CN108133876A - Pincers are repaired in a kind of high-altitude electrification - Google Patents

Pincers are repaired in a kind of high-altitude electrification Download PDF

Info

Publication number
CN108133876A
CN108133876A CN201711385449.4A CN201711385449A CN108133876A CN 108133876 A CN108133876 A CN 108133876A CN 201711385449 A CN201711385449 A CN 201711385449A CN 108133876 A CN108133876 A CN 108133876A
Authority
CN
China
Prior art keywords
pulley
fixed
telescopic rod
pincers
clamp arm
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
Application number
CN201711385449.4A
Other languages
Chinese (zh)
Inventor
徐爱选
卢冲
李晋阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
Raoyang Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
Raoyang Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd, Raoyang Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical Hengshui Power Supply Co of State Grid Hebei Electric Power Co Ltd
Priority to CN201711385449.4A priority Critical patent/CN108133876A/en
Publication of CN108133876A publication Critical patent/CN108133876A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/25Safety arrangements preventing or inhibiting contact with live parts, including operation of isolation on removal of cover
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/0208Tools for inserting and removing fuses
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear

Abstract

It is charged the present invention provides a kind of high-altitude and repairs pincers, the present invention is to solve the above problems, including upper operation portion, lower operation portion and the adjustment portion for connecting the upper operation portion and lower operation portion;The upper operation portion is clamped to repair, including left plier, right plier, left clamp arm, right clamp arm and connection shaft;Resetting spring is provided between the left plier and left clamp arm;The present invention can carry out the reparation of fuse in the state of energization, and need not carry out working at height, and normal power supply has not only been effectively ensured, has improved work efficiency, moreover it is possible to effective guarantee service personnel safety.

Description

Pincers are repaired in a kind of high-altitude electrification
Technical field
The present invention relates to electric armour clamp fields, and in particular to pincers are repaired in a kind of high-altitude electrification.
Background technology
As good service engineering deepens continuously, power supply reliability is promoted into it in the weight in this stage of power supply department Weight.And it is exactly to promote one of safeguard of power supply reliability to reduce frequency of power cut and shorten power off time.Fuse extensively should It is using most as short circuit and the protector of overcurrent in high and low voltage electric distribution system and control system and electrical equipment One of universal protection device.And since condition limits, the old drop out fuse damage in county part cannot be replaced in time Equipment safety accident is caused to happen occasionally.Since natural conditions or installation lack of standardization easily cause during fuse use Silk phenomenon is hooked, causes fuse connection is lack of standardization to cause security risk.Traditional restorative procedure is that advanced circuit has a power failure, Ran Houyou Service personnel carries out working at height repair fuse.
Invention content
To solve the above problems, the present invention provides a kind of high-altitude charge repair pincers, can in the state of energization into The reparation of row fuse, and working at height need not be carried out, normal power supply has not only been effectively ensured, has improved work efficiency, moreover it is possible to Effective guarantee service personnel safety.
The present invention is to solve the above problems, used technical solution is as follows:
The present invention includes upper operation portion, lower operation portion and the adjustment portion for connecting the upper operation portion and lower operation portion;
The upper operation portion is clamped to repair, including left plier, right plier, left clamp arm, right clamp arm and connection shaft;The left pincers Resetting spring is provided between mouth and left clamp arm;
The adjustment portion includes the extension bar being connected with the right clamp arm end and is connected with the left clamp arm end flexible Bar;The telescopic rod is hollow pipe;The telescopic rod includes telescopic rod epimere, telescopic rod stage casing and telescopic rod hypomere;It is described Telescopic rod epimere is internally provided with pulley blocks;The pulley blocks include the first fixed pulley, the second fixed pulley and third from top to bottom Fixed pulley and the first movable pulley, the second movable pulley, third movable pulley;First fixed pulley, the second fixed pulley and third are determined Pulley is sequentially connected;First fixed pulley is fixed on the left clamp arm end;The present invention utilizes three groups of movable pulleys and fixed pulley It is dynamic determine Combined pulley, the wherein displacement at B ends is SB, the displacement at A ends is SA, SA=7SB, and the displacement at B ends is operation handle The displacement of the insulation operating rope of one end, the displacement at A ends are the displacement of extension bar end insulation drawstring.Each pulley pendulum in order to prevent Dynamic, the diameter of each pulley is identical, and can put intersegmental part on telescopic rod into just, and each section of rope is in contact in order to prevent, The groove depth of six pulleys is different, and the groove depth of the first fixed pulley, the second fixed pulley and third fixed pulley is sequentially increased, and first is dynamic Pulley, the second movable pulley, third movable pulley slot reduce successively.
The lower operation portion includes being set to the operation handle of the telescopic rod hypomere end, is set to the operation handle The reel on top;Junction installation between the operation handle and the telescopic rod hypomere end is used for the spring of reset.
The extension bar end is fixedly connected with insulation drawstring;The insulation drawstring other end moves cunning around third successively The first dynamic cunning is fixed on after wheel, the first fixed pulley, the second movable pulley, the second fixed pulley, the first movable pulley and third fixed pulley On wheel;Insulation operating rope is fixedly connected on third movable pulley;The insulation operating rope other end is wound on the reel After be fixed in operation handle.
As a further improvement on the present invention, it is provided with camera on the left plier;The operation handle top setting There is display screen;The camera passes through bluetooth or wireless data connection with the display screen;The display screen can be intelligent hand Machine.
As a further improvement on the present invention, the telescopic rod is adjustable sleeve structure;The telescopic rod knot of the present invention Structure and device for cleaning glass stretch bar portion structure it is identical, for the common knowledge that those of ordinary skill in the art generally learn, herein No longer specifically repeat.
As a further improvement on the present invention, the reel includes fixed part, rotation section and the connection fixed part With the connecting portion of rotation section;The fixed part is fixed on the telescopic rod hypomere end;The rotation section and the fixed part are Rotatable connection;The rotation section is with the connecting portion to be fixedly connected.
As a further improvement on the present invention, the extension bar end is provided with retainer ring;The insulation drawstring is tied up in institute It states in retainer ring.
As a further improvement on the present invention, the insulation drawstring and the insulation operating rope are non-extensible insulation Rope.
As a further improvement on the present invention, the operation handle lower end is provided with buffering pulley;The insulation operating rope After the other end is wound on the reel, further around being fixed in operation handle after excessively described buffering pulley, in order to make manipulator When angle between handle and telescopic rod changes, the length for the operating rope that insulate changes as possible greatly, the non-operation of operation handle During state, the angle and angle C between insulation operating rope and operation handle are as possible close to right angle.
The present invention has the following technical effect that:
The upkeep operation in high-altitude is transferred to ground by the present invention, in the state of it need not have a power failure, you can utilizes the operation control on ground The operation in high-altitude processed, greatly facilitates the upkeep operation of service personnel, while avoids the dangerous and inefficient of working at height Rate;The present invention sets camera in upper operation portion, sets display in lower operation portion, can clearly illustrate working at height feelings Condition, accurately takes reclamation activities, greatly avoids maloperation phenomenon;The present invention determine Combined pulley using dynamic, by displacement by than Example reduces amplification, and the purpose that upper operation portion is precisely controlled using lower operation portion is realized with reference to lever principle;Left plier and left clamp arm Between be provided with resetting spring, make reparation pincers it is every progress once-through operation after reset naturally, it is time saving and energy saving;Telescopic rod is adjustable Sleeve structure, can length adjustment be carried out according to the position at failure and service personnel's height, telescopic rod is hollow pipe, is used for Combined pulley inside accommodating;The reel side of the present invention is fixed, and side is rotatable, can twine extra insulation drawstring Around the drawstring that ensures to insulate is always in tensioned state;When setting buffering pulley can make pinching operation handle, the length for the drawstring that insulate Degree variation is big as possible, so as to preferably control upper operation portion.
Description of the drawings
Accompanying drawing 1 is the structural representation of the present invention;
Internal structure chart of the attached drawing 2 for the present invention;
Attached drawing 3 is the schematic diagram of pulley blocks of the present invention;
Attached drawing 4 is the structure diagram of reel.
In attached drawing:The left pliers of 1-;The right pliers of 2-;3- right clamp arms;4- left clamp arms;5- telescopic rod epimeres;6- telescopic rods stage casing; 7- telescopic rod hypomeres;8- retainer rings;9- insulation drawstrings;10- display screens;11- reels;11-1 fixed parts;11-2 connecting portions; 11-3 rotation sections;12- operation handles;The first fixed pulleys of 13-;The second fixed pulleys of 14-;15- third fixed pulleys;16- first is dynamic to be slided Wheel;The second movable pulleys of 17-;18- third movable pulleys;19- extension bars;20- resetting springs;21- insulation operating ropes;22- cameras; 23- buffers pulley.
Specific embodiment
Technical scheme of the present invention is further elaborated below in conjunction with the drawings and specific embodiments.
As shown in Figs 1-4, the present invention includes upper operation portion, lower operation portion and connects the upper operation portion and lower operation portion Adjustment portion;
The upper operation portion is clamped to repair, including left plier 1, right plier 2, left clamp arm 4, right clamp arm 3 and connection shaft;It is described Resetting spring 20 is provided between left plier 1 and left clamp arm 4;
The adjustment portion includes the extension bar 19 that is connected with 3 end of right clamp arm and is connected with 4 end of left clamp arm Telescopic rod;The telescopic rod is hollow pipe;The telescopic rod includes telescopic rod epimere 5, telescopic rod stage casing 6 and telescopic rod hypomere 7;The telescopic rod epimere 5 is internally provided with pulley blocks;It is calmly sliding that the pulley blocks include the first fixed pulley 13, second from top to bottom Wheel 14 and 15 and first movable pulley 16 of third fixed pulley, the second movable pulley 17, third movable pulley 18;First fixed pulley 13rd, the second fixed pulley 14 and third fixed pulley 15 are sequentially connected;First fixed pulley 13 is fixed on 4 end of left clamp arm; The present invention determines Combined pulley using three groups of movable pulleys and the dynamic of fixed pulley, and the wherein displacement at B ends is SB, the displacement at A ends is SA, SA= 7SB, and the displacement at B ends is the displacement of the insulation operating rope of 12 one end of operation handle, the displacement at A ends is exhausted for 19 end of extension bar The displacement of edge drawstring 9.Each pulley swing in order to prevent, the diameter of each pulley is identical, and can put on telescopic rod just Inside section 5, each section of rope is in contact in order to prevent, and the groove depth of six pulleys is different, the first fixed pulley 13, the second fixed pulley 14 and the groove depth of third fixed pulley 15 be sequentially increased, the first movable pulley 16, the second movable pulley 17, third movable pulley 18 slot according to Secondary diminution.
The lower operation portion includes being set to the operation handle 12 of 7 end of telescopic rod hypomere, is set to the operation The reel 11 on 12 top of handle;Junction installation between the operation handle 12 and 7 end of telescopic rod hypomere is used for The spring of reset.
19 end of extension bar is fixedly connected with insulation drawstring 9;Insulation 9 other end of drawstring moves successively around third After pulley 18, the first fixed pulley 13, the second movable pulley 17, the second fixed pulley 14, the first movable pulley 16 and third fixed pulley 15 It is fixed on the first movable pulley 16;Insulation operating rope 21 is fixedly connected on third movable pulley 18;The insulation operating rope 21 is another One end is fixed on after being wound on the reel 11 in the retainer ring 8 in operation handle 12.
Camera 22 is provided on the left plier 1;The present embodiment uses the miniature webcam bought from market, and brand is Gao Shu, model GSD10;12 top of operation handle is provided with display screen 10;Display screen 10 described in the present embodiment is intelligence Mobile phone.The camera 22 passes through bluetooth connection with the display screen 10;
The telescopic rod is adjustable sleeve structure;Telescopic rod structure and the device for cleaning glass of the present invention stretches the structure of bar portion It is identical, for the common knowledge that those of ordinary skill in the art generally learn, no longer specifically repeat herein.
The reel 11 includes fixed part 11-1, rotation section 11-3 and the connection fixed part 11-1 and rotation section The connecting portion 11-2 of 11-3;The fixed part 11-1 is fixed on 7 end of telescopic rod hypomere;The rotation section 11-3 and described Fixed part 11-1 is rotatable connection;The rotation section 11-3 is with the connecting portion 11-2 to be fixedly connected.
The insulation drawstring 9 is non-extensible insulating cord with the insulation operating rope 21.
12 lower end of operation handle is provided with buffering pulley 23;Insulation 21 other end of operating rope is in the reel After being wound on 11, further around being fixed in operation handle 12 after excessively described buffering pulley 23, in order to make operation handle 12 and telescopic rod Between angle when changing, the length variation of insulation operating rope 21 as possible greatly, during the 12 non-job state of operation handle, Angle and angle C between insulation operating rope 21 and operation handle 12 is as possible close to right angle.
The use process of the present invention is as follows:
Smart mobile phone is opened, makes itself and 22 bluetooth connection of camera;According to the height of failure, the rotation section of first spinning-reel 11 Insulation operating rope 21 is discharged partial-length by 11-3, and then the length of slow adjustable telescopic rod is to can get at failure point After start to operate, pinching operation handle 12, the then operating rope 21 that insulate moves up, and third movable pulley 18 moves up equal length Distance, according to SA=7SB, insulation drawstring 9 moves up 7 times of distance, and according to lever principle, left plier 1 and right plier 2 occur It is closed;Conversely, unclamping operation handle 12, under the reset response of spring, operation handle 12 is returned to original angle, insulation operation Rope 21 moves down, and third movable pulley 18 moves up the distance of equal length, according to SA=7SB, insulation drawstring 9 move down 7 Distance again, according to lever principle, left plier 1 and right plier 2 are opened;It is carried out with the unlatching and closure of left plier 1 and right plier 2 The reparation of fuse;Camera 22 can by the picture transmission of position that failure occurs to display 10, i.e., on smart mobile phone, from And by can accurately carry out fault restoration.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention. A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one The most wide range caused.

Claims (7)

1. pincers are repaired in a kind of high-altitude electrification, it is characterised in that:It includes operation portion, lower operation portion and the connection upper operation portion With the adjustment portion of lower operation portion;
The upper operation portion is clamped to repair, including left plier(1), right plier(2), left clamp arm(4), right clamp arm(3)And connection Shaft;The left plier(1)With left clamp arm(4)Between be provided with resetting spring(20);
The adjustment portion includes and the right clamp arm(3)The extension bar that end is connected(19)With with the left clamp arm(4)End Connected telescopic rod;The telescopic rod is hollow pipe;The telescopic rod includes telescopic rod epimere(5), telescopic rod stage casing(6)And Telescopic rod hypomere(7);The telescopic rod epimere(5)It is internally provided with pulley blocks;It is fixed that the pulley blocks include first from top to bottom Pulley(13), the second fixed pulley(14)With third fixed pulley(15)And first movable pulley(16), the second movable pulley(17), third Movable pulley(18);First fixed pulley(13), the second fixed pulley(14)With third fixed pulley(15)It is sequentially connected;Described first Fixed pulley(13)It is fixed on the left clamp arm(4)End;
The lower operation portion includes being set to the telescopic rod hypomere(7)The operation handle of end(12), be set to the operation Handle(12)The reel on top(11);
The extension bar(19)End is fixedly connected with insulation drawstring(9);The insulation drawstring(9)The other end bypasses third successively Movable pulley(18), the first fixed pulley(13), the second movable pulley(17), the second fixed pulley(14), the first movable pulley(16)And the Three fixed pulleys(15)After be fixed on the first movable pulley(16)On;Third movable pulley(18)On be fixedly connected with insulation operating rope (21);The insulation operating rope(21)The other end is in the reel(11)Operation handle is fixed on after upper winding(12)On.
2. pincers are repaired in a kind of high-altitude electrification according to claim 1, it is characterised in that:The left plier(1)On be provided with Camera(22);The operation handle(12)Top is provided with display screen(10);The camera(22)With the display screen (10)Pass through bluetooth connection.
3. pincers are repaired in a kind of high-altitude electrification according to claim 1, it is characterised in that:The telescopic rod is adjustable set Pipe structure.
4. pincers are repaired in a kind of high-altitude electrification according to claim 1, it is characterised in that:The reel(11)Including fixation Portion(11-1), rotation section(11-3)And the connection fixed part(11-1)And rotation section(11-3)Connecting portion(11-2);Institute State fixed part(11-1)It is fixed on the telescopic rod hypomere(7)End;The rotation section(11-3)With the fixed part(11-1) For rotatable connection;The rotation section(11-3)With the connecting portion(11-2)To be fixedly connected.
5. pincers are repaired in a kind of high-altitude electrification according to claim 1, it is characterised in that:The extension bar(19)End is set There is retainer ring(8);The insulation drawstring(9)It ties up in the retainer ring(8)It is interior.
6. pincers are repaired in a kind of high-altitude electrification according to claim 1, it is characterised in that:The insulation drawstring(9)With it is described Insulate operating rope(21)For non-extensible insulating cord.
7. pincers are repaired in a kind of high-altitude electrification according to claim 1, it is characterised in that:The operation handle(12)Lower end is set It is equipped with buffering pulley(23);The insulation operating rope(21)The other end is in the reel(11)After upper winding, further around excessively described Buffer pulley(23)After be fixed on operation handle(12)On.
CN201711385449.4A 2017-12-20 2017-12-20 Pincers are repaired in a kind of high-altitude electrification Pending CN108133876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711385449.4A CN108133876A (en) 2017-12-20 2017-12-20 Pincers are repaired in a kind of high-altitude electrification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711385449.4A CN108133876A (en) 2017-12-20 2017-12-20 Pincers are repaired in a kind of high-altitude electrification

Publications (1)

Publication Number Publication Date
CN108133876A true CN108133876A (en) 2018-06-08

Family

ID=62390878

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711385449.4A Pending CN108133876A (en) 2017-12-20 2017-12-20 Pincers are repaired in a kind of high-altitude electrification

Country Status (1)

Country Link
CN (1) CN108133876A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB384468A (en) * 1932-01-26 1932-12-08 Arthur Pearson Ibbott A new and improved rapidly adjusting spanner to take nuts of different sizes
CN202384516U (en) * 2011-09-22 2012-08-15 河南省电力公司焦作供电公司 Secondary voltage drop live-line wiring device
CN203690524U (en) * 2014-02-11 2014-07-02 国家电网公司 Test operating lever for outdoor high-voltage class transformer
CN104022373A (en) * 2014-06-24 2014-09-03 国家电网公司 Shield ring wire clamp for ground-controlled insulator
CN204577942U (en) * 2015-05-14 2015-08-19 国网山东省电力公司潍坊供电公司 High-tension fuse clamp
CN204707543U (en) * 2015-06-12 2015-10-21 成都理工大学 A kind of sliding Labour-saving tree pruner
CN204858416U (en) * 2015-08-18 2015-12-09 广东电网有限责任公司惠州供电局 Debris clearance anchor clamps of distribution framework
CN205452585U (en) * 2015-12-08 2016-08-10 广东电网有限责任公司云浮供电局 Earthing for work is traditional thread binding to be put
CN205960495U (en) * 2016-08-31 2017-02-15 国网河南西峡县供电公司 Insulated clamp for high -tension fuse
CN206134976U (en) * 2016-10-24 2017-04-26 广西电网有限责任公司防城港供电局 Novel telescopic high altitude jointing clamp

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB384468A (en) * 1932-01-26 1932-12-08 Arthur Pearson Ibbott A new and improved rapidly adjusting spanner to take nuts of different sizes
CN202384516U (en) * 2011-09-22 2012-08-15 河南省电力公司焦作供电公司 Secondary voltage drop live-line wiring device
CN203690524U (en) * 2014-02-11 2014-07-02 国家电网公司 Test operating lever for outdoor high-voltage class transformer
CN104022373A (en) * 2014-06-24 2014-09-03 国家电网公司 Shield ring wire clamp for ground-controlled insulator
CN204577942U (en) * 2015-05-14 2015-08-19 国网山东省电力公司潍坊供电公司 High-tension fuse clamp
CN204707543U (en) * 2015-06-12 2015-10-21 成都理工大学 A kind of sliding Labour-saving tree pruner
CN204858416U (en) * 2015-08-18 2015-12-09 广东电网有限责任公司惠州供电局 Debris clearance anchor clamps of distribution framework
CN205452585U (en) * 2015-12-08 2016-08-10 广东电网有限责任公司云浮供电局 Earthing for work is traditional thread binding to be put
CN205960495U (en) * 2016-08-31 2017-02-15 国网河南西峡县供电公司 Insulated clamp for high -tension fuse
CN206134976U (en) * 2016-10-24 2017-04-26 广西电网有限责任公司防城港供电局 Novel telescopic high altitude jointing clamp

Similar Documents

Publication Publication Date Title
CN106992469A (en) A kind of hot line maintenance robot and its upper and lower line control method
CN209419096U (en) Transmission line of electricity block device
CN105470867B (en) It is a kind of that bar method and its device are stepped on based on unmanned plane automatically
CN108133876A (en) Pincers are repaired in a kind of high-altitude electrification
CN107959261A (en) A kind of intelligent transmission line patrol block removing robot
CN207939090U (en) A kind of eedle threader of high-tension line electrified Work robot
CN109873363A (en) Extra high voltage direct current transmission line method for inspecting
CN104282513B (en) The method of fuse switch and change of fuse thereof
CN205666350U (en) High voltage live connects lead wire device
CN208596907U (en) A kind of payingoff construction spanning the transmission line road lives across system
CN209046144U (en) A kind of cable wiring auxiliary device
CN204088250U (en) Fuse switch
CN206388668U (en) A kind of installation tool of fuse switch
CN106451206B (en) Transmission line of electricity self-crawling type failure eliminating device
CN102290738B (en) Construction method for replacing 35kV line tension pole cross arm
CN203491605U (en) High voltage line foreign matter removing operation tool
CN104764994B (en) Fuse on-line monitoring system
CN207877039U (en) A kind of electric power cable first-aid repair construction take-up
CN202781131U (en) Clamp-type manipulator for taking nests in substation
JPH0475222A (en) Method of changing operation string for switch or the like on pole
CN105406402A (en) Foldable and lightweight single-string output type strain insulator string device
CN105098633B (en) The foreign matter remover safeguarded for power equipment
CN204994311U (en) Tree pruner
CN218334365U (en) Avoid installing and removing high-low pressure earth connection touching human insulating support
CN205159921U (en) A insulating pole of embracing that is used for changing with electricity with many times transmission line strain insulator string in tower

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