CN205621480U - Cable with self -checking function - Google Patents
Cable with self -checking function Download PDFInfo
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- CN205621480U CN205621480U CN201620196403.2U CN201620196403U CN205621480U CN 205621480 U CN205621480 U CN 205621480U CN 201620196403 U CN201620196403 U CN 201620196403U CN 205621480 U CN205621480 U CN 205621480U
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Abstract
The utility model provides a cable with self -checking function, including cable core and the protective sheath of parcel outside the cable core, its characterized in that: still including setting gradually conductor shield between cable core and protective sheath, insulating layer, insulation screen, the vertical buffer layer that blocks water, the insulating layer is provided with fiber optic sensor, fiber optic sensor and the MCU who installs at cable termination are connected. Compared with the prior art, the utility model discloses the cable has self -checking function, is arranged in high voltage electricity transmission, through the early warning in time of fiber optic sensor, MCU and alarm with retrieve the trouble fast, has improved high voltage electricity transmission security nature, and the cost has also been practiced thrift to the while.
Description
Technical field
This utility model relates to a kind of power cable, is specifically related to a kind of cable with self-checking function.
Background technology
Cable is typically the cable of the similar rope stranded by several or several groups of wires [often organizing at least two], often mutually insulated between group wire, and is often twisted into round a center, and whole outside is surrounded by the cover layer of high-insulation.It is erected at aerial more or is contained in underground, the bottom, for telecommunication or power transmission.
It is placed in the insulated conductor constituted in sealing sheath by the conducting wire center of one or more mutually insulated.Protection cover layer can be added outside it, be used for transmitting, distributing electric energy or transmit the signal of telecommunication.It is mainly cable dimension relatively greatly with the difference of common wiring, and structure is more complicated.
Cable is mainly made up of following 4 parts.1. conducting wire center: make with high conductivity material (copper or aluminum).According to laying the requirement to cable softness of the use condition, the every line heart may be formed by solid conductor or multiple conducting wires are stranded.2. insulating barrier: the insulant as cable should have high insulation resistance, high breakdown field strength, low dielectric loss and low dielectric constant.Insulant conventional in cable has oil-paper, polrvinyl chloride, polyethylene, crosslinked polyethylene, rubber etc..Cable is often classified with insulant, such as oil-impregnated paper insulation cable, polyvinyl chloride cable, twisted polyethylene cable etc..3. sealing sheath: the protection covered wire heart is from the damage of machinery, moisture, moisture, chemical substance, light etc..For the insulation of moisture-sensitive, general employing lead or aluminium extrusion sealing sheath.4. cover layer is protected: in order to protect sealing sheath from mechanical damage.Typically using galvanized steel strip, steel wire or copper strips, copper wire etc. to surround sheath as armor outer (title armored cable), armor plays electric field shielding simultaneously and prevents the effect of external electromagnetic wave interference.In order to avoid steel band, steel wire are corroded by surrounding media, typically pitch or hold macerated jute layer or extruded polyethylene, polrvinyl chloride set outside them.
Cable can be divided into power cable, communication cable and control cable etc. by its purposes.Compared with aerial line, the advantage of cable is that between line, insulation distance is little, and it is little to take up an area space, underground laying and do not take up an area face space above, do not affected by ambient contamination, power transmission reliability is high, disturbs little to personal safety and surrounding.But cost is high, constructs, it is the most cumbersome to overhaul, manufacture the most complicated.Therefore, cable is applied to densely populated and the dense district of electrical network and congested in traffic busy place more；Cross river, cross the river, laying down on sea bottom then can avoid use large span aerial line.Aerial line is avoided to the place of Communication Jamming and to need consider attractive in appearance or avoid the occasion given away one's position to may be used without cable needing.
Summary of the invention
The purpose of this utility model is to provide a kind of cable with self-checking function, it is provided that in the safety of high voltage power transmission.
This utility model realizes by the following technical solutions: this utility model provides a kind of cable with self-checking function; including cable core and the protection set that is wrapped in outside cable core, the conductor shield that also includes being successively set between cable core and protection set, insulating barrier, insulation screen, longitudinal water-blocking cushion；Described insulating barrier is provided with fiber optic sensor；Described fiber optic sensor is connected with the MCU being arranged on cable termination.
Further, described cable core is segmenting structure copper conductor.
Further, described protection set includes wrinkle aluminum protection set and plastic protective sleeve；The protection of described plastics is wrapped in outside wrinkle aluminum protection set；Described plastic protective sleeve is polrvinyl chloride protection set or vinyl chloride protection set.
Further, it is additionally provided with an asphalt corrosion resistant layer between described wrinkle aluminum protection set and plastic protective sleeve.
Further, also including an alarm being arranged on cable termination, described alarm is connected with MCU.
Further, also including a display being arranged on cable termination, described display is connected with MCU.
Further, described fiber optic sensor includes temperature fiber optic sensor, electric current fiber optic sensor and humidity fiber optic sensor.
Compared with prior art, this utility model cable has self-checking function, is suitable in high voltage power transmission, can early warning in time and quick-searching fault by fiber optic sensor, MCU and alarm, improve high voltage power transmission safety, also save cost simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
With detailed description of the invention, this utility model is described further below in conjunction with the accompanying drawings.
See Fig. 1; this utility model provides a kind of cable with self-checking function; including cable core 1 and the protection set that is wrapped in outside cable core, the conductor shield 2 that also includes being successively set between cable core and protection set, insulating barrier 3, insulation screen 4, longitudinal water-blocking cushion 5；Described insulating barrier is provided with fiber optic sensor；Described fiber optic sensor is connected with the MCU being arranged on cable termination.Insulating barrier 3 can select mica tape insulating barrier can also select crosslinked polyetylene insulated layer.Longitudinal water-blocking cushion 5 can use semiconductive to block water binding strap, and the semiconductive binding strap that blocks water applies rational winding method, can realize insulation shield surface and the completely excellent longitudinal water-blocking system of conductor.
Further, described cable core 1 is segmenting structure copper conductor.Segmenting structure copper conductor can effectively reduce alternating current " kelvin effect " and " neighbour's effect " in the transmission, during therefore this utility model is more suitable for high voltage power transmission.
Further, described protection set includes wrinkle aluminum protection set 6 and plastic protective sleeve 8；The protection of described plastics is wrapped in outside wrinkle aluminum protection set；Described plastic protective sleeve is polrvinyl chloride protection set or vinyl chloride protection set.Wrinkle aluminum protection set 6 have lightweight, intensity is big, flexible feature, can simultaneously serve as radially waterproof layer, there is excellent water resistance.Plastic protective sleeve 8 mainly prevents wrinkle aluminum protection set 6 to be corroded, and extends the protection of wrinkle aluminum and overlapped for 6 service lifes.
It is also preferred that the left be additionally provided with an asphalt corrosion resistant layer 9 between described wrinkle aluminum protection set and plastic protective sleeve.The function that asphalt corrosion resistant layer 9 is also also for preventing wrinkle aluminum protection set 6 to be corroded, extends the protection of wrinkle aluminum and overlapped for 6 service lifes.
Because optical fiber is electrooptical material and magneto-optic memory technique, it is possible to utilize Kerr effect, Faraday effect etc., make the measurement sensor such as heavy current, high voltage;The transmission characteristic of the most available optical fiber becomes input quantity the optical signal of modulation.Because characterizing the parameter of light wave property, as amplitude (light intensity), phase place and polarization state can change along with the environment (such as strain, pressure, temperature, electric field, ray etc.) of optical fiber, therefore utilize these characteristics just can realize sensing measurement.High tension cable in utility model mainly measures the pressure of cable, strain, temperature and magnetic field, therefore can utilize fiber phase modulating characteristic.Fiber phase modulation is the modulation format that optical fiber is easier to realize, and all can affect the measured of fiber lengths, refractive index and internal stress phase place all can be caused to change, such as pressure, strain, temperature and magnetic field etc..And Fibre Optical Sensor is compared with traditional various kinds of sensors, Fibre Optical Sensor uses up the carrier as sensitive information, with optical fiber as the medium transmitting sensitive information, there is the feature of optical fiber and optical measurement, having electrical insulation capability good, anti-electromagnetic interference capability is strong, Noninvasive, high sensitivity, easily realize the remote monitor to measured signal, corrosion-resistant, explosion-proof, light path has flexibility, it is simple to the advantage such as computer couples.
When high tension cable major failure includes: overload produces overheated, conductor shield and insulating barrier breakage produces leakage current, protection set and longitudinal water-blocking cushion breakage and causes moisture to penetrate into; therefore, in this utility model one embodiment, described fiber optic sensor includes temperature fiber optic sensor 7-1, electric current fiber optic sensor 7-2 and humidity fiber optic sensor 7-3.
The MCU(microcomputer of fiber optic sensor and cable termination) it is connected, therefore can monitor the working condition of cable in real time, in this utility model one embodiment, also include an alarm being arranged on cable termination, described alarm is connected with MCU.When cable breaks down, MCU controls alarm action, and patrol officer can process in time, reduces loss.
In another embodiment of this utility model, also including a display screen being arranged on cable termination, described display screen is connected with MCU.When a failure occurs it, the MCU reception signal that also simple analysis fiber optic sensor sends also is shown by display screen, and patrol officer is appreciated that specifically there occurs what fault by display screen, can go maintenance with corresponding tool when maintenance.
Above example is merely to illustrate preferred implementation of the present utility model; but this utility model is not limited to above-mentioned embodiment; in the ken that described field those of ordinary skill is possessed; any amendment, equivalent replacement and the improvement etc. made within spirit of the present utility model and principle, it all should be contained within the scope of the technical scheme that this utility model is claimed.
Claims (7)
1. there is a cable for self-checking function, including cable core and the protection set that is wrapped in outside cable core, it is characterised in that: the conductor shield that also includes being successively set between cable core and protection set, insulating barrier, insulation screen, longitudinal water-blocking cushion；Described insulating barrier is provided with fiber optic sensor；Described fiber optic sensor is connected with the MCU being arranged on cable termination.
The cable with self-checking function the most according to claim 1, it is characterised in that: described cable core is segmenting structure copper conductor.
The cable with self-checking function the most according to claim 1, it is characterised in that: described protection set includes wrinkle aluminum protection set and plastic protective sleeve；The protection of described plastics is wrapped in outside wrinkle aluminum protection set；Described plastic protective sleeve is polrvinyl chloride protection set or vinyl chloride protection set.
The cable with self-checking function the most according to claim 3, it is characterised in that: it is additionally provided with an asphalt corrosion resistant layer between described wrinkle aluminum protection set and plastic protective sleeve.
The cable with self-checking function the most according to claim 1, it is characterised in that: also including an alarm being arranged on cable termination, described alarm is connected with MCU.
The cable with self-checking function the most according to claim 1, it is characterised in that: also including a display being arranged on cable termination, described display is connected with MCU.
The cable with self-checking function the most according to claim 1, it is characterised in that: described fiber optic sensor includes temperature fiber optic sensor, electric current fiber optic sensor and humidity fiber optic sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196403.2U CN205621480U (en) | 2016-03-15 | 2016-03-15 | Cable with self -checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196403.2U CN205621480U (en) | 2016-03-15 | 2016-03-15 | Cable with self -checking function |
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| Publication Number | Publication Date |
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| CN205621480U true CN205621480U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620196403.2U Active CN205621480U (en) | 2016-03-15 | 2016-03-15 | Cable with self -checking function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328284A (en) * | 2016-11-03 | 2017-01-11 | 无锡市长城电线电缆有限公司 | Self-measured flat buried agricultural cable |
| CN106659106A (en) * | 2017-02-16 | 2017-05-10 | 中海油能源发展股份有限公司 | Novel cable antimagnetic alarm device |
| CN108469577A (en) * | 2018-05-24 | 2018-08-31 | 广东电网有限责任公司 | A kind of device by leakage current measurement cable aging |
| CN109949992A (en) * | 2019-03-22 | 2019-06-28 | 广西电网有限责任公司桂林供电局 | A kind of power cable with shelf depreciation self-checking function |
| CN112268687A (en) * | 2020-11-06 | 2021-01-26 | 国网四川省电力公司泸州供电公司 | Layer-stranded optical cable based on optical fiber sensing and application method thereof |
-
2016
- 2016-03-15 CN CN201620196403.2U patent/CN205621480U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328284A (en) * | 2016-11-03 | 2017-01-11 | 无锡市长城电线电缆有限公司 | Self-measured flat buried agricultural cable |
| CN106659106A (en) * | 2017-02-16 | 2017-05-10 | 中海油能源发展股份有限公司 | Novel cable antimagnetic alarm device |
| CN108469577A (en) * | 2018-05-24 | 2018-08-31 | 广东电网有限责任公司 | A kind of device by leakage current measurement cable aging |
| CN109949992A (en) * | 2019-03-22 | 2019-06-28 | 广西电网有限责任公司桂林供电局 | A kind of power cable with shelf depreciation self-checking function |
| CN112268687A (en) * | 2020-11-06 | 2021-01-26 | 国网四川省电力公司泸州供电公司 | Layer-stranded optical cable based on optical fiber sensing and application method thereof |
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