CN111786281A

CN111786281A - Anti-ablation electrical high-voltage cabinet with temperature measurement system

Info

Publication number: CN111786281A
Application number: CN202010702105.7A
Authority: CN
Inventors: 戴裕; 袁佳; 徐根良
Original assignee: Changshu Yingde Gas Co ltd
Current assignee: Changshu Yingde Gas Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-16

Abstract

The invention discloses an anti-ablation electrical high-voltage cabinet with a temperature measurement system, which comprises a cabinet body, a handcart and a second bridge, wherein a circuit breaking chamber is arranged on the front side in the cabinet body, an instrument chamber is arranged on the upper side of the front end of the cabinet body, a grounding mechanism is arranged on the lower side of the front end of the cabinet body, an emergency fire extinguishing device is arranged at the top of the cabinet body, a cooling device is arranged on the upper rear side in the cabinet body, a bus chamber is arranged on the rear side in the cabinet body, and a cable bridge is arranged behind the cabinet body. This prevent electric high-voltage board of ablating with temperature measurement system is provided with temperature sensor and display screen, and binding post and inlet wire static contact junction and binding post and the static contact junction of being qualified for the next round of competitions all are provided with temperature sensor, and temperature sensor continuously monitors the temperature information of junction and sends to signal processor, and signal processor sends the temperature to display screen and control center, and the person on duty of being convenient for discovers unusual intensification fast, in time discovers and handles the accident.

Description

Anti-ablation electrical high-voltage cabinet with temperature measurement system

Technical Field

The invention relates to the technical field of electric high-voltage cabinets, in particular to an anti-ablation electric high-voltage cabinet with a temperature measurement system.

Background

With the rapid development of the automation of the power distribution network and the increasing improvement of the power supply reliability, the requirements on the switch cabinet are higher and higher, and particularly, when the power substation gradually realizes the comprehensive automation without being on duty, higher requirements are provided for the monitoring of the operation state of the switch cabinet.

The existing high-voltage cabinet is not provided with an automatic monitoring system, and in the long-term operation process of the high-voltage cabinet, a power cable is aged, contacts of a switch are heated due to aging or overlarge contact resistance, long-term heavy current, the cable and the switch are operated under high load, contact ablation or high-temperature deformation and carbonization of an insulating isolation cover are easily caused, accidents are easily caused, in addition, the existing high-voltage cabinet is not provided with an automatic fire extinguishing device, once short circuit and fire are caused, a person on duty is far away from the high-voltage cabinet, the fire extinguishing treatment is difficult to be carried out in the first time, in addition, the power cable and a control cable of the existing high-voltage cabinet are usually laid in a mixed mode, but a large amount of heat is easily generated when the power cable is electrified, the optical fiber in the control cable is greatly influenced by temperature and heat for a long time.

Disclosure of Invention

The invention aims to provide an anti-ablation electric high-voltage cabinet with a temperature measurement system, which solves the problems that the prior high-voltage cabinet is not provided with an automatic monitoring system, the high-voltage cabinet is aged in the long-term operation process, a contact of a switch is heated due to aging or overlarge contact resistance and long-term heavy current, the cable and the switch are heated in high-load operation, contact ablation or high-temperature deformation and carbonization of an insulating isolation cover are easily caused, accidents are easily caused, the prior high-voltage cabinet is not provided with an automatic fire extinguishing device, once short circuit and fire happen, a person on duty is far away from the high-voltage cabinet, the fire extinguishing treatment is difficult to be carried out at the first time, the power cable and a control cable of the prior high-voltage cabinet are usually mixed and laid, but a large amount of heat is easily generated when the power cable is electrified, and optical fibers in the control cable are greatly influenced by temperature and long-term, the service life is easily shortened.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an ablation-proof electric high-voltage board with temperature measurement system, includes the cabinet body, handcart and second crane span structure, the internal portion front side of cabinet is provided with the room that opens circuit, and cabinet body front end upper side is provided with the instrument room, cabinet body front end downside is provided with ground mechanism, cabinet body top is provided with urgent extinguishing device, and the internal portion back upside of cabinet is provided with the heat sink, the internal portion rear side of cabinet is provided with the bus-bar room, and cabinet body rear is provided with the cable crane span structure, the room that opens circuit includes:

the handcart is arranged at the top of the guide rail in a sliding mode, a circuit breaker is arranged at the top of the handcart, a wiring terminal is arranged on the rear side of the circuit breaker, a temperature sensor is arranged on the outer side of the wiring terminal, a display screen is arranged on the front side of the cabinet body, and a signal processor is arranged in the display screen;

the cooling extinguishing device comprises:

the steel cylinder is a high-pressure-resistant metal container, liquid carbon dioxide is arranged in the steel cylinder, the front end of the steel cylinder is communicated with the top of the breaking chamber, and a high-pressure electromagnetic valve is arranged at the position where the steel cylinder is communicated with the breaking chamber;

the heat sink includes:

the bus chamber comprises a cabinet body, a cabinet body and a bus chamber, wherein the cabinet body is provided with an opening, a variable frequency fan is attached to the inside of the opening, the upper side of the bus chamber is communicated with the upper side of the circuit breaking chamber through the opening, a supporting plate is arranged on the rear side of the opening, heat exchange fins are arranged at the top of the supporting plate, water cooling pipes penetrate through the inside of the heat exchange fins, the right ends of the water cooling pipes penetrate through a sealing plate and are communicated with a water chilling unit, the water chilling unit is arranged on the right side of the cabinet body, the sealing plate penetrates through the;

the bus bar compartment includes:

the partition plate is arranged between the bus chamber and the circuit breaking chamber, the rear side of the partition plate is provided with an incoming line static contact and an outgoing line static contact, the incoming line static contact and the outgoing line static contact both penetrate through the partition plate and are electrically connected with the circuit breaker, the rear end of the cabinet body penetrates through an incoming line power cable and an outgoing line power cable, the incoming line power cable is electrically connected with the incoming line static contact, and the outgoing line power cable is electrically connected with the outgoing line static contact;

the cable tray includes:

the first bridge is of a metal steel frame structure, the first bridge is arranged on the left side of the rear of the cabinet body, the second bridge is arranged on the right side of the rear of the cabinet body, the upper side of the second bridge and the upper side of the first bridge are provided with upper wire grooves, and the lower side of the second bridge and the lower side of the first bridge are provided with lower wire grooves.

Preferably, the signal processor is electrically connected with the temperature sensor, the variable frequency fan, the water chilling unit, the display screen and the high-voltage electromagnetic valve.

Preferably, the place where the steel cylinder is communicated with the breaking chamber is positioned right above the wiring terminal.

Preferably, the heat exchange fins are uniformly arranged on the top of the supporting plate and made of aluminum alloy.

Preferably, the water-cooling tubes are uniformly welded on the heat exchange fins, and are made of copper.

Preferably, the sealing plate is connected with the cabinet body in a fitting and sealing manner.

Preferably, the number of the air ducts is two, and the two air ducts are symmetrically arranged by taking the cabinet body as the center.

Preferably, the minimum through-flow cross-sectional dimension of the air duct is equal to half of the minimum through-flow cross-sectional dimension of the variable-frequency air duct.

Preferably, the incoming line power cable is laid inside a lower slot of the first bridge, the outgoing line power cable is laid inside a lower slot of the second bridge, the control cable is laid inside an upper slot of the first bridge and the upper slot of the second bridge, and the control cable is connected with the instrument room.

Compared with the prior art, the invention has the beneficial effects that: the anti-ablation electric high-voltage cabinet with the temperature measuring system,

(1) the temperature sensor and the display screen are arranged, the temperature sensor is arranged at the connecting position of the wiring terminal and the inlet static contact and the connecting position of the wiring terminal and the outlet static contact, the temperature sensor continuously monitors the temperature information at the connecting position and sends the temperature information to the signal processor, and the signal processor sends the temperature information to the display screen and the control center, so that an operator on duty can quickly find abnormal temperature rise and timely find and process accidents;

(2) the high-temperature-resistant fire extinguishing device is provided with a steel cylinder, liquid carbon dioxide and a high-pressure electromagnetic valve, when the temperature sensor monitors abnormal high temperature, the signal processor opens the high-pressure electromagnetic valve, the liquid carbon dioxide in the steel cylinder rushes into the inside of the breaking chamber, the oxygen concentration in the breaking chamber is quickly reduced, and meanwhile, the liquid carbon dioxide vaporizes and absorbs heat, so that the temperature in the breaking chamber is quickly reduced, the fire extinguishing treatment is conveniently carried out remotely, and the high-temperature-resistant fire extinguishing;

(3) the water cooling unit is provided with the variable frequency fan and the water cooling pipe, the cooling medium is conveyed into the water cooling pipe by the water cooling unit, the cooling capacity on the surface of the water cooling pipe is conducted by the heat exchange fins, the heat exchange area is increased, meanwhile, the variable frequency fan blows air inside the cabinet body, the heat exchange efficiency between the air and the cooling pipe is improved, the interior of the cabinet body is conveniently and quickly cooled, meanwhile, the rotating speed of the variable frequency fan and the flow speed of the cooling medium in the water cooling pipe are controlled according to temperature information monitored by the temperature sensor, regulation and control are facilitated according to actual conditions, the working efficiency of the cooling device is;

(4) the control cable is laid inside the lower wire groove, so that the control cable is far away from the incoming line power cable and the outgoing line power cable, the influence of heat generated when the incoming line power cable and the outgoing line power cable are electrified on the control cable is avoided, and the service life of the control cable is prolonged.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic rear view of a cross-sectional structure of the present invention;

FIG. 3 is a schematic diagram of a left side view cross-sectional structure of the present invention;

FIG. 4 is a schematic left side view of the present invention;

FIG. 5 is a schematic top view of the cross-sectional structure of the present invention;

fig. 6 is a schematic diagram of the work flow structure of the present invention.

In the figure: 1. the intelligent cabinet comprises a cabinet body, 2, a breaking room, 20, a guide rail, 21, a handcart, 22, a circuit breaker, 23, a wiring terminal, 24, a temperature sensor, 25, a display screen, 26, a signal processor, 3, an instrument room, 4, a grounding mechanism, 5, an emergency fire extinguishing device, 50, a steel cylinder, 51, liquid carbon dioxide, 52, a high-voltage electromagnetic valve, 6, a temperature reducing device, 60, an opening, 61, a variable-frequency fan, 62, a supporting plate, 63, a heat exchange fin, 64, a water cooling pipe, 65, a sealing plate, 66, a water chilling unit, 67, an air duct, 7, a bus room, 70, a partition plate, 71, an inlet static contact, 72, an outlet static contact, 73, an inlet power cable, 74, an outlet power cable, 8, a cable bridge, 80, a first bridge, 81, a second bridge, 82, an upper wire groove, 83, a lower wire groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an ablation-proof electric high-voltage board with temperature measurement system, as shown in fig. 1 and fig. 2, the inside front side of the cabinet body 1 is provided with the room 2 that opens circuit, and 1 front end upper side of the cabinet body is provided with

instrument room

3, 1 front end downside of the cabinet body is provided with

ground mechanism

4, 1 top of the cabinet body is provided with emergency fire extinguishing device 5, and the upside is provided with heat sink 6 behind the 1 inside of the cabinet body, the 1 inside rear side of the cabinet body is provided with bus-

bar room

7, and 1 rear of the cabinet body is provided with cable testing bridge 8, the room: guide rail 20, it tiles in 2 bottoms of breaking chamber, handcart 21 slides and sets up at guide rail 20 tops, and handcart 21 top is provided with circuit breaker 22, circuit breaker 22 rear side is provided with binding post 23, and the binding post 23 outside is provided with temperature sensor 24, cabinet body 1 front side sets up display screen 25, and the inside signal processor 26 that is provided with of display screen 25, signal processor 26 and temperature sensor 24, variable frequency fan 61, cooling water set 66, the connected mode between display screen 25 and the high-pressure solenoid valve 52 is electric connection, temperature sensor 24 monitors temperature information, the operating conditions in the high-voltage board is known in real time to the personnel on duty of being convenient for.

As shown in fig. 1, 3 and 4, the temperature-reducing fire-extinguishing device 5 includes: steel bottle 50, it is high-pressure resistant metal container, steel bottle 50 is located binding post 23 with 2 intercommunication departments in the breaking chamber directly over, open high-pressure solenoid valve 52, liquid carbon dioxide 51 leaves steel bottle 50 and sprays to two binding post 23, be convenient for cool down the fire extinguishing process to the point of igniting of rising temperature fast, the inside liquid carbon dioxide 51 that is provided with of steel bottle 50, and the 50 front ends of steel bottle are linked together with 2 tops in the breaking chamber, steel bottle 50 is provided with high-pressure solenoid valve 52 with 2 intercommunication departments in the breaking chamber, heat sink 6 includes: opening 60, its inside laminating is provided with variable frequency fan 61, be linked together through opening 60 between 7 upsides in generating line room and the 2 upsides in room that opens circuit, and the opening 60 rear side is provided with backup pad 62, backup pad 62 top is provided with heat transfer fin 63, and the inside water-cooled tube 64 that has run through of heat transfer fin 63, the even setting of heat transfer fin 63 is at backup pad 62 top, and heat transfer fin 63's material is the aluminum alloy, and the area of contact is improved, be convenient for the air in the cabinet body 1 fast with the cooling medium in the water-cooled tube 64 heat transfer, the even welding of water-cooled tube 64 is on heat transfer fin 63, and the material of water-cooled tube 64 is copper, the even conduction of cold volume of the cooling medium in the water.

As shown in fig. 1, fig. 5 and fig. 6, water-cooling pipe 64 right-hand member runs through closing plate 65 and is linked together with cooling water set 66, and cooling water set 66 sets up right-hand at the cabinet body 1, the connected mode between closing plate 65 and the cabinet body 1 is laminating sealing connection, play and seal cabinet body 1, avoid the effect that air conditioning leaks, closing plate 65 runs through the upper right side setting of the cabinet body 1, cabinet body 1 both sides are provided with wind channel 67, and wind channel 67 both ends are linked together with 2 downside and the generating line room 7 downside of breaking the circuit respectively, wind channel 67 is provided with two, and two wind channels 67 use cabinet body 1 to be the symmetrical formula setting as the center, the minimum through-flow cross section size of wind channel 67 equals half of the minimum through-flow cross section size of frequency conversion wind channel 67, be convenient for the even through breaking the circuit room 2 and the generating: a partition board 70 disposed between the bus bar room 7 and the breaker room 2, wherein an incoming static contact 71 and an outgoing static contact 72 are disposed at the rear side of the partition board 70, the incoming static contact 71 and the outgoing static contact 72 both penetrate the partition board 70 and are electrically connected with the breaker 22, an incoming power cable 73 and an outgoing power cable 74 penetrate the rear end of the cabinet body 1, the incoming power cable 73 is electrically connected with the incoming static contact 71, the outgoing power cable 74 is electrically connected with the outgoing static contact 72, the incoming power cable 73 is laid inside an outgoing slot 83 of a first bridge 80, the outgoing power cable 74 is laid inside an outgoing slot 83 of a second bridge 81, a control cable 9 is laid inside an upper slot 82 of the first bridge 80 and the second bridge 81, and the control cable 9 is connected with the meter room 3, such that the incoming power cable 73 and the control cable 9 and the outgoing power cable 74 and another group of control cables 9 are separately disposed, reduce the influence that the heat that inlet wire power cable 73 and the power cable 74 of being qualified for the next round of competitions gived off caused control cable 9, prolong control cable 9's life, cable testing bridge 8 includes: first crane span structure 80, it is the metal steel frame construction, and first crane span structure 80 sets up in cabinet body 1 rear left side, and second crane span structure 81 sets up on cabinet body 1 rear right side, and second crane span structure 81 all is provided with wire casing 82 with first bridge upside, and second crane span structure 81 all is provided with wire casing 83 down with first crane span structure 80 downside simultaneously.

The working principle is as follows: when the ablation-proof electric high-voltage cabinet with the temperature measuring system is used, the model of the temperature sensor 24 is WRP-130, the model of the signal processor 26 is TMS320F28016PZA, the model of the high-voltage electromagnetic valve 52 is ZCZG, the handcart 21 is pushed to move backwards along the guide rail 20 until two wiring terminals 23 on the rear side of a circuit breaker 22 on the top of the handcart 21 are electrically connected with an incoming line static contact 71 and an outgoing line static contact 72 respectively, the circuit is controlled and monitored through the instrument room 3, the grounding mechanism 4 plays an emergency protection role, an external power supply is connected, the high-voltage cabinet is electrified, heat is generated at the connection part of the incoming line power cable 73 and the wiring terminal 23 and the connection part of the other wiring terminal 23 and the outgoing line power cable 74, the temperature sensor 24 monitors temperature information, the signal processor 26 processes the information and sends the information to the display screen 25 and the control center, so that a, the water chilling unit 66 is started, the water chilling unit 66 conveys a low-temperature medium into the water cooling pipe 64, the cold energy in the low-temperature medium is conducted to the heat exchange fins 63, the heat exchange fins 63 increase the heat exchange area, the variable frequency fan 61 is started, the variable frequency fan 61 blows the air in the cabinet body 1, the air passes through the breaking chamber 2, the air channel 67 and the bus chamber 7 to form a circulating channel, meanwhile, the air completes heat exchange through the heat exchange fins 63, the temperature inside the cabinet body 1 is conveniently reduced, meanwhile, the signal processor 26 controls the power of the variable frequency fan 61 and the water chilling unit 66 according to the monitoring information of the temperature sensor 24, the refrigerating capacity is conveniently controlled according to the actual use requirement, the waste of the cold energy is reduced, the power supply of the high-voltage cabinet is automatically cut off when the temperature of a movable monitoring point is too high, the high-voltage electromagnetic valve 52 is simultaneously opened, the liquid carbon dioxide 51, meanwhile, the liquid carbon dioxide 51 is vaporized to absorb heat, so that the temperature in the breaking chamber 2 is quickly reduced, fire caused by overhigh waste heat temperature is avoided, the incoming power cable 73 is laid in the upper wire slot 82 on the first bridge 80, the outgoing power cable 74 is laid in the upper wire slot 82 on the second bridge 81, the two groups of control cables 9 are respectively laid in the lower wire slots 83 on the first bridge 80 and the second bridge 81, the two groups of control cables 9 are separately laid between the incoming power cable 73 and the outgoing power cable 74, and the influence of heat generated when the outgoing power cable 74 and the incoming power cable 73 are electrified on the two groups of control cables 9 is avoided, so that the service life of the control cables 9 is prolonged, and all work is finished.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an electric high-voltage board of ablation prevention with temperature measurement system, includes the cabinet body (1), handcart (21) and second crane span structure (81), its characterized in that: the utility model discloses a cabinet, including cabinet body (1), cabinet body (1) inside front side is provided with the room of opening circuit (2), and cabinet body (1) front end upside is provided with instrument room (3), cabinet body (1) front end downside is provided with ground mechanism (4), cabinet body (1) top is provided with emergency fire extinguishing device (5), and the inside back upside of cabinet body (1) is provided with heat sink (6), the inside rear side of cabinet body (1) is provided with bus-bar room (7), and cabinet body (1) rear is provided with cable testing bridge (8), the room of opening circuit (2) include:

the handcart type intelligent cabinet is characterized by comprising guide rails (20) which are tiled at the bottom of a breaking chamber (2), a handcart (21) is arranged at the top of the guide rails (20) in a sliding mode, a circuit breaker (22) is arranged at the top of the handcart (21), a wiring terminal (23) is arranged on the rear side of the circuit breaker (22), a temperature sensor (24) is arranged on the outer side of the wiring terminal (23), a display screen (25) is arranged on the front side of the cabinet body (1), and a signal processor (26) is arranged in the display screen (25);

the cooling fire extinguishing device (5) comprises:

the steel cylinder (50) is a high-pressure-resistant metal container, liquid carbon dioxide (51) is arranged in the steel cylinder (50), the front end of the steel cylinder (50) is communicated with the top of the breaking chamber (2), and a high-pressure electromagnetic valve (52) is arranged at the communication position of the steel cylinder (50) and the breaking chamber (2);

the cooling device (6) comprises:

the intelligent cabinet is characterized by comprising an opening (60), a variable frequency fan (61) is attached to the interior of the opening (60), the upper side of a bus chamber (7) is communicated with the upper side of a breaking chamber (2) through the opening (60), a supporting plate (62) is arranged on the rear side of the opening (60), heat exchange fins (63) are arranged on the top of the supporting plate (62), water cooling pipes (64) penetrate through the interior of the heat exchange fins (63), the right ends of the water cooling pipes (64) penetrate through a sealing plate (65) to be communicated with a water chilling unit (66), the water chilling unit (66) is arranged on the right side of the cabinet body (1), the sealing plate (65) penetrates through the upper right side of the cabinet body (1), air ducts (67) are arranged on two sides of the cabinet body (1), and two ends of each air duct (;

the busbar compartment (7) comprises:

the device comprises a partition plate (70) arranged between a bus chamber (7) and a circuit breaking chamber (2), wherein an incoming line static contact (71) and an outgoing line static contact (72) are arranged on the rear side of the partition plate (70), the incoming line static contact (71) and the outgoing line static contact (72) both penetrate through the partition plate (70) and are electrically connected with a circuit breaker (22), an incoming line power cable (73) and an outgoing line power cable (74) penetrate through the rear end of the cabinet body (1), the incoming line power cable (73) is electrically connected with the incoming line static contact (71), and the outgoing line power cable (74) is electrically connected with the outgoing line static contact (72);

the cable tray (8) comprises:

first crane span structure (80), it is metal steel frame construction, first crane span structure (80) set up in the cabinet body (1) rear left side, second crane span structure (81) set up on the cabinet body (1) rear right side, and second crane span structure (81) all are provided with wire casing (82) with first bridge upside, and second crane span structure (81) all are provided with down wire casing (83) with first crane span structure (80) downside simultaneously.

2. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the signal processor (26) is electrically connected with the temperature sensor (24), the variable frequency fan (61), the water chilling unit (66), the display screen (25) and the high-voltage electromagnetic valve (52).

3. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the connection position of the steel cylinder (50) and the breaking chamber (2) is positioned right above the wiring terminal (23).

4. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the heat exchange fins (63) are uniformly arranged on the top of the support plate (62), and the heat exchange fins (63) are made of aluminum alloy.

5. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the water-cooling pipes (64) are uniformly welded on the heat exchange fins (63), and the water-cooling pipes (64) are made of copper.

6. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the connection mode between the sealing plate (65) and the cabinet body (1) is a joint sealing connection.

7. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the air duct (67) is provided with two, and the two air ducts (67) are symmetrically arranged by taking the cabinet body (1) as the center.

8. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the minimum through-flow cross-sectional dimension of the air duct (67) is equal to half of the minimum through-flow cross-sectional dimension of the variable-frequency air duct (67).

9. The anti-ablation electrical high-voltage cabinet with the temperature measurement system as claimed in claim 1, wherein: the incoming line power cable (73) is laid inside a lower wire groove (83) of a first bridge (80), the outgoing line power cable (74) is laid inside a lower wire groove (83) of a second bridge (81), a control cable (9) is laid inside an upper wire groove (82) of the first bridge (80) and the second bridge (81), and the control cable (9) is connected with the instrument room (3).