CN106841756A - One kind illumination electrical verification alarm integral operational bar - Google Patents
One kind illumination electrical verification alarm integral operational bar Download PDFInfo
- Publication number
- CN106841756A CN106841756A CN201710219408.1A CN201710219408A CN106841756A CN 106841756 A CN106841756 A CN 106841756A CN 201710219408 A CN201710219408 A CN 201710219408A CN 106841756 A CN106841756 A CN 106841756A
- Authority
- CN
- China
- Prior art keywords
- electrical verification
- circuit
- head
- insulator
- insulating bar
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The present invention relates to high-tension electricity operating technology field, it is especially a kind of to illuminate electrical verification alarm integral operational bar, it is docked formed successively by insulating bar A, insulating bar B and holding rod, and insulating bar A, B are respectively provided with hollow structure, and insulating bar A is assembled successively by head rod and hollow insulator and foot piece；The top of head rod is equipped with electrical verification head, is installed on insulator the tail end extension type of head rod；Insulator is provided with annular insulation shirt rim and horn mouth;The head end of foot piece is built-in with power module and high voltage testing warning circuit, and alarm for high voltage circuit is made up of 42 input nand gate modules, electrical verification input circuit, sensing detection source circuit, oscillating circuit, sound light alarming circuit；Simple structure of the present invention, it is easy to carry and execute-in-place, the sub-switching operation to pole-mounted circuit breaker and the electrical verification operation to transmission line of electricity are realized simultaneously, effectively prevent transmission line of electricity and high-voltage one-phase ground connection and phase fault accident occur when electrical verification is operated, it is ensured that safe operation.
Description
Technical field
The present invention relates to high-tension electricity operating technology field, especially a kind of illumination electrical verification alarm integral operational bar.
Background technology
Currently, when power transmission failure occurs in ultra-high-tension power transmission line, line construction personnel need to divide pole-mounted circuit breaker
Lock is operated, and after carrying out electrical verification operation to the transmission line of electricity after separating brake, so could carry out overhaul plan to line related.
However, line construction personnel run into problems with when site operation is carried out：(1) it is current, pole-mounted circuit breaker is entered
Row sub-switching operation and transmission line of electricity is carried out electrical verification operation use different insulating bars, line construction personnel are being carried out
Trouble is carried during execute-in-place, is wasted time and energy, and use wrong insulating bar in extreme circumstances, can also be to line construction personnel
Bring the personal injury of electric shock；(2) in general, the overhead height of pole-mounted circuit breaker is higher, for example：Break on the post of 10kV
Road device setting height(from bottom) in 6~10m, when workmen carries out night time operation, it is difficult to exactly by the operation on insulating bar
Head is aligned with the divide-shut brake contact on breaker, and this has had a strong impact on operating efficiency；(3) line construction personnel are in rainy weather
Under when carrying out live electrical verification and operating, because air humidity is than larger, operating head and the insulation of live directly contact high voltage power supply are grasped
Making the body of rod of bar can occur creepage phenomenon, and line construction personnel further encounter problems with when electrical verification is operated：A. it is wet in air
The steam of profit easily condenses on the body of rod of insulating bar, and gradually accumulates current and flowed downward along the body of rod, when insulation is operated
When the body of rod of bar touches the support frame of ultra-high-tension power transmission line, it may occur that high-voltage one-phase is grounded hidden danger, and b. is when insulating bar
When the body of rod touches adjacent another phase ultra-high-tension power transmission line, it is most likely that the alternate short circuit phenomenon of high pressure, both of these case occur
Serious influence not only can be brought to the normal operation of high voltage power transmission, the person peace of line construction personnel can be also seriously threatened
Entirely.
The content of the invention
Present invention aim to solve when power transmission failure occurs in ultra-high-tension power transmission line, line construction personnel are to post
Upper breaker carries out sub-switching operation and the above mentioned problem that electrical verification operation is run into is carried out to transmission line of electricity, for this provides a kind of illumination
Electrical verification alarm integral operational bar.
Concrete scheme of the invention is：One kind illumination electrical verification alarm integral operational bar, by insulating bar A, insulating bar B and hand
Hold bar and dock successively and form, it is characterized in that：Insulating bar A, B are respectively provided with hollow structure, and insulating bar A is by head rod and hollow insulator
And foot piece assembles successively；The top of the head rod is equipped with electrical verification head, and electrical verification head is in upper and lower opposed by two directions
Operation hook composition, be installed on insulator the tail end extension type of head rod；If the insulator is provided with upside dried layer ring
The horn mouth that shape insulation shirt rim and open lower side are arranged down;The head end of the foot piece is built-in with the electricity for providing working power
Source module and high voltage testing warning circuit, alarm for high voltage circuit is coupled by 42 input nand gate modules and respectively to be tested
Electric input circuit, sensing detection source circuit, oscillating circuit, sound light alarming circuit composition, wherein power module is pressed equipped with power supply
Button, electrical verification input circuit equipped with test button, sound light alarming circuit equipped with buzzer and light emitting diode, test button,
Buzzer and light emitting diode are mounted on the side wall of foot piece；Electrical verification input circuit is used to be touched to sensing detection source circuit input
Signal；The electrical verification head connection sensing detection source circuit, after sensing detection source circuit receives trigger signal, starts high pressure
Detection, and detection signal is transmitted to 42 input nand gate modules；Oscillating circuit receives letter in 42 input nand gate modules
After number, be triggered starting of oscillation, and 42 input nand gate modules export square-wave signal with this, and control sound light alarming circuit is intermittently sent out
Go out sound and light alarm instruction.
The top of heretofore described head rod is set with locking cap, and locking cap is integral type structure with electrical verification head, in fixation
Equipped with the LED that several are circumferentially arranged on cap；The termination that the operation is hooked is ballhead.
The tail end of heretofore described head rod is provided with threaded rod, and insulator is offered along its axle center and matched with threaded rod
Screwed hole；The length of the head rod is 50~70cm.
Heretofore described power module selects rechargeable battery, equipped with charging plug on the side wall of foot piece, exhausted
The charging socket matched with charging plug is offered on edge；The lower end of the insulator, to be threadedly coupled, passes through with foot piece
Rotating insulated son, control charging socket docks or misplaces arrangement with charging plug, to realize to unlatching/charge closing socket.
The present invention has advantages below：
(1) present invention is easy to carry and execute-in-place, and realize simultaneously pole-mounted circuit breaker is divided using three-stage design
Lock is operated and carries out electrical verification operation to transmission line of electricity, improves the operating efficiency of line construction personnel, it is ensured that safe operation；
(2) by the top mounted LED lamp in head rod, greatly facilitate line construction personnel is carried out the present invention to pole-mounted circuit breaker
Night sub-switching operation；
(3) present invention is installed with the annular insulation bell-mouthed insulator in shirt rim by insulating bar A, realizes insulating bar A
Upper head rod is isolated with foot piece, when being operated than carrying out electrical verification in the case of larger in air humidity, not only effectively prevent head
Influence of the piezoelectric voltage to each low-voltage circuit module normal work in foot piece is climbed on bar, that is, realizes the isolation of high-low pressure, really
Protected the normal work of action bars, and effectively prevent transmission line of electricity carry out electrical verification operate when occur high-voltage one-phase ground connection or
The phenomenon of phase fault, it is achieved thereby that carry out safe electrical verification in the case where not influenceing transmission line of electricity normally to run operating.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is the structural representation of insulating bar A, insulating bar B and holding rod in the present invention；
Fig. 3 is the structural representation of insulator in the present invention;
Fig. 4 is the structural representation of locking cap and electrical verification head in the present invention；
Fig. 5 is control structure block diagram of the invention；
Fig. 6 is electrical schematic diagram of the invention.
In figure：1-insulating bar A, 1a-head rod, 1b-insulator, 1c-foot piece, 2-insulating bar B, 3-holding rod, 4-
Electrical verification head, 4a-operation is hooked, 4b-ballhead, 5-locking cap, 6-LED, 7-annular insulation shirt rim, 8-horn mouth, 9-
Power module, 10-high voltage testing warning circuit, 11-four 2 input nand gate modules, 12-electrical verification input circuit, 13-sensing
Detection source circuit, 14-oscillating circuit, 15-sound light alarming circuit, 16-test button, 17-buzzer, 18-light-emitting diodes
Pipe, 19-threaded rod, 20-charging plug, 21-charging socket, 22-power knob.
Specific embodiment
Referring to Fig. 1-5, one kind illumination electrical verification alarm integral operational bar, by insulating bar A1, insulating bar B2 and holding rod 3 according to
Secondary docking is formed, and insulating bar A1 and insulating bar B2 is respectively provided with hollow structure, and insulating bar A1 is by head rod 1a and hollow insulator 1b
And foot piece 1c assembles successively；The top of the head rod 1a is equipped with electrical verification first 4, and electrical verification first 4 is by two directions in phase up and down
The operation of anti-arrangement hooks 4a compositions, is installed on insulator 1b the tail end extension type of head rod 1a；Set on the insulator 1b
If there is the horn mouth 8 that upside dried layer annular insulation shirt rim 7 and open lower side are arranged down;The head end of the foot piece 1c is built-in with use
In the power module 9 and high voltage testing warning circuit 10 that provide working power, alarm for high voltage circuit 10 is by 42 input nand gate moulds
Block 11 and electrical verification input circuit 12 coupled respectively, sensing detection source circuit 13, oscillating circuit 14, sound light alarming circuit
15 compositions, wherein power module 9 are equipped with power knob 22, electrical verification input circuit 12 equipped with test button 16, sound and light alarm
Circuit 15 is mounted on equipped with buzzer 17 and light emitting diode 18, test button 16, buzzer 17 and light emitting diode 18
On the side wall of foot piece 1c；Electrical verification input circuit 12 is used for the sensing detection input trigger signal of source circuit 13；The electrical verification first 4 connects
Sensing detection source circuit 13 is connect, after sensing detection source circuit 13 receives trigger signal, starts high pressure detection, and detection is believed
Number transmit to 42 input nand gate modules 11；Oscillating circuit 14 is touched after 42 input nand gate modules 11 receive signal
Initiation is shaken, and 42 input nand gate modules 11 export square-wave signal with this, and control sound light alarming circuit 15 intermittently sends acousto-optic
Police instruction.
Referring to Fig. 4, the top of head rod 1a described in the present embodiment is set with locking cap 5, and locking cap 5 is one with electrical verification first 4
Body formula structure, equipped with the LED 6 that several are circumferentially arranged on locking cap 5；The termination that the operation hooks 4a is ballhead
4b, to prevent point discharge.
The tail end of head rod 1a described in the present embodiment is provided with threaded rod 19, and insulator 1b is offered and threaded rod along its axle center
19 screwed holes for matching；The length of the head rod 1a is 50~70cm.
Power module 9 described in the present embodiment selects rechargeable battery, equipped with charging plug on the side wall of foot piece 1c
20, the charging socket 21 matched with charging plug 20 is offered on insulator 1b；The lower end of the insulator 1b and foot piece
To be threadedly coupled, by rotating insulated sub- 1b, control charging socket 21 docks or misplaces arrangement to 1c with charging plug 20, to realize
To unlatching/charge closing socket 21.
Electrical schematic diagram of the invention is as shown in fig. 6, in figure 6, power knob 22 is represented with SB1；Test button 16 is used
SB2 is represented；The double straight cutting modules of HD14011BP that 42 input nand gate module 11 is produced using Hitachi, Ltd；The He of buzzer 17
Light emitting diode 18 is represented with Y1 and LED1 successively.
Operation principle of the invention is as follows：
First, start button SB1, power module 9 is that high voltage testing warning circuit 10 provides working power, now by four parallel connections
The LED 6 that LED 2, LED3, LED4, LED5 is constituted is lighted, and LED 6 is easy to line construction personnel at night pair
Pole-mounted circuit breaker carries out sub-switching operation；
Then, insulating bar A1, insulating bar B2 and holding rod 3 are docked successively and is integrated, started to being divided pole-mounted circuit breaker
Lock is operated；
Then high voltage testing operation is carried out to transmission line of electricity, when being operated in the environment of air is more moistened around, it is necessary to
Voltage and overhead height according to transmission line of electricity adaptively adjust the length of head rod 1a.According in " electric power safety working regulation "
The erection standard of high-tension overhead line：Voltage 10kV and it is following when, alternate safe distance be 0.70m;Voltage in 20kV or
During 35kV, alternate safe distance is 1.00m;In 66kV or 110kV, alternate safe distance is 1.50m to voltage;Voltage exists
During 220kV, alternate safe distance is 3.00m;In 300kV, alternate safe distance is 4.00m to voltage;Voltage in 500kV,
Alternate safe distance be 5.00m, when 10kV and following high-tension overhead line are carried out electrical verification operate when, can be by head rod 1a
Length adjustment be 70cm, in case operation when transmission line of electricity occur high-voltage one-phase ground connection or phase fault phenomenon.
After treating the length adjustment of head rod 1a well, firing test button 16 proceeds by electrical verification operation.Now, circuit is applied
Workman person only needs hand-held holding rod 3, by the electrical verification on action bars top first 4 gradually thereto a phase high-tension line near until with
Contact.When electrical verification first 4 is powered, due to electrical verification input circuit 12 when test button 16 is closed to the colelctor electrode of triode Q1
A level signal is given, triode Q1 is turned on when base stage has level signal so that in 42 input nand gate modules 11 8. number
Be changed into low level with a 9. number pin NAND gate input so that 10. number pin output high level, and then number with number pin with
Not gate input is changed into high level, number pin output low level.Resistance R6, R7, R8 and electric capacity C2 and 42 input nand gate moulds
Two other NAND gate composition oscillating circuit 14 in block 11, oscillating circuit 14 is triggered starting of oscillation, in 42 input nand gate modules 11
3. number pin output square wave, so as to control triode Q2 and Q3 Discontinuous Conductions, and then drive buzzer 17 and light-emitting diodes
Whether pipe 18 sends sound and light alarm instruction, so realizes the detection powered to ultra-high-tension power transmission line.
Claims (4)
1. a kind of illumination electrical verification alarm integral operational bar, is docked formed successively by insulating bar A, insulating bar B and holding rod, and it is special
Levying is：Insulating bar A, B are respectively provided with hollow structure, and insulating bar A is assembled successively by head rod and hollow insulator and foot piece；
The top of the head rod is equipped with electrical verification head, and electrical verification head is hooked in the operation of upper and lower opposed by two directions and constituted, the tail of head rod
It is installed on insulator end extension type；If the insulator is provided with upside dried layer annular insulation shirt rim and open lower side court
The horn mouth of lower arrangement;The head end of the foot piece is built-in with power module and high voltage testing warning circuit, alarm for high voltage circuit by
42 input nand gate modules, electrical verification input circuit, sensing detection source circuit, oscillating circuit, sound light alarming circuit composition, wherein
Power module equipped with power knob, electrical verification input circuit equipped with test button, sound light alarming circuit equipped with buzzer and
Light emitting diode, test button, buzzer and light emitting diode are mounted on the side wall of foot piece；Electrical verification input circuit be used for
Sensing detection source circuit input trigger signal；The electrical verification head connection sensing detection source circuit, receives in sensing detection source circuit
To after trigger signal, start high pressure detection, and detection signal is transmitted to 42 input nand gate modules；Oscillating circuit is defeated 42
Enter after NAND gate module receives signal, be triggered starting of oscillation, and 42 input nand gate modules export square-wave signal, control sound with this
Optical alarm circuit intermittently sends sound and light alarm instruction.
2. one kind according to claim 1 illuminates electrical verification alarm integral operational bar, it is characterized in that：The top of the head rod
Locking cap is set with, locking cap is integral type structure with electrical verification head, equipped with the LED that several are circumferentially arranged on locking cap
Lamp；The termination that the operation is hooked is ballhead.
3. one kind according to claim 1 illuminates electrical verification alarm integral operational bar, it is characterized in that：The tail end of the head rod
Threaded rod is provided with, insulator offers the screwed hole matched with threaded rod along its axle center；The length of the head rod be 50~
70cm。
4. one kind according to claim 1 illuminates electrical verification alarm integral operational bar, it is characterized in that：The power module choosing
With rechargeable battery, equipped with charging plug on the side wall of foot piece, offer match with charging plug on the insulator
Charging socket；With foot piece to be threadedly coupled, by rotating insulated son, control charging socket is inserted with charging for the lower end of the insulator
Head docking or dislocation arrangement, to realize to unlatching/charge closing socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710219408.1A CN106841756A (en) | 2017-04-06 | 2017-04-06 | One kind illumination electrical verification alarm integral operational bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710219408.1A CN106841756A (en) | 2017-04-06 | 2017-04-06 | One kind illumination electrical verification alarm integral operational bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106841756A true CN106841756A (en) | 2017-06-13 |
Family
ID=59146663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710219408.1A Pending CN106841756A (en) | 2017-04-06 | 2017-04-06 | One kind illumination electrical verification alarm integral operational bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106841756A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196111A (en) * | 2017-08-18 | 2018-06-22 | 广东电网有限责任公司中山供电局 | A kind of circuit electroscopic device of non-contact type |
| CN109599788A (en) * | 2018-11-27 | 2019-04-09 | 国家电网有限公司 | A kind of insulating bar |
| CN109605487A (en) * | 2018-11-27 | 2019-04-12 | 国家电网有限公司 | A kind of remover of high pressure gas impurity removing |
| CN109901097A (en) * | 2019-04-17 | 2019-06-18 | 贵州电网有限责任公司 | A kind of Portable, personal ac high-voltage simulator |
| CN111029962A (en) * | 2019-12-10 | 2020-04-17 | 深圳供电局有限公司 | Test electric formula insulating bar |
| CN113917382A (en) * | 2021-09-28 | 2022-01-11 | 广东电网有限责任公司 | High-voltage generator and control method |
| CN114137284A (en) * | 2021-11-06 | 2022-03-04 | 深圳供电局有限公司 | Electric power overhaul tool |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282036Y (en) * | 2008-10-31 | 2009-07-29 | 刘进生 | Rain/snow resistance brake pull rod with electroscope |
| CN201503466U (en) * | 2009-10-20 | 2010-06-09 | 刘进生 | Rain and snow prevention high-low voltage electroscope with insulators |
| CN202120771U (en) * | 2011-07-01 | 2012-01-18 | 段健鹏 | Multifunctional insulating rod |
| CN202172021U (en) * | 2011-06-22 | 2012-03-21 | 辽宁省电力有限公司铁岭供电公司 | Rainproof built-in electricity-testing type insulating operating rod |
| CN202813169U (en) * | 2012-07-07 | 2013-03-20 | 河南省电力公司郑州供电公司 | Lighting device for night use of insulating rod and electroscope |
| CN202930254U (en) * | 2012-11-29 | 2013-05-08 | 林生得 | Multifunctional insulation control stick |
| CN202975129U (en) * | 2012-11-27 | 2013-06-05 | 嵩县电业局 | Rain- and snow-proof high-voltage acousto-optic electroscope |
| CN204882824U (en) * | 2015-09-01 | 2015-12-16 | 国网冀北电力有限公司廊坊供电公司 | Test electric action bars |
| CN206601434U (en) * | 2017-04-06 | 2017-10-31 | 国家电网公司 | One kind illumination electrical verification alarm integral operational bar |
-
2017
- 2017-04-06 CN CN201710219408.1A patent/CN106841756A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201282036Y (en) * | 2008-10-31 | 2009-07-29 | 刘进生 | Rain/snow resistance brake pull rod with electroscope |
| CN201503466U (en) * | 2009-10-20 | 2010-06-09 | 刘进生 | Rain and snow prevention high-low voltage electroscope with insulators |
| CN202172021U (en) * | 2011-06-22 | 2012-03-21 | 辽宁省电力有限公司铁岭供电公司 | Rainproof built-in electricity-testing type insulating operating rod |
| CN202120771U (en) * | 2011-07-01 | 2012-01-18 | 段健鹏 | Multifunctional insulating rod |
| CN202813169U (en) * | 2012-07-07 | 2013-03-20 | 河南省电力公司郑州供电公司 | Lighting device for night use of insulating rod and electroscope |
| CN202975129U (en) * | 2012-11-27 | 2013-06-05 | 嵩县电业局 | Rain- and snow-proof high-voltage acousto-optic electroscope |
| CN202930254U (en) * | 2012-11-29 | 2013-05-08 | 林生得 | Multifunctional insulation control stick |
| CN204882824U (en) * | 2015-09-01 | 2015-12-16 | 国网冀北电力有限公司廊坊供电公司 | Test electric action bars |
| CN206601434U (en) * | 2017-04-06 | 2017-10-31 | 国家电网公司 | One kind illumination electrical verification alarm integral operational bar |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196111A (en) * | 2017-08-18 | 2018-06-22 | 广东电网有限责任公司中山供电局 | A kind of circuit electroscopic device of non-contact type |
| CN109599788A (en) * | 2018-11-27 | 2019-04-09 | 国家电网有限公司 | A kind of insulating bar |
| CN109605487A (en) * | 2018-11-27 | 2019-04-12 | 国家电网有限公司 | A kind of remover of high pressure gas impurity removing |
| CN109901097A (en) * | 2019-04-17 | 2019-06-18 | 贵州电网有限责任公司 | A kind of Portable, personal ac high-voltage simulator |
| CN111029962A (en) * | 2019-12-10 | 2020-04-17 | 深圳供电局有限公司 | Test electric formula insulating bar |
| CN113917382A (en) * | 2021-09-28 | 2022-01-11 | 广东电网有限责任公司 | High-voltage generator and control method |
| CN113917382B (en) * | 2021-09-28 | 2023-07-14 | 广东电网有限责任公司 | High-voltage generator and control method |
| CN114137284A (en) * | 2021-11-06 | 2022-03-04 | 深圳供电局有限公司 | Electric power overhaul tool |
| CN114137284B (en) * | 2021-11-06 | 2023-08-25 | 深圳供电局有限公司 | Electric power overhauling tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106841756A (en) | One kind illumination electrical verification alarm integral operational bar | |
| CN201230185Y (en) | Failure eliminating device for electric power line | |
| CN202120771U (en) | Multifunctional insulating rod | |
| CN108879546A (en) | A kind of anti-high-voltage line drop device and application method | |
| CN206601434U (en) | One kind illumination electrical verification alarm integral operational bar | |
| CN106409443A (en) | Insulator with lightning arrester and fault indicator | |
| CN203466090U (en) | Brake pull rod with electroscopic function | |
| CN104269774A (en) | Deicing device for electric transmission line | |
| CN207834125U (en) | A kind of multifunction pouring brake-operating rod(lever) | |
| CN206402991U (en) | A kind of solar insect-killing light direct current integrated plate | |
| CN202735396U (en) | Portable multifunctional electroscope | |
| CN208334483U (en) | Rain-proof type electroscope | |
| CN205943791U (en) | Electricity can be tested and insulating bar high pressure brake pullrod is used night | |
| CN201475959U (en) | Illumination insulating operation rod | |
| CN204717565U (en) | A kind of energy-conserving road lamp of easy access | |
| CN205609371U (en) | Test insulating pull rod of electric formula | |
| CN205407064U (en) | Action bars for electric power construction | |
| CN204731396U (en) | A kind of counter of lightning arrester live testing instrument and system | |
| CN203941223U (en) | Non-maintaining condensing type electroscope | |
| CN207895996U (en) | A kind of Multifunctional insulating rod | |
| CN206179696U (en) | Test electrical zero gram stick | |
| CN206370651U (en) | A kind of multifunction power service kit | |
| CN206834704U (en) | A kind of separate type protection type earthing box for electric cable | |
| CN203596335U (en) | Insulation positioning operation lever for drop-out fuse | |
| CN204884918U (en) | Integral type insulating bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |