CN111969536A - Cable trench system - Google Patents
Cable trench system Download PDFInfo
- Publication number
- CN111969536A CN111969536A CN202010602440.XA CN202010602440A CN111969536A CN 111969536 A CN111969536 A CN 111969536A CN 202010602440 A CN202010602440 A CN 202010602440A CN 111969536 A CN111969536 A CN 111969536A
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- Prior art keywords
- cable
- drainage
- laying cavity
- cavity
- cooling
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a cable trench system, which comprises a cable trench body, wherein the cable trench body is provided with a cable laying cavity with an upper opening and a front-back through structure for laying cables, a cable trench cover plate for sealing the upper opening of the cable laying cavity is covered on the cable trench body, and the cable trench system is characterized by further comprising a dehumidifying device, an exhaust device, a cooling device and a drainage device. The advantage is used for getting rid of the moisture in the cable laying cavity through dehydrating unit, be used for realizing through exhaust apparatus that the hot-air is outwards discharged in the cable laying cavity, be used for reducing the temperature in the cable laying cavity through the heat sink, be used for realizing through drainage device that the ponding in the cable laying cavity is outwards discharged, above-mentioned device uses of mutually supporting, it can in time dispel the heat to the cable laying cavity to realize entire system, drainage and dehumidification are handled, in order to ensure that the cable of laying in it is normal and safe handling.
Description
Technical Field
The invention relates to the field of cable laying, in particular to a cable trench system.
Background
The cable trench is a pipeline used for laying and replacing electric power or telecommunication cable facilities and is usually buried underground, and comprises a cable trench body with a cable laying cavity and a cable trench cover plate which is covered on the cable trench body and used for sealing the upper part of the cable laying cavity, wherein the cable trench body is in a closed state after the cable trench cover plate is covered on the cable trench body, and a cable laid in the cable trench body can emit heat after being electrified, so that the heat is difficult to be quickly discharged; in addition, the cable pit is buried underground, the moisture of soil can make the inside tide of cable pit, if meet rainy day, water in the soil can enter into the cable laying cavity through the gap between cable pit apron and the cable pit body, aggravate the moisture in the cable pit, and lead to the inside ponding of cable pit, the moisture easily makes the cable take place to puncture, cause concentrated electric leakage, in case the cable takes place the electric leakage, just need salvage, and ponding can lead to salvageing and have great danger, there is great potential safety hazard.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cable trench system which has a simple structure and can timely dissipate heat, drain and dehumidify to ensure normal and safe use of cables laid in the cable trench system.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a cable pit system, includes the cable pit body, the cable pit body have the cable laying cavity that is used for laying cable that upper portion opening and front and back link up, cable pit body upper cover close be provided with be used for with the cable laying cavity's upper portion opening cover board that covers, still including being used for getting rid of the moisture in the cable laying cavity dehydrating unit, be used for realizing the cable laying cavity in the outside exhaust apparatus of hot gas, be used for reducing the temperature reduction device of the temperature in the cable laying cavity and be used for realizing the cable laying cavity in ponding outside exhaust drainage device.
The cable trench body include the bottom plate that the level set up, the both sides of bottom plate vertically be provided with left side board and right side board respectively, the left side board with the right side board set up at the interval side by side, the bottom plate with the left side board with the right side board between form the cable laying cavity, cable trench cover lid close the setting and be in the left side board with the right side board on, the inner wall of left side board on be provided with the cable support that is used for installing the cable. Above-mentioned cable pit body simple structure, cable support are used for laying installation of cable.
The dehumidifying device comprises a plurality of fans arranged in the cable laying cavity, the fans are arranged on the inner wall of the right side plate, and the fans are arranged at intervals from front to back. Above-mentioned dehydrating unit simple structure, it is effectual to dehumidify, and the rotation through the fan operates the moisture that can effectively get rid of in the cable laying cavity, keeps the drying of cable laying cavity, ensures the normal safe handling of the cable of laying in it.
The fans are uniformly distributed on the inner wall of the right side plate. A plurality of fan equipartitions set up for the dehumidification effect is comparatively even.
And a wire passing pipeline through which an electric connecting wire for electrically connecting the fan and an external power supply is arranged in the right side plate. The wiring device is used for laying electric connection lines, the whole structure is tidy and compact, the threading holes vertical to the central axis of the threading pipe can be penetrated in the right side plate corresponding to the installation position of each fan in specific installation, the threading holes through which power supply connection lines penetrate out are formed in the positions, corresponding to the threading holes, of the side portion of the threading pipe, and therefore each fan and an external power supply can be conveniently and independently electrically connected.
Exhaust apparatus including setting up cable trench cover on a plurality of blast pipes, it is a plurality of the blast pipe from preceding back interval setting, the vertical setting of lower extreme of blast pipe and with the cable laying cavity be linked together, the upper end level of blast pipe buckle and expose and set up subaerial. The exhaust pipe can exhaust hot air in the cable laying cavity outwards, and the exhaust pipe is matched with a fan to realize faster heat dissipation and ensure that the cable has good current-carrying capacity; meanwhile, the upper end of the exhaust pipe is horizontally bent, and the lower end of the exhaust pipe is vertically arranged, so that external water can be prevented from entering the cable laying cavity through the exhaust pipe to a certain extent.
The cooling device comprises a plurality of cooling boxes arranged outside the cable duct body, the cooling boxes are arranged at intervals in the front and at intervals, cooling bottles filled with cooling gas are arranged in the cooling boxes, and the cable laying cavity is connected with the cooling bottles through gas conveying pipelines. Above-mentioned heat sink simple structure opens the start-stop valve on the cooling bottle, can realize carrying the cooling gas in the cable laying cavity through gas transmission pipeline, realizes rapid cooling to ensure the stable safe handling of cable.
The cooling box including the box that has an inner chamber, the box on detachably lid close and be provided with the case lid, the cooling bottle set up the inner chamber in, gas conveying pipeline's one end pass the case lid with the gas outlet sealing connection of cooling bottle, gas conveying pipeline's the other end pass cable trench cover with cable laying cavity be linked together, gas conveying pipeline with cable trench cover between sealing connection. Above-mentioned cooling box simple structure, box and case lid separation set up the change of the cooling bottle of being convenient for, gas transmission pipeline's both ends respectively with cooling bottle and cable trench cover between sealing connection, ensure that gas can enter into the cable laying cavity totally without extravagant, improve the utilization ratio of the energy.
The cooling gas is low-temperature carbon dioxide. Low temperature carbon dioxide has a significant cooling effect.
The cable laying cavity is internally provided with a temperature monitor, and the temperature monitor is arranged above the cable support. The temperature monitoring instrument is used for monitoring the temperature in the cable laying cavity and transmitting the temperature value monitored in real time to the outside, so that the real-time monitoring of the temperature in the cable laying cavity is realized, the cable laying cavity is convenient to cool in time, and the temperature monitoring instrument is arranged above the cable support and is convenient to monitor the temperature value of the position where the cable is located accurately.
The whole cable trench system is externally provided with a control system, the temperature monitor transmits temperature data monitored in real time in the cable laying cavity to the control system, the control system can set an upper temperature limit value, a comparator arranged in the control system compares a temperature value fed back to the control system by real-time monitoring with the set upper temperature limit value, when the real-time temperature value is greater than the set upper temperature limit value, the control system gives an alarm, an opening and closing valve on a cooling bottle can be opened manually or through automatic control, cooling gas is conveyed into the cable laying cavity, and rapid cooling is realized, so that rush-repair personnel can carry out rush repair, the rush-repair time is shortened, and electric power is recovered earlier; when the real-time temperature value is smaller than the set upper temperature limit value, the alarm of the control system is turned off, and at the moment, the opening and closing valve on the cooling bottle can be manually or automatically controlled to be turned off, so that the use of cooling gas is saved.
Drainage device including setting up cable pit body outside with the length matched with drain box of cable pit body, the drain box in be provided with the water drainage tank that link up around, the up end of bottom plate be from the oblique terminal surface of left right side downward sloping, the right side board on be provided with a plurality of drainage channels that link up about, a plurality of drainage channel around interval set up, drainage channel from left right side downward sloping setting, drainage channel's bottom end left end with the right-hand member head of bottom plate meet, the drain box laminating set up the right side portion of cable pit body, the left side of drain box correspond drainage channel's position on be provided with and be used for making to pass through drainage channel exhaust water enter into the outlet in the water drainage tank. Accumulated water accumulated in the cable laying cavity enters the drainage box along the drainage channel through the upper end surface of the obliquely arranged bottom plate, so that the accumulated water in the cable laying cavity is drained, unsafe factors caused by the accumulated water are avoided, the structure is simple, and the drainage effect is good and stable; because the drainage box is through from beginning to end, the water that so follow drainage box outwards discharges in the cable laying cavity, avoids the discharged water to gather in the drainage box.
The bottom end face of the drainage groove is an inclined end face which is inclined downwards from front to back. The bottom end face of the drainage groove is an inclined end face which inclines downwards from front to back so as to realize that water in the drainage box is quickly discharged outwards.
Every the inner chamber of cooling case with the water drainage tank between be linked together through a drain pipe, the cooling case set up the top of water drainage case, the upper end setting of drain pipe be in the bottom of box with the inner chamber be linked together, the lower extreme of drain pipe with the water drainage tank be linked together. The structure realizes that water which is carelessly accumulated in the cooling box can enter the drainage box along the drainage pipe to be discharged outwards.
Compared with the prior art, the invention has the advantages that: be used for getting rid of the moisture in the cable laying cavity through dehydrating unit, be used for realizing through exhaust apparatus that the hot gas is outwards discharged in the cable laying cavity, be used for reducing the temperature in the cable laying cavity through the heat sink, be used for realizing through drainage device that ponding in the cable laying cavity is outwards discharged, above-mentioned device uses of mutually supporting, it can in time dispel the heat to the cable laying cavity to realize entire system, drainage and dehumidification are handled, use normally and safely in order to ensure the cable of laying in it.
Drawings
FIG. 1 is a schematic cross-sectional view illustrating a first embodiment of the present invention;
FIG. 2 is a schematic sectional view showing a structure of a drain tank according to the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a second embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows: as shown in fig. 1 and 2, a cable trench system comprises a cable trench body 1, wherein the cable trench body 1 is provided with a cable laying cavity 11 which is provided with an upper opening and runs through from front to back and is used for laying cables, a cable trench cover plate 2 which is used for sealing the upper opening of the cable laying cavity 11 is covered on the cable trench body 1, the cable trench system further comprises a dehumidifying device which is used for removing moisture in the cable laying cavity 11, an exhaust device which is used for exhausting air in the cable laying cavity 11 outwards, a cooling device which is used for reducing the temperature in the cable laying cavity 11 and a drainage device which is used for exhausting accumulated water in the cable laying cavity 11 outwards.
In this embodiment, the cable trench body 1 includes a bottom plate 101 disposed horizontally, a left side plate 102 and a right side plate 103 are vertically disposed on two sides of the bottom plate 101, the left side plate 102 and the right side plate 103 are disposed in parallel at an interval, a cable laying cavity 11 is formed between the bottom plate 101 and the left side plate 102 and the right side plate 103, a cable trench cover 2 is disposed on the left side plate 102 and the right side plate 103 in a covering manner, and a cable support 104 for installing a cable is disposed on an inner wall of the left side plate 102. The cable trench body 1 is simple in structure, and the cable support 104 is used for laying and installing cables.
In this particular embodiment, the dehumidification device comprises a plurality of fans 3 arranged inside the cabling cavity 11, the fans 3 being arranged on the inner wall of the right side plate 103, the plurality of fans 3 being arranged at intervals from front to rear. Above-mentioned dehydrating unit simple structure, it is effectual to dehumidify, and the rotation through fan 3 operates and can effectively get rid of the moisture in the cable laying cavity 11, keeps the drying of cable laying cavity 11, ensures the normal safe handling of the cable of laying in it.
In this embodiment, a plurality of fans 3 are uniformly distributed on the inner wall of the right side plate 103. The plurality of fans 3 are uniformly distributed, so that the dehumidifying effect is uniform.
In this embodiment, a wire conduit 1031 through which an electrical connection wire for electrically connecting the fan 3 with an external power source is passed is provided in the right side plate 103. The wiring device is used for arranging electric connection lines, the whole structure is tidy and compact, when the wiring device is installed, a threading hole perpendicular to the central axis of the threading pipe 1031 can be formed in the right side plate 103 corresponding to the installation position of each fan 3 in a penetrating mode, the threading hole through which a power supply connection line penetrates out is formed in the position, corresponding to each threading hole, of the side portion of the threading pipe 1031, and therefore each fan 3 and an external power supply can be conveniently and independently electrically connected.
In this embodiment, the exhaust device includes a plurality of exhaust pipes 21 provided on the cable trench cover 2, the plurality of exhaust pipes 21 are provided at intervals from front to rear, a lower end of the exhaust pipe 21 is vertically provided and communicates with the cable laying cavity 11, and an upper end of the exhaust pipe 21 is horizontally bent and exposed to the ground. The hot air in the cable laying cavity 11 can be discharged outwards through the exhaust pipe 21, and the heat dissipation is faster when the exhaust pipe is matched with the fan 3, so that the cable is ensured to have good current-carrying capacity; meanwhile, the upper end of exhaust pipe 21 is horizontally bent, and the lower end of exhaust pipe 21 is vertically arranged, so that external water can be prevented from entering cable laying cavity 11 through exhaust pipe 21 to a certain extent.
In this embodiment, the cooling device includes a plurality of cooling boxes 4 disposed outside the cable duct body 1, the plurality of cooling boxes 4 are disposed at intervals in front of and behind each other, a cooling bottle 41 filled with cooling gas is disposed inside the cooling box 4, and the cable laying cavity 11 is connected to the cooling bottle 41 through a gas transmission pipeline 42. Above-mentioned heat sink simple structure opens the start-stop valve on the cooling bottle 41, can realize carrying cooling gas in the cable laying cavity 11 through gas transmission pipeline 42, realizes rapid cooling to ensure the stable safe handling of cable.
In this embodiment, the cooling box 4 includes a box 402 having an inner cavity 401, a box cover 403 is detachably covered on the box 402, the cooling bottle 41 is disposed in the inner cavity 401, one end of the gas delivery pipe 42 passes through the box cover 403 to be hermetically connected with the gas outlet of the cooling bottle 41, the other end of the gas delivery pipe 42 passes through the cable trench cover 2 to be communicated with the cable laying cavity 11, and the gas delivery pipe 42 is hermetically connected with the cable trench cover 2. Above-mentioned cooling box 4 simple structure, box 402 and case lid 403 separation set up the change of the cooling bottle 41 of being convenient for, and gas transmission pipeline 42's both ends respectively with cooling bottle 41 and cable trench cover 2 between sealing connection, ensure that gas can enter into cable laying cavity 11 totally without wasting, improve the utilization ratio of the energy.
In this embodiment, the cooling gas is low temperature carbon dioxide. Low temperature carbon dioxide has a significant cooling effect.
In this embodiment, the temperature monitor 5 is disposed in the cable laying cavity 11, and the temperature monitor 5 is disposed above the cable holder 104. Utilize temperature monitor 5 to be used for detecting the temperature in cable laying cavity 11 to the temperature value that will monitor in real time outwards transmits, realizes the real time monitoring of temperature in cable laying cavity 11, is convenient for in time cool down the processing to cable laying cavity 11, and temperature monitor 5 sets up in cable support 104 top, is convenient for monitor the temperature value of comparatively accurate cable place.
In this embodiment, a control system (not shown in the figure) is arranged outside the whole cable trench system, the temperature monitor 5 transmits temperature data monitored in real time in the cable laying cavity 11 to the control system, an upper temperature limit value is set in the control system, a comparator arranged in the control system compares a temperature value fed back to the control system by real-time monitoring with the set upper temperature limit value, when the real-time temperature value is greater than the set upper temperature limit value, the control system gives an alarm, an opening and closing valve (not shown in the figure) on the cooling bottle 41 can be opened manually or through automatic control, cooling gas is conveyed into the cable laying cavity 11, and rapid cooling is realized, so that rush-repair personnel can rush-repair, the rush-repair time is shortened, and electric power is recovered earlier; when the real-time temperature value is smaller than the set upper temperature limit value, the alarm of the control system is turned off, and at the moment, the opening and closing of the opening and closing valve on the cooling bottle 41 can be manually or automatically controlled, so that the use of cooling gas is saved.
In this embodiment, the drainage device includes a drainage box 6 disposed outside the cable trench body 1 and matching the length of the cable trench body 1, a drainage channel 61 penetrating through the drainage box 6 from front to back is disposed in the drainage box 6, an upper end surface 1011 of the bottom plate 101 is an inclined end surface inclined downward from left to right, a plurality of drainage channels 1032 penetrating through the right and left are disposed on the right side plate 103, the plurality of drainage channels 1032 are disposed at intervals from front to back, the drainage channels 1032 are inclined downward from left to right, a left end of a bottom end surface of the drainage channels 1032 is connected to a right end of the bottom plate 101, the drainage box 6 is attached to the right side portion of the cable trench body 1, and a drainage port 62 for allowing water discharged through the drainage channels 1032 to enter the drainage channel 61 is disposed at a position corresponding to the drainage channels 1032 on the left. Accumulated water accumulated in the cable laying cavity 11 enters the drainage box 6 along the drainage channel 1032 through the upper end surface 1011 of the obliquely arranged bottom plate 101, so that the accumulated water in the cable laying cavity 11 is drained, unsafe factors caused by the accumulated water are avoided, the structure is simple, and the drainage effect is good and stable; since the drainage box 6 is perforated forward and backward, water drained from the cable laying cavity 11 can be drained outward through the drainage box 6, avoiding the drainage water from accumulating in the drainage box 6.
In this embodiment, the bottom end surface 611 of the drain groove 61 is an inclined end surface inclined downward from front to rear. The bottom end surface 611 of the drainage channel 61 is an inclined end surface inclined downward from front to back to realize rapid outward drainage of water in the drainage tank 6.
Example two: as shown in fig. 3, the other parts are the same as the first embodiment, except that the inner cavity 401 of each cooling box 4 is communicated with the drain groove 61 through a drain pipe 7, the cooling box 4 is arranged above the drain box 6, the upper end of the drain pipe 7 is arranged at the bottom of the box body 402 and is communicated with the inner cavity 401, and the lower end of the drain pipe 7 is communicated with the drain groove 61. The structure realizes that water which is carelessly accumulated in the cooling box 4 can enter the drainage box 6 along the drainage pipe 7 to be discharged outwards.
Claims (10)
1. The utility model provides a cable pit system, includes the cable pit body, the cable pit body have the cable laying cavity that is used for laying cable that upper portion opening and front and back link up, cable pit body upper cover close be provided with be used for with the cable laying cavity's upper portion opening cover the cable trench cover that covers, its characterized in that still including being used for getting rid of the moisture in the cable laying cavity dehydrating unit, be used for realizing the cable laying cavity in the outside exhaust apparatus of hot gas, be used for reducing the temperature reduction device of the temperature in the cable laying cavity and be used for realizing the outside exhaust drainage device of ponding in the cable laying cavity.
2. The cable trench system of claim 1, wherein the cable trench body comprises a bottom plate horizontally disposed, a left side plate and a right side plate are vertically disposed on two sides of the bottom plate respectively, the left side plate and the right side plate are juxtaposed and spaced apart, the bottom plate and the left side plate and the right side plate form the cable laying cavity therebetween, the cable trench cover plate is covered on the left side plate and the right side plate, and a cable support for mounting a cable is disposed on an inner wall of the left side plate.
3. A cable trench system as recited in claim 2, wherein said moisture removal means includes a plurality of fans disposed within said cable-laying cavity, said fans being disposed on an inner wall of said right side plate, said plurality of fans being spaced apart from one another from a front to a rear.
4. The cable duct system of claim 3, wherein the right side plate has a wire conduit disposed therethrough for electrical connection of the fan to an external power source.
5. The cable trench system of claim 1, wherein the exhaust device comprises a plurality of exhaust pipes disposed on the cable trench cover, the plurality of exhaust pipes being spaced apart from each other from the front to the rear, the lower ends of the exhaust pipes being vertically disposed and being in communication with the cable-laying cavity, and the upper ends of the exhaust pipes being horizontally bent and exposed to the ground.
6. The cable pit system of claim 2 or 5, wherein the cooling device comprises a plurality of cooling boxes disposed outside the cable pit body, the cooling boxes are spaced apart from one another in the front-rear direction, a cooling bottle filled with cooling gas is disposed in the cooling box, and the cable laying cavity is connected to the cooling bottle through a gas delivery pipe.
7. The cable duct system of claim 6, wherein the cooling box comprises a box body having an inner cavity, a cover is detachably disposed on the box body, the cooling bottle is disposed in the inner cavity, one end of the gas delivery pipe passes through the cover and is hermetically connected to the gas outlet of the cooling bottle, the other end of the gas delivery pipe passes through the cable duct cover and is communicated with the cable laying cavity, and the gas delivery pipe is hermetically connected to the cable duct cover.
8. A cable trench system as claimed in claim 6 wherein a temperature monitor is provided within the cable laying cavity, said temperature monitor being located above said cable support.
9. The cable trench system of claim 2 wherein said drain means comprises a drain box disposed outside said trench body and matching the length of said trench body, a water drainage groove which is communicated with the front and the back is arranged in the water drainage box, the upper end surface of the bottom plate is an inclined end surface which is inclined downwards from left to right, a plurality of drainage channels which are communicated from left to right are arranged on the right side plate, the drainage channels are arranged at intervals from front to back, the drainage channel is arranged from left to right in a downward inclination way, the left end of the bottom end surface of the drainage channel is connected with the right end of the bottom plate, the drainage box laminating set up the right side portion of cable pit body, the left side of drainage box correspond drainage channel's position on be provided with and be used for making the drainage channel discharged water enter into the outlet of water tank.
10. The cable trench system of claim 9 wherein said bottom end surface of said drainage channel is a sloped end surface sloping downwardly from front to back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010602440.XA CN111969536A (en) | 2020-06-29 | 2020-06-29 | Cable trench system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010602440.XA CN111969536A (en) | 2020-06-29 | 2020-06-29 | Cable trench system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111969536A true CN111969536A (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010602440.XA Pending CN111969536A (en) | 2020-06-29 | 2020-06-29 | Cable trench system |
Country Status (1)
| Country | Link |
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| CN (1) | CN111969536A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451976A (en) * | 2021-07-29 | 2021-09-28 | 广东电网有限责任公司 | Cable trench cover plate for construction |
| CN114301024A (en) * | 2021-12-20 | 2022-04-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Highway tunnel cable pit heat preservation, control by temperature change and dampproofing system that insulates against heat |
| CN116470452A (en) * | 2023-04-23 | 2023-07-21 | 河北鸿宇通信器材有限公司 | Air-conditioning integrated cable trough |
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| CN210111444U (en) * | 2019-07-30 | 2020-02-21 | 比亚迪股份有限公司 | Box type substation |
| US20200115880A1 (en) * | 2018-10-16 | 2020-04-16 | Novinium, Inc. | Methods of using triangulation to locate a manhole event in a system of underground vaults |
| CN210640672U (en) * | 2019-11-28 | 2020-05-29 | 史瑞丽 | Wire protection device for reducing wire loss |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04261919A (en) * | 1991-02-15 | 1992-09-17 | Nkk Corp | Combined structure under and on ground |
| CN204560429U (en) * | 2015-01-21 | 2015-08-19 | 云南省烟草农业科学研究院 | A kind of can the phytotron of accurate control room intrinsic parameter |
| CN106088150A (en) * | 2016-08-09 | 2016-11-09 | 国家电网公司 | Cable duct of substation Dampproof water-drainage device |
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| US20200115880A1 (en) * | 2018-10-16 | 2020-04-16 | Novinium, Inc. | Methods of using triangulation to locate a manhole event in a system of underground vaults |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113451976A (en) * | 2021-07-29 | 2021-09-28 | 广东电网有限责任公司 | Cable trench cover plate for construction |
| CN114301024A (en) * | 2021-12-20 | 2022-04-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Highway tunnel cable pit heat preservation, control by temperature change and dampproofing system that insulates against heat |
| CN116470452A (en) * | 2023-04-23 | 2023-07-21 | 河北鸿宇通信器材有限公司 | Air-conditioning integrated cable trough |
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Application publication date: 20201120 |