CN106992035A - A kind of on-line temperature monitoring optical fiber composite high-voltage cable - Google Patents
A kind of on-line temperature monitoring optical fiber composite high-voltage cable Download PDFInfo
- Publication number
- CN106992035A CN106992035A CN201710315798.2A CN201710315798A CN106992035A CN 106992035 A CN106992035 A CN 106992035A CN 201710315798 A CN201710315798 A CN 201710315798A CN 106992035 A CN106992035 A CN 106992035A
- Authority
- CN
- China
- Prior art keywords
- semiconductive
- optical fiber
- cable
- semi
- light unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/186—Sheaths comprising longitudinal lapped non-metallic layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/021—Features relating to screening tape per se
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/028—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients with screen grounding means, e.g. drain wires
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of on-line temperature monitoring optical fiber composite high-voltage cable, cable core including being extruded with insulation screen, additionally include light unit and some semiconductive bars, light unit and some semiconductive bars are close to for a circumference, and be spirally wound on insulation screen, thermometric layer is formed, outer is surrounded with outside Semi-conductive buffer band, Semi-conductive buffer band of thermometric layer is sequentially provided with metallic shield set, nonmetallic set and conductive layer.Light unit and semiconductive bar circumference are wrapped on insulation screen by the present invention, and outsourcing Semi-conductive buffer band, metallic shield set, nonmetallic set and conductive layer, while cable instantaneous temperature is real-time and accurately reacted, ensure the good mechanical performance of cable, not by magnetic interference, it is independent of each other with optical fiber monitoring, drastically increases the service life of cable.
Description
Technical field
The present invention relates to a kind of high-tension cable, more particularly, to a kind of on-line temperature monitoring optical fiber composite high-voltage cable.
Background technology
Cable operating temperature is too high, and insulating materials aging is speeded up, and cable life will shorten, or even cable is broken at once
It is bad.Therefore, the temperature change of cable, high pressure, extra-high voltage for cable especially high capacity transmission are monitored and controlled in real time
Cable safety and economic operation, just seems particularly significant.High pressure, ultra-high voltage cross-linking polyethylene-insulated power cable are general with band metallic sheath
The single-core cable of shielding is in the majority, because high voltage single-core cable is not easy to place temperature-measuring optical fiber, if thermometric light unit arbitrarily put
Put in metallic sheath, being bent during by the deadweight and cable laying that extruded insulation is shielded is influenceed, easily cause temperature-measuring optical fiber by
Lateral pressure and pulling force effect, influence the normal work of temperature-measuring optical fiber.At present, known high-tension cable on-line temperature monitoring is to adopt
With contact or the surface temperature of non-contact testing cable, influenceed larger by environmental factor and heat transfer, the temperature measured
The Genuine Instant temperature of cable can not real-time and accurately be reflected so that some safeguard measure hysteresis motions, cause security incident.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of on-line temperature monitoring optical fiber composite high-voltage cable, with reality
When reflect the Genuine Instant temperature of cable exactly, while not changing original Electric Field Distribution.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of on-line temperature monitoring optical fiber composite high-voltage cable, including the cable core of insulation screen is extruded with, additionally include
Light unit and some semiconductive bars, light unit and some semiconductive bars are close to for a circumference, and are spirally wound on insulation shielding
On layer, form thermometric layer, thermometric layer is outer be surrounded with outside Semi-conductive buffer band, Semi-conductive buffer band be sequentially provided with metallic shield set,
Nonmetallic set and conductive layer.
The light unit is included in semiconductive PBT beam tubes, semiconductive PBT beam tubes provided with many temperature-measuring optical fibers, temperature-measuring optical fiber
Filled with the fine cream of semiconductive between semiconductive PBT beam tubes.
The external diameter of the light unit is identical with the diameter of semiconductive bar.
The semiconductive bar and insulation screen are made by semiconductive material, and Semi-conductive buffer band is by semi-conductive tape and half
Conductive particulate expandable is composited, and metallic shield set is metal set or aluminum alloy sleeve, and nonmetallic set is made up of high polymer material,
Conductive layer is electrically conductive graphite coating.
It is an advantage of the invention that：Light unit and semiconductive bar circumference are wrapped on insulation screen by the present invention, and outsourcing
Semi-conductive buffer band, metallic shield set, nonmetallic set and conductive layer, while cable instantaneous temperature is real-time and accurately reacted,
Ensure the good mechanical performance of cable, not by magnetic interference, be independent of each other with optical fiber monitoring, drastically increase making for cable
Use the life-span.
Brief description of the drawings
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of light unit in the present invention.
Wherein, 1, insulation screen, 2, semiconductive bar, 3, light unit, 4, Semi-conductive buffer band, 5, metallic shield set, 6,
Nonmetallic set, 7, conductive layer, 8, temperature-measuring optical fiber, 9, the fine cream of semiconductive, 10, semiconductive PBT beam tubes, 11, cable core.
Embodiment：
As shown in figure 1, a kind of on-line temperature monitoring optical fiber composite high-voltage cable, including it is extruded with the cable core of insulation screen 1
11, additionally including light unit 3 and some semiconductive bars 2, light unit 3 and some semiconductive bars 2 are close to for a circumference, and spiral shell
Rotation is wrapped on insulation screen 1, forms thermometric layer, in real time the temperature change of monitoring cable, while screw pitch can prevent electricity
The damage to light unit 3 is bent and stretched when cable is laid, and thermometric layer is outer to be surrounded with outside Semi-conductive buffer band 4, Semi-conductive buffer band 4
It is sequentially provided with metallic shield set 5, nonmetallic set 6 and conductive layer 7.
As shown in Fig. 2 light unit 3 is included in semiconductive PBT beam tubes 10, semiconductive PBT beam tubes 10 provided with many temperature measuring opticals
Fibre 8, filled with the fine cream 9 of semiconductive between temperature-measuring optical fiber 8 and semiconductive PBT beam tubes 10, and the external diameter and semiconductive bar of light unit 3
2 diameter is identical, so that the semiconductive bar solid equivalent to one of light unit 3, its semiconductive resistivity and insulation screen 1
Resistivity it is close, and semiconductive bar 2 and insulation screen 1 are made by semiconductive material, the insulation screen so extruded
1st, the electrical property of thermometric layer and Semi-conductive buffer band 4 is basically identical, and electric field is not distorted.The base-material of semiconductive PBT beam tubes 10
For PBT plastic, with excellent mechanical material resources performance, temperature-measuring optical fiber 8 can be protected well, the work of mechanical force is protected it from
With, and semiconductive bar 2, semiconductive PBT beam tubes 10 are close with the linear expansion coefficient of insulation screen 1, with cable load
The common expansion or shrinkage of mechanical periodicity, makes light unit 3 not acted on by stress, so, and temperature-measuring optical fiber 8 can perceive electricity well
The running temperature of cable.
Semi-conductive buffer band 4 is composited by semi-conductive tape and semiconductive particulate expandable, not only with semiconductive property, also
Block water and buffer pad effect, can further slow down the effect of lateral pressure and thermal expansion force, make the laying in cable of light unit 3
With the effect almost not stressed in operation；Metallic shield set 5 is that metal covers or aluminum alloy sleeve, is made except cable shield ground connection is played
With outer, also with radial water-resisting function, prevent moisture or moisture from invading cable；Nonmetallic set 6 is made up of high polymer material, has
Good antiseptic effect；Conductive layer 7 is electrically conductive graphite coating, makes cable good earth.
Further, since temperature-measuring optical fiber 8 is made up of nonmetallic quartz medium material, insulating properties is preferable, neither by electromagnetic field
Interference, also will not to the inner wire of cable core 11 transmit electric energy produce interference, it is ensured that cable electric energy transmission and optical fiber monitoring it is mutual
Do not influence.
Claims (4)
1. a kind of on-line temperature monitoring optical fiber composite high-voltage cable, including the cable core of insulation screen is extruded with, its feature exists
In：Also include light unit and some semiconductive bars, the light unit and some semiconductive bars are close to for a circumference, and spiral is twined
It is wound on insulation screen, forms thermometric layer, the thermometric layer is outer is surrounded with outside Semi-conductive buffer band, the Semi-conductive buffer band
It is sequentially provided with metallic shield set, nonmetallic set and conductive layer.
2. on-line temperature monitoring according to claim 1 optical fiber composite high-voltage cable, it is characterised in that：The light unit
Including semiconductive PBT beam tubes, many temperature-measuring optical fibers, the temperature-measuring optical fiber and semiconductive PBT are provided with the semiconductive PBT beam tubes
Filled with the fine cream of semiconductive between beam tube.
3. on-line temperature monitoring according to claim 1 or 2 optical fiber composite high-voltage cable, it is characterised in that：The light
The external diameter of unit is identical with the diameter of semiconductive bar.
4. on-line temperature monitoring according to claim 1 optical fiber composite high-voltage cable, it is characterised in that：The semiconductive
Bar and insulation screen are made by semiconductive material, and the Semi-conductive buffer band is answered by semi-conductive tape and semiconductive particulate expandable
Conjunction is formed, and the metallic shield set is metal set or aluminum alloy sleeve, and the nonmetallic set is made up of high polymer material, described to lead
Electric layer is electrically conductive graphite coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315798.2A CN106992035A (en) | 2017-05-08 | 2017-05-08 | A kind of on-line temperature monitoring optical fiber composite high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315798.2A CN106992035A (en) | 2017-05-08 | 2017-05-08 | A kind of on-line temperature monitoring optical fiber composite high-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106992035A true CN106992035A (en) | 2017-07-28 |
Family
ID=59418103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710315798.2A Pending CN106992035A (en) | 2017-05-08 | 2017-05-08 | A kind of on-line temperature monitoring optical fiber composite high-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106992035A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655418U (en) * | 2009-11-07 | 2010-11-24 | 特变电工山东鲁能泰山电缆有限公司 | Novel optical fiber temperature measurement high voltage cross-linking power cable |
| CN102610320A (en) * | 2012-03-28 | 2012-07-25 | 宜昌联邦电缆有限公司 | 750-1100kV extra-high voltage cross-linked polyethylene insulated and stainless steel sheathed photoelectric composite cable |
| CN202549463U (en) * | 2012-04-19 | 2012-11-21 | 远东电缆有限公司 | 27.5kV single-phase cable for intelligent electrified railway |
| CN203433874U (en) * | 2013-08-09 | 2014-02-12 | 江苏中辰电缆有限公司 | Rail transit cable |
| CN207264812U (en) * | 2017-05-08 | 2018-04-20 | 江苏通光强能输电线科技有限公司 | A kind of on-line temperature monitoring optical fiber composite high-voltage cable |
-
2017
- 2017-05-08 CN CN201710315798.2A patent/CN106992035A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655418U (en) * | 2009-11-07 | 2010-11-24 | 特变电工山东鲁能泰山电缆有限公司 | Novel optical fiber temperature measurement high voltage cross-linking power cable |
| CN102610320A (en) * | 2012-03-28 | 2012-07-25 | 宜昌联邦电缆有限公司 | 750-1100kV extra-high voltage cross-linked polyethylene insulated and stainless steel sheathed photoelectric composite cable |
| CN202549463U (en) * | 2012-04-19 | 2012-11-21 | 远东电缆有限公司 | 27.5kV single-phase cable for intelligent electrified railway |
| CN203433874U (en) * | 2013-08-09 | 2014-02-12 | 江苏中辰电缆有限公司 | Rail transit cable |
| CN207264812U (en) * | 2017-05-08 | 2018-04-20 | 江苏通光强能输电线科技有限公司 | A kind of on-line temperature monitoring optical fiber composite high-voltage cable |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |