CN201638587U - Cable capable of monitoring self working temperature in real time - Google Patents
Cable capable of monitoring self working temperature in real time Download PDFInfo
- Publication number
- CN201638587U CN201638587U CN2010201298072U CN201020129807U CN201638587U CN 201638587 U CN201638587 U CN 201638587U CN 2010201298072 U CN2010201298072 U CN 2010201298072U CN 201020129807 U CN201020129807 U CN 201020129807U CN 201638587 U CN201638587 U CN 201638587U
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- cable
- temperature
- working temperature
- real time
- metal
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Abstract
The utility model discloses a cable capable of monitoring the self working temperature in real time, which comprises a jacket layer, a jacket lower structure layer and a cable core, wherein the jacket layer is internally provided with two metal wires along the axial direction; and when the jacket lower structure layer is made of metal or semi-conductive material, the surface of each metal wire is covered with a layer of insulating material. The cable utilizes the physical phenomenon that the metal resistance value is increased along with the rise of temperature and is reduced along with the fall of temperature for a first time, thus realizing real-time monitoring for the working temperature of the cable. The temperature rise data of the cable is simply, conveniently and accurately acquired, so that when the cable is in operation, the temperature rise situation is monitored at any time. The cable not only remarkably improves the accuracy and continuity of temperature measurement, but also greatly lightens the work load of cable maintainers. Furthermore, the cable capable of monitoring the self working temperature in real time has simple structure, low cost, simple and convenient production technique and good application prospect.
Description
Technical field
The utility model belongs to the cable processing technique field, is specifically related to a kind of cable that can monitor its working temperature in real time.
Background technology
Existing cable generally is made up of conductor, insulation and three parts of sheath.In the cable use, cable can generate heat under the function of current, make by macromolecular materials such as plastics because cable insulation and sheath are many, and the cable adstante febre, the plastic member of cable can soften.Particularly in a single day the insulating barrier of cable is subjected to thermal softening, can lose its insulation function, causes the alternate or shorted to earth of cable core, causes cable bad or power outage.For preventing that the cable heating from causing short circuit accident, common maintaining method is in the cable running, by the special messenger heating and the temperature rise situation of cable surface is monitored, and increases and decreases the load of cable in good time, reaches purpose of safe operation.The method one of concrete monitoring cable heating is to touch cable surface with hand, judges the temperature rise situation of cable by experience with sensation; Perhaps adopt temperature measuring device (for example infrared radiation thermometer etc.) that the cable temperature rise is detected record piecemeal, not only expend more manpower and materials, and can't obtain real-time cable temperature data, measurement result is also inaccurate.
The utility model content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of cable that can monitor its working temperature in real time is provided, and to reduce maintenance cost, guarantees power equipment safety.
The purpose of this utility model is achieved through the following technical solutions.
A kind of cable that can monitor its working temperature in real time comprises restrictive coating, and structure sheaf and cable core under the sheath are provided with two one metal wires vertically in restrictive coating.
When structure sheaf is metal or semiconductive material under the described sheath, coat one deck insulating material in wire surface.
Described wire diameter is preferably φ 1.128mm, and (cross section is 1mm
2).
The utility model utilizes the metallic resistance value to increase, reduce the physical phenomenon that reduces with temperature with the temperature rising initiatively, realizes the real-time monitoring to the cable working temperature.It is easy, accurate to obtain cable temperature rise data, and the operating temperature rise situation of cable is in the monitoring at any time.Not only significantly improve the accuracy and the continuity of temperature measuring, and reduced cable maintenance personnel's workload significantly.It is simple in structure, with low cost, production technology is easy, has application prospect well.
Description of drawings
Fig. 1 can monitor the structure and the working state schematic representation of the cable of its working temperature in real time for the utility model;
Fig. 2 is structure of the present utility model and working state schematic representation when structure sheaf under the cable cover(ing) is metal or semiconductive material.
Among the figure: 1. cable jacket, 2. thermometric wire, 3. thermometric wire insulating barrier, 4. welded wire point, 5. structure sheaf under the cable jacket, 6. cable core, 7. Electric Resistance Value of Metal measuring instrument.
Embodiment
The utility model is further described below in conjunction with drawings and Examples, but they are not to qualification of the present utility model.
As shown in Figure 1, axially place two thermometrics wire 2 along cable in cable jacket 1, wire and macromolecular material are extruded simultaneously when oversheath is processed.
As shown in Figure 2, be applied directly to cable on cable metal screen or the cable metal armour, on thermometric wire 2, directly squeeze into one deck insulating material 3, make thermometric wire 2 and metallic shield or 5 insulation of cable metal armour for oversheath.
Operation principle of the present utility model: as shown in Figure 1 and Figure 2, after completion is installed in cable laying, utilize the Cold welding mode that two one metal wires of cable electricity consumption end are welded at connecting point position 4 places, at the sending end of cable, utilize the situation of change of thermometric wire D.C. resistance under the apparatus measures cable jackets such as electric bridge.Because the resistance value of metal can increase with the rising of temperature, reduce with the reduction of temperature, therefore, measure the pairing temperature value of dc resistance wiry, can realize the purpose of monitoring cable temperature rise at any time.
For thermometric wire 2, resistivity was 17.24n Ω m, the diameter soft copper single line as φ 1.128mm when the utility model recommended to use 20 ℃, and the corresponding relation of its resistance value and temperature value can pass through standard GB/T3956-2008 appendix A and appendix B acquisition.
Claims (3)
1. the cable that can monitor its working temperature in real time comprises restrictive coating, and structure sheaf and cable core under the sheath is characterized in that: two one metal wires are set in restrictive coating vertically.
2. the cable that can monitor its working temperature in real time according to claim 1 is characterized in that: when structure sheaf is metal or semiconductive material under the described sheath, coat one deck insulating material in described wire surface.
3. the cable that can monitor its working temperature in real time according to claim 1 is characterized in that: described wire diameter is φ 1.128mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201298072U CN201638587U (en) | 2010-03-12 | 2010-03-12 | Cable capable of monitoring self working temperature in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201298072U CN201638587U (en) | 2010-03-12 | 2010-03-12 | Cable capable of monitoring self working temperature in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638587U true CN201638587U (en) | 2010-11-17 |
Family
ID=43083092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201298072U Expired - Lifetime CN201638587U (en) | 2010-03-12 | 2010-03-12 | Cable capable of monitoring self working temperature in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751008A (en) * | 2011-04-19 | 2012-10-24 | 大连沈特电缆有限公司 | Copper-clad aluminum core resistance thermometer cable |
| CN111307311A (en) * | 2020-03-12 | 2020-06-19 | 戴天智能科技（上海）有限公司 | Temperature measurement sensor packaging structure |
-
2010
- 2010-03-12 CN CN2010201298072U patent/CN201638587U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751008A (en) * | 2011-04-19 | 2012-10-24 | 大连沈特电缆有限公司 | Copper-clad aluminum core resistance thermometer cable |
| CN111307311A (en) * | 2020-03-12 | 2020-06-19 | 戴天智能科技（上海）有限公司 | Temperature measurement sensor packaging structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |