CN105321620A - 500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement - Google Patents
500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement Download PDFInfo
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- CN105321620A CN105321620A CN201510691412.9A CN201510691412A CN105321620A CN 105321620 A CN105321620 A CN 105321620A CN 201510691412 A CN201510691412 A CN 201510691412A CN 105321620 A CN105321620 A CN 105321620A
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Abstract
The invention discloses a 500kV crosslinked polyethylene insulated fiber power cable for a temperature measurement. The 500kV crosslinked polyethylene insulated fiber power cable comprises a conductor and an optical unit assembly, wherein the assembly is formed by putting an optical unit at the centers of conductor elements; and a wrapped semi-conductive layer, an extruded semi-conductive layer, a crosslinked polyethylene insulating layer, an extruded semi-conductive outer shielding layer, a wrapped semi-conductive water-blocking buffer layer, an corrugated aluminum protection layer, a nonmetal sheath layer, an extruded semi-conductive layer are sequentially arranged outside the assembly. According to the 500kV crosslinked polyethylene insulated fiber power cable for the temperature measurement, the optical unit is arranged at the center of the cable and is simultaneously protected by the structures of a steel loose tube, a metal monofilament for the conductor and the like, so that the optical unit obtains a relatively good mechanical protection; subsequent manufacturing procedures of the cable and a delivery test are ensured; and the condition that an optical fiber is not damaged in installation at the construction site is ensured.
Description
Technical field
The invention belongs to power cable, optical communication field, be specifically related to the crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of a kind of 500kV.
Background technology
Along with the fast development of China's economy and the quick growth of city need for electricity, crosslinked cable due to its excellent electrical properties, working temperature is high, transmission capacity is large, safeguard the advantage such as simple and be widely used, 500kV crosslinked polyethylene (XLPE) insulated cable is more and more for urban distribution network and large industrial enterprise.
For ensureing the stability of power supply, when running 500kVXLPE insulated power cable, each layer temperature monitoring is very necessary, fibre optic temperature sensor has started to use as a new technology at home to be promoted, by optical fiber measurement insulated outer surface, conductor real time temperature can be calculated, and without the need to considering the environmental impact of Exterior cable.For the cable line laying circumstance complication, monitoring cable conductor temperature can also be passed through, guidance is provided for regulating and controlling current-carrying capacity of cable in time, cable is made to play conveying capacity to greatest extent, cable can be avoided again to cause damage because transshipping, and this design and running for cable line has great importance.
Summary of the invention
The object of this invention is to provide the crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of 500kV that a kind of smooth unit temp sensing function operational reliability is high.
The crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of a kind of 500kV of the present invention, comprises conductor, at outer wrapped first semi-conductive layer continuously of conductor and extrude the second semi-conductive layer; Extrude crosslinked polyetylene insulated layer, semiconductive outer shielding layer outward successively at the second semi-conductive layer, then at semiconductive outer shielding layer outer wrapped semiconductive water-blocking buffer layer, wrinkle alibate, non metallic sheath layer successively, outermost layer extrudes the 3rd semiconductive; Described conductor bosom is provided with light unit combination body, and this light unit combination body is made up of a temperature-measuring optical fiber coated in steel Loose tube; Between steel Loose tube and temperature-measuring optical fiber, fill cable cream, temperature-measuring optical fiber excess length control is between 4 ‰ to 6 ‰, and steel Loose tube thickness is not less than 0.2mm.
Described conductor is combined by the sector conductor stock block that five block sizes are identical.
Beneficial effect of the present invention is:
The present invention is putting into cable conductor temperature-measuring optical fiber, and energy Measurement accuracy cable conductor temperature, meets the requirement to whole cable line running status automatic monitoring; There is in cable conductor the firm space of placing optical fiber; In the forming process of cable conductor, protect light unit by structures such as steel Loose tube, conductor metal monofilament simultaneously, make light unit obtain the protection of better mechanical performance, ensure each procedure, the delivery test of cable follow-up manufacture and to lay middle optical fiber at the construction field (site) not damaged; When carrying out adjacent two sections of cables connection operation in annex job site, the optical fiber in cable conductor space can freely move, and cable conductor and optical fiber can connect relatively easily, and the serviceability of optical fiber is unaffected.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of a kind of 500kV of the present invention, comprises conductor, and described conductor is combined by the sector conductor stock block 3 that five block sizes are identical; At outer wrapped first semi-conductive layer 4 continuously of conductor and extrude the second semi-conductive layer 5; Crosslinked polyetylene insulated layer 6, semiconductive outer shielding layer 7 is extruded successively outside the second semi-conductive layer 5, again at semiconductive outer shielding layer 7 outer wrapped semiconductive water-blocking buffer layer 8, wrinkle alibate 9, non metallic sheath layer 10 successively, outermost layer extrudes the 3rd semiconductive 11; Described conductor bosom is provided with light unit combination body, and this light unit combination body is made up of a temperature-measuring optical fiber 1 coated in steel Loose tube 2, and energy Measurement accuracy cable conductor temperature, meets the requirement to whole cable line running status automatic monitoring; ; Cable cream is filled between steel Loose tube 2 and temperature-measuring optical fiber 1; temperature-measuring optical fiber excess length control is between 4 ‰ to 6 ‰; steel Loose tube thickness is not less than 0.2mm; protect light unit by structures such as steel Loose tube, conductor metal monofilament simultaneously; make light unit obtain the protection of better mechanical performance, ensure each procedure, the delivery test of cable follow-up manufacture and to lay middle optical fiber at the construction field (site) not damaged.
The invention provides the crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of a kind of 500kV; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. the crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of 500kV, is characterized in that: comprise conductor, outer wrapped first semi-conductive layer (4) continuously of conductor and extrude the second semi-conductive layer (5); Crosslinked polyetylene insulated layer (6), semiconductive outer shielding layer (7) is extruded outward successively at the second semi-conductive layer (5), again at semiconductive outer shielding layer (7) wrapped semiconductive water-blocking buffer layer (8), wrinkle alibate (9), non metallic sheath layer (10) successively outward, outermost layer extrudes the 3rd semiconductive (11); Described conductor bosom is provided with light unit combination body, and this light unit combination body is made up of a coated temperature-measuring optical fiber (1) in steel Loose tube (2); Between steel Loose tube (2) and temperature-measuring optical fiber (1), fill cable cream, temperature-measuring optical fiber excess length control is between 4 ‰ to 6 ‰, and steel Loose tube thickness is not less than 0.2mm.
2. the crosslinked polyetylene insulated optical-fiber temperature-measurinpower power cable of 500kV according to claim 1, is characterized in that: described conductor is combined by the sector conductor stock block (3) that five block sizes are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691412.9A CN105321620A (en) | 2015-10-23 | 2015-10-23 | 500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510691412.9A CN105321620A (en) | 2015-10-23 | 2015-10-23 | 500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105321620A true CN105321620A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510691412.9A Pending CN105321620A (en) | 2015-10-23 | 2015-10-23 | 500kV crosslinked polyethylene insulated optical fiber power cable for temperature measurement |
Country Status (1)
| Country | Link |
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| CN (1) | CN105321620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976920A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Multi-core self-cooling high-strength optical fiber composite cable |
| CN106409427A (en) * | 2016-10-28 | 2017-02-15 | 武汉理工大学 | Grating-array-fiber-included composite intelligent cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620897A (en) * | 2009-08-10 | 2010-01-06 | 杭州电缆有限公司 | Crosslinked cable for intelligent power network |
| CN101714433A (en) * | 2009-12-29 | 2010-05-26 | 沈阳古河电缆有限公司 | Method for twisting fibers in center of composite power cable conductor |
| CN202058497U (en) * | 2011-05-18 | 2011-11-30 | 无锡市曙光电缆有限公司 | Cross-linked polyethylene insulation power cable for dividing conductor structure |
| CN203134453U (en) * | 2013-03-14 | 2013-08-14 | 宜昌联邦电缆有限公司 | Cross-linked polyethylene insulated anti-termite single-core power cable used for 500kV alternating-current transmission |
| CN204178794U (en) * | 2014-10-13 | 2015-02-25 | 杭州电缆股份有限公司 | A kind of 500kV cable for measuring temperature |
| CN205069203U (en) * | 2015-10-23 | 2016-03-02 | 无锡市长城电线电缆有限公司 | Insulating optic fibre temperature measurement power cable of 500kV crosslinked polyethylene |
-
2015
- 2015-10-23 CN CN201510691412.9A patent/CN105321620A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620897A (en) * | 2009-08-10 | 2010-01-06 | 杭州电缆有限公司 | Crosslinked cable for intelligent power network |
| CN101714433A (en) * | 2009-12-29 | 2010-05-26 | 沈阳古河电缆有限公司 | Method for twisting fibers in center of composite power cable conductor |
| CN202058497U (en) * | 2011-05-18 | 2011-11-30 | 无锡市曙光电缆有限公司 | Cross-linked polyethylene insulation power cable for dividing conductor structure |
| CN203134453U (en) * | 2013-03-14 | 2013-08-14 | 宜昌联邦电缆有限公司 | Cross-linked polyethylene insulated anti-termite single-core power cable used for 500kV alternating-current transmission |
| CN204178794U (en) * | 2014-10-13 | 2015-02-25 | 杭州电缆股份有限公司 | A kind of 500kV cable for measuring temperature |
| CN205069203U (en) * | 2015-10-23 | 2016-03-02 | 无锡市长城电线电缆有限公司 | Insulating optic fibre temperature measurement power cable of 500kV crosslinked polyethylene |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976920A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Multi-core self-cooling high-strength optical fiber composite cable |
| CN106409427A (en) * | 2016-10-28 | 2017-02-15 | 武汉理工大学 | Grating-array-fiber-included composite intelligent cable |
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Application publication date: 20160210 |