CN102510029A - Ground potential electrified bar cutter device changing method - Google Patents

Ground potential electrified bar cutter device changing method Download PDF

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Publication number
CN102510029A
CN102510029A CN2011103752213A CN201110375221A CN102510029A CN 102510029 A CN102510029 A CN 102510029A CN 2011103752213 A CN2011103752213 A CN 2011103752213A CN 201110375221 A CN201110375221 A CN 201110375221A CN 102510029 A CN102510029 A CN 102510029A
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China
Prior art keywords
bar
operating personnel
knife system
brace
cantilever
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CN2011103752213A
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CN102510029B (en
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陆茂鑫
王昭夏
赵国柱
戴阿兴
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State Grid Corp of China SGCC
Shanghai Municipal Electric Power Co
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Shanghai Municipal Electric Power Co
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Abstract

The invention relates to a ground potential electrified bar cutter device changing method which belongs to the field of the overhead installation of wires or cables. A ground potential operation method is adopted, the electrified change to a bar cutter device on a bar is realized by rotating a turning derrick mast and an insulated lifting arm capable of rotating for 360 degrees on the premise of ensuring the minimum safe distance of the electrified operation, so that the power-off time is reduced, the working efficiency of overhaul is improved, the effective transmission time and on-line power supply rate of a power supply line are improved, and the running safety and reliability of a power grid are improved. During an operation process, no insulated bucket arm car or platform is needed, the method is applicable to lines and operation places that electrified operation vehicles cannot reach, electrified operation projects are increased, the operation scope is expanded, the planning of overhaul is effectively improved, the operation workload is reduced, and the actual promotional role is played to the electrified operation of wide rural and urban areas. The ground potential electrified bar cutter device changing method can be widely applied to the fields of the electrified overhaul and maintenance of overhead power lines.

Description

A kind of method of earth potential live transposing bar knife system
Technical field
The invention belongs to the built on stilts installing area of electric wire or cable, relate in particular to a kind of charged for replacement/installation method that is used for the bar knife system.
Background technology
On distribution line, the bar knife system is a kind of change power system operating mode, the electric equipment of control system trend.
The bar knife system need be changed through after the use of certain time limit, to guarantee the reliable and stable operation of circuit.
For fear of line outage, electric company adopts the mode of live line working to carry out being assigned a new job of bar knife system as much as possible usually.
At present, the operating type of charged transposing bar cutter must rely on aerial lift device with insulated arm, uses the medial potential working method.
Aforesaid " medial potential working method " refers to that human body is in the potential state between earth electrode and the electrified body, uses insulating tool indirect contact charging equipment to reach the method for its maintenance purpose.
Medial potential working be the operating personnel pass through insulating tool (ladder, platform, car) to the earth insulation back in the operation of closely live line working being carried out with insulating tool; So planting operational method, to be applicable to that mainly setting leaves the earth nearer; Or the completion of setting complex equipments employing earth potential working is difficult, has the occasion of certain risk again with equal potential working.
Yet; By the construction site of transposing bar cutter is positioned at limit, rivers and lakes, railway high speed, by the aerial conveyor traffic, near the farm of farmland and during crowded narrow roadside, road; Aerial lift device with insulated arm can't be stopped; Promptly can not use existing live line working method to carry out operation, transposing bar cutter will be had to line outage.
Suppose to have a power failure and change the bar knife system, will stop to use as a servant two circuits at every turn at least, the average power failure changed bar cutter interruption duration at least 4 hours, had a strong impact on the normal electricity consumption of power consumer, caused user and electric power enterprise both sides' economic loss.
When the above-mentioned bar knife system that construction environment restriction arranged of transposing, press for and change existing operating type, research and develop a kind of new charged for replacement operating type.
Summary of the invention
Technical problem to be solved by this invention provides the method for a kind of earth potential live transposing bar knife system, and it can be in the environment that aerial lift device with insulated arm and crane can't use, under the situation that circuit does not have a power failure; Adopt the earth potential working method to realize charged transposing bar knife system; It has remedied overhead insulation bucket arm vehicle can not arrive the shortcoming that setting is changed the bar cutter, has increased the live line working project newly, has enlarged job area; Improved the planned of service work effectively; Reduced the operation element amount, also improved the fail safe and the reliability of operation of power networks simultaneously, for positive promotion and facilitation have been played in the live line working of vast outskirts of a town and rural area.
Technical scheme of the present invention is: the method that a kind of earth potential live transposing bar knife system is provided; Comprise and step on bar operating personnel and Ground Operation personnel cooperation; Bar knife system to being arranged on the bar is changed, and wherein, described bar knife system is positioned at the head of the mast; Coupled three-phase overhead transmission line and support cross-arm thereof are positioned on the electric pole of bar knife system below, it is characterized in that:
A, step on the bar operating personnel and use insulating bar that the lightning arrester of three-phase overhead transmission line is out of service;
B, step on the bar operating personnel on the electric pole that supports below the cross-arm position, move towards into 90 degree angle directions with the three-phase overhead transmission line, the first cross-brace cantilever is set, its said first cross-brace cantilever is provided with one apart from an end of electric pole far-end and fixedly turns to base;
C, step on the bar operating personnel horizontal cantilever support above; The second cross-brace cantilever is set in the same way; And the second cross-brace cantilever apart from electric pole near-end one side and the first cross-brace cantilever apart between electric pole far-end one side, be provided for strengthening the diagonal brace of the first cross-brace cantilever;
D, step on the bar operating personnel wire tension-resistant insulator dielectric cover is installed, carry out insulation and cover measure;
E, to step on the bar operating personnel be platform with the first cross-brace cantilever, uses insulating tool to carry out side phase plug-in strip both sides pile crown lead-in wire dismounting work within the three-phase overhead transmission line, and the pile crown lead-in wire dropped to the temporary fixed place of phase conductor fix;
F, to step on the bar operating personnel be platform with first, second cross-brace cantilever; Use insulating tool to remove respectively among the three-phase overhead transmission line mutually and outside plug-in strip both sides pile crown lead-in wire mutually, and each pile crown gone between to drop to the temporary fixed place of phase conductor fix;
G, step on the bar operating personnel and on first, second cross-brace cantilever, install vertical supporting bar,, install and turn to type gin pole and insulation arm assembly thereof on the top of vertical supporting bar;
H, Ground Operation personnel install the ground hoisting equipment;
I, step on bar operating personnel and Ground Operation personnel and cooperate, at insulation arm assembly, turn between type gin pole and the ground hoisting equipment lifting rope is installed;
J, step on the bar operating personnel and climb up the second cross-brace cantilever, turn to insulation arm to the bar knife system top correct position of type gin pole, lifting rope is fixed, is connected with bar knife system to be replaced;
K, Ground Operation personnel hang tight to tightening stress through the lifting rope that the ground hoisting equipment will be connected with the bar knife system slightly;
L, step on the fixed screw between bar operating personnel removal rod knife system and the bar knife support,
M, Ground Operation personnel and Deng bar operating personnel cooperate; Through the ground hoisting equipment bar knife system to be replaced is sling; Step on the insulation arm that the bar operating personnel turns to the type gin pole; Bar knife system to be replaced is moved to outside the area of space of three-phase overhead transmission line place, then it is reduced to ground;
N, Ground Operation personnel will be cemented in the terminal bar knife system to be replaced of lifting rope and pull down, and new bar knife system is cemented in the lifting rope end;
O, Ground Operation personnel and Deng bar operating personnel cooperate, and will new bar knife system slinging through the ground hoisting equipment, position to be installed belongs to the plane to the bar;
P, step on the insulation arm that the bar operating personnel turns to the type gin pole, new bar knife system is moved to position to be installed on the bar;
Q, step on bar operating personnel and Ground Operation personnel and cooperate,, new bar knife system is slowly moved on the bar cutter fixed support through loosening lifting rope;
R, step on the fixed screw between bar operating personnel anchorage bar knife system and the bar knife support, install and fix new bar knife system, to the new bar knife system in place debugging of drawing back, close, the inspection plug-in strip contacts and meets the requirements, and then the bar knife system is placed unzipped positions;
S, step on the bar operating personnel and retreat on first, second cross-brace cantilever, order begins to recover being connected between side phase outside the three-phase overhead transmission line, middle phase and inboard phase both sides pile crown lead-in wire and the bar knife system respectively successively;
T, step on the bar operating personnel and cooperate to remove and turn to each parts of type gin pole and associated tracks strain insulator insulating cover, measure is covered in the insulation of removing on each phase circuit;
U, step on the bar operating personnel and use insulating bar that the lightning arrester of three-phase overhead transmission line is put into operation;
V, step on the bar operating personnel and will insulate after operative employee's utensil winches to ground, remove successively and turn to type gin pole and insulation arm assembly, the second cross-brace cantilever and the first cross-brace cantilever, remove on the bar behind the operation legacy, return ground;
W, Ground Operation personnel remove the ground hoisting equipment;
X, operating personnel put the Ground Operation scene in order, check power tool, report operation to scheduling on duty and finish, and withdraw operation field.
Wherein, described insulation arm assembly is positioned at the upper end that turns to the type gin pole, and vertical height and position of described insulation arm assembly is higher than the plan position approach that bar knife system to be replaced belongs to.
Its described inboard is meant mutually in the three-phase overhead transmission line that near a phase overhead transmission line of stepping on the bar operating personnel, the described outside is meant in the three-phase overhead transmission line away from a phase overhead transmission line of stepping on the bar operating personnel mutually.
The described method of present techniques scheme adopts the earth potential working method, turns to type gin pole and insulation lifting arm that can 360 degree rotations by rotation; Under the prerequisite that guarantees the live line working minimum safe distance; Realize charged transposing bar upper boom knife system,, improve service work efficient to reduce interruption duration; Improve the effective transmission of electricity time and the online power supply rate of supply line, improve the fail safe and the reliability of operation of power networks.
Compare with prior art, advantage of the present invention is:
1. under the situation that circuit does not have a power failure, adopt the earth potential working method to realize charged transposing bar knife system, can reduce interruption duration, effectively improve the efficient of service work, improve the effective transmission of electricity time and the online power supply rate of supply line;
To the operation place require the space little, in operation process, need not by aerial lift device with insulated arm or platform, be fit to live line working vehicle be beyond one's reach circuit and operation place;
3. required power tool is less with device, and all detachable/decompose and a dead lift/carry, significantly reduced the workload of operating.
Description of drawings
Fig. 1 is a job step block diagram of the present invention;
Fig. 2 is the structural representation that the present invention turns to type gin pole and insulation arm assembly thereof.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Among Fig. 1, provided the job step of present techniques scheme, it comprises at least:
A, step on the bar operating personnel and use insulating bar that the lightning arrester of three-phase overhead transmission line is out of service;
B, step on the bar operating personnel on the electric pole that supports below the cross-arm position, move towards into 90 degree angle directions with the three-phase overhead transmission line, the first cross-brace cantilever is set, its said first cross-brace cantilever is provided with one apart from an end of electric pole far-end and fixedly turns to base;
C, step on the bar operating personnel horizontal cantilever support above; The second cross-brace cantilever is set in the same way; And the second cross-brace cantilever apart from electric pole near-end one side and the first cross-brace cantilever apart between electric pole far-end one side, be provided for strengthening the diagonal brace of the first cross-brace cantilever;
D, step on the bar operating personnel wire tension-resistant insulator dielectric cover is installed, carry out insulation and cover measure;
E, to step on the bar operating personnel be platform with the first cross-brace cantilever, uses insulating tool to carry out side phase plug-in strip both sides pile crown lead-in wire dismounting work within the three-phase overhead transmission line, and the pile crown lead-in wire dropped to the temporary fixed place of phase conductor fix;
F, to step on the bar operating personnel be platform with first, second cross-brace cantilever; Use insulating tool to remove respectively among the three-phase overhead transmission line mutually and outside plug-in strip both sides pile crown lead-in wire mutually, and each pile crown gone between to drop to the temporary fixed place of phase conductor fix;
G, step on the bar operating personnel and on first, second cross-brace cantilever, install vertical supporting bar,, install and turn to type gin pole and insulation arm assembly thereof on the top of vertical supporting bar;
H, Ground Operation personnel install the ground hoisting equipment;
I, step on bar operating personnel and Ground Operation personnel and cooperate, at insulation arm assembly, turn between type gin pole and the ground hoisting equipment lifting rope is installed;
J, step on the bar operating personnel and climb up the second cross-brace cantilever, turn to insulation arm to the bar knife system top correct position of type gin pole, lifting rope is fixed, is connected with bar knife system to be replaced;
K, Ground Operation personnel hang tight to tightening stress through the lifting rope that the ground hoisting equipment will be connected with the bar knife system slightly;
L, step on the fixed screw between bar operating personnel removal rod knife system and the bar knife support,
M, Ground Operation personnel and Deng bar operating personnel cooperate; Through the ground hoisting equipment bar knife system to be replaced is sling; Step on the insulation arm that the bar operating personnel turns to the type gin pole; Bar knife system to be replaced is moved to outside the area of space of three-phase overhead transmission line place, then it is reduced to ground;
N, Ground Operation personnel will be cemented in the terminal bar knife system to be replaced of lifting rope and pull down, and new bar knife system is cemented in the lifting rope end;
O, Ground Operation personnel and Deng bar operating personnel cooperate, and will new bar knife system slinging through the ground hoisting equipment, position to be installed belongs to the plane to the bar;
P, step on the insulation arm that the bar operating personnel turns to the type gin pole, new bar knife system is moved to position to be installed on the bar;
Q, step on bar operating personnel and Ground Operation personnel and cooperate,, new bar knife system is slowly moved on the bar cutter fixed support through loosening lifting rope;
R, step on the fixed screw between bar operating personnel anchorage bar knife system and the bar knife support, install and fix new bar knife system, to the new bar knife system in place debugging of drawing back, close, the inspection plug-in strip contacts and meets the requirements, and then the bar knife system is placed unzipped positions;
S, step on the bar operating personnel and retreat on first, second cross-brace cantilever, order begins to recover being connected between side phase outside the three-phase overhead transmission line, middle phase and inboard phase both sides pile crown lead-in wire and the bar knife system respectively successively;
T, step on the bar operating personnel and cooperate to remove and turn to each parts of type gin pole and associated tracks strain insulator insulating cover, measure is covered in the insulation of removing on each phase circuit;
U, step on the bar operating personnel and use insulating bar that the lightning arrester of three-phase overhead transmission line is put into operation;
V, step on the bar operating personnel and will insulate after operative employee's utensil winches to ground, remove successively and turn to type gin pole and insulation arm assembly, the second cross-brace cantilever and the first cross-brace cantilever, remove on the bar behind the operation legacy, return ground;
W, Ground Operation personnel remove the ground hoisting equipment;
X, operating personnel put the Ground Operation scene in order, check power tool, report operation to scheduling on duty and finish, and withdraw operation field.
Its described inboard is meant mutually in the three-phase overhead transmission line that near a phase overhead transmission line of stepping on the bar operating personnel, the described outside is meant in the three-phase overhead transmission line away from a phase overhead transmission line of stepping on the bar operating personnel mutually.
Its described insulation arm assembly is positioned at the upper end that turns to the type gin pole, and vertical height and position of described insulation arm assembly is higher than the plan position approach that bar knife system to be replaced belongs to.
The method of present technique scheme comprises steps on bar operating personnel and Ground Operation personnel cooperation; Bar knife system to being arranged on the bar is changed; Wherein, described bar knife system is positioned at the head of the mast, and coupled three-phase overhead transmission line and support cross-arm thereof are positioned on the electric pole of bar knife system below.
The earth potential working method refers to that human body is under ground (zero) potential state, uses insulating tool indirect contact charging equipment, reaches the method for maintenance purpose.
When being characterized in that human body is in earth potential, do not occupy charging equipment bulk over the ground.
The earth potential working method is a kind of of indirect operating method.
The exploitation of this project can reduce interruption duration, effectively improves the planned of service work, significantly reduces operation class workload; A live line working can be saved a large amount of powered operation operation of equipment steps; And the minimizing of adjustment operational mode also reduces the loss of equipment significantly, once " earth potential two is worn electricity transposing bar cutter " operation of success; Can retrieve about 4 hours electric quantity losses; The popularization of this project with use the adaptive surface will enlarge live line working greatly, from now on maintenance, repairing brought very big benefit, improved the competitive advantage of enterprise.
Economic benefit: if once " earth potential live transposing bar cutter " operation of success can be retrieved about 4 hours electric quantity losses, then each increasable electricity sales amount of operation is:
=1.732 * voltage * electric current * power factor * time * 2
=1.732×10kV×200A×0.78×4×2
≈21615.36kW·H
If with 0.6 yuan of calculating of every kilowatt hour, also just increase by 12969.22 yuan of electricity charge incomes at least.
In addition because this working system need not to use service vehicle when operation, make the consumption of entire job process energy free, reduce discharging, pollution-free.Accomplished green operation truly.
Among Fig. 2, provided the related structural representation that turns to type gin pole and insulation arm assembly thereof of this method, wherein, this device comprises swinging mounting, arm 4, first fixed pulley 1, suspension hook 3, rope 6, second fixed pulley 12, movable pulley 2.
Its swinging mounting is connected with high-tension line tower or electric pole.
Arm 4 comprises free end and stiff end.The stiff end of arm 4 is connected with support, and this stiff end is provided with first fixed pulley 1; The stiff end of arm 4 is provided with second fixed pulley 12.
Rope 6 is set in first fixed pulley 1, second fixed pulley 12, movable pulley 2 successively, is fixed on second fixed pulley, 12 places.
Movable pulley 2 is provided with suspension hook 3.
Swinging mounting comprises the second cross-brace cantilever 8, the first cross-brace cantilever 9, vertical supporting bar 11.
One end of the second cross-brace cantilever 8 is connected with high-tension line tower or electric pole.The other end of the second cross-brace cantilever 8 is connected with vertical supporting bar 11.
One end of the first cross-brace cantilever 9 is connected with high-tension line tower or electric pole; The other end of the first cross-brace cantilever 9 is connected with vertical supporting bar 11.
Swinging mounting also comprises diagonal brace 10.
One end of diagonal brace 10 is connected with the second cross-brace cantilever 8, and the other end of diagonal brace 10 is connected with the first cross-brace cantilever lever 9.
Swinging mounting is provided with steps on foot of ladder 7.
Also be provided with fixedly hound 5 of arm on this device.
Arm 4 through arm fixedly hound 5 be fixed on the vertical supporting bar 11.
After adopting the device of said structure; Because its arm can be gone up the rotation of making 360 degree at vertical supporting bar (also being commonly called as dead man in the industry); And arm, live line working all meet the insulating requirements of live line working safety regulations with insulation ropes and related accessories etc.; Have higher insulating properties, guaranteed live line working personnel's safety, for live line working and safety operation provide guarantee.
In addition, the structure of this device has also guaranteed the part convenient disassembly, helps to realize easily to install under the earth potential state.
Simultaneously, the size of the rotating insulated lifting arm of 360 degree, the minimum safe distance when having guaranteed live line working.
360 degree rotating insulated lifting arm material and structural designs have guaranteed enough mechanical strengths, can realize that the operating personnel stands to carry out " turning over line " operation, play the suspension rod knife system.
The rotation of the rotating insulated lifting arm of 360 degree is operated the arm rotation by the people of the rotating insulated lifting arm of 360 degree lower floor.
The up-down of to be replaced or new bar knife system is operated and is controlled by the Ground Operation personnel, to guarantee at the uniform velocity safety lifting.
Because the present invention adopts the earth potential working method to realize charged transposing bar knife system, can reduce interruption duration, effectively improves the efficient of service work; Improve the effective transmission of electricity time and the online power supply rate of supply line, in operation process, need not, be fit to live line working vehicle be beyond one's reach circuit and operation place by aerial lift device with insulated arm or platform; Increased the live line working project newly; Enlarge job area, improved the planned of service work effectively, reduced the operation element amount; Simultaneously the fail safe and the reliability of operation of power networks have also been improved, for positive promotion and facilitation have been played in the live line working of vast outskirts of a town and rural area.
The present invention can be widely used in hotline maintenance, the area of maintenance of power overhead network.

Claims (4)

1. the method for earth potential live transposing bar knife system; Comprise and step on bar operating personnel and Ground Operation personnel cooperation; Bar knife system to being arranged on the bar is changed, and wherein, described bar knife system is positioned at the head of the mast; Coupled three-phase overhead transmission line and support cross-arm thereof are positioned on the electric pole of bar knife system below, it is characterized in that:
A, step on the bar operating personnel and use insulating bar that the lightning arrester of three-phase overhead transmission line is out of service;
B, step on the bar operating personnel on the electric pole that supports below the cross-arm position, move towards into 90 degree angle directions with the three-phase overhead transmission line, the first cross-brace cantilever is set, its said first cross-brace cantilever is provided with one apart from an end of electric pole far-end and fixedly turns to base;
C, step on the bar operating personnel horizontal cantilever support above; The second cross-brace cantilever is set in the same way; And the second cross-brace cantilever apart from electric pole near-end one side and the first cross-brace cantilever apart between electric pole far-end one side, be provided for strengthening the diagonal brace of the first cross-brace cantilever;
D, step on the bar operating personnel wire tension-resistant insulator dielectric cover is installed, carry out insulation and cover measure;
E, to step on the bar operating personnel be platform with the first cross-brace cantilever, uses insulating tool to carry out side phase plug-in strip both sides pile crown lead-in wire dismounting work within the three-phase overhead transmission line, and the pile crown lead-in wire dropped to the temporary fixed place of phase conductor fix;
F, to step on the bar operating personnel be platform with first, second cross-brace cantilever; Use insulating tool to remove respectively among the three-phase overhead transmission line mutually and outside plug-in strip both sides pile crown lead-in wire mutually, and each pile crown gone between to drop to the temporary fixed place of phase conductor fix;
G, step on the bar operating personnel and on first, second cross-brace cantilever, install vertical supporting bar,, install and turn to type gin pole and insulation arm assembly thereof on the top of vertical supporting bar;
H, Ground Operation personnel install the ground hoisting equipment;
I, step on bar operating personnel and Ground Operation personnel and cooperate, at insulation arm assembly, turn between type gin pole and the ground hoisting equipment lifting rope is installed;
J, step on the bar operating personnel and climb up the second cross-brace cantilever, turn to insulation arm to the bar knife system top correct position of type gin pole, lifting rope is fixed, is connected with bar knife system to be replaced;
K, Ground Operation personnel hang tight to tightening stress through the lifting rope that the ground hoisting equipment will be connected with the bar knife system slightly;
L, step on the fixed screw between bar operating personnel removal rod knife system and the bar knife support,
M, Ground Operation personnel and Deng bar operating personnel cooperate; Through the ground hoisting equipment bar knife system to be replaced is sling; Step on the insulation arm that the bar operating personnel turns to the type gin pole; Bar knife system to be replaced is moved to outside the area of space of three-phase overhead transmission line place, then it is reduced to ground;
N, Ground Operation personnel will be cemented in the terminal bar knife system to be replaced of lifting rope and pull down, and new bar knife system is cemented in the lifting rope end;
O, Ground Operation personnel and Deng bar operating personnel cooperate, and will new bar knife system slinging through the ground hoisting equipment, position to be installed belongs to the plane to the bar;
P, step on the insulation arm that the bar operating personnel turns to the type gin pole, new bar knife system is moved to position to be installed on the bar;
Q, step on bar operating personnel and Ground Operation personnel and cooperate,, new bar knife system is slowly moved on the bar cutter fixed support through loosening lifting rope;
R, step on the fixed screw between bar operating personnel anchorage bar knife system and the bar knife support; Installed and fixed new bar knife system; To the new bar knife system in place debugging of drawing back, close, the contact of inspection plug-in strip meets the requirements, and then the bar knife system is placed unzipped positions;
S, step on the bar operating personnel and retreat on first, second cross-brace cantilever, order begins to recover being connected between side phase outside the three-phase overhead transmission line, middle phase and inboard phase both sides pile crown lead-in wire and the bar knife system respectively successively;
T, step on the bar operating personnel and cooperate to remove and turn to each parts of type gin pole and associated tracks strain insulator insulating cover, measure is covered in the insulation of removing on each phase circuit;
U, step on the bar operating personnel and use insulating bar that the lightning arrester of three-phase overhead transmission line is put into operation;
V, step on the bar operating personnel and will insulate after operative employee's utensil winches to ground, remove successively and turn to type gin pole and insulation arm assembly, the second cross-brace cantilever and the first cross-brace cantilever, remove on the bar behind the operation legacy, return ground;
W, Ground Operation personnel remove the ground hoisting equipment;
X, operating personnel put the Ground Operation scene in order, check power tool, report operation to scheduling on duty and finish, and withdraw operation field.
2. the method for changing the bar knife system according to the described earth potential live of claim 1; It is characterized in that described insulation arm assembly is positioned at the upper end that turns to the type gin pole; Vertical height and position of described insulation arm assembly is higher than the plan position approach that bar knife system to be replaced belongs to.
3. the method for changing the bar knife system according to the described earth potential live of claim 1; It is characterized in that described inboard is meant mutually in the three-phase overhead transmission line that near a phase overhead transmission line of stepping on the bar operating personnel, the described outside is meant in the three-phase overhead transmission line away from a phase overhead transmission line of stepping on the bar operating personnel mutually.
4. according to the method for the described earth potential live transposing of claim 1 bar knife system, it is characterized in that described method, adopt the earth potential working method; By rotation turn to the type gin pole with can 360 the insulation lifting arm of degree rotation, under the prerequisite that guarantees the live line working minimum safe distance, realize charged transposing bar upper boom knife system; To reduce interruption duration; Improve service work efficient, improve the effective transmission of electricity time and the online power supply rate of supply line, improve the fail safe and the reliability of operation of power networks.
CN201110375221.3A 2011-11-22 2011-11-22 Ground potential electrified bar cutter device changing method Active CN102510029B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106463940A (en) * 2014-01-20 2017-02-22 曙光电子通讯工程(株) Auxiliary device for power distribution facility live-line working, and power distribution facility live-line working method using same
CN109586206A (en) * 2018-11-27 2019-04-05 国网福建省电力有限公司 A kind of zigbee wireless remote control network of livewire work
CN114172070B (en) * 2021-09-30 2023-08-11 国网山东省电力公司潍坊供电公司 Vertical pole removing device for distribution network overhead line

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CN200997499Y (en) * 2006-09-05 2007-12-26 上海电力带电作业技术开发有限公司 Insulated platform apparatus for 360degree rotary electric operation
CN201215876Y (en) * 2008-06-12 2009-04-01 宁夏电力公司吴忠供电局 Assistant hanging rack for mounting top rack of electric pole
CN101557087A (en) * 2009-01-20 2009-10-14 重庆市电力公司江北供电局 High-voltage live working insulating hanging pole

Cited By (10)

* Cited by examiner, † Cited by third party
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CN106463940A (en) * 2014-01-20 2017-02-22 曙光电子通讯工程(株) Auxiliary device for power distribution facility live-line working, and power distribution facility live-line working method using same
CN106463941A (en) * 2014-01-20 2017-02-22 曙光电子通讯工程(株) Power distribution facility live-line working method
CN106463939A (en) * 2014-01-20 2017-02-22 曙光电子通讯工程(株) Auxiliary device for power distribution facility live-line working, and power distribution facility live-line working method using same
CN106463938A (en) * 2014-01-20 2017-02-22 曙光电子通讯工程(株) Power distribution facility live-line working method
CN106463941B (en) * 2014-01-20 2018-09-07 曙光电子通讯工程(株) Controller switching equipment livewire work method
CN106463938B (en) * 2014-01-20 2018-09-07 曙光电子通讯工程(株) Controller switching equipment livewire work method
CN106463939B (en) * 2014-01-20 2018-09-11 曙光电子通讯工程(株) Controller switching equipment livewire work auxiliary device and the controller switching equipment livewire work method for utilizing this device
CN106463940B (en) * 2014-01-20 2018-09-11 曙光电子通讯工程(株) Controller switching equipment livewire work auxiliary device and the method for carrying out controller switching equipment livewire work using it
CN109586206A (en) * 2018-11-27 2019-04-05 国网福建省电力有限公司 A kind of zigbee wireless remote control network of livewire work
CN114172070B (en) * 2021-09-30 2023-08-11 国网山东省电力公司潍坊供电公司 Vertical pole removing device for distribution network overhead line

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