CN103474909B - Drainage thread supports the method for expansion live-line replacing multiloop strain insulator string - Google Patents
Drainage thread supports the method for expansion live-line replacing multiloop strain insulator string Download PDFInfo
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- CN103474909B CN103474909B CN201310439689.3A CN201310439689A CN103474909B CN 103474909 B CN103474909 B CN 103474909B CN 201310439689 A CN201310439689 A CN 201310439689A CN 103474909 B CN103474909 B CN 103474909B
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Abstract
The invention discloses a kind of method that drainage thread supports expansion live-line replacing multiloop strain insulator string, in the method operating process, without having a power failure, upper phase drainage thread with operation cross-arm spacing is less, be unsatisfactory for normal operation space requirement in the case of, operating personnel can effectively arrive multiloop strain rod tower cross arm end and treat that operation edge place carries out detection or the replacing of multiple-loop line road insulator, easy and simple to handle, safe and reliable, working performance is high.Can be widely applied to earth potential live replacing straight line bunch of insulator operation, in the work of the electric operating such as earth potential live replacing linear string monolithic insulator, earth potential live detection of straight lines zero resistance insulator, earth potential live replacing drainage thread transfusion bottle.
Description
Technical field
The present invention relates to change multiloop linear insulator technical field, particularly relate to a kind of drainage thread support expansion live-line replacing many
The method of loop strain insulator string.
Background technology
At present, in Regulation, staff when multiple-loop line road strain rod tower carries out isolator detecting or charged for replacement,
It is frequently encountered by phase drainage thread less with operation cross-arm spacing, is unsatisfactory for the situation of normal operation space requirement, it is impossible to by work people
Member directly carries out multiple-loop line road strain rod tower and carries out isolator detecting or charged for replacement, and its effective operation space does not allow operation people
Member enters, traditional detection or the method for replacing insulator under electrified, generally uses insulating bar remotely to operate or do circuit and has a power failure
Measure, insulating bar remotely operates, and wastes time and energy, inefficiency；Power down is taked then to cause large area electrical network to break
Electricity, drastically influence power supply reliability and the power-on time of electrical network.
Summary of the invention
It is an object of the invention to aim to provide a kind of method that drainage thread supports expansion live-line replacing multiloop strain insulator string, should
In method operating process, it is not necessary to have a power failure, at upper phase drainage thread with operation cross-arm spacing is less, be unsatisfactory for normal operation space requirement
In the case of, operating personnel can effectively arrive multiloop strain rod tower cross arm end, and to treat that operation edge place carries out multiple-loop line road exhausted
The detection of edge or replacing, easy and simple to handle, safe and reliable, working performance is high.
Be the technical scheme is that a kind of drainage thread support expansion live-line replacing multiloop strain insulator is exhausted by realizing the purpose of the present invention
The method of edge substring, comprises the steps:
1) application inactive line reclosing, the verification dual title of circuit and bar number；
2) division of labor and lines of specialities, safety measure and points for attention are clearly made；
3) staff uses the insulation resistance of megameter detection insulating tool, checks that bearing tool is the most intact flexibly, and screening clothing is
No intact；
4) at earth potential electrician, isoelectric level electrician Deng Ta to cross-arm, it is, hangs up properly seat belt, insulation transmission rope is suspended on suitable position
Putting, earth potential electrician coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is secured in place, logical
Cross drainage thread and support expansion device by the drainage thread above job position to outer support expansion；
5) earth potential electrician coordinates in special isolation pivoted arm ladder system to tower and be fixed on tower body appropriate location, isoelectric level with ground electrician
Electrician fixes two anti-ropes, and ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, isoelectric level electrician
Enter highfield；
6) the front card of fixture is passed to isoelectric level electrician with insulating bar by earth potential electrician, and front card is connected in horizontal stroke by isoelectric level electrician
In load, rear card is placed on cross-arm by earth potential electrician, adjusts the adjusting screw of fixture simultaneously；
7) old insulator chain is removed:
A) on tower, earth potential electrician, isoelectric level electrician coordinate mounting bracket bottle stand；
B) on isoelectric level electrician and Ta, the locking pin at two ends is taken out by earth potential electrician respectively；
C) earth potential electrician tightens up leading screw, makes fixture stress, isoelectric level electrician by insulator chain conductor wire end disengage, earth potential electrician with
Isoelectric level electrician coordinates the disengagement of insulator chain cross-arm-end；
8) earth potential electrician and ground electrician fit through insulation transmission rope old insulator chain is put down, follow with stylish insulator chain
To operating position；
9) new insulator chain is installed: the installation procedure of new insulator chain is contrary to the above；
10) installing two ends locking pin, earth potential electrician unclamps leading screw, checks insulator chain stressing conditions, it is ensured that safe and reliable；
11) isopotential electrical coordinates dismounting Work tool with earth potential electrician, prepares to exit highfield；
12), after isopotential electrical work area is steady, highfield is left in signal, and ground electrician controls special isolation pivoted arm ladder and pulls it toward at cross-arm,
Isoelectric level electrician is rapidly separated, steadily to cross-arm；
13) earth potential electrician removes on tower power tool and is transferred to ground by insulation transmission rope, and drainage thread is recovered shape to operation
State；
14) after on tower, electrician checks that on tower, nothing leaves over instrument, the steady lower tower of back of the body insulation transmission rope；
15) finisher's utensil, site clearing, recover circuit re-switching.
In described step 4, earth potential electrician uses drainage thread to support expansion device by the drainage thread above job position to outer support expansion
After, above job position, cross-arm corresponding position hangs the early warning type spacing umbrella of insulation.
When the insulator chain changed is dish type porcelain insulator string, after described step 4, ground electrician assembles surveying zero bar
Passing to electrician on tower with insulation transmission rope afterwards, on tower, electrician detects the zero resistance insulator quantity of insulator chain to be changed.
Drainage thread is fixed and to outer support by the present invention by using drainage thread to support expansion device, has effectively ensured that drainage thread supports and has expanded
Away from stability, add the distance between phase drainage thread and operation cross-arm, ensured that earth potential working personnel make at lower phase cross-arm
Can there be enough working spaces during industry, thus have effectively achieved earth potential working personnel and arrive multiloop strain rod tower cross-arm-end
Portion treat operation edge place carry out multiple-loop line road insulator detection or change operation, closely operation, easy and simple to handle, safety can
Leaning on, working performance is high, and operation quality is secure.
Earth potential electrician of the present invention coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is secured in place,
Effectively support expansion device by the drainage thread above job position to outer support expansion by drainage thread, thus ensure earth potential
Operating personnel can have enough working spaces when lower phase cross-arm operation；Then earth potential electrician coordinates will insulate with ground electrician
Pivoted arm ladder is fixed on tower body appropriate location, installs fixing reliable, and is easy to the rotation of pivoted arm ladder, enables isoelectric level electrician to enter safely
Enter or depart from highfield；Earth potential electrician and isoelectric level electrician coordinate and utilize fixture to be connected with cross-arm by wire, it is achieved to wire and
The regulation of cross-arm distance, in order to dismantle and install insulator chain；Then earth potential electrician and isoelectric level electrician's coordinated complete peace
Fill bottle-holding rack, taking-up insulator chain two ends locking pin, tighten up leading screw disengagement insulator chain conductor wire end, disengagement insulator chain cross-arm-end
Deng a series of activities, it is achieved the dismounting to old insulator chain；Then earth potential electrician coordinates old insulator chain with ground electrician
Reach ground, reach operating position with stylish insulator chain；According still further to the flow process contrary with removing old insulator chain, new insulation is installed
Substring, and unclamp leading screw inspection insulator chain stressing conditions, it is ensured that safe and reliable；Thus have effectively achieved new and old insulator chain
Replacing, earth potential electrician and isoelectric level electrician closely operate, easy to operate, working performance is high, and reliable in quality has guarantor
Barrier.Isoelectric level electrician, by insulation pivoted arm ladder, is rapidly separated highfield under the control of ground electrician, the most mobile to cross-arm,
Avoid isoelectric level electrician to produce phenomenon of arc discharge when departing from highfield, ensure operating personnel and the safety of grid equipment；Removing tower
Upper power tool after being transferred to ground, puts down drainage thread, recovers state to operation, make power system restoration to normal table shape
State.
The drainage thread of the present invention supports the method for expansion live-line replacing multiloop strain insulator string, can be widely applied to earth potential band
Charged renewal straight line bunch of insulator operation, earth potential live replacing linear string monolithic insulator, earth potential live detection of straight lines null value
In the electric operating work such as insulator, earth potential live replacing drainage thread transfusion bottle, support expansion measure by drainage thread, effectively
Add the distance between phase drainage thread and operation cross-arm, ensured that earth potential working personnel can have foot when lower phase cross-arm operation
Enough working spaces, thus have effectively achieved earth potential working personnel and arrive multiloop strain rod tower cross arm end and treat operation edge
Place carries out the detection of multiple-loop line road insulator or changes operation, closely operation, easy and simple to handle, operating flexibility degree height, effectively
Ground improves working performance height, multi-mass work guarantee, makes upkeep operation personnel have the more job task of more time-triggered protocol, carries
The high security maintenance dynamics to operation of power networks, ensures electrical network and the safe and stable operation of electrical equipment.
Detailed description of the invention
Drainage thread of the present invention supports the method for expansion live-line replacing multiloop strain insulator string, employing following steps:
Step 1: application inactive line reclosing, the verification dual title of circuit and bar number；
Work director goes into operation to dispatching of power netwoks person's application, and content is: this artificial work exists day by day director XXX, X X month X
Strain insulator string operation, this job request inactive line reclosing device is changed, if meeting on XX kV XX multi-loop line
Line tripping, without contact, must not send by force；Obtain scheduling grant, the verification dual title of circuit and bar number；Avoid circuit to go out
When now tripping, dispatcher's strong power transmission in the case of unwitting causes grid equipment to damage or the generation of human casualty accident；Logical
Cross the dual title of verification circuit and bar number, it is to avoid fault rod climbing, change the generation of insulation by mistake, stop unnecessary human and material resources, wealth
Power and waste of time, improve working performance.
Step 2: clearly make division of labor and lines of specialities, safety measure and points for attention；
Job crew member line up, and work ticket, the task that hands over work to one's successor, safety measure and technical measures are read out in work director scene；Look into
See that operating personnel's mental status, dressing situation and Work tool are the most intact complete；Explain dangerous spot and preventive measure, specify operation
The division of labor and safety measure and points for attention；Safety first, ensures that operating personnel has a good mental status, and the moment keeps
Watchful, specify safety measure and points for attention, ensure the safety in operation process to greatest extent.
Step 3: staff uses the insulation resistance of megameter detection insulating tool, checks that bearing tool is the most intact flexibly, shielding
Take the most intact；
Ensure that power tool is safe and reliable, flexible, it is to avoid the fortuitous event caused due to instrument inconvenience in operating process occurs.
Step 4: at earth potential electrician, isoelectric level electrician Deng Ta to cross-arm, be, hang up properly seat belt, is suspended on suitable by insulation transmission rope
Working as position, earth potential electrician coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is fixed on suitable position
Putting, earth potential electrician supports expansion device by the drainage thread above job position to outer support expansion and in operation position by drainage thread
Put cross-arm corresponding position, top and hang the early warning type spacing umbrella of insulation；
When the insulator chain changed is dish type porcelain insulator string, after described step 4, ground electrician assembles surveying zero bar
Passing to electrician on tower with insulation transmission rope afterwards, on tower, electrician detects the zero resistance insulator quantity of insulator chain to be changed；
Described drainage thread supports expansion device and includes that supporting mechanism and fixed mechanism, described supporting mechanism can use applicant's earlier application
Livewire work drain supports operation instrument, and its Application No. 201120419582.9, described fixed mechanism can use applicant formerly
The multiloop universal fixing device of livewire work support bar of application, its Application No. 201120419578.2.Carry out drainage thread support
During expansion, the connecting plate first rotating livewire work drain support operation instrument makes gear fork increase with the gap at hook position, and ground is electric
Drainage thread is inserted in hook by position electrician by action bars, and stumbling due to hook can not rotate on drainage thread, passes through rotation process
Bar, gear fork is gradually reduced with the gap in hook and by the closure of openings of hook, and drainage thread will not be deviate from, by 2 from hook
Drainage thread just can outwards be supported and come by individual action bars, and it is universal solid that 2 action bars are respectively adopted multiloop livewire work support bar
Determining device, be fixed on cross-arm, the U-shaped deck of the universal fixing device of multiloop livewire work support bar can be with holding at cross-arm
Any position, locked by trip bolt, the hook of action bars afterbody is through in the ring head of eye bolt, can make action bars
Position immobilizes, by eye bolt rotation in U-shaped deck, it is achieved the all-directional rotation of action bars, by regulation
The angle of the universal fixing device of multiloop livewire work support bar and the length of action bars can realize fixing action bars and drain
Alignment outer support expansion, thus ensured that earth potential working personnel can have enough working spaces when lower phase cross-arm operation, logical
Cross employing and rotate livewire work drain support operation instrument and the universal fixing device of multiloop livewire work support bar, make drainage thread
Support expansion is simpler, operates easier, safe and reliable secure, drastically increases working performance.
Step 5: earth potential electrician coordinates in special isolation pivoted arm ladder system to tower and be fixed on tower body appropriate location with ground electrician, etc.
Current potential electrician fixes two anti-ropes, and ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, isoelectric level
Electrician enters highfield；
Earth potential electrician coordinates with ground electrician special isolation pivoted arm ladder is fixed on tower body appropriate location, installs fixing reliable, and is easy to
Pivoted arm ladder rotates, and isoelectric level electrician fixes two anti-ropes, applies for entering highfield to work director, obtains work director same
After meaning, ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, enables isoelectric level electrician to enter safely
Entering highfield, by ground, electrician pulls tail rope, makes isoelectric level electrician's quick and stable carry out highfield, it is to avoid sending out of phenomenon of arc discharge
Raw, effectively ensure the personal safety of isoelectric level electrician.
Step 6: the front card of fixture is passed to isoelectric level electrician with insulating bar by earth potential electrician, isoelectric level electrician is by front card clamping
On cross-arm, rear card is placed on cross-arm by earth potential electrician, adjusts the adjusting screw of fixture simultaneously；
By front card and rear card, effectively ensure that special isolation pivoted arm ladder is reliable and stable, it is to avoid special isolation pivoted arm ladder is at operation process
The middle generation that rotational displacement situation occurs.
Step 7: old insulator chain is removed:
A) on tower, earth potential electrician, isoelectric level electrician coordinate mounting bracket bottle stand；
B) on isoelectric level electrician and Ta, the locking pin at two ends is taken out by earth potential electrician respectively；
C) earth potential electrician tightens up leading screw, makes fixture stress, isoelectric level electrician by insulator chain conductor wire end disengage, earth potential electrician with
Isoelectric level electrician coordinates the disengagement of insulator chain cross-arm-end；
Earth potential electrician operates with isoelectric level electrician's coordinated, is and closely operates, easy to operate, and working performance is high, and quality can
By secure.
Step 8: earth potential electrician and ground electrician fit through insulation transmission rope and put down by old insulator chain, with stylish insulator chain
Follow to operating position；Transmittance process notes controlling well the position of the most upper and lower two insulator string strings, prevents mutually to touch
Hit.
Step 9: new insulator chain is installed: the installation procedure of new insulator chain is contrary to the above；
Step 10: install two ends locking pin, earth potential electrician unclamps leading screw, checks insulator chain stressing conditions, it is ensured that safety can
Lean on.
Step 11: isopotential electrical coordinates dismounting Work tool with earth potential electrician, prepares to exit highfield.
Step 12: after isopotential electrical work area is steady, highfield is left in signal, and ground electrician controls special isolation pivoted arm ladder and pulls it toward horizontal stroke
At load, isoelectric level electrician is rapidly separated, steadily to cross-arm；Avoid the generation of phenomenon of arc discharge, effectively ensure isoelectric level electrician
Personal safety.
Step 13: earth potential electrician removes on tower power tool and is transferred to ground by insulation transmission rope, recovers drainage thread to making
State before industry.
Step 14: after electrician checks that on tower, nothing leaves over instrument on tower, the steady lower tower of back of the body insulation transmission rope.
Step 15: finisher's utensil, site clearing, recover circuit re-switching.
Ground electrician arranges all Work tools, and work director or guardian check Work tool site clearing；Work director converges to scheduling
Report, content is: this artificial work director XXX, XX kV XXX circuit charged changing tension-resisting insulator work is tied
Bundle, on tower, personnel withdraw, and without legacy on tower, on line, wire, insulator and gold utensil etc. have restored to the original state, can recover line
Road reclosing device.
Embodiment one
Drainage thread is utilized to support method charged for replacement on certain 220kV circuit of expansion live-line replacing multiloop strain insulator string
Strain insulator string, comprises the steps:
1) work director goes into operation to dispatching of power netwoks person's application: this artificial work exists day by day director XXX, X X month X
Charged changing tension-resisting insulator on 220kV XX circuit, this job request inactive line reclosing device, jump if meeting circuit
Lock, without contact, must not send by force；After obtaining scheduling grant, the verification dual title of circuit and bar number；
2) work ticket, the task that hands over work to one's successor, safety measure and technical measures are read out in work director scene；Check operating personnel's spirit
Situation, dressing situation and Work tool are the most intact complete；Explain dangerous spot and preventive measure, clearly make division of labor and lines of specialities and safety is arranged
Execute and points for attention；
3) staff uses the insulation resistance of megameter detection insulating tool, checks that bearing tool is the most intact flexibly, and screening clothing is
No intact；
4) at earth potential electrician, isoelectric level electrician Deng Ta to cross-arm, it is, hangs up properly seat belt, insulation transmission rope is suspended on suitable position
Putting, earth potential electrician coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is secured in place, logical
Cross drainage thread and support expansion device by the drainage thread above job position to outer support expansion；
5) earth potential electrician coordinates in special isolation pivoted arm ladder system to tower and be fixed on tower body appropriate location, isoelectric level with ground electrician
Electrician fixes two anti-ropes, and ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, isoelectric level electrician
Enter highfield；
6) the front card of fixture is passed to isoelectric level electrician with insulating bar by earth potential electrician, and isoelectric level electrician is connected in before pacifying
On cross-arm, rear card is placed on cross-arm by earth potential electrician, adjusts the adjusting screw of fixture simultaneously；
7) old insulator chain is removed:
A) on tower, earth potential electrician, isoelectric level electrician coordinate mounting bracket bottle stand；
B) on isoelectric level electrician and Ta, the locking pin at two ends is taken out by earth potential electrician respectively；
C) earth potential electrician tightens up leading screw, makes fixture stress, isoelectric level electrician by insulator chain conductor wire end disengage, earth potential electrician with
Isoelectric level electrician coordinates the disengagement of insulator chain cross-arm-end；
8) earth potential electrician and ground electrician fit through insulation transmission rope old insulator chain is put down, follow with stylish insulator chain
To operating position；
9) new insulator chain is installed: the installation procedure of new insulator chain is contrary to the above；
10) installing two ends locking pin, earth potential electrician unclamps leading screw, checks insulator chain stressing conditions, it is ensured that safe and reliable；
11) isopotential electrical coordinates dismounting Work tool with earth potential electrician, prepares to exit highfield；
12), after isopotential electrical work area is steady, highfield is left in signal, and ground electrician controls special isolation pivoted arm ladder and pulls it toward at cross-arm,
Isoelectric level electrician is rapidly separated, steadily to cross-arm；
13) earth potential electrician removes on tower power tool and is transferred to ground by insulation transmission rope, and drainage thread is recovered shape to operation
State；
14) after on tower, electrician checks that on tower, nothing leaves over instrument, the steady lower tower of back of the body insulation transmission rope；
15) ground electrician arranges all Work tools, and work director or guardian check Work tool site clearing；
16) work director reports to scheduling: this artificial work director xxx, 220kV XX circuit changing tension insulator in live line
String work terminates, and personnel withdraw, and without legacy on tower, on wire, wire, insulator and gold utensil etc. have restored to the original state,
Circuit re-switching device can be recovered.
Embodiment two
Drainage thread is utilized to support method charged for replacement on certain 220kV circuit of expansion live-line replacing multiloop strain insulator string
Dish type porcelain strain insulator string, comprises the steps:
1) application inactive line reclosing, the verification dual title of circuit and bar number；
2) division of labor and lines of specialities, safety measure and points for attention are clearly made；
3) staff uses the insulation resistance of megameter detection insulating tool, checks that bearing tool is the most intact flexibly, and screening clothing is
No intact；
4) at earth potential electrician, isoelectric level electrician Deng Ta to cross-arm, it is, hangs up properly seat belt, insulation transmission rope is suspended on suitable position
Putting, earth potential electrician coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is secured in place, logical
Cross drainage thread and support expansion device by the drainage thread above job position to outer support expansion, cross-arm corresponding position above job position
Hang the early warning type spacing umbrella ground electrician of insulation and pass to tower on electrician with insulation transmission rope surveying after zero bar assembles, electrician on tower
Detect the zero resistance insulator quantity of insulator chain to be changed；
5) earth potential electrician coordinates in special isolation pivoted arm ladder system to tower and be fixed on tower body appropriate location with ground electrician, waits electricity
Position electrician fixes two anti-ropes, and ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, isopotential electrical
Work enters highfield；
6) the front card of fixture is passed to isoelectric level electrician with insulating bar by earth potential electrician, and isoelectric level electrician is connected in horizontal stroke before pacifying
In load, rear card is placed on cross-arm by earth potential electrician, adjusts the adjusting screw of fixture simultaneously；
7) old insulator chain is removed:
A) on tower, earth potential electrician, isoelectric level electrician coordinate mounting bracket bottle stand；
B) on isoelectric level electrician and Ta, the locking pin at two ends is taken out by earth potential electrician respectively；
C) earth potential electrician tightens up leading screw, makes fixture stress, and insulator chain conductor wire end is disengaged by isoelectric level electrician, earth potential electrician
Coordinate with isoelectric level electrician and insulator chain cross-arm-end is disengaged；
8) earth potential electrician and ground electrician fit through insulation transmission rope old insulator chain is put down, follow with stylish insulator chain
To operating position；
9) new insulator chain is installed: the installation procedure of new insulator chain is contrary to the above；
10) installing two ends locking pin, earth potential electrician unclamps leading screw, checks insulator chain stressing conditions, it is ensured that safe and reliable；
11) isopotential electrical coordinates dismounting Work tool with earth potential electrician, prepares to exit highfield；
12), after isopotential electrical work area is steady, highfield is left in signal, and ground electrician controls special isolation pivoted arm ladder and pulls it toward at cross-arm,
Isoelectric level electrician is rapidly separated, steadily to cross-arm；
13) earth potential electrician removes on tower power tool and is transferred to ground by insulation transmission rope, and drainage thread is recovered shape to operation
State；
14) after on tower, electrician checks that on tower, nothing leaves over instrument, the steady lower tower of back of the body insulation transmission rope；
15) finisher's utensil, site clearing, recover circuit re-switching.
Embodiment three
Drainage thread is utilized to support method charged for replacement on certain 110kV circuit of expansion live-line replacing multiloop strain insulator string
Dish type porcelain strain insulator string, comprises the steps:
1) application inactive line reclosing, the verification dual title of circuit and bar number；
2) division of labor and lines of specialities, safety measure and points for attention are clearly made；
3) staff uses the insulation resistance of megameter detection insulating tool, checks that bearing tool is the most intact flexibly, and screening clothing is
No intact；
4) at earth potential electrician, isoelectric level electrician Deng Ta to cross-arm, it is, hangs up properly seat belt, insulation transmission rope is suspended on suitable position
Putting, earth potential electrician coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is secured in place, logical
Cross drainage thread and support expansion device by the drainage thread above job position to outer support expansion；After ground electrician assembles survey zero bar
Passing to electrician on tower with insulation transmission rope, on tower, electrician detects the zero resistance insulator quantity of insulator chain to be changed；
5) earth potential electrician coordinates in special isolation pivoted arm ladder system to tower and be fixed on tower body appropriate location, isoelectric level with ground electrician
Electrician fixes two anti-ropes, and ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, isoelectric level electrician
Enter highfield；
6) the front card of fixture is passed to isoelectric level electrician with insulating bar by earth potential electrician, and isoelectric level electrician is connected in horizontal stroke before pacifying
In load, rear card is placed on cross-arm by earth potential electrician, adjusts the adjusting screw of fixture simultaneously；
7) old insulator chain is removed:
A) on tower, earth potential electrician, isoelectric level electrician coordinate mounting bracket bottle stand；
B) on isoelectric level electrician and Ta, the locking pin at two ends is taken out by earth potential electrician respectively；
C) earth potential electrician tightens up leading screw, makes fixture stress, isoelectric level electrician by insulator chain conductor wire end disengage, earth potential electrician with
Isoelectric level electrician coordinates the disengagement of insulator chain cross-arm-end；
8) earth potential electrician and ground electrician fit through insulation transmission rope old insulator chain is put down, follow with stylish insulator chain
To operating position；
9) new insulator chain is installed: the installation procedure of new insulator chain is contrary to the above；
10) installing two ends locking pin, earth potential electrician unclamps leading screw, checks insulator chain stressing conditions, it is ensured that safe and reliable；
11) isopotential electrical coordinates dismounting Work tool with earth potential electrician, prepares to exit highfield；
12), after isopotential electrical work area is steady, highfield is left in signal, and ground electrician controls special isolation pivoted arm ladder and pulls it toward at cross-arm,
Isoelectric level electrician is rapidly separated, steadily to cross-arm；
13) earth potential electrician removes on tower power tool and is transferred to ground by insulation transmission rope, and drainage thread is recovered shape to operation
State；
14) after on tower, electrician checks that on tower, nothing leaves over instrument, the steady lower tower of back of the body insulation transmission rope；
15) finisher's utensil, site clearing, recover circuit re-switching.
Claims (4)
1. the method that drainage thread supports expansion live-line replacing multiloop strain insulator string, it comprises the steps:
1) application inactive line reclosing, the verification dual title of circuit and bar number；
2) division of labor and lines of specialities, safety measure and points for attention are clearly made；
3) staff uses the insulation resistance of megameter detection insulating tool, checks that bearing tool is the most intact flexibly, and whether screening clothing
Intact；
4) use drainage thread to support expansion device and carry out the support expansion of drainage thread；
5) the front card of fixture is passed to isoelectric level electrician with insulating bar by earth potential electrician, and front card is connected in cross-arm by isoelectric level electrician
On, rear card is placed on cross-arm by earth potential electrician, adjusts the adjusting screw of fixture simultaneously；
6) old insulator chain is removed:
A. on tower, earth potential electrician, isoelectric level electrician coordinate mounting bracket bottle stand；
B. on isoelectric level electrician and Ta, the locking pin at two ends is taken out by earth potential electrician respectively；
7) earth potential electrician and ground electrician fit through insulation transmission rope old insulator chain is put down, with stylish insulator chain follow to
Operating position；
8) new insulator chain is installed: the installation procedure of new insulator chain is contrary to the above；
9) installing two ends locking pin, earth potential electrician unclamps leading screw, checks insulator chain stressing conditions, it is ensured that safe and reliable；
10) isopotential electrical coordinates dismounting Work tool with earth potential electrician, prepares to exit highfield；
11) earth potential electrician removes on tower power tool and is transferred to ground by insulation transmission rope, and drainage thread is recovered shape to operation
State；
12) after on tower, electrician checks that on tower, nothing leaves over instrument, the steady lower tower of back of the body insulation transmission rope；
13) finisher's utensil, site clearing, recover circuit re-switching；
It is characterized in that: the method also includes:
A. earth potential electrician coordinates in special isolation pivoted arm ladder system to tower and be fixed on tower body appropriate location, isopotential electrical with ground electrician
Work fixes two anti-ropes, and ground electrician controls special isolation pivoted arm ladder tail rope, is pulled at wire operation, and isoelectric level electrician enter
Enter highfield；
B., after isopotential electrical work area is steady, highfield is left in signal, and ground electrician controls special isolation pivoted arm ladder and pulls it toward at cross-arm, etc.
Current potential electrician is rapidly separated, steadily to cross-arm；
Described step 4) in, at earth potential electrician, isoelectric level electrician Deng Ta to cross-arm, it is, hangs up properly seat belt, by insulation transmission rope
Being suspended on appropriate location, earth potential electrician coordinates with ground electrician and drainage thread supports expansion device is transferred on tower, and is fixed on
Appropriate location, supports expansion device by the drainage thread above job position to outer support expansion by drainage thread；
Described step 6) in, earth potential electrician tightens up leading screw, makes fixture stress, and insulator chain conductor wire end is disengaged by isoelectric level electrician,
Earth potential electrician coordinates the disengagement of insulator chain cross-arm-end with isoelectric level electrician.
2. the method that drainage thread as claimed in claim 1 supports expansion live-line replacing multiloop strain insulator string, its feature
Being: in described step 4, earth potential electrician uses drainage thread to support expansion device and is outwards propped up by the drainage thread above job position
After support expansion, above job position, cross-arm corresponding position hangs the early warning type spacing umbrella of insulation.
3. the method that drainage thread as claimed in claim 1 or 2 supports expansion live-line replacing multiloop strain insulator string, its
Being characterised by: when the insulator chain changed is dish type porcelain insulator string, after described step 4, ground electrician is surveying
Zero bar passes to electrician on tower with insulation transmission rope after assembling, and on tower, electrician detects the zero resistance insulator of insulator chain to be changed
Quantity.
4. the method that drainage thread as claimed in claim 1 or 2 supports expansion live-line replacing multiloop strain insulator string, its
It is characterised by can be widely applied to earth potential replacement straight line bunch of insulator operation, earth potential replacement linear string monolithic insulator,
In potentiometric detection straight line zero resistance insulator, earth potential live replacing drainage thread transfusion bottle operation.
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| CN201310439689.3A CN103474909B (en) | 2013-09-25 | 2013-09-25 | Drainage thread supports the method for expansion live-line replacing multiloop strain insulator string |
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| CN201310439689.3A CN103474909B (en) | 2013-09-25 | 2013-09-25 | Drainage thread supports the method for expansion live-line replacing multiloop strain insulator string |
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| CN103474909B true CN103474909B (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987639A (en) * | 2020-08-04 | 2020-11-24 | 中国电建集团河南工程有限公司 | Construction method for replacing tension porcelain insulator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746314A (en) * | 2013-12-30 | 2014-04-23 | 江苏省电力公司常州供电公司 | Quick hot-line by-pass jumper removing operation method for 10kV insulated power distribution line |
| CN104051986A (en) * | 2014-06-27 | 2014-09-17 | 国网河南省电力公司平顶山供电公司 | Tower minimum space operating method based on insulated isolation umbrella |
| CN104218493B (en) * | 2014-08-13 | 2017-03-01 | 国家电网公司 | ± 800kV UHVDC Transmission Lines live-line replacing strain hard tube mother's wire jumper insulator technique |
| CN116260073B (en) * | 2023-05-16 | 2023-08-04 | 山西晋缘电力化学清洗中心有限公司 | Operation method for live replacement of 35kV linear insulator string |
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| CN101286624A (en) * | 2008-03-07 | 2008-10-15 | 福建省厦门电业局 | Safety distance extending method for live operation with earth electric potential of tension resistant tower crossarm |
| CN201440584U (en) * | 2009-06-11 | 2010-04-21 | 华北电力科学研究院有限责任公司 | Ground potential replacement device for tension tower insulators and accessories in power transmission line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH01126119A (en) * | 1987-05-29 | 1989-05-18 | Tokyo Electric Power Co Inc:The | Method of anchoring through wire |
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| CN101286624A (en) * | 2008-03-07 | 2008-10-15 | 福建省厦门电业局 | Safety distance extending method for live operation with earth electric potential of tension resistant tower crossarm |
| CN201440584U (en) * | 2009-06-11 | 2010-04-21 | 华北电力科学研究院有限责任公司 | Ground potential replacement device for tension tower insulators and accessories in power transmission line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111987639A (en) * | 2020-08-04 | 2020-11-24 | 中国电建集团河南工程有限公司 | Construction method for replacing tension porcelain insulator |
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