CN107390093A - A kind of high voltage cable malfunction monitoring panel type fault detector structure - Google Patents
A kind of high voltage cable malfunction monitoring panel type fault detector structure Download PDFInfo
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- CN107390093A CN107390093A CN201710811046.5A CN201710811046A CN107390093A CN 107390093 A CN107390093 A CN 107390093A CN 201710811046 A CN201710811046 A CN 201710811046A CN 107390093 A CN107390093 A CN 107390093A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 230000007257 malfunction Effects 0.000 title claims abstract description 14
- 230000002265 prevention Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 13
- 239000013307 optical fiber Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
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- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of high voltage cable malfunction monitoring panel type fault detector structure; including casing, protecting frame, short-circuit sensor, grounding sensor, panel main frame, instruction pipe and button pipe; installing frame is fixed with the casing, short-circuit sensor and grounding sensor are provided with the installing frame；The protecting frame is fixed in cabinets cavity; panel main frame is provided with the protecting frame inner chamber; instruction pipe and button pipe are plugged between wall box and the protecting frame side wall, is provided with color sensor in the instruction pipe, the color sensor is electrically connected on single-chip microcomputer.Very easily the warning indicator light on counter plate main frame and button remote operation and observation can also be carried out after being protected the invention enables plate main frame over there；And panel main frame test oneself go wrong when, electric pushrod can voluntarily drive panel main frame to be moved in the casing of protection, be convenient for repairing, highly promote.
Description
Technical field
The present invention relates to high voltage cable malfunction monitoring technical field, specially a kind of high voltage cable malfunction monitoring panel type
Fault detector structure.
Background technology
A large amount of uses of high voltage cable at present so that the fault rate of cable also accordingly increases.Especially supplied in a plurality of cable
In electric system, such as occur bypassing the immediate leadership trip protection when, it may be difficult to judge specific failure cable, sometimes even all cables are complete
Portion remove do after pressure test could correct failure judgement cable, its workload is big, performance difficulty, is unthinkable, to this
It is necessary to design a kind of new detection device, each current supply circuit is monitored in real time, when line failure, can carries
Show or directly display failure cable, to improving operating efficiency, restore electricity has highly important meaning rapidly.
Panel type fault detector is mounted on power cable distribution line, case change, ring main unit, in feeder pillar, is used for
The device of fault current circulation is indicated, once short trouble occurs for circuit, track walker can be by the red alarm on indicator
It has been shown that, determines rapidly fault section, branch and trouble point, thorough to change blindness line walking in the past, and segmentation combined floodgate trial line charging searches event
The backwardness way of barrier, operating efficiency is greatly improved, shorten power off time, effectively improve power supply reliability and economic benefit.
Current panel type fault detector major function has：
1st, short circuit current police instruction：Short circuit current sensor carries out online to the high-tension cable being currently running at work
Detection, when line current meets or exceeds the setting valve of short circuit current, short-circuit sensor sends alarm signal and passed by optical fiber
It is defeated to arrive main frame, after main frame receives this signal, produce corresponding alarm indication signal；
2nd, grounding alarm indicates：The system works as ground path using the earth current of grounding sensor detection service cable
Middle electric current meets or exceeds when earth current starts alarming value and (can required to be adjusted before dispatching from the factory according to user), ground connection sensing
The alarm signal that device sends passes to main frame, after main frame receives this signal, produces corresponding alarm indication signal；
3rd, panel main frame indicates：Alarm lamp, SR are provided with panel main frame and button of testing oneself, panel main frame
Receive short circuit or grounding sensor is transmitted through next signal, LED sends red flare alarm；
(1) automatic reset system：After indicator sends alarm signal, if prosthetic is resetted in 24 hours,
Indicator can be resetted automatically.
(2) manual reset：, can be by being carried out by the SR on lower panel host panel after indicator produces alarm
Alarm is released, carries out manual reset.
(3) test：The system can carry out self-test work by the removing button on panel, to detect the function of the machine, even
The continuous removing button press on lower panel 2 seconds, the machine enter self-test state, and the green indicating lamp on all panels is glittering, exports
Relay adhesive, illustrate that working condition is normal.
For the panel type fault detector with above-mentioned monitoring function, the appearance one that it in use can be apparent
A little the problem of being inconvenient to use：Because fault detector belongs to panel type, need staff intuitively to indicating fault
The panel of device is observed, and is obtained by the light of short circuit current alarm lamp and grounding alarm indicator lamp change on panel
Fault message, but panel is directly exposed to staff and can also increase the impaired probability of panel in front, so Structure of need
Go to protect the panel of indicator, while observation of the staff to alarm lamp can't be influenceed and to button
Operation；And when panel carries out self-test, if the indicator lamp on panel does not have all light green light, prove indicating fault
Device there is a problem itself, now needs to be repaired the taking-up very easy from protection structure of panel main frame, can just protect
Card fault detector preferably carries out the malfunction monitoring of cable.
The content of the invention
It is an object of the invention to provide a kind of high voltage cable malfunction monitoring panel type fault detector structure, to solve
The problem of being proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of high voltage cable malfunction monitoring panel type fault detector structure, including casing, protecting frame, short circuit sensing
Device, grounding sensor, panel main frame, instruction pipe and button pipe, are fixed with installing frame in the casing, are set on the installing frame
It is equipped with short-circuit sensor and grounding sensor；
The protecting frame is fixed in cabinets cavity, and panel main frame, the panel master are provided with the protecting frame inner chamber
Machine is arranged on bottom plate, and the bottom plate is fixed with top plate close to panel main frame side by support bar, the top plate with outside casing
Side wall is flexibly connected, and the bottom plate is connected with electric pushrod away from panel main frame side, and the electric pushrod is fixed on casing bottom
Wall, the electric pushrod side are provided with single-chip microcomputer, and the single-chip microcomputer is electrically connected with electric pushrod；
Instruction pipe and button pipe are plugged between wall box and the protecting frame side wall, face is provided with the instruction pipe
Colour sensor, the color sensor are electrically connected on single-chip microcomputer, opened up inside the button pipe it is fluted, in the groove
Screens block is movably set with, the screens block both sides are respectively and fixedly provided with limit spring, and the limit spring is fixed with groove madial wall
Connect, button post is fixedly plugged with the screens block.
Preferably, the panel main frame is connected with stripper plate away from instruction pipe one end, and the stripper plate passes through extruding
Spring is connected on protecting frame madial wall.
Preferably, the installing frame is provided with four, and three short-circuit sensors and one are separately installed with installing frame
Individual grounding sensor, the instruction pipe are provided with four, and the button pipe is provided with two.
Preferably, the instruction pipe is provided with transparent prevention plate away from panel main frame one end.
Preferably, string holes is offered on the wall box, connector is offered in the protecting frame side wall.
Compared with prior art, the beneficial effects of the invention are as follows：
The cabinets cavity of the present invention is used for installing three short-circuit sensors, a grounding sensor and protecting frame, three
Short-circuit sensor is respectively arranged on the three-phase of cable, and a grounding sensor is used for monitoring grounding electric current, by casing to passing
Sensor is directly protected, and the panel main frame set in protecting frame is electrically connected with each sensor, and instruction pipe is used for gathering
The light of alarm lamp on panel main frame, is on the one hand easy to staff to be observed the light of each alarm lamp,
On the other hand being also convenient for color sensor is collected sensing to light color, avoids the light between adjacent indicator lamp from disturbing,
Button pipe is used for operating SR and button of testing oneself.
In the present invention color sensor only to green produce sensing, when press test oneself button when, if all indicator lamps
In green, then single-chip microcomputer will not control electric pushrod to move, if indicator lamp is without all presentation greens, single-chip microcomputer control electricity
Dynamic pushrod movement, electric pushrod promote bottom plate to move upwards, and the panel main frame on bottom plate is carried out coming out of casing, are easy to pair
Panel main frame is repaired.
The panel type fault detector structure of the present invention, realized by casing and protecting frame to sensor and panel main frame
Protection, and by indicating the setting of pipe and button pipe so that can also be very easily right after plate main frame is protected over there
Warning indicator light and button on panel main frame carry out remote operation and observation；And color sensor and single-chip microcomputer are matched somebody with somebody
Close so that panel main frame test oneself go wrong when, electric pushrod can voluntarily drive panel main frame to be moved in the casing of protection
It is dynamic to come out, it is convenient for repairing, highly promotes.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the panel main frame mounting structure schematic diagram of the present invention；
Fig. 3 is the button tubular construction schematic diagram of the present invention.
In figure：1 casing, 101 string holes, 2 installing frames, 21 short-circuit sensors, 22 grounding sensors, 3 protecting frames, 31 connections
Mouth, 4 panel main frames, 5 bottom plates, 6 support bars, 7 electric pushrods, 8 top plates, 9 single-chip microcomputers, 10 instruction pipes, 11 color sensors, 12 are pressed
Key pipe, 13 grooves, 14 screens blocks, 15 limit springs, 16 button posts, 17 stripper plates, 18 extrusion springs.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme：
A kind of high voltage cable malfunction monitoring panel type fault detector structure, including casing 1, protecting frame 3, short circuit sensing
Device 21, grounding sensor 22, panel main frame 4, instruction pipe 10 and button pipe 12, electric elements provide electricity by external power source
Can, installing frame 2 is fixed with casing 1, short-circuit sensor 21 and grounding sensor 22 are provided with installing frame 2, installing frame 2 is set
There are four, and three short-circuit sensors 21 and a grounding sensor 22 are separately installed with installing frame 2, three short circuit sensings
Device 21 respectively for being installed in the triple line of high voltage cable, use and be installed on the ground path of cable by grounding sensor 22.
Protecting frame 3 is fixed in the inner chamber of casing 1, and panel main frame 4 is provided with the inner chamber of protecting frame 3, and panel main frame 4 is arranged at
On bottom plate 5, side wall and the movable contact of panel main frame 4 of bottom plate 5 so that bottom plate 5 can move up and down, and bottom plate 5 is close to panel master
The side of machine 4 is fixed with top plate 8 by support bar 6, is supported between top plate 8 and bottom plate 5 by support bar 6, supports the sky of formation
Between be used for plate placement main frame 4, top plate 8 is flexibly connected with the lateral wall of casing 1, top plate 8 retraction when just with the lateral wall of casing 1
Keep level, top plate 8 are the effect for realizing capping, and bottom plate 5 is connected with electric pushrod 7 away from the side of panel main frame 4, electronic to push away
Bar 7 selects DT25 type electric pushrods, and electric pushrod 7 is fixed on the bottom wall of casing 1, and electric pushrod 7 can promote bottom plate 5 to transport upwards
Dynamic, the side of electric pushrod 7 is provided with single-chip microcomputer 9, and single-chip microcomputer 9 is electrically connected with electric pushrod 7, and single-chip microcomputer 9 receives outside telecommunications
Number, then control electric pushrod 7 to move by ULN2003 types Darlington, it is very convenient.
String holes 101 is offered in the side wall of casing 1, short-circuit sensor 21 is carried out to the high-tension cable being currently running at work
On-line checking, short-circuit sensor 21 and grounding sensor 22 are passed through from string holes 101 by optical fiber and are connected on high voltage cable,
When high voltage line current meets or exceeds the setting valve of short circuit current, short-circuit sensor 21 sends alarm signal and passed by optical fiber
It is defeated on panel main frame 4, after panel main frame 4 receives this signal, produce the light signal of corresponding alarm lamp, alarm lamp
Shiny red, then the short-circuit sensor 21 is abnormal, is easy to fix a breakdown；Grounding sensor 22 detects the ground connection electricity of service cable
Stream, when electric current meets or exceeds earth current startup alarming value in ground path, alarming value can require dispatch from the factory according to user
Before adjusted, the alarm signal that grounding sensor 22 sends passes to panel main frame 4, after panel main frame 4 receives this signal, produce
The light signal of corresponding police instruction etc., alarm lamp shiny red, then the grounding sensor 22 is also abnormal, is easy to exclude event
Barrier.
Offer connector 31 in the side wall of protecting frame 3, panel main frame 4 is worn by the connection of optical fiber, optical fiber from connector 31
Cross and be connected on short-circuit sensor 21 and grounding sensor 22.
Short-circuit sensor 21 is corresponded on panel main frame 4 and is provided with three alarm lamps, corresponding grounding sensor 22 is set
There is an alarm lamp, be additionally provided with SR and button of testing oneself, be plugged between the side wall of casing 1 and the side wall of protecting frame 3
The length of instruction pipe 10 and button pipe 12, indicator lamp 10 and button pipe 12 is arranged on 10cm or so, and work people for convenience
Member's observation and the protection to inner panel main frame 4, instruction pipe 10 are provided with four, and four instruction pipes 10 correspond to four reports respectively
Alert indicator lamp, each to indicate that pipe 10 is used for carrying out an alarm lamp light collection, staff is another from instruction pipe 10
Light color in one end observation instruction pipe 10, button pipe 12 are provided with two, and two button pipes 12 correspond to SR respectively
With button of testing oneself.
Color sensor 11 is provided with instruction pipe 10, color sensor 11 selects TCS3200 type colour recognition modules, face
Colour sensor 11 is adjusted to only to produce sensing to green, and when alarm lamp presentation is red, staff passes through instruction
Pipe 10 is directly observed which short-circuit sensor 21 or grounding sensor 22 there is a problem, color sensor 11 electrically connects
It is connected on single-chip microcomputer 9, color sensor 11 is by the electric signal transmission detected to single-chip microcomputer 9.
Fluted 13 are opened up inside button pipe 12, screens block 14 is movably set with groove 13, screens block 14 can be recessed
Moved in groove 13, the both sides of screens block 14 are respectively and fixedly provided with limit spring 15, the setting of limit spring 15, screens block 14 are limited
Position, limit spring 15 are fixedly connected with the madial wall of groove 13, button post 16 are fixedly plugged with screens block 14, passes through button post
16, be combined with the reset response of limit spring 15 so that button post 16 can to SR corresponding to the one end of button pipe 12 or
Person's button of testing oneself is pressed.
As one preferably, panel main frame 4 is connected with stripper plate 17 away from instruction pipe 10 one end, and stripper plate 17 passes through
Extrusion spring 18 is connected on the madial wall of protecting frame 3, can be with counter plate main frame by the cooperation of stripper plate 17 and extrusion spring 18
4 carry out extruding fastening so that alarm lamp and button on panel main frame 4 are respectively aligned to indicate pipe 10 and button pipe 12.
As one preferably, instruction pipe 10 is provided with transparent prevention plate 19, transparent prevention plate 19 away from the one end of panel main frame 4
It is made from clear glass, does not on the one hand influence the observation to light color, on the other hand instruction pipe 10 is protected, prevented
Foreign matter enters in instruction pipe 10 and alarm lamp is caused to damage.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of high voltage cable malfunction monitoring panel type fault detector structure, including casing (1), protecting frame (3), short circuit biography
Sensor (21), grounding sensor (22), panel main frame (4), instruction pipe (10) and button pipe (12), it is characterised in that：It is described
Installing frame (2) is fixed with casing (1), short-circuit sensor (21) and grounding sensor (22) are provided with the installing frame (2)；
The protecting frame (3) is fixed in casing (1) inner chamber, and panel main frame (4), institute are provided with protecting frame (3) inner chamber
State panel main frame (4) to be arranged on bottom plate (5), the bottom plate (5) is fixed by support bar (6) close to panel main frame (4) side
There is top plate (8), the top plate (8) is flexibly connected with casing (1) lateral wall, and the bottom plate (5) connects away from panel main frame (4) side
Electric pushrod (7) is connected to, the electric pushrod (7) is fixed on casing (1) bottom wall, and electric pushrod (7) side is provided with list
Piece machine (9), the single-chip microcomputer (9) are electrically connected with electric pushrod (7)；
Instruction pipe (10) and button pipe (12), the instruction pipe are plugged between casing (1) side wall and protecting frame (3) side wall
(10) color sensor (11) is provided with, the color sensor (11) is electrically connected on single-chip microcomputer (9), the button pipe
(12) it is internal to open up fluted (13), it is movably set with screens block (14), screens block (14) both sides in the groove (13)
Limit spring (15) is respectively and fixedly provided with, the limit spring (15) is fixedly connected with groove (13) madial wall, the screens block (14)
In be fixedly plugged with button post (16).
2. a kind of high voltage cable malfunction monitoring panel type fault detector structure according to claim 1, its feature exist
In：The panel main frame (4) is connected with stripper plate (17) away from instruction pipe (10) one end, and the stripper plate (17) is by squeezing
Pressing spring (18) is connected on protecting frame (3) madial wall.
3. a kind of high voltage cable malfunction monitoring panel type fault detector structure according to claim 1, its feature exist
In：The installing frame (2) is provided with four, and three short-circuit sensors (21) and one are separately installed with installing frame (2)
Grounding sensor (22), the instruction pipe (10) are provided with four, and the button pipe (12) is provided with two.
4. a kind of high voltage cable malfunction monitoring panel type fault detector structure according to claim 1, its feature exist
In：The instruction pipe (10) is provided with transparent prevention plate (19) away from panel main frame (4) one end.
5. a kind of high voltage cable malfunction monitoring panel type fault detector structure according to claim 1, its feature exist
In：String holes (101) is offered in casing (1) side wall, connector (31) is offered in protecting frame (3) side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811046.5A CN107390093A (en) | 2017-09-11 | 2017-09-11 | A kind of high voltage cable malfunction monitoring panel type fault detector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811046.5A CN107390093A (en) | 2017-09-11 | 2017-09-11 | A kind of high voltage cable malfunction monitoring panel type fault detector structure |
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| CN107390093A true CN107390093A (en) | 2017-11-24 |
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| CN201710811046.5A Pending CN107390093A (en) | 2017-09-11 | 2017-09-11 | A kind of high voltage cable malfunction monitoring panel type fault detector structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983031A (en) * | 2018-09-05 | 2018-12-11 | 安徽康能电气有限公司 | A kind of electrical cable intelligent type fault detector based on RF wireless communication |
| CN109001621A (en) * | 2018-08-01 | 2018-12-14 | 安徽康能电气有限公司 | A kind of fuse state on-Line Monitor Device based on RF wireless communication |
| CN109936085A (en) * | 2019-04-19 | 2019-06-25 | 陈二东 | A kind of smart grid actual time safety prior-warning device |
| CN112240788A (en) * | 2020-10-14 | 2021-01-19 | 南京华帅科技有限公司 | Current on-line monitoring device with local display based on Internet of things |
| CN113985316A (en) * | 2021-10-28 | 2022-01-28 | 福建省邮电工程有限公司 | Cable fault positioning and maintaining device and method for machine room server |
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| CN207133380U (en) * | 2017-09-11 | 2018-03-23 | 安徽华明电气设备有限公司 | A kind of high voltage cable malfunction monitoring panel type fault detector structure |
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| CN201732134U (en) * | 2010-06-12 | 2011-02-02 | 薛兆春 | Panel-type short-circuit and earth fault indicator with pre-alarm function |
| US20150309103A1 (en) * | 2014-04-25 | 2015-10-29 | Leviton Manufacturing Company | Ground Fault Detector With Self-Test |
| CN207133380U (en) * | 2017-09-11 | 2018-03-23 | 安徽华明电气设备有限公司 | A kind of high voltage cable malfunction monitoring panel type fault detector structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001621A (en) * | 2018-08-01 | 2018-12-14 | 安徽康能电气有限公司 | A kind of fuse state on-Line Monitor Device based on RF wireless communication |
| CN108983031A (en) * | 2018-09-05 | 2018-12-11 | 安徽康能电气有限公司 | A kind of electrical cable intelligent type fault detector based on RF wireless communication |
| CN109936085A (en) * | 2019-04-19 | 2019-06-25 | 陈二东 | A kind of smart grid actual time safety prior-warning device |
| CN112240788A (en) * | 2020-10-14 | 2021-01-19 | 南京华帅科技有限公司 | Current on-line monitoring device with local display based on Internet of things |
| CN112240788B (en) * | 2020-10-14 | 2021-12-28 | 南京华帅科技有限公司 | Current on-line monitoring device with local display based on Internet of things |
| CN113985316A (en) * | 2021-10-28 | 2022-01-28 | 福建省邮电工程有限公司 | Cable fault positioning and maintaining device and method for machine room server |
| CN113985316B (en) * | 2021-10-28 | 2024-05-14 | 福建省邮电工程有限公司 | Cable fault positioning and maintaining device and method for machine room server |
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