CN202940055U - Optical fiber monitoring early-warning medium-voltage power cable - Google Patents
Optical fiber monitoring early-warning medium-voltage power cable Download PDFInfo
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- CN202940055U CN202940055U CN 201220624948 CN201220624948U CN202940055U CN 202940055 U CN202940055 U CN 202940055U CN 201220624948 CN201220624948 CN 201220624948 CN 201220624948 U CN201220624948 U CN 201220624948U CN 202940055 U CN202940055 U CN 202940055U
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Abstract
The utility model provides an optical fiber monitoring early-warning medium-voltage power cable. The medium-voltage power cable comprises an outer sheath and a cable core wrapped in the outer sheath, wherein a cable core isolation layer is arranged between the cable core and the outer sheath; the cable core comprises a plurality of conductors; the center of the conductors is provided with an in-conductor monitoring early-warning optical fiber unit; the outside of the conductors is sequentially provided with an inner shielding layer, an insulating layer and an outer shielding layer; the center of the cable core is provided with an in-cable-core monitoring early-warning optical fiber unit; and the inside of the outer sheath is provided with an in-outer-sheath monitoring early-warning optical fiber unit. According to the power cable, power cable operation temperature and sheath stress can be monitored and monitoring points are continuous, and thus operation temperature monitoring, fault early warning, fault positioning and an optical fiber communication function are realized, and the power cable has comprehensive functions, is convenient for maintenance, and relatively low in cost.
Description
Technical field
The utility model relates to a kind of medium-pressure power cable, is specifically related to a kind of medium-pressure power cable with fiber-optic monitoring warning function.
Background technology
Existing power cable carries out optical fiber monitoring, generally adopts optical fiber to be placed on the cable outside, and perhaps inner at cable core, its monitoring project is temperature monitoring.
Whether optical fiber is placed on the cable external monitoring, is mainly to measure the cable hull-skin temperature, by experience or experimental data estimation internal temperature, work under reasonable temperature to guarantee cable.Because the structures such as cable external insulation layer, sheath are various, only from cable surface estimation internal temperature, there is larger error.
Optical fiber is placed on the cable core internal monitoring, and the accuracy of monitor temperature is outside accurately than cable, but can't distinguish the temperature of each conductor in cable.
The utility model content
The purpose of this utility model is to provide a kind of fiber-optic monitoring early warning medium-pressure power cable, to solve the problems of the technologies described above.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of fiber-optic monitoring early warning medium-pressure power cable comprises outer jacket and is coated on the interior cable core of outer jacket; Be provided with the cable core separator between cable core and outer jacket; Cable core comprises some conductors, and the conductor center is provided with monitoring and warning fiber unit in conductor; Conductor is provided with internal shield, insulating barrier, outer shielding layer outward successively.
The utility model further improves and is: the cable core center is provided with monitoring and warning fiber unit in cable core.
The utility model further improves and is: be provided with monitoring and warning fiber unit in outer jacket in outer jacket.
The utility model further improves and is: in conductor, the monitoring and warning fiber unit is used for monitoring the operating temperature of every phase conductor, with monitoring cable and phase line load condition.
The utility model further improves and is: in cable core, the monitoring and warning fiber unit is used for the long-term work temperature of monitoring insulating barrier, with monitoring cable service life.
The utility model further improves and is: in outer jacket, the monitoring and warning fiber unit is used for monitoring sheath ess-strain and sheath temperature, with mechanical damage and the fire alarm of monitoring outer bound pair cable.
The utility model further improves and is: in conductor, the monitoring and warning optical fiber of monitoring and warning fiber unit is high temperature resistant monomode fiber or multimode fiber; Fill in the stainless steel tube of high temperature resistant high heat conduction ointment in the monitoring and warning fiber unit is arranged in conductor and tightly overlapped the insulation sheath by high temperature resistant high heat conduction and coat.
The utility model further improves and is: in cable core, the monitoring and warning optical fiber of monitoring and warning fiber unit is monomode fiber or multimode fiber; The monitoring and warning fiber unit is arranged in the stainless steel tube of interior oil-filled cream or is coated by tight cover in cable core.
The utility model further improves and is: in outer jacket, the monitoring and warning optical fiber of monitoring and warning fiber unit is monomode fiber or the multimode fiber with good bending resistance; In outer jacket, the monitoring and warning fiber unit is arranged at by high temperature resistant tense-lax cover and coats.
With respect to prior art, the beneficial effect that the utlity model has is as follows:
1, whether in the reasonable scope the operating temperature of the every phase conductor of monitoring, determine the insulated working temperature, the timely early warning of short circuit overtemperature, by every phase conductor temperature computation cable current size, carry every conductor load condition that supplies mutually, in time adjust power supply plan, to improve the cable operational efficiency.
2, whether in the reasonable scope temperature in monitoring insulation and cable core, determine the insulated working temperature, by along optical fiber every bit temperature monitoring, finds out the high temperature dot in insulation, realizes insulation fault early warning and location.
3, monitoring sheath temperature determines whether the cable heat radiation is normal, monitoring of environmental temperature, forecast fire, monitoring fire development trend, accurately location.
4, monitoring sheath ess-strain, early warning when cable is received than macrobending or weight, accurately the location, prevent artificial destruction and mechanical damage.This power cable can monitoring power cable temperature and sheath strain, and the monitoring point is continuous, realizes temperature monitoring, fault pre-alarming, fault location, optical fiber communication function, complete function, and easy to maintenance, expense is lower.
Description of drawings
Fig. 1 is the cross sectional representation of the utility model fiber-optic monitoring early warning medium-pressure power cable.
Wherein, monitoring and warning fiber unit 1, conductor 2, internal shield 3, insulating barrier 4, outer shielding layer 5, the interior monitoring and warning fiber unit 6 of cable core, cable core separator 7, outer jacket 8, the interior monitoring and warning fiber unit 9 of outer jacket in conductor.
Embodiment
The medium-pressure power cable monitoring and warning not only needs temperature monitoring, also should react the cable operating state by temperature monitoring, operating temperature as accurate in conductor, the running current of every phase conductor, the phase line load condition, the accurate operating temperature of insulating barrier, temperature anomaly point in cable core, also should comprise simultaneously the ess-strain monitoring, can monitor when the cable short circuit fault and in time early warning, when being subject to mechanical damage or artificial destruction, cable can accurately locate breakdown point, and can Real-Time Monitoring and early warning when being subject to bending or weight.
As shown in Figure 1, a kind of fiber-optic monitoring early warning of the utility model medium-pressure power cable comprises outer jacket 8 and is coated on the interior cable core of outer jacket 8; Be provided with cable core separator 7 between cable core and outer jacket 8.Be provided with monitoring and warning fiber unit 9 in outer jacket in outer jacket 8.Cable core comprises a plurality of conductors 2, and conductor 2 centers are provided with monitoring and warning fiber unit 1 in conductor, and the cable core center is provided with monitoring and warning fiber unit 6 in cable core; Outer internal shield 3, insulating barrier 4, the outer shielding layer 5 of being provided with successively of conductor 2.
The monitoring and warning optical fiber of the fine unit 9 of monitoring light early warning is that monitoring and warning optical fiber with monitoring and warning fiber unit 1 in the monomode fiber of good bending resistance or multimode fiber, conductor is that the monitoring optical fiber of monitoring and warning fiber unit 6 in high temperature resistant monomode fiber or multimode fiber, cable core is monomode fiber or multimode fiber in outer jacket.
In monitoring and warning fiber unit 9 adopts that high temperature resistant tense-laxs cover coats in outer jacket, monitoring and warning fiber unit 6 adopts in cable core the stainless steel tube protection of oil-filled cream or adopt that tight cover coats, monitoring and warning fiber unit 1 adopts in the stainless steel tube that fills high temperature resistant high heat conduction ointment and is tightly overlapped the insulation sheath by high temperature resistant high heat conduction and coats in conductor.
According to different instructions for uses, in conductor of the present utility model, monitoring and warning fiber unit, the interior monitoring and warning fiber unit of cable core and the interior monitoring and warning fiber unit of outer jacket can use selectively.
When using, the utility model only needs light unit inner fiber connection fiber optic detection system can be realized the monitoring and warning function.
Claims (9)
1. a fiber-optic monitoring early warning medium-pressure power cable, is characterized in that, comprises outer jacket (8) and be coated on the interior cable core of outer jacket (8); Be provided with cable core separator (7) between cable core and outer jacket (8); Cable core comprises some conductors (2), and conductor (2) center is provided with monitoring and warning fiber unit (1) in conductor; Outer internal shield (3), insulating barrier (4), the outer shielding layer (5) of being provided with successively of conductor (2).
2. a kind of fiber-optic monitoring early warning medium-pressure power cable according to claim 1, is characterized in that, the cable core center is provided with monitoring and warning fiber unit (6) in cable core.
3. a kind of fiber-optic monitoring early warning medium-pressure power cable according to claim 1 and 2, is characterized in that, is provided with monitoring and warning fiber unit (9) in outer jacket in outer jacket (8).
4. a kind of fiber-optic monitoring early warning medium-pressure power cable according to claim 1, is characterized in that, in conductor, monitoring and warning fiber unit (1) is used for monitoring the operating temperature of every phase conductor, with monitoring cable and phase line load condition.
5. a kind of fiber-optic monitoring early warning medium-pressure power cable according to claim 2, is characterized in that, in cable core, monitoring and warning fiber unit (6) is used for the long-term work temperature of monitoring insulating barrier, with monitoring cable service life.
6. a kind of fiber-optic monitoring early warning medium-pressure power cable according to claim 3, is characterized in that, in outer jacket, monitoring and warning fiber unit (9) is used for monitoring sheath ess-strain and sheath temperature, with mechanical damage and the fire alarm of monitoring outer bound pair cable.
7. according to claim 1 or 4 described a kind of fiber-optic monitoring early warning medium-pressure power cables, is characterized in that, in conductor, the monitoring and warning optical fiber of monitoring and warning fiber unit (1) is monomode fiber or multimode fiber; Monitoring and warning fiber unit (1) is arranged in the stainless steel tube of interior oil-filled cream and is coated by tight cover insulation sheath in conductor.
8. according to claim 2 or 5 described a kind of fiber-optic monitoring early warning medium-pressure power cables, is characterized in that, in cable core, the monitoring and warning optical fiber of monitoring and warning fiber unit (6) is monomode fiber or multimode fiber; Monitoring and warning fiber unit (6) is arranged in the stainless steel tube of interior oil-filled cream or is coated by tight cover in cable core.
9. a kind of fiber-optic monitoring early warning medium-pressure power cable according to claim 3, is characterized in that, in outer jacket, the monitoring optical fiber of monitoring and warning fiber unit (9) is monomode fiber or multimode fiber; In outer jacket, monitoring fiber unit (9) is coated by the tense-lax cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624948 CN202940055U (en) | 2012-11-22 | 2012-11-22 | Optical fiber monitoring early-warning medium-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624948 CN202940055U (en) | 2012-11-22 | 2012-11-22 | Optical fiber monitoring early-warning medium-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940055U true CN202940055U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220624948 Expired - Lifetime CN202940055U (en) | 2012-11-22 | 2012-11-22 | Optical fiber monitoring early-warning medium-voltage power cable |
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| Country | Link |
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| CN (1) | CN202940055U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545040A (en) * | 2013-11-08 | 2014-01-29 | 江苏中煤电缆有限公司 | Optical fiber composite variable-frequency cable |
| CN104392795A (en) * | 2014-11-27 | 2015-03-04 | 安徽华通电缆集团有限公司 | Intelligent temperature measuring soft cable with 6/10kV rated voltage for coal mine |
| CN105427944A (en) * | 2015-12-23 | 2016-03-23 | 无锡市曙光电缆有限公司 | Confidential optical fiber composite medium-voltage cable |
| CN105469880A (en) * | 2015-12-31 | 2016-04-06 | 江苏中煤电缆有限公司 | Temperature controlling and detecting composite shuttle cable |
| CN106024103A (en) * | 2016-07-15 | 2016-10-12 | 无锡市曙光电缆有限公司 | Power cable for intelligent new energy automobile |
| CN106057351A (en) * | 2016-08-01 | 2016-10-26 | 江苏远方电缆厂有限公司 | Temperature measurement soft fire resistant transmission signal cable |
| CN106920594A (en) * | 2017-04-26 | 2017-07-04 | 武汉大学 | A kind of subway optical fiber composite intelligent cable |
| CN106940228A (en) * | 2017-04-26 | 2017-07-11 | 武汉大学 | A kind of intelligent cable on-line monitoring system and monitoring method |
| CN106959173A (en) * | 2017-04-26 | 2017-07-18 | 武汉大学 | A kind of optical fiber is combined Metro Cable on-line monitoring system and monitoring method |
| CN106981326A (en) * | 2017-04-26 | 2017-07-25 | 武汉大学 | A kind of optical fiber is combined Metro Cable |
| CN113488279A (en) * | 2021-07-19 | 2021-10-08 | 安徽徽宁电器仪表集团有限公司 | Environment-friendly control cable |
-
2012
- 2012-11-22 CN CN 201220624948 patent/CN202940055U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545040A (en) * | 2013-11-08 | 2014-01-29 | 江苏中煤电缆有限公司 | Optical fiber composite variable-frequency cable |
| CN104392795A (en) * | 2014-11-27 | 2015-03-04 | 安徽华通电缆集团有限公司 | Intelligent temperature measuring soft cable with 6/10kV rated voltage for coal mine |
| CN105427944A (en) * | 2015-12-23 | 2016-03-23 | 无锡市曙光电缆有限公司 | Confidential optical fiber composite medium-voltage cable |
| CN105469880A (en) * | 2015-12-31 | 2016-04-06 | 江苏中煤电缆有限公司 | Temperature controlling and detecting composite shuttle cable |
| CN106024103A (en) * | 2016-07-15 | 2016-10-12 | 无锡市曙光电缆有限公司 | Power cable for intelligent new energy automobile |
| CN106057351A (en) * | 2016-08-01 | 2016-10-26 | 江苏远方电缆厂有限公司 | Temperature measurement soft fire resistant transmission signal cable |
| CN106920594A (en) * | 2017-04-26 | 2017-07-04 | 武汉大学 | A kind of subway optical fiber composite intelligent cable |
| CN106940228A (en) * | 2017-04-26 | 2017-07-11 | 武汉大学 | A kind of intelligent cable on-line monitoring system and monitoring method |
| CN106959173A (en) * | 2017-04-26 | 2017-07-18 | 武汉大学 | A kind of optical fiber is combined Metro Cable on-line monitoring system and monitoring method |
| CN106981326A (en) * | 2017-04-26 | 2017-07-25 | 武汉大学 | A kind of optical fiber is combined Metro Cable |
| CN113488279A (en) * | 2021-07-19 | 2021-10-08 | 安徽徽宁电器仪表集团有限公司 | Environment-friendly control cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 7, Tang Xing Road, Xi'an high tech Zone, Shaanxi Province Patentee after: CHINA XD GROUP CO.,LTD. Address before: No. 7, Tang Xing Road, Xi'an, Shaanxi Province Patentee before: CHINA XD Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |