluminium conductor water repellent electric cable 10 of the present invention is another in one end of common heart yearn 11Outer increase 3-tier architecture, thus reach the object that waterproof blocks water. This 3-tier architecture be respectively water blocking yarn 12,One side insulation waterstop 14, the semiconductive binding strap 13 that blocks water.
As shown in Figure 1, heart yearn 11 is coated by Multilayer single insulation waterstop 14, and one side insulation blocks waterWith 14 block water facing to the outside of cable. Here adopt the insulation waterstop of one side just can reach thisThe object of invention, but the present invention is not limited to this, also can use two-sided insulation waterstop, onlyThe insulation waterstop that is one side is more saved from cost, and can play and two-sided insulation waterstopIdentical functional effect.
Water blocking yarn 12 is arranged on the skin of Multilayer single insulation waterstop 14, at water blocking yarn 12 and manyThe outermost outermost layer of layer one side insulation waterstop 14, uses semiconductive binding strap 13 colligations that block waterFixing.
The feature of this structure of the present invention is water blocking yarn 12, one side insulation waterstop 14, semiconductiveThe one sandwich construction that the binding strap 13 that blocks water is common extrusion forming, that is to say, although these three layers areStructure independently separately, but according to the preparation method of round aluminium conductor water repellent electric cable 10 of the present invention, these are three years oldLayer structure is to fit tightly after completing, and cannot peel off layer by layer. The advantage of this structure isIts compactness, thereby the effect that can have stronger anti-sealing to permeate than the structure of common general laminating.
As a kind of preferred embodiment of the present invention, the diameter of water blocking yarn 12 obviously must be greater than3.76mm, in general that one deck is set is just much of that for 12 of water blocking yarns, but one side insulation waterstop 14Multilayer generally can be set, and can be 6 layers, 12 layers, 18 layers or 24 layers, etc., depending on actual workSkill situation and the environment that blocks water decide. Because one side insulation waterstop 14 is very thin, although therefore stackMultilayer, the diameter of every one deck one side insulation waterstop 14 also can be similar to and regard 3.76mm as.
The present invention also discloses a kind of preparation method of justifying aluminium conductor water repellent electric cable.
From structure above, heart yearn 11 can not be directly and one side insulation waterstop 14, water blocking yarn12 and the semiconductive binding strap 13 that blocks water be set together, before apparatus of the present invention assembling, first wantHeart yearn 11 is carried out to heating pretreatment, is 3 Heating Cyclic, to have guaranteed heart yearn 11 specificallyExperienced appropriate thermal expansion, its step is as follows:
1. each Heating Cyclic is by heating in 8 hours and 16 hours cooling compositions. During heating, adoptReach 95 DEG C by electric current heating core wire 11. In last 1 hour of the period of heating, keep this temperature-resistant.
2. the outer coated water blocking yarn 12 of the heart yearn 11 after heating pretreatment; Outer coated at water blocking yarnOne side insulation waterstop 14, at the outer coated semiconductive of one side insulation waterstop 14 binding strap 13 that blocks water.
3. the binding strap 13 that water blocking yarn 12, one side insulation waterstop 14, semiconductive blocked water squeezes jointlyMake type.
As shown in Figure 2, can round aluminium conductor water repellent electric cable of the present invention be described with the test that blocks water10 effect.
1. test product, after pretreatment, is installed a water-flowing device and is placed on cable one section.
2. continuous 10 days (10 × 24H) hydraulic pressure remains 0.1MPa (simulation depth of water 10m).
Test is undertaken by IEC60840 standard-required, after the pretreatment by three Heating Cyclic, connectsWithin continuous 10 days, (10 × 24H) hydraulic pressure remains on 0.1MPa (the simulation 10m depth of water), through dissecting conductorOnly 0.3m of infiltration length, and according to the requirement of IEC60840:2011 standard, water permeates in conductorLength can reach 3m, and visible nargin is big.
Beneficial effect of the present invention is:
1. justify and place water blocking yarn, insulation waterstop, the semiconductive binding strap that blocks water, conductor tool in aluminium conductorHave water stop function, technique is simple, easy to operate;
2. design specialized is made the instrument of conductor waterproofing device, easy to operate;
3. an end cable hydraulic pressure 0.1Mpa, water is only 0.3m of seepage distance in conductor.
Those of ordinary skill in the art will be appreciated that, above description is only the present inventionOne or more embodiments in numerous embodiment, and not use limitation of the invention. Any rightIn equalization variation, the modification of the above embodiment and be equal to the technical schemes such as alternative, as long as meetConnotation scope of the present invention, all will drop in the scope that claims of the present invention protect.
Claims (1)
1. a preparation method of justifying aluminium conductor water repellent electric cable, is characterized in that, comprises the following steps:
Heart yearn is carried out to heating pretreatment, is 3 Heating Cyclic specifically, to guarantee that heart yearnGo through thermal expansion, its step is as follows: each Heating Cyclic is by cooling group of heating in 8 hours and 16 hoursBecome, during heating, adopt current flow heats heart yearn to reach 95 DEG C, in last 1 hour of the period of heatingKeep this temperature-resistant;
The outer coated water blocking yarn of heart yearn after heating pretreatment;
At the outer coated one side insulation waterstop of water blocking yarn, outer coated at described one side insulation waterstopThe semiconductive binding strap that blocks water;
By described water blocking yarn, one side insulation waterstop, the semiconductive common extrusion forming of binding strap that blocks water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559721.7A CN103021550B (en) | 2012-12-20 | 2012-12-20 | Circle aluminium conductor water repellent electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210559721.7A CN103021550B (en) | 2012-12-20 | 2012-12-20 | Circle aluminium conductor water repellent electric cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103021550A CN103021550A (en) | 2013-04-03 |
| CN103021550B true CN103021550B (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210559721.7A Expired - Fee Related CN103021550B (en) | 2012-12-20 | 2012-12-20 | Circle aluminium conductor water repellent electric cable |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976918A (en) * | 2015-03-16 | 2016-09-28 | 沈群华 | Heterotype filling rope for power cable, manufacture method, and manufacture method for filling rope for optical cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529355Y (en) * | 2001-12-26 | 2003-01-01 | 山东鲁能泰山电缆股份有限公司 | All-round water-proof cross-linked cable |
| CN201204087Y (en) * | 2008-06-02 | 2009-03-04 | 特变电工山东鲁能泰山电缆有限公司 | Water-resistance type aluminum segmentation conductor for power cable |
| CN201698821U (en) * | 2010-04-15 | 2011-01-05 | 无锡市新阳光电缆有限公司 | Water-blocking power cable |
| CN202615911U (en) * | 2012-06-04 | 2012-12-19 | 上海上缆藤仓电缆有限公司 | Water-resistant crosslinked cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737788B (en) * | 2012-07-18 | 2015-10-21 | 成都塑力电缆有限公司 | A kind of many conductor single lines heating rotates manufacture method |
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2012
- 2012-12-20 CN CN201210559721.7A patent/CN103021550B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529355Y (en) * | 2001-12-26 | 2003-01-01 | 山东鲁能泰山电缆股份有限公司 | All-round water-proof cross-linked cable |
| CN201204087Y (en) * | 2008-06-02 | 2009-03-04 | 特变电工山东鲁能泰山电缆有限公司 | Water-resistance type aluminum segmentation conductor for power cable |
| CN201698821U (en) * | 2010-04-15 | 2011-01-05 | 无锡市新阳光电缆有限公司 | Water-blocking power cable |
| CN202615911U (en) * | 2012-06-04 | 2012-12-19 | 上海上缆藤仓电缆有限公司 | Water-resistant crosslinked cable |
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| Publication number | Publication date |
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| CN103021550A (en) | 2013-04-03 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20191220 |