CN116543967A - Medium-voltage composite fire-resistant cable with temperature measurement control system - Google Patents
Medium-voltage composite fire-resistant cable with temperature measurement control system Download PDFInfo
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- CN116543967A CN116543967A CN202310422837.4A CN202310422837A CN116543967A CN 116543967 A CN116543967 A CN 116543967A CN 202310422837 A CN202310422837 A CN 202310422837A CN 116543967 A CN116543967 A CN 116543967A
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 45
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 238000009413 insulation Methods 0.000 claims description 21
- 239000004020 conductor Substances 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000012806 monitoring device Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000003685 thermal hair damage Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The application discloses compound fire-resistant cable of middling pressure with temperature measurement control system, including cable body and temperature measurement system, cable terminal is installed at cable body's both ends, cable body's high-order end fixedly connected with copper pipe branch, copper pipe branch's the other end passes through automatically controlled valve and fire control water piping connection, cable body's low-order end fixedly connected with overflow pipe, cable body includes cable core, cable core includes looks sinle silk, seamless pipe, temperature measurement light unit and heat conduction strap. According to the temperature monitoring device, the temperature monitoring device and the temperature monitoring method, through the arrangement of the seamless tube, the temperature measuring light unit, the temperature measuring system, the fire-fighting water tube and the electric control valve, the temperature measuring light unit can realize real-time temperature monitoring on any point of the length direction of the cable, when the electric control valve is opened, water in the fire-fighting water tube can continuously flow into the seamless tube, and the temperature in the cable core is lower than the maximum temperature of the cable which is allowed to run for a long time through continuous water passing in the seamless tube, so that the cable can work reliably for a long time.
Description
Technical Field
The present application relates to the field of cables, and more particularly, to a medium voltage composite fire resistant cable with a temperature measurement control system.
Background
The fire-resistant cable is capable of continuously supplying power in a designed and specified time under the condition that external flame is still burnt when a fire accident occurs, so that continuous and normal operation of electricity utilization facilities is ensured. The medium voltage fire resistant cable has high power supply and is generally used in extremely important power supply places and related facilities.
Currently, some patents for improving a medium voltage fire-resistant cable are disclosed in the prior art, such as a medium voltage fire-resistant cable disclosed in the issued patent with the application number of CN202210797701.7, a medium voltage fire-resistant cable disclosed in the issued patent with the application number of CN202211129004.0, and a medium voltage fire-resistant cable disclosed in the issued patent with the application number of CN202220800288.0, but the fire-resistant principles of the medium voltage fire-resistant cables in these schemes are as follows: the heat insulation layer is formed by adding a fireproof heat insulation material coating on the periphery of the cable core, and when the external flame is high in temperature, the heat insulation layer is used for blocking, and the internal temperature of the cable core is far lower than the flame temperature, so that the cable can normally run. Unlike the low-voltage fire-resistant cable which can use inorganic mineral materials as high-temperature resistant insulating medium, the medium-voltage cable can only use organic matters as insulating medium, so that the temperature which the cable core can withstand is limited, even if the heat-insulating fire-resistant layer is thick again, the internal temperature of the cable core can be continuously increased under the condition of higher temperature or longer duration of a fire scene, and finally the insulating structure of the cable is damaged, so that the cable is invalid.
Disclosure of Invention
In view of the above problems, the technical scheme adopted in the application is as follows: a medium-voltage composite fire-resistant cable with a temperature measurement control system is provided with a passive heat insulation and cooling structure and an active cooling structure, and the passive heat insulation and cooling structure is utilized to balance the temperature in a cable core and prevent the heat damage possibly caused by local high temperature to the cable core and increase the heat conduction efficiency of the cable; the active cooling structure is utilized to continuously introduce cooling fluid into the cable, so that the cable is cooled, and the long-term reliable operation of the cable is ensured.
The utility model provides a compound fire-resistant cable of middling pressure with temperature measurement control system, includes cable body and temperature measurement system, cable terminal is installed at the both ends of cable body, the high-order end fixedly connected with copper pipe branch of cable body, the other end of copper pipe branch passes through the electrically controlled valve and is connected with fire control water pipe, the low-order end fixedly connected with overflow pipe of cable body;
the cable body comprises a cable core, the outer surface of the cable core is coated with a heat insulation fire-resistant layer, and the outer surface of the heat insulation fire-resistant layer is extruded with a cable outer sheath;
the cable core comprises a phase wire core, a seamless pipe connected with a copper pipe branch and an overflow pipe, a temperature measuring light unit connected with a temperature measuring system and a heat conducting metal belt, wherein the seamless pipe is arranged between two adjacent phase wire cores, the temperature measuring light unit with a temperature measuring function is arranged between any two adjacent phase wire cores, the phase wire core, the seamless pipe and the temperature measuring light unit are twisted, the heat conducting metal belt is wrapped on the outer layer of the twisted phase wire core, the phase wire core comprises a conductor, a conductor shielding layer wrapped on the outer surface of the conductor, an insulating layer wrapped on the outer surface of the conductor shielding layer, an insulating shielding layer wrapped on the outer surface of the insulating layer and a metal shielding layer wrapped on the outer surface of the insulating shielding layer;
the heat-insulating fireproof layer comprises a heat-insulating layer and a fireproof wrapping belt wrapping the outer surface of the heat-insulating layer.
Preferably, the temperature measuring light unit is located between the gaps outside any two adjacent phase line cores, and the seamless tube is located between the gaps outside the two adjacent phase line cores.
Preferably, the number of the phase line cores is three, and the three phase line cores are circumferentially distributed.
Preferably, the heat conducting metal belt has two layers.
Preferably, the number of the seamless pipes is three, one high-position ends of the three seamless pipes are converged together through copper pipe branches, the other ends of the seamless pipes are connected with overflow pipes, and the seamless pipes are seamless copper pipes or seamless aluminum pipes.
Preferably, when the seamless pipe is a seamless aluminum pipe, the metal shielding layer and the heat conducting metal belt are both made of aluminum alloy belts; when the seamless pipe is a seamless copper pipe, the metal shielding layer and the heat conducting metal belt are both made of copper alloy belts.
Preferably, the fire-resistant wrapping tape comprises two layers.
Preferably, the cable core is externally extruded with a heat insulation layer 。
The invention has the following beneficial effects:
according to the medium-voltage composite fireproof cable with the temperature measurement control system, the heat conduction efficiency inside the fireproof cable can be effectively improved through the arrangement of the metal shielding layer, the seamless pipe and the heat conduction metal belt; through the setting of thermal-insulated flame retardant coating, can balanced cable core internal temperature and prevent the local high temperature and probably to the thermal damage that the cable core caused.
The application provides a compound fire-resistant cable of middling pressure with temperature measurement control system, through seamless pipe, temperature measurement light unit, temperature measurement system, fire control water pipe and automatically controlled valve's setting, temperature measurement light unit can realize temperature real-time supervision to cable length direction arbitrary point, and when the automatically controlled valve was opened, the intraductal water of fire control water can be continuous flow into in the seamless pipe, and continuous water service makes the intraductal temperature of cable be less than cable insulation and permits long-term operation maximum temperature in the seamless pipe to ensure the long-term reliable work of cable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a cable body of the present invention;
FIG. 2 is a schematic diagram of the front of the structure of the present invention;
in the figure: 1. a seamless tube; 2. a temperature measuring light unit; 3. a thermally conductive metal strip; 4. a conductor; 5. a conductor shielding layer; 6. an insulating layer; 7. an insulating shielding layer; 8. a metal shielding layer; 9. a thermal insulation layer; 10. fire-resistant wrapping tape; 11. an outer sheath; 12. a cable termination; 13. copper pipe branches; 14. an electric control valve; 15. a fire hose; 16. a cable body; 17. a temperature measurement system; 18. and (3) an overflow pipe.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Referring to fig. 1, a medium voltage composite fire-resistant cable with a temperature measurement control system comprises a cable body 16, wherein the cable body 16 comprises a cable outer sheath 11, a heat insulation fire-resistant layer and a cable core from outside to inside, the outer surface of the cable core is coated with the heat insulation fire-resistant layer, the outer surface of the heat insulation fire-resistant layer is extruded with the cable outer sheath 11, the heat insulation fire-resistant layer comprises a heat insulation layer 9 and a fire-resistant wrapping belt 10 wrapping the outer surface of the heat insulation layer 9, and the outer surface of the cable core is extruded with the heat insulation layer 9.
Through the setting of thermal-insulated flame retardant coating, when the cable lays the route place and breaks out the conflagration, the thermal-insulated layer in the cable plays the internal temperature of balanced cable core and prevents that local high temperature from probably causing the thermal damage to the cable core.
The cable core comprises three circumferentially distributed phase wire cores, three seamless pipes 1, a temperature measuring light unit 2 and a heat conducting metal belt 3, wherein the gap between the outer parts of two adjacent phase wire cores is provided with the seamless pipe 1, the gap between the outer parts of any two adjacent phase wire cores is provided with the temperature measuring light unit 2 with the temperature measuring function, when the three phase wire cores, the seamless pipe 1 and the temperature measuring light unit 2 are twisted, the outer surfaces of the three phase wire cores are wrapped with two layers of heat conducting metal belts 3,
as can be seen from the above description of the cable core, the temperature measuring optical unit 2 can realize real-time temperature monitoring on any point along the length direction of the cable body 16.
The phase core comprises a conductor 4, a conductor shielding layer 5 wrapping the outer surface of the conductor 4, an insulating layer 6 wrapping the outer surface of the conductor shielding layer 5, an insulating shielding layer 7 wrapping the outer surface of the insulating layer 6 and a metal shielding layer 8 wrapping the outer surface of the insulating shielding layer 7 from inside to outside.
The seamless pipe 1 is a metal pipe, and the seamless pipe 1 is a seamless copper pipe or a seamless aluminum pipe; when the seamless pipe 1 is a seamless aluminum pipe, the metal shielding layer 8 and the heat conducting metal belt 3 are both made of aluminum alloy belts; when the seamless pipe 1 is a seamless copper pipe, the metal shielding layer 8 and the heat conducting metal belt 3 are both made of copper alloy belts.
Through the arrangement of the metal shielding layer 8, the heat conducting metal belt 3 and the seamless pipe 1, when the metal shielding layer 8, the heat conducting metal belt 3 and the seamless pipe 1 are in contact, the heat conduction efficiency inside the fire-resistant cable can be improved; the heat insulation fire-resistant layer and the metal shielding layer 8, the heat conduction metal belt 3 and the seamless pipe 1 are matched to make the fire-resistant cable have the function of passive heat insulation and temperature reduction.
Referring to fig. 1 and 2, the medium-voltage composite fire-resistant cable with the temperature measurement control system provided by the application further has an active cooling function, after the medium-voltage composite fire-resistant cable with the temperature measurement control system is laid, cable terminal ends 12 are installed at two ends of a cable body 16, three seamless pipes 1 are led out of the cable body 16 and are converged together through copper pipe branches 13, a high-level side communicating electric control valve 14 is connected with a fire-fighting water pipe 15, a low-level side communicating electric control valve is connected with an overflow pipe 18, and a temperature measuring optical unit 2 is connected with a temperature measuring system 17.
When a fire accident occurs in the laying path of the cable body 16, the temperature of the fire scene rises to be heated through a section of the cable in the area, when the fire scene continues and the sensing temperature of the temperature measuring light unit 2 in the cable reaches the preset trigger temperature, the temperature measuring system 17 gives out a control signal to enable the electric control valve 14 to be in an open state, fire water is injected into the three seamless pipes 1 through the copper pipe branches 13 through the fire water pipe 15, water flow takes away heat in the cable core to the other end of the cable and is discharged through the copper pipe branches 13 and the overflow pipe 18, so that the cable core of the cable body 16 is cooled continuously, the cable is ensured not to be influenced by the high temperature of the fire scene, and continuous safe and reliable operation is ensured. The triggering control signal of the electric control valve 14 can also be given by an automatic fire alarm system related to the cable laying section.
The temperature measuring light unit 2 in the present application is a temperature measuring optical fiber unit, and in some embodiments of the present application, the temperature measuring system 17 adopts a distributed optical fiber temperature measuring intelligent monitoring system published by application number CN 202011605761.1.
The present application is further described below by way of one embodiment of the present application.
In this embodiment of the present application, the seamless tube 1 is a seamless copper tube, the metal shielding layer 8 and the heat conducting metal belt 3 are both copper alloy belts, and the triggering control signal of the electric control valve 14 is given by the temperature measuring system 17.
The cable body 16 comprises three phase wire cores which are composed of conductors 4, conductor shielding layers 5, insulating layers 6, insulating shielding layers 7 and metal shielding layers 8, three seamless copper tubes are arranged in gaps outside adjacent phase wire cores, a temperature measuring light unit 2 with a temperature measuring function is arranged in the gap outside any adjacent phase wire core, a cable core is formed by wrapping two layers of heat conducting metal strips 3 on the outer layer after twisting, a heat insulation layer 9 is extruded outside the cable core, two layers of fire-resistant wrapping belts 10 are wrapped outside the cable core, and finally an outer cable sheath 11 is extruded.
After the medium-voltage composite fire-resistant cable with the temperature measurement control system is laid, cable terminal ends 12 are arranged at two ends of a cable body 16, three seamless copper pipes led out of the cable body 16 are converged together through copper pipe branches 13, a high-level side communicated electric control valve 14 is connected with a fire-fighting water pipe 15, a low-level side is connected with an overflow pipe 18, and a temperature measuring light unit 2 is connected with a temperature measuring system 17.
When fire occurs in the laying section of the cable body 16, the temperature of a fire scene rises to be heated through a section of the cable in the area, when the fire scene continues and the sensing temperature of the temperature measuring light unit 2 in the cable reaches the preset trigger temperature, the temperature measuring system 17 gives out a control signal to enable the electric control valve 14 to be in an open state, fire water is injected into three seamless copper pipes through the copper pipe branch 13 through the fire water pipe 15, water flow takes heat in the cable core away to the other end of the cable and is discharged through the copper pipe branch 13 and the overflow pipe 18, so that the cable core of the cable body 16 is cooled continuously, the cable is ensured not to be influenced by the high temperature of the fire scene, and continuous safe and reliable operation is ensured.
In summary, the medium-voltage composite fireproof cable with the temperature measurement control system improves the fireproof performance of the medium-voltage composite fireproof cable from the two aspects of passive heat insulation and cooling and active cooling, so that the medium-voltage composite fireproof cable is not influenced by fire time limit and fire scene temperature during use.
Finally, it should be noted that: the electrical components referred to in the present application are all available in the market and are all the prior art, and the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. The medium-voltage composite fire-resistant cable with the temperature measurement control system comprises a cable body (16) and a temperature measurement system (17), and is characterized in that cable terminal ends (12) are installed at two ends of the cable body (16), a copper pipe branch (13) is fixedly connected to the high-position end of the cable body (16), the other end of the copper pipe branch (13) is connected with a fire-fighting water pipe (15) through an electric control valve (14), and an overflow pipe (18) is fixedly connected to the low-position end of the cable body (16);
the cable body (16) comprises a cable core, the outer surface of the cable core is coated with a heat-insulating fire-resistant layer, and the outer surface of the heat-insulating fire-resistant layer is extruded with a cable outer sheath (11);
the cable core comprises a phase wire core, a seamless pipe (1) connected with a copper pipe branch (13) and an overflow pipe (18), a temperature measuring light unit (2) connected with a temperature measuring system (17) and a heat conducting metal belt (3), wherein the seamless pipe (1) is arranged between two adjacent phase wire cores, one temperature measuring light unit (2) with a temperature measuring function is arranged between any adjacent phase wire core, the seamless pipe (1) and the temperature measuring light unit (2) are twisted, the heat conducting metal belt (3) is wrapped on the outer layer of the twisted phase wire core, the phase wire core comprises a conductor (4), a conductor shielding layer (5) wrapped on the outer surface of the conductor (4), an insulating layer (6) wrapped on the outer surface of the conductor shielding layer (5), an insulating shielding layer (7) wrapped on the outer surface of the insulating layer (6) and a metal shielding layer (8) wrapped on the outer surface of the insulating shielding layer (7);
the heat-insulating fireproof layer comprises a heat-insulating layer (9) and a fireproof wrapping belt (10) wrapping the outer surface of the heat-insulating layer (9).
2. A medium voltage composite fire resistant cable with temperature measurement control system according to claim 1 characterized in that the temperature measuring light unit (2) is located between the gaps outside any adjacent phase conductor, the seamless tube (1) being located between the gaps outside two adjacent phase conductors.
3. The medium voltage composite fire resistant cable with temperature measurement control system according to claim 1 wherein the phase wires are three, the three phase wires being circumferentially distributed.
4. A medium voltage composite fire resistant cable with temperature measurement control system according to claim 1 characterized in that the heat conducting metal tape (3) has two layers.
5. A medium voltage composite fire resistant cable with temperature measurement control system according to claim 3 characterized in that the number of the seamless tubes (1) is three, the high end of the three seamless tubes (1) is converged together through copper tube branches (13), the other end of the seamless tubes (1) is connected with an overflow tube (18), and the seamless tubes (1) are seamless copper tubes or seamless aluminum tubes.
6. The medium voltage composite fire resistant cable with temperature measurement control system according to claim 5 characterized in that when the seamless tube (1) is a seamless aluminum tube, the metal shielding layer (8) and the heat conducting metal belt (3) are both made of aluminum alloy belts; when the seamless pipe (1) is a seamless copper pipe, the metal shielding layer (8) and the heat conducting metal belt (3) are both made of copper alloy belts.
7. A medium voltage composite fire resistant cable with temperature measurement control system according to claim 1 characterised in that the fire resistant wrapping tape (10) has two layers.
8. Medium voltage composite fire resistant cable with temperature measurement control system according to claim 1 characterized in that the cable core is extruded with a heat insulation layer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310422837.4A CN116543967A (en) | 2023-04-19 | 2023-04-19 | Medium-voltage composite fire-resistant cable with temperature measurement control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310422837.4A CN116543967A (en) | 2023-04-19 | 2023-04-19 | Medium-voltage composite fire-resistant cable with temperature measurement control system |
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|---|---|
| CN116543967A true CN116543967A (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310422837.4A Pending CN116543967A (en) | 2023-04-19 | 2023-04-19 | Medium-voltage composite fire-resistant cable with temperature measurement control system |
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|---|---|---|---|---|
| JPS5456187A (en) * | 1977-10-12 | 1979-05-04 | Sumitomo Electric Ind Ltd | Power cable cooling |
| CN103262177A (en) * | 2010-12-15 | 2013-08-21 | Abb技术有限公司 | High voltage electric cable |
| CN106710689A (en) * | 2015-11-18 | 2017-05-24 | 通用（天津）铝合金产品有限公司 | High-current-carrying-capacity armored cable |
| CN105976904A (en) * | 2016-05-05 | 2016-09-28 | 芜湖诚通自动化设备有限公司 | Manufacturing process for low-smoke halogen-free fireproof heat-insulating composite power cable |
| CN107545953A (en) * | 2016-06-23 | 2018-01-05 | 上海市高桥电缆厂有限公司 | CA cable assembly |
| CN109215873A (en) * | 2018-09-25 | 2019-01-15 | 山东大学 | The cooling charging cable of liquid and electric vehicle rapid charging equipment |
| CN210722558U (en) * | 2018-11-02 | 2020-06-09 | 江苏亨通电力电缆有限公司 | Medium-voltage fireproof cable for intelligent early warning communication |
| KR20210055001A (en) * | 2019-11-06 | 2021-05-14 | 엘에스전선 주식회사 | Charging cable assembly for electric vehicle |
| CN217506991U (en) * | 2021-12-31 | 2022-09-27 | 上海浦东电线电缆(集团)有限公司 | High-power direct current fills electric pile cable for liquid-cooled new energy automobile |
| CN217280193U (en) * | 2022-01-18 | 2022-08-23 | 深圳宝兴电线电缆制造有限公司 | Charging cable |
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