CN107464398B - Line fault positions alarming device - Google Patents
Line fault positions alarming device Download PDFInfo
- Publication number
- CN107464398B CN107464398B CN201710668484.0A CN201710668484A CN107464398B CN 107464398 B CN107464398 B CN 107464398B CN 201710668484 A CN201710668484 A CN 201710668484A CN 107464398 B CN107464398 B CN 107464398B
- Authority
- CN
- China
- Prior art keywords
- alarming device
- hoodle
- emitter
- blind hole
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- 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
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/02—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using only mechanical transmission
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Locating Faults (AREA)
Abstract
The present invention proposes a kind of line fault positioning alarming device, it includes shell, control circuit unit and fault indication unit；The fault indication unit includes malfunction indicator lamp, mechanical alarming device and short message alarm module, and the machinery alarming device includes emitter.There is hoodle hole in the side circumferential direction spaced set of the lower semi-body of emitter, hoodle is provided in hoodle hole.The present invention is when failure occurs, the emitter of mechanical alarming device is popped up out of shell, and the hoodle of emitter lower semi-body is released, and, hoodle can fall on down two meters of shrinking away from theshell body or so of position, emitter, hoodle and warning rope three form a string of very strong warning marks, are very easy to find in the lesser weather of visibility.
Description
Technical field
The present invention relates to line faults to position alarming device.
Background technique
China's electric utility obtains tremendous development in recent years, and many, power circuit and power grid are also grown in national economic development
Also more and more intensive therewith, because of its natural environment and climate inclement condition, in addition the natural calamities such as outer broken, equipment fault and thunder and lightning are held very much
Easily cause line failure rate higher.Line fault warning (instruction) device is a kind of accident indicator installed on the line, mesh
Preceding line fault warning (instruction) device is all made of flop mechanism and carrys out indicating fault status, after failure occurs, flop mechanism rotation
Turn, red direction board is located at the transparent Board position of acrylic, make staff be observed that whether failure.
But there are the following problems for flop mechanism:
1, when the weather cloudy day or there is a mist, when air low visibility, be difficult to observe that line fault warns (instruction) device bottom
Red direction board；Moreover, present haze weather is increasingly severe, the lower weather of visibility is more and more, gives route event
The lookup of barrier brings difficulty.
2, it is influenced by line fault warning (instruction) device size, red direction board is smaller, therefore, even if in bright day
Gas, the staff having defective vision also are difficult to observe red direction board on ground, it is therefore desirable to lamp stand inspection.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of the present invention is to provide a kind of warning effect is bright
It is aobvious, even if can also be observed that the line fault of fault message positions alarming device in the lower weather of visibility.
To solve the above-mentioned problems, the invention adopts the following technical scheme:
A kind of line fault positioning alarming device, it includes
Shell, end is provided with current transformer and fixed line card on the housing；
The enclosure interior is provided with the control circuit unit with detection arbitration functions；
The lower part of the shell is provided with fault indication unit, the fault indication unit includes malfunction indicator lamp and short
Believe alarm module；The short message alarm module and malfunction indicator lamp are connect with the control circuit unit respectively, short message alarm mould
Block is used to send failure short message to designated terminal in failure；
It is characterized in that, the fault indication unit further includes mechanical alarming device, the machinery alarming device includes hair
Beam is provided with the blind hole upwardly extended from the housing bottom in the shell, and the emitter is located in the blind hole,
The open end of the blind hole is provided with lid；The upper end of the blind hole is provided with the transmitting bullet for emitting the emitter
Spring I, the emitter are connected to the upper end of blind hole by connecting rope；Limited position mechanism is set on the inside of the blind hole, described
The side of emitter is provided with groove corresponding with the position-limit mechanism；The position-limit mechanism includes limited bolt, spring and electromagnetism
Iron, the front end of the limited bolt are circle, and iron plate is arranged in the end of limited bolt, and the iron plate is opposite with the electromagnet；It is described
Electromagnet is connect with the control circuit unit；The spring is nested on the limited bolt, and the spring is for making the limit
The front end of position bolt is protruded into the groove；
The emitter includes lower semi-body and upper semi-body, is connected between the lower semi-body and upper semi-body by connecting rod；Institute
The side circumferential direction spaced set for stating lower semi-body has hoodle hole, and hoodle is provided in the hoodle hole, and hoodle passes through warning rope
It is connect with hoodle hole bottom, is fixed with transmitting spring II in the hoodle hole bottom；
The front end of the hoodle hole is provided with baffle plate groove, baffle, all baffles are provided in the baffle plate groove
Upper end extend to the axial location of the lower semi-body upper end after link together；Gravitation ball is provided among the lower semi-body
Slot, is provided with gravitation ball in the gravity ball groove, and the lower end of the connecting rope passes through the upper semi-body and all baffles
Junction after connect with the gravitation ball.
Further, the lid is elastoplastic lid, and the lid is covered in the open end of the blind hole.
Further, the lid is by being threadedly engaged the open end for being fixed on the blind hole, the top of the lid
For masking foil.
Further, the SIM card socket of fault warning module is provided in the hull outside, in the SIM card socket
On be provided with sealing cover.
Further, the reset button of protrusion, the reset button and the control are provided on the inside of the blind hole
Circuit unit connection, for restoring the fault indicating condition of fault indication unit.
Further, when failure occurs, the malfunction indicator lamp, mechanical alarming device and short message alarm module while work
Make.
Further, the warning rope and/or connecting rope are the red zones that width is 0.5cm-1.5cm.
The beneficial effects of the present invention are: when failure occurs, the emitter of mechanical alarming device is popped up out of shell, and will
The hoodle of emitter lower semi-body releases, moreover, hoodle can fall on down two meters of shrinking away from theshell body or so of position, emitter, bullet
Pearl and warning rope three form a string of very strong warning marks, are very easy to find in the lesser weather of visibility.
After the failure occurred, the present apparatus can be easily re-assembled to together, may be reused.
Detailed description of the invention
The present invention is described further with reference to the accompanying drawings and examples:
Fig. 1 is principle schematic diagram (original state) of the invention；
Fig. 2 is principle schematic diagram of the invention (state after emitter pop-up)；
Fig. 3 is projectile configuration schematic diagram of the invention；
Fig. 4 is emitter positive structure diagram of the invention；
Fig. 5 is the structural schematic diagram to link together after four baffle upper ends of the invention extend；
Fig. 6 is the enlarged drawing of part A in Fig. 1.
In figure, shell 1, current transformer 11, fixed line card 12, cavity 13, blind hole 14, lid 15, SIM card socket 16,
Sealing cover 17, malfunction indicator lamp 2, short message alarm module 3, emitter 4, transmitting spring I 41, connecting rope 42, groove 43, lower semi-body
44, hoodle hole 441, baffle plate groove 442, gravity ball groove 443, upper semi-body 45, connecting rod 46, hoodle 47, warning rope 48, transmitting spring II
49, position-limit mechanism 5, limited bolt 51, spring stop 511, sphere 512, spring 52, electromagnet 53, iron plate 54, fixed plate 55, gear
Plate 6, gravitation ball 7.
Specific embodiment
Specific embodiments of the present invention are described in detail below with reference to Fig. 1-Fig. 6:
The present invention includes shell 1, and 1 upper end of shell is provided with current transformer 11 and fixed line card 12.Described
Shell 1 is internally provided with the control circuit unit (detection judgement system) with fault detection arbitration functions, control circuit unit,
The components such as battery are located in the cavity 13 of 1 upper end of shell.The lower part of the shell 1 is provided with fault indication unit.It is above-mentioned
Control circuit unit, current transformer 11 and fixed line card 12 it is identical as in existing product, therefore repeat no more herein.
Improvements over the prior art point of the present invention is fault indication unit, devises mechanical alarming device in fault indication unit.
The fault indication unit includes malfunction indicator lamp 2, mechanical alarming device and short message alarm module 3, the failure
The bottom outside of the lower semi-body 44 is arranged in indicator light 2, and malfunction indicator lamp 2 is connect with control circuit unit, occurs in failure
Bright by control circuit unit control malfunction indicator lamp 2 afterwards, malfunction indicator lamp 2 can also be controlled by control circuit unit only at night
It is bright when failure.Malfunction indicator lamp 2 also belongs to the prior art, is also equipped with failure on existing line fault warning (instruction) device
Indicator light.
In order to improve warning effect, the present invention devises following mechanical alarming device:
The machinery alarming device includes emitter 4, is provided in the shell 1 from 1 bottom of shell and is prolonged upwards
The blind hole 14 stretched, the emitter 4 are located in the blind hole 14, and the open end of the blind hole 14 is provided with lid 15.Institute
The upper end for stating blind hole 14 is provided with transmitting spring I 41 for emitting the emitter 4, and the upper end of transmitting spring I 41 is fixed on
The top of blind hole 14, the emitter 4 by connecting rope 42 is connected to the upper end of blind hole 14, and (i.e. one end of connecting rope is connected to blind
Hole top, the other end are connected on emitter 4.There is a chamber on the inside of the blind hole 14, position restrainer is provided in chamber
Structure 5 is provided with groove 43 corresponding with the position-limit mechanism 5 in the side of the emitter 4, in order to guarantee into blind hole 14
Position-limit mechanism 5 is corresponding with groove 43 when placing emitter 4, guide rail can be arranged in the outer surface of emitter 4, in blind hole 14
Guide-track groove is set on side wall, it is more convenient when placing emitter 14 in this way.If being not provided with guide rail and guide-track groove, it is put into hair
It needs slowly to rotate emitter 14 after beam 14, when feeling or hear that click, the limited bolt of position-limit mechanism 5 be caught in groove 43
?.
As shown in fig. 6, the position-limit mechanism 5 includes limited bolt 51, spring 52 and electromagnet 53, the electromagnet 53 and institute
Stating control circuit unit, (i.e. a pull-up resistor and a driving triode, CPU drive the drive of performer by driving circuit
Dynamic circuit belongs to the prior art, therefore is no longer described in detail) it is drivingly connected.The front end of the limited bolt 51 is circle, such as institute in Fig. 6
Show, a sphere 512 is directly fixed in the front end of limited bolt 51, and iron plate 54, the iron plate 54 and institute is arranged in the end of limited bolt 51
It is opposite to state electromagnet 53.The spring 52 is nested on the limited bolt 51, and the spring 52 is for making the limited bolt 51
Front end is protruded into the groove 43.Fixed plate 55 is set in the cavity of 14 inside of blind hole, the centre of fixed plate 55 is provided with through-hole,
Limited bolt 51 passes through the through-hole in fixed plate 55, spring stop 511 is provided on limited bolt 51, spring 52 is located at spring stop
Between 511 and fixed plate 55.Iron plate 54 is located at the rear of fixed plate 55.
As shown in Figs 1-4, the emitter 4 includes lower semi-body 44 and upper semi-body 45, and lower semi-body 44 and upper semi-body 45 are
Taper preferably is arranged in 44 bottom of lower semi-body for the ease of opening lid 15 in cylinder.The lower semi-body 44 and upper semi-body 45
Between connected by connecting rod 46.There are multiple hoodle holes 441 (such as institute in figure in the side circumferential direction spaced set of the lower semi-body 44
Show and be provided with four hoodle holes 441), be provided with hoodle 47 in each hoodle hole 441, hoodle 47 by warning rope 48 with
The connection of 441 bottom of hoodle hole is fixed with transmitting spring II 49 in 441 bottom of hoodle hole.
In order to play good warning effect, it is 0.5cm-1.5cm that the warning rope 48 and/or connecting rope 42, which are made into width,
Red zone, can be strap or plastic tape.
The front end of the hoodle hole 441 is provided with baffle plate groove 442, baffle plate groove 442 extends to the upper of lower semi-body 44
End.Baffle 6 is provided in the baffle plate groove 442, the upper end of all baffles 6 (being illustrated in figure 5 four baffles 6) extends
It links together after to the axial location of 44 upper end of lower semi-body, is provided in the junction of four baffles 6 for connecting rope 42
The through-hole passed through.44 center vertical of lower semi-body is provided with gravity ball groove 443, is provided in the gravity ball groove 443
Gravitation ball 7, the lower end of the connecting rope 42 pass through after the through-hole on the top of the upper semi-body 45 and the baffle 6 with the gravity
Ball 7 connects.
The short message alarm module is connect with the control circuit unit, for sending failure to designated terminal in failure
Short message.It is provided with the SIM card socket 16 of fault warning module on the outside of the shell 1, is provided on the SIM card socket 16
Sealing cover 17.
For in the present invention, the design of lid 15 can use the following two kinds mode: first way, and the lid 15 is
Elastoplastic lid, 15 sets of the lid open ends in the blind hole 14.When emitter 4 emits, hd 15 can be pushed up.The
Two kinds of modes, the lid 15 are tin by being threadedly engaged the open end for being fixed on the blind hole 14, the top of the lid 15
Foil paper can puncture masking foil when emitter 4 emits.
The working principle of the invention is: being as shown in Figure 1 the normal condition of the present apparatus, monitors line in control circuit unit
After the failure of road, control circuit unit controls electromagnet 53 must be electric, and 53 adsorpting iron plate 54 of electromagnet pulls limited bolt 51 to be displaced outwardly,
The front end of limited bolt 51 is detached from groove 43, and compressed transmitting spring I 41 is released, emitter 4 is emitted, and emitter 4 pushes up
It breaks the masking foil of lid 15 or is dropped out out of blind hole 14 after pushing away lid 15.After emitter 4 tenses connecting rope 42, emitter 4
Continue to fall by inertia and gravity, at this moment, gravitation ball 7 can hit the junction of multiple 6 upper ends of baffle upwards suddenly, then will
Baffle 6 is lifted up, and is lifted to state as shown in Figure 2, and at this moment, hoodle hole 441 is opened, and hoodle 47 is launched spring II 49
It releases.Preferably, when failure occurs, the malfunction indicator lamp 2, mechanical alarming device and short message alarm module are worked at the same time,
Short message alarm module sends fault message and fault point short message to pre-set terminal.Certainly, malfunction indicator lamp 2 can be only
In night fail-open, if malfunction indicator lamp 2 is allowed only to open at night, one and control circuit are installed on shell 1
The photosensitive sensor of unit connection.The principle for judging fault message how is detected for control circuit unit and is used at present
Fault detector it is identical, repeat no more herein.
After trouble shooting, hoodle 47 and warning rope 48 are put into hoodle hole 441, baffle 6 is then pushed, makes 6 envelope of baffle
Firmly hoodle hole 441.Then emitter 4 and connecting rope 42 are put back into blind hole 14 again, the lid 15 more renewed.
The above combination attached drawing is described above in detail the preferred embodiment of the present invention and embodiment, but the present invention is not
The above-described embodiment and examples are confined to, for those skilled in the art, are not departing from structure of the present invention
Under the premise of think of, other several improvements and modifications can also be made, these improvements and modifications also should be regarded as protection model of the invention
It encloses.
Claims (7)
1. a kind of line fault positions alarming device, it includes
Shell, end is provided with current transformer and fixed line card on the housing；
The enclosure interior is provided with the control circuit unit with detection arbitration functions；
The lower part of the shell is provided with fault indication unit, the fault indication unit includes that malfunction indicator lamp and short message are accused
Alert module；The short message alarm module and malfunction indicator lamp are connect with the control circuit unit respectively, and short message alarm module is used
In in failure to designated terminal send failure short message；
It is characterized in that, the fault indication unit further includes mechanical alarming device, the machinery alarming device includes emitter,
The blind hole upwardly extended from the housing bottom is provided in the shell, the emitter is located in the blind hole, in institute
The open end for stating blind hole is provided with lid；The upper end of the blind hole is provided with the transmitting spring I for emitting the emitter,
The emitter is connected to the upper end of blind hole by connecting rope；Limited position mechanism is set on the inside of the blind hole, in the transmitting
The side of body is provided with groove corresponding with the position-limit mechanism；The position-limit mechanism includes limited bolt, spring and electromagnet, institute
The front end of limited bolt is stated as circle, iron plate is arranged in the end of limited bolt, and the iron plate is opposite with the electromagnet；The electromagnet
It is connect with the control circuit unit；The spring in the position-limit mechanism is nested on the limited bolt, the position restrainer
The spring in structure is for protruding into the front end of the limited bolt in the groove；
The emitter includes lower semi-body and upper semi-body, is connected between the lower semi-body and upper semi-body by connecting rod；Under described
The side circumferential direction spaced set of halfbody has hoodle hole, and hoodle is provided in the hoodle hole, and hoodle passes through warning rope and bullet
The connection of hole of bead bottom is fixed with transmitting spring II in the hoodle hole bottom；
The front end of the hoodle hole is provided with baffle plate groove, is provided with baffle in the baffle plate groove, all baffles it is upper
It links together after holding the axial location for extending to the lower semi-body upper end；Gravity ball groove is provided among the lower semi-body,
Gravitation ball is provided in the gravity ball groove, the lower end of the connecting rope passes through the company of the upper semi-body and all baffles
It is connect after meeting place with the gravitation ball.
2. line fault according to claim 1 positions alarming device, it is characterised in that: the lid is elastoplastic
Lid, the lid are covered in the open end of the blind hole.
3. line fault according to claim 1 positions alarming device, it is characterised in that: the lid is by being threadedly engaged
It is fixed on the open end of the blind hole, the top of the lid is masking foil.
4. line fault according to claim 1 positions alarming device, it is characterised in that: be provided in the hull outside
The SIM card socket of fault warning module is provided with sealing cover on the SIM card socket.
5. line fault according to claim 1 positions alarming device, it is characterised in that: be arranged in the inside of the blind hole
There is the reset button of protrusion, the reset button is connect with the control circuit unit, for restoring the event of fault indication unit
Hinder instruction state.
6. line fault according to claim 1 positions alarming device, it is characterised in that: when failure occurs, the event
Barrier indicator light, mechanical alarming device and short message alarm module work at the same time.
7. line fault according to claim 1 positions alarming device, it is characterised in that: the warning rope and/or connection
Rope is the red zone that width is 0.5cm-1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668484.0A CN107464398B (en) | 2017-08-08 | 2017-08-08 | Line fault positions alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710668484.0A CN107464398B (en) | 2017-08-08 | 2017-08-08 | Line fault positions alarming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107464398A CN107464398A (en) | 2017-12-12 |
| CN107464398B true CN107464398B (en) | 2019-05-03 |
Family
ID=60547368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710668484.0A Expired - Fee Related CN107464398B (en) | 2017-08-08 | 2017-08-08 | Line fault positions alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107464398B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646711B (en) * | 2019-10-17 | 2021-10-29 | 国网山东省电力公司平原县供电公司 | 10 kilovolt overhead line intelligent fault monitoring system and special mounting rod thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204424858U (en) * | 2015-02-28 | 2015-06-24 | 国家电网公司 | Hv cable termination connector temperature alarming device |
| CN204440580U (en) * | 2015-01-13 | 2015-07-01 | 广州久创电子科技有限公司 | Power transmission line warning lamp |
| CN205158542U (en) * | 2015-10-12 | 2016-04-13 | 广西电网有限责任公司南宁供电局 | Overhead line warning device |
| CN205506998U (en) * | 2016-02-15 | 2016-08-24 | 国网山东省电力公司巨野县供电公司 | Trouble warning device for distribution lines |
| KR20170006729A (en) * | 2015-07-09 | 2017-01-18 | 한상호 | Power cutoff device of power supply facility |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9286790B2 (en) * | 2014-05-23 | 2016-03-15 | Emergency Alert Solutions Group, Llc | Lockdown apparatus for initiation of lockdown procedures at a facility during an emergency |
-
2017
- 2017-08-08 CN CN201710668484.0A patent/CN107464398B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204440580U (en) * | 2015-01-13 | 2015-07-01 | 广州久创电子科技有限公司 | Power transmission line warning lamp |
| CN204424858U (en) * | 2015-02-28 | 2015-06-24 | 国家电网公司 | Hv cable termination connector temperature alarming device |
| KR20170006729A (en) * | 2015-07-09 | 2017-01-18 | 한상호 | Power cutoff device of power supply facility |
| CN205158542U (en) * | 2015-10-12 | 2016-04-13 | 广西电网有限责任公司南宁供电局 | Overhead line warning device |
| CN205506998U (en) * | 2016-02-15 | 2016-08-24 | 国网山东省电力公司巨野县供电公司 | Trouble warning device for distribution lines |
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| Publication number | Publication date |
|---|---|
| CN107464398A (en) | 2017-12-12 |
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Granted publication date: 20190503 Termination date: 20210808 |