CN104051986A - Tower minimum space operating method based on insulated isolation umbrella - Google Patents
Tower minimum space operating method based on insulated isolation umbrella Download PDFInfo
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- CN104051986A CN104051986A CN201410292467.8A CN201410292467A CN104051986A CN 104051986 A CN104051986 A CN 104051986A CN 201410292467 A CN201410292467 A CN 201410292467A CN 104051986 A CN104051986 A CN 104051986A
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Abstract
The invention provides a tower minimum space operating method based on an insulated isolation umbrella. The movement range of operating personnel is limited through a constraint limiting rod and an isolation layer of the constraint limiting insulated isolation umbrella, the distance between the operating personnel and an electrified body meets the safety requirement all the time when the operating personnel enter the range and reaches the operating position to work, and the method is applicable to various tower operations along a tower cross arm, wherein the various tower operations include detection of zero resistance insulators, replacement of a whole string of linear insulators on a tower, replacement of a whole string of tension insulators on the tower, and replacement of the whole string of tension insulators on the tower in cooperation with equipotential. In the operating process of the method, shutting down is not required, the operating personnel are prevented from entering the electrified space according to limiting prompt of the insulated isolation umbrella and can work at ease, operating efficiency is improved, operation is easy and convenient, and safety of the operating personnel is effectively guaranteed.
Description
Technical field
The present invention relates to electrical network pole tower operation technical field, relate in particular to a kind of shaft tower minimum space working system based on insulation isolation umbrella.
Background technology
Due to circuit corridor growing tension, more and more with tower multi-loop line in newly-built and reconstruction transmission line in recent years, exceed 30% of existing operation transmission line at present.Require D, E class overhauling project need to not have a power failure and overhaul, safeguard and change according to repair based on condition of component, and according to the same trade to mark and power supply reliability requirement, being difficult to application for same tower multi-loop line has a power failure, once and line power is interrupted, can cause large area grid cut-off, having a strong impact on power supply reliability and the power-on time of electrical network, this just requires grid maintenance personnel must carry out live line working.
Application number is that 201310439268.0 patent of invention discloses a kind of utilization control far away tightening device earth potential replacement multiloop linear insulator chain working system, the live line working method inventing for above-mentioned situation for the staff of this electric company, by the mutual coordinated of electrician on ground electrician and tower, effectively having realized the installation of control tightening device far away and adjustable conductor backup protection rope fixes, a side of wire was bowl locking pin takes out, the lifting of wire, the disengaging of insulator string and side of wire was bowl head, the taking-up of cross-arm side insulator locking pin, the transmission of new and old insulator string, the installation of new insulator string cross-arm side locking pin, side of wire was bulb and bowl a series of operations such as installation and the recovery of locking pin of head, thereby effectively realize the object of charged for replacement multiloop linear insulator on the less multi-circuit tower of cross-arm spacing, effectively ensure that operating personnel avoids high-tension threat, safe and reliable, its core is far to control the application of tightening device.
By typical multi-circuit tower cross-arm size is analyzed, because the wire of same tower multi-circuit tower is vertical arrangement, wire spacing is little, the minimum safe distance that deduction insulator length and safety specify, most shaft towers can not meet routine work requirement, so need a kind of needs with meet live line working with the corresponding specific purpose tool of tower multi-loop line live line working, for this reason, the staff of this electric company has invented a kind of insulation isolation umbrella, be application number and be 201120419585.2 the disclosed a kind of safety limiter for live operation over multi-circuit tower of utility model patent, it is made up of insulation vertical rod and gag lever post, gag lever post is located at the lower end of insulation vertical rod, and be and be horizontally disposed with, alert is avoided safe distance at any time, improve innovation based on this patent thinking, just can form a kind of shaft tower minimum space working system.
Summary of the invention
The object of the invention is to aim to provide a kind of shaft tower minimum space working system based on insulation isolation umbrella, in the method operating process, isolate the spacing prompting of umbrella according to insulation without power failure, operating personnel, avoid entering charging space, can relievedly carry out Job Operations, improve operating efficiency, easy and simple to handle, effectively ensure operator safety.
For realizing the technical scheme that object of the present invention adopts be: a kind of shaft tower minimum space working system based on insulation isolation umbrella, comprises the steps:
1) according to work ticket system, the live line working work that will carry out is applied for;
2) before operation, hold teams and groups' meeting and carry out safety inspection;
3) operating personnel's tape insulation transmission rope arrives job position, hangs up properly and transmits rope and earth connection;
4) operating personnel coordinates the upper insulation isolation of transmission umbrella with ground, and on tower, electrician is engaged on the live wire of job position top and installs the isolation umbrella that insulate;
5) operating personnel, under the pressure position-limiting action of insulation isolation umbrella, arrives job position along operation cross-arm;
6) operating personnel coordinates operational method routinely to complete live line working work with ground electrician;
7) operating personnel, under the pressure position-limiting action of insulation isolation umbrella, arrives and gets back to shaft tower safe place along operation cross-arm, coordinates and removes insulation isolation umbrella and earth connection.
In the present invention, the spacing insulation isolation of pressure used umbrella main innovate point is to adopt self-locking hook, and contraction type is forced gag lever post, collapsible netted separator and be provided with device for opening.Self-locking hook and umbrella bottom surface are that 1.2 meters, 220kV are 2.1 meters apart from 110kV, and collapsible netted isolation umbrella radius is 0.9 meter, selects the making material of glass cloth laminated board as suspension arrangement and separator; In selecting, fill cellular plastic insulation pipe as the making material of forcing limit part; Select the connecting material of nylon as each parts, device overall weight is not enough 3kg, is convenient to hang and carries, and has successfully realized the object that multi-circuit tower that 110kV-220kV meets spacing working system carries out live line working.
Shaft tower minimum space industry method based on insulation isolation umbrella is forced pressure gag lever post and the separator restriction operating personnel scope of activities of spacing insulation isolation by utilization, make operating personnel meet all the time safety requirement in the distance that enters and arrive job position when work and electrified body, operation on the various towers that are applicable to carry out along cross arm of tower, comprises on zero resistance insulator detection, tower and changes on whole string linear insulator, tower and change on the resistance to insulator of whole string, tower and be combined with equipotential and change whole string strain insulator.
This operational method is mainly while transfusion bottle being housed for strain insulator drainage thread or while changing 110kV, the operation of 220kV linear insulator, when job position top electrified body is difficult for adopting the method increase working space that supports expansion, at job position overhung stopping means, the scope of activities of restriction operating personnel in operation process, prevent from moving the excessive air gap deficiency that causes because of operating personnel, when adopting said method, operating personnel is the earth potential working region in safety all the time, effectively ensure that operating personnel avoids high-tension threat, safe and reliable; Reduced power failure, avoided large area grid cut-off, effective guarantee power-on time, improved power supply reliability, application should be widely promoted.
Embodiment
A kind of shaft tower minimum space working system based on insulation isolation umbrella of the present invention, the on-the-spot personnel of teams and groups comprise 7, wherein, 1 of class monitor and group leader (work director), 1 of monitor's (on tower), 2 of electricians (being respectively A, B) on tower, 3 of ground electricians, concrete grammar comprises the steps:
Step 1: the live line working work that will carry out is applied for according to work ticket system;
First, determine whether live line working work needs part or all of power failure, though or equipment does not need to have a power failure, need make cover bar near charging equipment, all need to explicitly point out adopting safety measures in productive technologies and points for attention.If this work belongs to accident rush repair equipment, can not fill in work ticket, but adopting safety measures in productive technologies should meet trouble free service requirement, and have guardian.
Work ticket is filled in clear with pen or ball point pen by service work director, duplicate, portion is handed over and done director, and portion is preserved by monitor, and is signed and issued by technician in charge or power department supervisor director.
Step 2: hold teams and groups' meeting before operation and carry out safety inspection;
The main purpose of teams and groups' meeting is that task arrangement and safety measure emphasize, require to preside over and be responsible for by class monitor and group leader read out, hand over work to one's successor task, safety measure and the technical measures of work ticket, personnel line up, check that whether intact operating personnel's mental status, dressing situation and Work tool be complete, explain dangerous spot and precautionary measures, clearly make division of labor and lines of specialities, safety measure and points for attention.
Before operation, safety inspection is important step and the customary link in safety three inspections, and each multistage personnel carry out security work responsibility system.Class monitor and group leader is responsible for correctly organization work safely, carry out safety thought education in conjunction with actual, supervise, control personnel follow safety rules, and check whether the contained safety measure of work ticket safety measure whether correct complete and that monitor has done meets on-the-spot physical condition; Before work, staff is explained to safety event; Whether monitor is responsible for the listed safety measure of censorship ticket correctly complete; Whether the safety measure that working site is arranged is perfect; Check that power failure equipments has or not the danger of unexpected incoming call; Must inquire to director clearly to content generation query listed in work ticket, require if desired to do to supplement in detail; Crewmember needs to be mutually concerned about, mutually supervises, and strictly carries out work by safety regulations.
Step 3: operating personnel's tape insulation transmission rope arrives job position, hangs up properly and transmits rope and earth connection;
Before operation final step to check whether the ground of dual name, shaft tower of shaft tower simple and honest, shaft tower have or not tilt to have flawless, bracing wire whether firmly, whether climbers safety belt qualified, whether test label qualified etc., after inspection, monitor steps on tower and carries out guarding on tower.After applying for that to dispatcher operation starts, by A electrician on tower under tutorial monitoring, carry insulation transmission rope and step on tower along pin nail, to job position top cross-arm, safety belt is tied up on the firm member of steel tower, insulation is transmitted to rope and install in cross-arm operation appropriate location, B electrician Deng Ta is to job position, and coordinate electroscope and ground wire are reached on tower with ground electrician, by phase electrical verification and be firmly linked with earth connection, the true no-voltage of director's electrical verification of reporting, hanging earthing conductor are complete.
Step 4: operating personnel coordinates the upper insulation isolation of transmission umbrella with ground, on tower, electrician is engaged on the live wire of job position top and installs the isolation umbrella that insulate;
Spacing insulation umbrella and insulating bar are passed to job position by ground electrician, and A, B electrician coordinate the spacing umbrella of suspension insulation, and A electrician moves to wire horizontal level.
Force spacing insulation isolation umbrella main innovate point to be to adopt self-locking hook, contraction type is forced gag lever post, collapsible netted separator and be provided with device for opening.Self-locking hook and umbrella bottom surface are that 1.2 meters, 220kV are 2.1 meters apart from 110kV, and collapsible netted isolation umbrella radius is 0.9 meter, selects the making material of glass cloth laminated board as suspension arrangement and separator; In selecting, fill cellular plastic insulation pipe as the making material of forcing limit part; Select the connecting material of nylon as each parts.Device overall weight deficiency 3kg.
Step 5: operating personnel, under the pressure position-limiting action of insulation isolation umbrella, arrives job position along operation cross-arm;
A electrician is at wire horizontal level; system, hang up properly safety belt; B electrician and ground electrician cooperatively interact, and insulation line lifter, adjustable conductor protection insulating cord are passed to service position, and A electrician and B electrician cooperatively interact and install insulation line lifter and adjustable conductor backup protection rope.
Step 6: operating personnel coordinates operational method routinely to complete live line working work with ground electrician;
In safe distance, can carry out the routine operation of live line working, to change insulator string as example: after safety measure is carried out, A electrician is connected and fixed the main material of an end span cross-arm of protection rope for conductor with U-shaped ring after along under insulator string to wire, whether the spring catch that checks insulator is intact, lack after polishing, after safety belt is fastened on insulator string, the lower end of protection rope for conductor is connected on king-tower material with U-shaped ring; B electrician steps on wire, fastens seat belts at insulator string along insulator string, and simultaneously ground staff adjusts double-hook wire grip or lever hoist to be passed to setting with transmitting to restrict afterwards; A electrician hangs over steel wire by double-hook wire grip or lever hoist and puts, shut toll bar, adjust double-hook wire grip or lever hoist, lower hook is hooked on wire, seal lower toll bar, till being tightened to insulator activity after inspection double-hook wire grip or lever hoist sealing are good, check that the stressed good rear insulator string that rotates of double-hook wire grip or lever hoist takes off the spring catch that descends a slice insulator most; B electrician fastens on first insulator with transmitting rope, takes off the spring catch of first insulator, and insulator string is departed to ball-eye, passes to ground with transmitting rope, then with transmitting rope, new insulator string is passed to setting.
In the time that new insulator is in place, the first side's of hanging up first, hang again socket-clevis eye place, unclasp subsequently double-hook wire grip or lever hoist to new insulator string downside pin and can, to upper, be plugged locking pin, rotate insulator and adjust a bowl draught animals direction, unclamp double-hook wire grip or lever hoist to not stressing, remove double-hook wire grip or lever hoist, and pass to ground with transmitting rope, check that the connection of the each portion of insulator is good and remove insulator surface dirt and attachment; It should be noted that place can adopt electrodeless rope with old band new method lifting, let-down insulator string preferably, transmit rope and will separate, avoid being wound around.
Step 7: operating personnel, under the pressure position-limiting action of insulation isolation umbrella, arrives and gets back to shaft tower safe place along operation cross-arm, coordinates and removes insulation isolation umbrella and earth connection.
A/B electrician opens being connected of the U-shaped ring in wire safety rope lower end and shaft tower, unfasten one's seat-belt, step on to cross-arm along insulator string, remove protection rope for conductor and pass to ground with transmitting rope, after completing, take off transmission rope and unfasten one's seat-belt, and band transmission rope is followed closely lower tower to ground along pin; As operation does not complete, band transmits rope and forwards successively another phase to, changes the insulator string of other phase places according to step; As worked, check on cross-arm and setting has exhaustively instrument, material, really after no problem, order to remove insulation isolation umbrella and earth connection; Check the order of dismounting ground wire and the reversed in order of hanging earthing conductor; Earth connection operates on tower after removing exhaustively instrument and material on personnel inspection tower, after no problem, the lower tower of band transmission rope is reported to ground to work director, ground electrician arranges all Work tools, check Work tool site clearing, the most backward dispatcher reports and finishes, on tower, personnel withdraw, and on tower, on line, without legacy, wire, insulator and gold utensil etc. restore to the original state.
This operational method operating personnel is the current potential operating area in safety all the time, has effectively ensured that operating personnel avoids high-tension threat, safe and reliable; Reduced power failure, avoided large area grid cut-off, effective guarantee power-on time, improved power supply reliability, application should be widely promoted.
Embodiment
Certain electrical network maintenance teams and groups, 7 people's configurations that crewmember is standard, in the time changing the XP-7 model insulator of multiloop straight line pole 3# bar B phase, have applied the shaft tower minimum space working system based on insulation isolation umbrella, comprise the steps:
1) according to work ticket system, the live line working work that will carry out is applied for, determine whether live line working work needs part or all of power failure, though or equipment does not need to have a power failure, need make cover bar near charging equipment, explicitly point out adopting safety measures in productive technologies and points for attention;
2) before operation, hold teams and groups' meeting and carry out safety inspection, task arrangement and safety measure and emphasize, presiding over and be responsible for read out, hand over work to one's successor task, safety measure and the technical measures of work ticket by class monitor and group leader;
3) after applying for that to dispatcher operation starts, by A electrician on tower under tutorial monitoring, carry insulation transmission rope and step on tower along pin nail, to job position top cross-arm, safety belt is tied up on the firm member of steel tower, insulation is transmitted to rope and install in cross-arm operation appropriate location, B electrician Deng Ta is to job position, and coordinate electroscope and ground wire are reached on tower with ground electrician, by phase electrical verification and be firmly linked with earth connection, the true no-voltage of director's electrical verification of reporting, hanging earthing conductor are complete;
4) spacing insulation umbrella and insulating bar are passed to job position by ground electrician, and A, B electrician coordinate the spacing umbrella of suspension insulation, and A electrician moves to wire horizontal level;
5) A electrician is at wire horizontal level, system, hang up properly safety belt, B electrician and ground electrician cooperatively interact, and insulation line lifter, adjustable conductor protection insulating cord are passed to service position, and A electrician and B electrician cooperatively interact and install insulation line lifter and adjustable conductor backup protection rope;
6) after safety measure is carried out, A electrician is connected and fixed the main material of an end span cross-arm of protection rope for conductor with U-shaped ring after along under insulator string to wire, whether the spring catch that checks insulator is intact, lack after polishing, after safety belt is fastened on insulator string, the lower end of protection rope for conductor is connected on king-tower material with U-shaped ring; B electrician steps on wire, fastens seat belts at insulator string along insulator string, and simultaneously ground staff adjusts double-hook wire grip or lever hoist to be passed to setting with transmitting to restrict afterwards;
7) A electrician hangs over steel wire by double-hook wire grip or lever hoist and puts, shut toll bar, adjust double-hook wire grip or lever hoist, lower hook is hooked on wire, seal lower toll bar, till being tightened to insulator activity after inspection double-hook wire grip or lever hoist sealing are good, check that the stressed good rear insulator string that rotates of double-hook wire grip or lever hoist takes off the spring catch that descends a slice insulator most;
8) B electrician fastens on first insulator with transmitting rope, takes off the spring catch of first insulator, and insulator string is departed to ball-eye, passes to ground with transmitting rope, then with transmitting rope, new insulator string is passed to setting;
9) in the time that new insulator is in place, the first side's of hanging up first, hang again socket-clevis eye place, unclasp subsequently double-hook wire grip or lever hoist to new insulator string downside pin and can, to upper, be plugged locking pin, rotate insulator and adjust a bowl draught animals direction, unclamp double-hook wire grip or lever hoist to not stressing, remove double-hook wire grip or lever hoist, and pass to ground with transmitting rope, check that the connection of the each portion of insulator is good and remove insulator surface dirt and attachment;
10) A/B electrician opens being connected of the U-shaped ring in wire safety rope lower end and shaft tower, unfasten one's seat-belt, step on to cross-arm along insulator string, remove protection rope for conductor and pass to ground with transmitting rope, after completing, take off transmission rope and unfasten one's seat-belt, and band transmission rope is followed closely lower tower to ground along pin;
11), as operation does not complete, band transmits rope and forwards successively another phase to, changes the insulator string of other phase places according to step;
12) as worked, check on cross-arm and setting has exhaustively instrument, material, really after no problem, order to remove insulation isolation umbrella and earth connection;
13) check the order of dismounting ground wire and the reversed in order of hanging earthing conductor;
14) earth connection operates on tower after removing exhaustively instrument and material on personnel inspection tower, after no problem, the lower tower of band transmission rope is reported to ground to work director, ground electrician arranges all Work tools, check Work tool site clearing, the most backward dispatcher reports and finishes, on tower, personnel withdraw, and on tower, on line, without legacy, wire, insulator and gold utensil etc. restore to the original state.
While carrying out operation in the present embodiment, entrained auxiliary device comprises one of 110/220kV Special electroscope, one group of 110/220kV circuit Special grounding wire, some, safety belt, 0.5 ton of double-hook wire grip doctor, 20m transmits one, rope, 2,500 one of megger and steel wire cover and riding boogie board etc.
The present invention is intended to carry out the protection of potential safety, in the time carrying out this working system, notes also other work measure of shaft tower and protection, comprising: climb when shaft tower, notice checking that whether ascending tool is reliable, on shaft tower, when operation, must fasten seat belts; Safety belt should tie up on the firm member of shaft tower, should prevent that safety belt from being hurt by sharp thing; After fastening seat belts, must check whether clasp buckles; On shaft tower, when transfer tasks position, must not lose safety belt protection; Safety helmet must be worn for Field Force; On shaft tower, operating personnel will prevent thing, and Work tool, the material etc. using should be contained in kit bag; And use rope transmission, and must not throw out without care, sling will tie; Transmission personnel should leave weight below, and under shaft tower and setting below is forbidden that personnel are close and stopped; Strict implement power failure, electrical verification, hanging earthing conductor system; Before lifting lead wire, must carry out the safeguard measure that prevents wire dropping; Protection rope for conductor should have sufficient intensity; All Work tools must check through special messenger before use, ensure qualified, supporting, flexible.
Claims (3)
1. the shaft tower minimum space working system based on insulation isolation umbrella, is characterized in that: comprise the steps:
1) according to work ticket system, the live line working work that will carry out is applied for;
2) before operation, hold teams and groups' meeting and carry out safety inspection;
3) operating personnel's tape insulation transmission rope arrives job position, hangs up properly and transmits rope and earth connection;
4) operating personnel coordinates the upper insulation isolation of transmission umbrella with ground, and on tower, electrician is engaged on the live wire of job position top and installs the isolation umbrella that insulate;
5) operating personnel, under the pressure position-limiting action of insulation isolation umbrella, arrives job position along operation cross-arm;
6) operating personnel coordinates operational method routinely to complete live line working work with ground electrician;
7) operating personnel, under the pressure position-limiting action of insulation isolation umbrella, arrives and gets back to shaft tower safe place along operation cross-arm, coordinates and removes insulation isolation umbrella and earth connection.
2. shaft tower minimum space working system as claimed in claim 1, is characterized in that: the insulation vertical rod length of described insulation isolation umbrella is 1.2 meters～2.1 meters.
3. shaft tower minimum space working system as claimed in claim 1, is characterized in that: the gag lever post length of described insulation isolation umbrella is 0.9 meter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410292467.8A CN104051986A (en) | 2014-06-27 | 2014-06-27 | Tower minimum space operating method based on insulated isolation umbrella |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410292467.8A CN104051986A (en) | 2014-06-27 | 2014-06-27 | Tower minimum space operating method based on insulated isolation umbrella |
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| CN104051986A true CN104051986A (en) | 2014-09-17 |
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| CN201410292467.8A Pending CN104051986A (en) | 2014-06-27 | 2014-06-27 | Tower minimum space operating method based on insulated isolation umbrella |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242153A (en) * | 2014-09-29 | 2014-12-24 | 国家电网公司 | Construction technology for replacing monolithic 550kN glass insulators of strain towers of extra-high voltage direct-current transmission lines |
| CN105703263A (en) * | 2014-11-28 | 2016-06-22 | 国网河南省电力公司平顶山供电公司 | Ground potential indirect operation method based on remote control tightening operation device |
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| CN202268669U (en) * | 2011-10-29 | 2012-06-06 | 河南省电力公司平顶山供电公司 | Safety limiter for live operation over multi-circuit tower |
| CN203352051U (en) * | 2013-07-02 | 2013-12-18 | 国家电网公司 | Insulation protective umbrella |
| CN103474909A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Method for replacing multi-loop strain insulator string in drainage wire supporting distance expanding hot-line working |
| CN103474908A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Operation method utilizing remote control tightening device ground potential for replacing multi-loop linear insulator string |
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2014
- 2014-06-27 CN CN201410292467.8A patent/CN104051986A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202268669U (en) * | 2011-10-29 | 2012-06-06 | 河南省电力公司平顶山供电公司 | Safety limiter for live operation over multi-circuit tower |
| CN203352051U (en) * | 2013-07-02 | 2013-12-18 | 国家电网公司 | Insulation protective umbrella |
| CN103474909A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Method for replacing multi-loop strain insulator string in drainage wire supporting distance expanding hot-line working |
| CN103474908A (en) * | 2013-09-25 | 2013-12-25 | 国网河南省电力公司平顶山供电公司 | Operation method utilizing remote control tightening device ground potential for replacing multi-loop linear insulator string |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242153A (en) * | 2014-09-29 | 2014-12-24 | 国家电网公司 | Construction technology for replacing monolithic 550kN glass insulators of strain towers of extra-high voltage direct-current transmission lines |
| CN104242153B (en) * | 2014-09-29 | 2017-06-13 | 国家电网公司 | Change UHVDC Transmission Lines anchor support monolithic 550kN glass insulator construction technologies |
| CN105703263A (en) * | 2014-11-28 | 2016-06-22 | 国网河南省电力公司平顶山供电公司 | Ground potential indirect operation method based on remote control tightening operation device |
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Application publication date: 20140917 |
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