Electrification enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods
Technical field
The present invention relates to livewire work technical fields, enter 750 kilovolts of quadri-circuit lines on the same towers in particular to a kind of electrification
Road equipotential method.
Background technique
Northwest China area 750kV transmission system is quickly grown, and networking, planning construction has been done step-by-step in line construction
A plurality of route.And the important passway for transmitting electricity Hexi Corridor Region current power transmission route land occupation in the Northwest is especially nervous, multiple-loop line
Multi circuit transmission lines are set up in same shaft tower by multi-line power transmission technology realizes large capacity and few land occupation, and area has had more throughout our country
Year application practice, operating condition are good.On the basis of existing 750kV single loop and multiple-circuit on same tower design and operating experience,
750kV has become the specific direction of China's electric utility development with four circuit technology of transmission of electricity of tower.
In general, the operating maintenance work of power grid is for guaranteeing that it is very heavy that the safe and stable of power grid, reliability service have
The meaning wanted.The important technical that livewire work is overhauled as operation of power networks, to ensure extra-high voltage grid it is safe and stable, can
It is of great significance by operation.Tetra- return lead wiring on the same tower of 750kV is as a kind of novel line architecture mode, pyramidal structure
Pattern, line parameter circuit value and wire arrangements mode 750kV multiple-circuit on same tower different from the past, the electricity of typical livewire work operating condition
The phenomenon that pole structural shape changes, also, there are same layer cross-arm two phase conductors of arrangement, therefore existing 750kV is double with tower
Loop line road equipotential method can not be suitable for tetra- return lead of 750kV, equipotential staff can not safely enter conducting wire into
Row takes operation to.
Summary of the invention
In consideration of it, the invention proposes a kind of electrifications to enter 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, it is intended to solve
Conducting wire safely can not be entered for 750 kilovolts of quadri-circuit lines on the same tower road equipotential staff in the prior art and carry out livewire work
The problem of.
The invention proposes a kind of electrifications to enter 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, and this method includes as follows
Step: installation steps are determined to operation phase conductor, and install delivery vehicle on hanging the cross-arm to operation phase conductor;Into
Step, equipotential staff enter delivery vehicle, and according to pre-set velocity and preset path to mobile at operation phase conductor;
Job step, distance after at the first pre-determined distance of operation phase conductor carry out equipotential operation after enter back into operation phase conductor into
Row operation.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, and installation steps are further wrapped
Include: first determines sub-step, determines the position to operation phase conductor;Second determines sub-step, according to the position to operation phase conductor
It sets, the hitch point of delivery vehicle is determined on hanging the cross-arm to operation phase conductor;Delivery vehicle sub-step is installed, in hitch point
Place's installation delivery vehicle.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, and second determines sub-step
In, the hitch point of delivery vehicle is located to the surface of operation phase conductor or has second with the surface to operation phase conductor
At pre-determined distance, so that delivery vehicle is according to preset path to mobile at operation phase conductor.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, installs delivery vehicle sub-step
In rapid, if being arranged to operation phase conductor close to tower body, delivery vehicle includes: the first rope, the second rope and hanging basket;First rope
One end be connected with hitch point, the other end of the first rope is connected with hanging basket, and one end of the second rope is connected with hanging basket,
The other end of second rope is free end;If being arranged to operation phase conductor far from tower body, delivery vehicle includes: fixed pulley, third
Rope and hanging basket;Fixed pulley is installed at hitch point, third rope is set around fixed pulley and one end is connected with hanging basket, the other end
For free end.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, if remote to operation phase conductor
It is arranged from tower body, hanging basket is additionally provided with auxiliary ropes.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, enters step further packet
Include: first enters sub-step, and equipotential staff enters delivery vehicle by the first predeterminated position;Second enters sub-step, ground
Current potential staff controls delivery vehicle in the second predetermined position so that delivery vehicle according to pre-set velocity and preset path to
To mobile at operation phase conductor.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, and first enters sub-step
In, if being arranged to operation phase conductor close to tower body, equipotential staff enters delivery work from the first predetermined position of tower body
Tool;If being arranged to operation phase conductor far from tower body, equipotential staff is default from first to operation phase conductor lower section cross-arm
Enter delivery vehicle at position;First predeterminated position should make delivery vehicle according to preset path to move at operation phase conductor
It is dynamic.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, and second enters sub-step
In, preset path be so that the sum of S1 and S2 within a preset range;Wherein, S2 is for delivery vehicle and between operation phase conductor
Distance;If being arranged to operation phase conductor close to tower body, S1 is delivery vehicle and the vertical range at tower body;If to operation
Phase conductor is arranged far from tower body, S1 be delivery vehicle on to operation phase conductor lower section cross-arm at cant beam it is vertical away from
From.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, preset range be greater than etc.
In 5.5m.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, preset range be greater than etc.
In 5.5m and it is less than or equal to 7.0m.
Further, above-mentioned electrification enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, in job step, waits electricity
Position staff is in distance to be hooked to operation phase conductor with electric potential transferring stick to realize at the first pre-determined distance of operation phase conductor
Equipotential.
In the present invention, according to determining to operation phase conductor, equipotential staff takes delivery vehicle with pre-set velocity
Enter with preset path and carry out operation to operation phase conductor, then equipotential staff can safely and steadly enter to operation
Phase conductor is effectively protected equipotential staff, solves in the prior art for 750 kilovolts of quadri-circuit lines on the same tower road equipotentials
Staff can not safely enter the problem of conducting wire carries out livewire work, ensure that 750 kilovolts of quadri-circuit lines on the same tower road electrifications are made
Industry is safely carried out, and the security and stability of supergrid is improved.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the flow chart that electrification provided in an embodiment of the present invention enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods;
Fig. 2 is that electrification provided in an embodiment of the present invention enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, installation step
Rapid flow chart;
Fig. 3 is that electrification provided in an embodiment of the present invention enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, into step
Rapid flow chart;
Fig. 4 is that electrification provided in an embodiment of the present invention enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, power transmission tower
Structural schematic diagram;
Fig. 5 is that electrification provided in an embodiment of the present invention enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, close to tower
Body setting to the operation chart at operation phase conductor;
Fig. 6 is that electrification provided in an embodiment of the present invention enters in 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods, far from tower
Body setting to the operation chart at operation phase conductor.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and
Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig. 1, Fig. 1 is that electrification provided in an embodiment of the present invention enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods
Flow chart.Electrification enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods and includes the following steps:
Installation steps S1 is determined to operation phase conductor, and install delivery vehicle on hanging the cross-arm to operation phase conductor.
Specifically, referring to fig. 4 to Fig. 6, the position to operation phase conductor 3 is shown in Fig. 4, since power transmission tower is symmetrical
Setting is mutually led on the right side of power transmission tower to operation so only showing the deployment scenarios on the left of power transmission tower to operation phase conductor in Fig. 4
The deployment scenarios of line are identical to the deployment scenarios of operation phase conductor 3 as left side, also, enter equal electricity of the left side to operation phase conductor
Position method is identical to the equipotential method of operation phase conductor with entrance right side.It in the present embodiment, is on the left of power transmission tower
To what is be introduced for operation phase conductor.
Referring to fig. 4, in the deployment scenarios on the left of power transmission tower to operation phase conductor, at 1,2,4 and 6 positions of tower body
Electrification access method is different with the electrification access method at 3 and 5 positions far from tower body, needs to be introduced respectively, because
This is needed first to determine to operation phase conductor 3, and determines the position to operation phase conductor 3.
It referring to fig. 4, to operation phase conductor 3 is connected on the cross-arm 1 of power transmission tower by V-type insulator chain.Deliver work
Tool is insulation, and delivery vehicle is set to suspension on the cross-arm 1 of operation phase conductor 3, and delivery vehicle is by equipotential staff
It is transported to at operation phase conductor 3, so that equipotential staff enters to carry out livewire work at operation phase conductor 3.
S2 is entered step, equipotential staff enters delivery vehicle, and according to pre-set velocity and preset path to wait make
It is mobile at industry phase conductor.
Specifically, then a full set of shielding clothing of equipotential live line work personnel needs wearing, which is climbed from ground to power transmission tower, waits electricity
Position staff takes delivery vehicle, and speed and the path of delivery vehicle are controlled under the cooperation of ground potential staff, so that
Delivery vehicle is according to pre-set velocity and preset path to mobile at operation phase conductor 3.Ground potential staff delivers in control
When tool, should delivery vehicle at the uniform velocity be moved, avoid delivery vehicle movement speed fluctuations larger so that delivery vehicle is trembled
It is dynamic obvious, to reduce the impact load to delivery vehicle, improve safety.
Job step S3 is entered back into after carrying out equipotential operation at the first pre-determined distance of operation phase conductor wait make in distance
Industry phase conductor carries out operation.
Specifically, equipotential staff is in distance to be hooked at the first pre-determined distance of operation phase conductor with electric potential transferring stick
To operation phase conductor to realize equipotential, equipotential staff enters and charges to operation phase conductor after realizing equipotential
Operation.
When operation, ground potential staff stops in distance to control delivery vehicle at the first pre-determined distance of operation phase conductor
Only, equipotential staff is hooked to operation phase conductor with electric potential transferring stick to realize equipotential.It is electric after realizing equipotential
Position staff continues to control delivery vehicle into operation phase conductor 3, and equipotential staff carries out livewire work.
When it is implemented, the first pre-determined distance can determine that the present embodiment does not do any limit to this according to the actual situation
System.In the present embodiment, the first pre-determined distance be distance to operation phase conductor 1m at.
As can be seen that, according to determining to operation phase conductor, equipotential staff takes delivery vehicle in the present embodiment
Entered with pre-set velocity and preset path and carry out operation to operation phase conductor, then equipotential staff can be safely and steadly
Into to operation phase conductor, it is effectively protected equipotential staff, solves and 750 kilovolts is returned with tower four in the prior art
Route equipotential staff can not safely enter the problem of conducting wire carries out livewire work, ensure that 750 kilovolts are returned with tower four
Line live-line work is safely carried out, and the security and stability of supergrid is improved.
Referring to fig. 2, Fig. 2 is that electrification provided in an embodiment of the present invention enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods
In, the flow chart of installation steps.As shown, installation steps S1 further comprises:
First determines sub-step S11, determines the position to operation phase conductor.
Specifically, referring to fig. 4, it determines and is at tower body 2 to operation phase conductor, i.e. in Fig. 4 at 1,2,4 and 6 positions,
Or at separate tower body 2, i.e. in Fig. 4 at 3 and 5 positions.
Second determines sub-step S12, according to the position to operation phase conductor, on hanging the cross-arm to operation phase conductor really
Determine the hitch point of delivery vehicle.
Specifically, it is either at tower body 2 to operation phase conductor 3 or far from tower body 2, delivery vehicle hangs
Hanging point (the A point in Fig. 5 and Fig. 6) is the surface positioned to operation phase conductor 3, or positioned at to operation phase conductor 3
Surface has at the second pre-determined distance, and the position of hitch point should make delivery vehicle according to preset path to operation phase conductor
It is mobile at 3.
When it is implemented, if being at tower body 2 to operation phase conductor 3, i.e. in Fig. 4 at 1,2,4 and 6 positions, suspension
Point A point is somebody's turn to do positioned at the surface to operation phase conductor 3 or a certain position at surface and the separate tower body 2 of deviation
Position, which should meet, enables to delivery vehicle according to preset path to mobile at operation phase conductor 3.Preferably, if wait make
Industry phase conductor 3 is in far from tower body 2, i.e. in Fig. 4 at 3 and 5 positions, hitch point A point be located to operation phase conductor 3 just on
Side.
When it is implemented, the second pre-determined distance can determine that the present embodiment does not make any limit to this according to the actual situation
System.
Delivery vehicle sub-step S13 is installed, delivery vehicle is installed at hitch point.
Specifically, if being arranged to operation phase conductor 3 close to tower body 2, i.e. in Fig. 4 at 1,2,4 and 6 positions.Referring to Fig. 5, fortune
Load tool includes: the first rope 4, the second rope 5 and hanging basket 7, wherein and one end of the first rope 4 is connected with hitch point, and first
The other end of rope 4 is connected with hanging basket 7, and one end of the second rope 5 is connected with hanging basket 7, and the other end of the second rope 5 is certainly
By holding.Specifically, the first rope 4 has preset length, which should enable hanging basket 7 to be transported to equipotential staff
To carry out livewire work at operation phase conductor 3, the present embodiment does not do any restrictions to this.The length of second rope 5 can be with
It determines according to the actual situation, as long as can guarantee to be transported to equipotential staff to charge at operation phase conductor 3
Operation, the present embodiment do not do any restrictions to this.
Hanging basket 7 is used to take for equipotential staff, and ground potential staff pulls the free end of the second rope 5 to control
The position of hanging basket 7 processed and the speed of service, so that hanging basket 7 is with pre-set velocity and preset path to move at operation phase conductor 3
It is dynamic.Wherein, the first rope 4, the second rope 5 and hanging basket 7 are made of isolation material.
If being arranged to operation phase conductor 3 far from tower body 2, i.e. in Fig. 4 at 3 and 5 positions.Referring to Fig. 6, delivery vehicle includes:
Fixed pulley, third rope 6 and hanging basket 7.At hitch point install fixed pulley, third rope 6 be set around fixed pulley and one end with hang
Basket 7 is connected, and the other end is free end.
, ground potential staff pulls the free end of third rope 6 to control position and the speed of service of hanging basket 7, thus
So that hanging basket 7 is with pre-set velocity and preset path to mobile at operation phase conductor 3.Wherein, third rope 6 is isolation material system
At.
If being arranged to operation phase conductor 3 far from tower body 2, i.e. in Fig. 4 at 3 and 5 positions, in order to avoid hanging basket 7 is to wait make
Occurs the case where rotation, shake when mobile at industry phase conductor 3, then hanging basket 7 is additionally provided with auxiliary ropes 8, i.e. the of auxiliary ropes 8
One end is connected with hanging basket 7, and the second end of auxiliary ropes 8 is free end.Ground potential staff pulls the second of auxiliary ropes 8
End, to control the swing rotary of hanging basket 7.In practical operation, auxiliary ropes 8 do not stress, then ground potential staff pulls third
Rope 6 controls the movement of hanging basket 7.When being provided with auxiliary ropes 8, ground potential staff is two, two ground potential works
Make personnel and controls third rope 6 and auxiliary ropes 8 respectively.Wherein, auxiliary ropes 8 are made of isolation material.
As can be seen that being determined in suspension according to the position to operation phase conductor determined to operation phase in the present embodiment
The position of hitch point on the cross-arm of conducting wire ensure that delivery vehicle according to preset path so that the position of hitch point determines accurately
To mobile at operation phase conductor, also, the setting of delivery vehicle is taken convenient for equipotential staff, is also convenient for ground potential work
Make the control of personnel.
Referring to Fig. 3, Fig. 3 is that electrification provided in an embodiment of the present invention enters 750 kilovolts of quadri-circuit lines on the same tower road equipotential methods
In, the flow chart that enters step.As shown, entering step S2 and further comprising:
First enters sub-step S21, and equipotential staff enters delivery vehicle by the first predeterminated position.
Specifically, if being arranged to operation phase conductor 3 close to tower body 2, i.e. in Fig. 4 at 1,2,4 and 6 positions, referring to Fig. 5, etc.
Current potential staff enters delivery vehicle from the first predetermined position of tower body 2;If being arranged to operation phase conductor 3 far from tower body 2,
That is in Fig. 4 at 3 and 5 positions, referring to Fig. 6, equipotential staff is from the first default position to 3 lower section cross-arm 1 of operation phase conductor
It sets place and enters delivery vehicle.First predeterminated position should make delivery vehicle according to preset path to mobile at operation phase conductor 3.
Second enters sub-step S22, and ground potential staff controls delivery vehicle in the second predetermined position, so that delivery
Tool is according to pre-set velocity and preset path to mobile at operation phase conductor.
Specifically, referring to Fig. 5, if being arranged to operation phase conductor 3 close to tower body 2, i.e. in Fig. 4 at 1,2,4 and 6 positions, ground
Current potential staff controls delivery vehicle at the second predeterminated position (B point shown in fig. 5) of tower body 2, and according to pre-set velocity
Discharge delivery vehicle.That is, ground potential staff discharges the second rope 5 to control hanging basket 7 to mobile at operation phase conductor 3.
Referring to Fig. 6, if being arranged to operation phase conductor 3 far from tower body 2, i.e. in Fig. 4 at 3 and 5 positions, ground potential staff
Second predetermined position controls delivery vehicle on the lower section cross-arm 1 to operation phase conductor 3, and is promoted and delivered according to pre-set velocity
Tool.That is, ground potential staff pulls third rope 6 to promote hanging basket 7 to mobile at operation phase conductor 3.
When it is implemented, the second predeterminated position can determine according to the actual situation, as long as making delivery vehicle according to pre-
If path is to mobile at operation phase conductor, the present embodiment is not intended to be limited in any this.
The pre-set velocity of delivery vehicle should remain a constant speed, and avoid velocity fluctuation from changing so that delivery vehicle shake is obvious, with
The impact load to delivery vehicle is reduced, safety is improved.When it is implemented, pre-set velocity can determine according to the actual situation,
The present embodiment is not intended to be limited in any this.In the present embodiment, pre-set velocity 1m/s.
Preset path be so that the sum of S1 and S2 within a preset range;Wherein, S2 is for delivery vehicle and to operation phase conductor
The distance between;If being arranged to operation phase conductor close to tower body, S1 is delivery vehicle and the vertical range at tower body;If
It is arranged to operation phase conductor far from tower body, S1 is delivery vehicle and the hanging down at cant beam on to operation phase conductor lower section cross-arm
Straight distance.
Specifically, delivery vehicle is constantly mobile, still, still should ensure that the sum of S1 and S2 within a preset range.Wherein,
If being arranged to operation phase conductor 3 close to tower body 2, i.e. in Fig. 4 at 1,2,4 and 6 positions, delivery vehicle is on the move and near tower
Vertical range at body 2 is S1.If being arranged to operation phase conductor 3 far from tower body 2, i.e. in Fig. 4 at 3 and 5 positions, mutually led to operation
Cant beam 9 is provided on the cross-arm 1 of 3 lower section of line, the vertical range between cant beam 9 is S1 to delivery vehicle on the move.
Preferably, preset range is more than or equal to 5.5m, to guarantee to discharge within the scope of this.More preferably, it presets
Range is more than or equal to 5.5m and to be less than or equal to 7.0m, and ensure that will not discharge, and be also convenient for ground potential staff to delivery work
The control of tool.
As can be seen that entering step in S2 by limiting preset path in the present embodiment, capable of effectively guaranteeing equipotential
Enter to operation phase conductor to worker safety, also, equipotential staff enters position and the ground potential of delivery vehicle
The position of staff is for guaranteeing that delivery vehicle, to movement at operation phase conductor, guarantees equipotential according to preset path
The personal safety of staff.
When it is implemented, determining and adjusting the position of delivery vehicle hitch point within a preset range according to the sum of S1 and S2
It sets, equipotential staff enters the first predeterminated position of delivery vehicle, ground from tower body or to cross-arm below operation phase conductor
Current potential staff is in tower body or the second predeterminated position below to operation phase conductor on cross-arm, to guarantee that delivery vehicle is pressed
According to preset path to mobile at operation phase conductor.
In conclusion, according to determining to operation phase conductor, equipotential staff takes delivery vehicle in the present embodiment
Entered with pre-set velocity and preset path and carry out operation to operation phase conductor, then equipotential staff can be safely and steadly
Into to operation phase conductor, it is effectively protected equipotential staff, ensure that 750 kilovolts of quadri-circuit lines on the same tower road livewire work peaces
Carry out entirely, improves the security and stability of supergrid.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.