CN204178794U - A kind of 500kV cable for measuring temperature - Google Patents
A kind of 500kV cable for measuring temperature Download PDFInfo
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- CN204178794U CN204178794U CN201420588371.1U CN201420588371U CN204178794U CN 204178794 U CN204178794 U CN 204178794U CN 201420588371 U CN201420588371 U CN 201420588371U CN 204178794 U CN204178794 U CN 204178794U
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Abstract
The utility model discloses a kind of 500kV cable for measuring temperature, aim to provide a kind of under the prerequisite of various aspects of performance not affecting extra-high-tension cable, be implanted into temperature measuring optical cable monitoring cable line temperature distribution situation in real time at extra-high-tension cable; And when cable occurs that local temperature is abnormal and raises, can also identify cause cable temperature abnormal raise lead because being the 500kV cable for measuring temperature coming from where.It comprises milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, metallic sheath, nonmetal oversheath and outer semiconducting layer; Milliken conductor comprises the center sleeve and some sector elements uniform around center sleeve circumference that are positioned at centre, is provided with interior temperature measuring optical cable in described center sleeve; At least three are provided with in circumferential uniform middle temperature measuring optical cable between semi-conductive buffer water blocking layer and metallic sheath; Be provided with outer temperature measuring optical cable outside outer semiconducting layer, and outer temperature measuring optical cable is fitted on outer semiconducting layer outer surface.
Description
Technical field
The utility model relates to a kind of cable, is specifically related to a kind of 500kV cable for measuring temperature.
Background technology
Cable security run reliably be more and more subject to society concern, especially the safe and reliable operation of EHV XLPE power cable always time field of power transmission the most important thing; Such as 500kV ultra-high voltage cross-linking power cable line, is in operation once there is the unexpected loss of power accident, by the huge economic loss of generation and negative social effect.Conventional ultra high piezoelectric forces cable, in use, carries out periodic inspection system usually, even if but still can not find line security hidden danger the very first time like this, deal with in time, rational adjustment of load can not be done according to circuit actual conditions.
In order to improve above-mentioned deficiency, some inventors add temperature measuring optical cable in cable at present, carry out real-time monitoring cable line temperature distribution situation.Such as, China Patent Publication No. CN103531275A, publication date on January 22nd, 2014, the name of innovation and creation is called the built-in temperature measuring optical cable of a kind of intelligent cable and connecting method thereof, and its temperature measuring optical cable is placed between the water blocking tape layer of intelligent cable with tile mode.Although the cable of this application case is provided with temperature measuring optical cable can monitoring cable line temperature distribution situation in real time, it has the following disadvantages:
One, the temperature measuring optical cable of this application case is placed between water blocking tape layer, and this not only makes the around-packing technology difficulty of the water blocking tape layer of cable in wrapped process improve greatly, and easily causes the lapping of water blocking tape layer to reduce, and affects the water resistance of cable.
They are two years old, although the temperature measuring optical cable of application case can monitoring cable line temperature distribution situation in real time, but when cable occurs that local temperature raises extremely, its be difficult to differentiate cause cable temperature abnormal raise lead because being come from where (being cable inside or Exterior cable, is the where of cable inside).
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of under the prerequisite of various aspects of performance not affecting 500kV extra-high-tension cable, is implanted into temperature measuring optical cable monitoring cable line temperature distribution situation in real time at 500kV extra-high-tension cable; And when cable occurs that local temperature is abnormal and raises, can also identify cause cable temperature abnormal raise lead because being the 500kV cable for measuring temperature coming from where.
The technical solution of the utility model is:
A kind of 500kV cable for measuring temperature, comprises milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, metallic sheath, nonmetal oversheath and outer semiconducting layer, and milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, metallic sheath, nonmetal oversheath and outer semiconducting layer from-inner-to-outer distribute successively; Described milliken conductor comprises the center sleeve and some sector elements uniform around center sleeve circumference that are positioned at centre, is provided with interior temperature measuring optical cable in described center sleeve; At least three are provided with in circumferential uniform middle temperature measuring optical cable between described semi-conductive buffer water blocking layer and metallic sheath; Be provided with outer temperature measuring optical cable outside described outer semiconducting layer, and outer temperature measuring optical cable is fitted on outer semiconducting layer outer surface.
The interior temperature measuring optical cable of this programme is positioned at center sleeve, and center sleeve is positioned at the center of milliken conductor; Middle temperature measuring optical cable is between semi-conductive buffer water blocking layer and metallic sheath; Like this, the implantation of temperature measuring optical cable and middle temperature measuring optical cable can not affect the round and smooth degree of conductor shield inner surface and insulation screen outer surface, also can not affect the performance of semi-conductive buffer water blocking layer.
The interior temperature measuring optical cable of this programme can be monitored in real time to the profiling temperatures of each sector element of milliken conductor, middle temperature measuring optical cable can be monitored in real time to the profiling temperatures between the semi-conductive buffer water blocking layer in cable and metallic sheath, and outer temperature measuring optical cable can be monitored in real time to the profiling temperatures of cable outer surface; Thus when cable occurs that local temperature is abnormal and raises, can clearly identify cause cable temperature abnormal raise lead because coming from cable inside or Exterior cable, and be the where coming from cable inside, be conducive to accident analysis.
As preferably, outer temperature measuring optical cable from-inner-to-outer comprises optical fiber successively, stainless-steel seamless pipe and PVC sheath.Stainless-steel seamless pipe in the outer temperature measuring optical cable of this programme can not soaked by rainwater by the optical fiber in the outer temperature measuring optical cable of available protecting, and is not destroyed.
As preferably, middle temperature measuring optical cable from-inner-to-outer comprises optical fiber, stainless steel flexible hose successively, Kevlar layer, stainless steel braided wires and PVC sheath.The middle temperature measuring optical cable of this programme has good tension, compressive property, and it is positioned at metallic sheath (not needing the high protective coat of outer temperature measuring optical cable), and in can effectively ensureing, temperature measuring optical cable is not destroyed.
As preferably, interior temperature measuring optical cable from-inner-to-outer comprises optical fiber successively, high temperature resistant sleeve pipe, Kevlar layer and high temperature resistant sheath.Interior temperature measuring optical cable itself is positioned at center sleeve, and it is this destruction not easily, but it needs good temperature-resistance characteristic, and thus the high temperature resistant sleeve pipe of interior temperature measuring optical cable of this programme and high temperature resistant sheath protect the optical fiber of interior temperature measuring optical cable.
As preferably, the quantity of outer temperature measuring optical cable is four, and four outer temperature measuring optical cable circumferences are uniform, and outer temperature measuring optical cable and middle temperature measuring optical cable are in staggered distribution.
As preferably, center sleeve is aluminium alloy sleeve pipe.Aluminium alloy sleeve pipe not only has good heat conductivility, and heat can conduct and cause interior temperature measuring optical cable place by fast; And aluminum alloy sleeve pipe has good electric conductivity, as the conductor of cable, the conductance of cable can be improved.
As preferably, in middle temperature measuring optical cable, be provided with 1 or 2 optical fiber.
As preferably, metallic sheath is corrugated aluminum sheath.
The beneficial effects of the utility model are: under the prerequisite of various aspects of performance not affecting 500kV extra-high-tension cable, are implanted into temperature measuring optical cable monitoring cable line temperature distribution situation in real time at 500kV extra-high-tension cable; And when cable occurs that local temperature is abnormal and raises, can also identify cause cable temperature abnormal raise lead because being come from where, be conducive to accident analysis.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
In figure: interior temperature measuring optical cable 1, center sleeve 2, milliken conductor 3, conductor shield 4, insulating barrier 5, insulation screen 6, semi-conductive buffer water blocking layer 7, metallic sheath 8, nonmetal oversheath 9, outer semiconducting layer 10, middle temperature measuring optical cable 11, outer temperature measuring optical cable 12.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As shown in Figure 1, a kind of 500kV cable for measuring temperature comprises milliken conductor 3, conductor shield 4, insulating barrier 5, insulation screen 6, semi-conductive buffer water blocking layer 7, metallic sheath 8, nonmetal oversheath 9 and outer semiconducting layer 10; And milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, metallic sheath, nonmetal oversheath and outer semiconducting layer from-inner-to-outer distribute successively.Metallic sheath is corrugated aluminum sheath.Milliken conductor comprises the center sleeve 2 and some sector elements uniform around center sleeve circumference that are positioned at centre.Center sleeve is aluminium alloy sleeve pipe.
Interior temperature measuring optical cable 1 is provided with in center sleeve.Interior temperature measuring optical cable from-inner-to-outer comprises optical fiber successively, high temperature resistant sleeve pipe, Kevlar layer and high temperature resistant sheath.
Four are provided with in circumferential uniform middle temperature measuring optical cable 11 between semi-conductive buffer water blocking layer 7 and metallic sheath 8.Middle temperature measuring optical cable from-inner-to-outer comprises optical fiber, stainless steel flexible hose successively, Kevlar layer, stainless steel braided wires and PVC sheath.1 or 2 optical fiber are provided with in middle temperature measuring optical cable.
Be provided with outer temperature measuring optical cable 12 outside outer semiconducting layer, and outer temperature measuring optical cable is fitted on outer semiconducting layer outer surface.The quantity of outer temperature measuring optical cable is four, and four outer temperature measuring optical cable circumferences are uniform, and outer temperature measuring optical cable and middle temperature measuring optical cable are in staggered distribution.Outer temperature measuring optical cable from-inner-to-outer comprises optical fiber successively, stainless-steel seamless pipe and PVC sheath.
The utility model is monitored cable temperature distribution situation in real time by interior, domestic and abroad temperature measuring optical cable; When cable occurs that local temperature raises extremely, if the temperature of outer temperature measuring optical cable is far above the temperature of interior, middle temperature measuring optical cable, then illustrate cause cable temperature abnormal raise lead because being come from Exterior cable, and can by the highest temperature measuring optical cable of temperature in outer temperature measuring optical cable, judge to lead because of particular location; If the temperature of interior, middle temperature measuring optical cable is higher than the temperature of outer temperature measuring optical cable, then illustrate cause cable temperature abnormal raise lead because being come from cable inside, and can by the highest temperature measuring optical cable of temperature in interior, middle temperature measuring optical cable, judge to lead because of particular location; Thus when cable occurs that local temperature is abnormal and raises, can clearly identify cause cable temperature abnormal raise lead because coming from cable inside or Exterior cable, and be the where coming from cable inside, be conducive to accident analysis.
Claims (8)
1. a 500kV cable for measuring temperature, is characterized in that, comprises milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, metallic sheath, nonmetal oversheath and outer semiconducting layer; And milliken conductor, conductor shield, insulating barrier, insulation screen, semi-conductive buffer water blocking layer, metallic sheath, nonmetal oversheath and outer semiconducting layer from-inner-to-outer distribute successively; Described milliken conductor comprises the center sleeve and some sector elements uniform around center sleeve circumference that are positioned at centre, is provided with interior temperature measuring optical cable in described center sleeve; At least three are provided with in circumferential uniform middle temperature measuring optical cable between described semi-conductive buffer water blocking layer and metallic sheath; Be provided with outer temperature measuring optical cable outside described outer semiconducting layer, and outer temperature measuring optical cable is fitted on outer semiconducting layer outer surface.
2. a kind of 500kV cable for measuring temperature according to claim 1, is characterized in that, described outer temperature measuring optical cable from-inner-to-outer comprises optical fiber, stainless-steel seamless pipe and PVC sheath successively.
3. a kind of 500kV cable for measuring temperature according to claim 1, is characterized in that, described middle temperature measuring optical cable from-inner-to-outer comprises optical fiber, stainless steel flexible hose, Kevlar layer, stainless steel braided wires and PVC sheath successively.
4. a kind of 500kV cable for measuring temperature according to claim 1 or 2 or 3, is characterized in that, described interior temperature measuring optical cable from-inner-to-outer comprises optical fiber, high temperature resistant sleeve pipe successively, Kevlar layer and high temperature resistant sheath.
5. a kind of 500kV cable for measuring temperature according to claim 1 or 2 or 3, is characterized in that, described center sleeve is aluminium alloy sleeve pipe.
6. a kind of 500kV cable for measuring temperature according to claim 1 or 2 or 3, is characterized in that, the quantity of described outer temperature measuring optical cable is four, and four outer temperature measuring optical cable circumferences are uniform, and outer temperature measuring optical cable and middle temperature measuring optical cable are in staggered distribution.
7. a kind of 500kV cable for measuring temperature according to claim 1 or 2 or 3, is characterized in that, is provided with 1 or 2 optical fiber in described middle temperature measuring optical cable.
8. a kind of 500kV cable for measuring temperature according to claim 1 or 2 or 3, is characterized in that, described metallic sheath is corrugated aluminum sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588371.1U CN204178794U (en) | 2014-10-13 | 2014-10-13 | A kind of 500kV cable for measuring temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588371.1U CN204178794U (en) | 2014-10-13 | 2014-10-13 | A kind of 500kV cable for measuring temperature |
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| Publication Number | Publication Date |
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| CN204178794U true CN204178794U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420588371.1U Active CN204178794U (en) | 2014-10-13 | 2014-10-13 | A kind of 500kV cable for measuring temperature |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321620A (en) * | 2015-10-23 | 2016-02-10 | 无锡市长城电线电缆有限公司 | 500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement |
| CN105652399A (en) * | 2016-03-18 | 2016-06-08 | 安徽中电八所光电通信技术发展有限公司 | De-icing type OPGW cable with temperature sensing function |
| CN107464608A (en) * | 2017-09-18 | 2017-12-12 | 浙江华普电缆有限公司 | A kind of special-shaped photoelectric compound cable |
| CN110767360A (en) * | 2019-11-19 | 2020-02-07 | 重庆科力线缆股份有限公司 | Flame-retardant fire-fighting low-smoke halogen-free irradiation cable |
-
2014
- 2014-10-13 CN CN201420588371.1U patent/CN204178794U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321620A (en) * | 2015-10-23 | 2016-02-10 | 无锡市长城电线电缆有限公司 | 500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement |
| CN105652399A (en) * | 2016-03-18 | 2016-06-08 | 安徽中电八所光电通信技术发展有限公司 | De-icing type OPGW cable with temperature sensing function |
| CN107464608A (en) * | 2017-09-18 | 2017-12-12 | 浙江华普电缆有限公司 | A kind of special-shaped photoelectric compound cable |
| CN110767360A (en) * | 2019-11-19 | 2020-02-07 | 重庆科力线缆股份有限公司 | Flame-retardant fire-fighting low-smoke halogen-free irradiation cable |
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