CN101640391B - Live-wire operation method for replacing insulator for 35kV distribution circuit - Google Patents

Live-wire operation method for replacing insulator for 35kV distribution circuit Download PDF

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Publication number
CN101640391B
CN101640391B CN2009103043614A CN200910304361A CN101640391B CN 101640391 B CN101640391 B CN 101640391B CN 2009103043614 A CN2009103043614 A CN 2009103043614A CN 200910304361 A CN200910304361 A CN 200910304361A CN 101640391 B CN101640391 B CN 101640391B
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electrician
platform
insulation
ground
insulated
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CN101640391A (en
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WUHAN CREDIT ELECTRIC POWER TECHNOLOGY Co Ltd
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WUHAN CREDIT ELECTRIC POWER TECHNOLOGY Co Ltd
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Abstract

The invention relates to the technical field of live-wire operation of a 35kV distribution circuit, and provides an intermediate potential live-wire operation method for replacing an insulator for a 35kV distribution circuit by using an insulating platform. Four types of operating personnel, including work managers, platform operating electricians, pole operating electricians and ground operating electricians coordinate with each other for operation. The operation method of the invention comprises the steps of on-site inspection of appliances, insulation shielding, control of conductor spacing, replacing operation, shield removing and the like. The operation method of the invention is used for live-wire operation of emergency repair and maintenance for the 35kV distribution circuit, improves the power distribution reliability of a distribution network and fills the internal blank in the field of live-wire operation of the 35kV distribution circuit.

Description

The 35kV distribution line live working is changed the operational method of insulator
Technical field
The present invention relates to 35kV distribution line live working technical field.
Background technology
Distribution network is direct power infrastructures towards large size industrial enterprise, the plurality of advantages that the 35kV distribution line is low because of its construction cost, the construction period is short, radius of electricity supply is bigger, and extensively adopt in each oil field at home.But because the distribution network insulation level is low, under atmospheric over-voltage, filth or other extraneous factor effect, easily break down, and because some areas power supply facilities is outmoded aging, equipment perfectness is low, and accident potential is increased.For improving the power supply reliability of distribution network, just must carry out charged repairing and upkeep operation to distribution network.
At present, domestic ongoing live line working concentrates on equal potential working mode on 110kV and the above power transmission sequence and two zones of medial potential working mode on 10kV and the following distribution line.And, the live line working technology of 35kV distribution line is not comprised that as yet technology such as insulator replacing carries out application study because the wire pitch of 35kV distribution line is little, electric pressure is high, transmission capacity is big.
Summary of the invention
Technical problem to be solved by this invention provides a kind of operational method of 35kV distribution line charged for replacement insulator, it is used for charged repairing and upkeep operation to the 35kV distribution line, improved the power supply reliability of distribution network, filled up domestic blank in this field.
For solving the problems of the technologies described above, the invention provides a kind of operational method of utilizing insulated platform the 35kV distribution line live working to be changed insulator, it is characterized in that, by the work director, platform operation electrician, operation electrician on the bar, Ground Operation electrician four class operating personnel coordinating operations, adopt the operation of intermediate potential method, may further comprise the steps:
Step 1, team enter the job site, and the work director reads out work ticket, the task that hands over work to one's successor, explanation safety notice and clarification in certain roles;
Whether the outward appearance of step 2, inspection operating apparatus, safety protective tools is excellent, if there is breakage, then changed; Adopt megohmmeter to the carrying out insulation property respectively along face and shake survey of the insulation clothing in the described safety protective tools, insulated target, insulation resistance is qualified greater than 700 megaohms, otherwise is changed; The operation electrician puts on insulation clothing, insulation boots, insulating gloves, insulation safety cap respectively on described platform operation electrician, the bar, and described insulation clothing, insulation boots, insulating gloves, insulation safety cap all satisfy the requirement of 35KV circuit homework;
Step 3, described work director check the circuit situation, and after reclosing is stopped using in the application of power scheduling department, and after obtaining confirming, order begins to step on bar work;
Step 4, described platform operation electrician carry insulation transmission rope and climb up electric pole to the correct position that is not less than 1m from the electrified body safe distance, fasten seat belts;
Step 5, described Ground Operation electrician cooperate described platform operation electrician that insulated platform is fixed on the position of being convenient to described platform operation electrician operation, and described platform operation electrician is transferred on the insulated platform;
Step 6, described Ground Operation electrician utilize insulation to transmit rope high voltage electroscope, cross-arm mask, insulated target, insulated target folder, lead mask are passed to described platform operation electrician one by one;
Step 7, described platform operation electrician are according to first electrified body, the principle of back earth electrode, from the near to the remote, order from top to bottom adopts described lead mask, described insulated target, insulated target folder, described cross-arm mask lead, insulator, cross-arm to be insulated cover respectively;
Step 8, cover finish after, described Ground Operation electrician utilizes insulation coaster and insulation to transmit rope insulation strut or insulated tension pole is passed to described platform operation electrician;
Step 9, described platform operation electrician install insulation strut and tackle pulley thereof, or install insulated tension pole and tackle pulley thereof, and tackle pulley is run rope and met at Ground Operation electrician control, a pull bar and the lead locking of will insulating;
Step 10, platform operation electrician open the phase conductor insulator operation position insulation of preparing to change and cover blanket, spill lead colligation position, untie lead fixed place wiring, rope is run in Ground Operation electrician traction on work commander director makes lead leave its former fixed position 200 ± 20mm;
Step 11, platform operation electrician unload insulator and pass ground back and hang on new insulator simultaneously, and are installed in original position, recover to cover;
Step 12, Ground Operation electrician control race rope cooperation platform operation electrician under work is responsible for assuming unified command of and lead are retracted to new insulator fixed position, the good lead of colligation;
Step 13, by above-mentioned steps 10 to 12 operational methods all the other are carried out wire insulation mutually and change operation;
Step 14, platform operation electrician are covered dismounting successively by covering reverse order with insulation;
Step 15, platform operation electrician return ground, and the operation electrician works in coordination on Ground Operation electrician and the bar, insulated platform is removed passed back ground;
After step 16, described work director inspect for acceptance comprehensively, report to power scheduling department, work finishes, and recovers this circuit reclosing.
The invention provides a kind of operational method of charged for replacement insulator of 35kV distribution line, it is used for charged repairing and upkeep operation to the 35kV distribution line, improved the power supply reliability of distribution network, filled up domestic blank in 35kV distribution line charged for replacement insulator operation field.
Embodiment
1, operating type: utilize insulated platform, adopt the intermediate potential method that the three-wire system distribution line is carried out insulator and change operation.
2, the staff comprises: 1 of work director, and 1 of platform operation electrician, the operation electrician is 1 on the bar, 4 of Ground Operation electricians.
3, key operation utensil
4 of 1 pair of 35KV lead of insulated platform (1.8m) masks
20 on 3 insulated target folders of rubber-covered blanket
Insulated tension pole 1 secondary insulation strut 1 pair
2 in rope is transmitted in tackle pulley 1 cover insulation
1 of cross-arm mask 1 secondary high voltage electroscope
Insulating bar 1 pair
4, safety protective tools
Insulation clothing 1 cover insulation safety cap 2 tops
2 pairs of 2 pairs of insulated shoes of 35kV insulating gloves
2 pairs in kid gloves 2 double suction hands wet with perspiration cover
2 pairs on insulation safety band
5, concrete job step
5.1, team enters the job site, the work director reads out work ticket, the task that hands over work to one's successor, explanation safety notice and clarification in certain roles;
5.2, check whether the outward appearance of safety protective tools intact? if do not have damaged, continue to adopt 5000V megohmmeter carrying out insulating properties along face and shake survey to insulation clothing, rubber-covered blanket, mask, shaking and surveying electrode spacing is 20mm, if described insulation clothing, insulated target, mask is qualified along the face insulation resistance greater than 700 megaohms, otherwise is changed; The operation electrician all puts on insulation clothing, insulation boots, insulating gloves, insulation safety cap on described platform operation electrician, the bar;
5.3, described work director checks the circuit situation, after reclosing is stopped using in the application of power scheduling department, and after obtaining confirming, order begins to step on bar work;
5.4, described platform operation electrician carries insulation and transmits rope and climb up electric pole to the correct position that is not less than 1m from the electrified body safe distance, fasten seat belts;
5.5, described Ground Operation electrician cooperates described platform operation electrician that insulated platform is fixed on the position of being convenient to described platform operation electrician operation, described platform operation electrician is transferred on the insulated platform;
5.6, described Ground Operation electrician utilizes insulation to transmit rope high voltage electroscope, cross-arm mask, insulated target, insulated target folder, lead mask are passed to described platform operation electrician one by one;
5.7, described platform operation electrician carries out electrical verification to electrified body and earthing component, confirming does not have electric leakage;
5.8, described platform operation electrician is according to first electrified body, the principle of back earth electrode, from the near to the remote, order from top to bottom adopts described lead mask, described insulated target, insulated target folder, described cross-arm mask lead, insulator, cross-arm to be insulated cover respectively;
5.9, cover finish after, described Ground Operation electrician utilizes insulation coaster and insulation to transmit rope insulated tension pole is passed to described platform operation electrician;
5.10, described platform operation electrician is installed in the club head position with the last fixture of insulated tension pole, following fixture is installed in apart from 1 meter position of last fixture, should guarantee that insulated tension pole afterbody after lifting stretches out fixture 200mm down, after the locking of insulated tension pole and lead, be mounted on the electric pole by fixture up and down; The tackle pulley band is oppositely run rope tackle block be hung on fixture, another coaster is connected with the insulated tension pole afterbody, runs rope and meets at Ground Operation electrician control;
5.11, platform operation electrician open in the insulation at phase insulator position cover blanket, untie lead fixed place wiring, Ground Operation electrician traction on work director commander is run rope lead is promoted about 200mm, and firmly;
5.12, platform operation electrician unload in the phase insulator pass ground back and hang on new insulator simultaneously, and be installed in original position, recover to cover;
5.13, the Ground Operation electrician controls and runs rope and be responsible for cooperating under the unified command platform operation electrician lead to be retracted to new insulator fixed position, the good lead of colligation in work;
5.14, middle phase insulator changes and to finish, the operation electrician cooperates platform operation electrician to pass pull bar back ground on the bar, hangs on insulation strut simultaneously;
5.15, the operation electrician is locked by the rotation shaft insulation strut one end and lead with lead on the bar, the other end is installed on the electric pole by the insulation strut hoisting frame, makes hoisting frame operating grip afterbody should be labelled to the electric pole shaft.Platform operation electrician is connected to tackle pulley on insulation strut, the electric pole, and the reverse race of band rope tackle block should be loaded on electric pole and will run rope and meet at the Ground Operation electrician;
5.16, open the one side of desiring operation and insulate mutually and cover, spill lead colligation position, untie binding wire, slowly lift lead then, the operation electrician is pulled upwardly the hoisting frame handle on the bar simultaneously, the Ground Operation electrician controls the race rope and unifies under the password the work director, and acting in agreement makes lead outwards open to ultimate range in the pole operation;
5.17, unload insulator and pass ground back and hang on new insulator simultaneously, and be installed in original position, recover to cover;
5.18, operation electrician and Ground Operation electrician cooperate with platform operation electrician lead is retracted to new insulator fixed position under work director unified command on the bar, good lead of colligation and recovery are covered;
5.19, by above-mentioned steps 5.15-5.18 operational method to the operation of another side phase demodulation, after finish mutually on both sides, remove insulation strut and pass ground back;
5.20, after three phase isolated son changes and finishes, platform operation electrician is covered insulation successively and is removed by covering reverse order;
5.21, platform operation electrician returns ground, the operation electrician works in coordination on Ground Operation electrician and the bar, insulated platform is removed passed back ground;
5.22, described Ground Operation electrician clears up various construction appliances, entrucking.
5.23, after described work director inspects for acceptance comprehensively, report to power scheduling department, work finishes, and recovers this circuit reclosing.
6, safety notice
6.1, before the operation, the work director tackles site work environment investigation, the person in charge of the technology aspect tells somebody what one's real intentions are according to field condition establishment " standardized work guiding book " and to the operating personnel.
6.2, in the operation process, the work director should confirm each operating procedure according to the requirement of " standardized work guiding book ", and unsafe operation behavior is in time prevented.
6.3, during operation, the operating personnel is to the clearance distance of adjacent electrified body, effective insulated lengths of power tool should satisfy the requirement of " electrical safe working order ", " distribution line live working technology guide rule ".
6.4, the operating personnel should insulate to all electrified bodies, earthing component in the job area by insulating bar and cover.
6.5, when taking the binding of banding insulation and lead apart, binding the end of a thread can not be oversize, in order to avoid the contact earth electrode.
6.6, the pull-up of lead and the speed put down should be evenly and slowly.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (1)

1. the operational method of a 35kV distribution line live working replacing insulator is characterized in that, by the work director, platform operation electrician, operation electrician on the bar, Ground Operation electrician four class operating personnel coordinating operations, adopt the operation of intermediate potential method, may further comprise the steps:
Step 1, team enter the job site, and the work director reads out work ticket, the task that hands over work to one's successor, explanation safety notice and clarification in certain roles;
Whether the outward appearance of step 2, inspection operating apparatus, safety protective tools is excellent, if there is breakage, then changed; Adopt megohmmeter to the carrying out insulation property respectively along face and shake survey of the insulation clothing in the described safety protective tools, insulated target, insulation resistance is qualified greater than 700 megaohms, otherwise is changed; The operation electrician puts on insulation clothing, insulation boots, insulating gloves, insulation safety cap respectively on described platform operation electrician, the bar, and described insulation clothing, insulation boots, insulating gloves, insulation safety cap all satisfy the requirement of 35KV circuit homework;
Step 3, described work director check the circuit situation, and after reclosing is stopped using in the application of power scheduling department, and after obtaining confirming, order begins to step on bar work;
Step 4, described platform operation electrician carry insulation transmission rope and climb up electric pole to the correct position that is not less than 1m from the electrified body safe distance, fasten seat belts;
Step 5, described Ground Operation electrician cooperate described platform operation electrician that insulated platform is fixed on the position of being convenient to described platform operation electrician operation, and described platform operation electrician is transferred on the insulated platform;
Step 6, described Ground Operation electrician utilize insulation to transmit rope high voltage electroscope, cross-arm mask, insulated target, insulated target folder, lead mask are passed to described platform operation electrician one by one;
Step 7, described platform operation electrician are according to first electrified body, the principle of back earth electrode, from the near to the remote, order from top to bottom adopts described lead mask, described insulated target, insulated target folder, described cross-arm mask lead, insulator, cross-arm to be insulated cover respectively;
Step 8, cover finish after, described Ground Operation electrician utilizes insulation coaster and insulation to transmit rope insulation strut or insulated tension pole is passed to described platform operation electrician;
Step 9, described platform operation electrician install insulation strut and tackle pulley thereof, or install insulated tension pole and tackle pulley thereof, and tackle pulley is run rope and met at Ground Operation electrician control, a pull bar and the lead locking of will insulating;
Step 10, platform operation electrician open the phase conductor insulator operation position insulation of preparing to change and cover blanket, spill lead colligation position, untie lead fixed place wiring, rope is run in Ground Operation electrician traction on work commander director makes lead leave its former fixed position 200 ± 20 mm;
Step 11, platform operation electrician unload insulator and pass ground back and hang on new insulator simultaneously, and are installed in original position, recover to cover;
Step 12, Ground Operation electrician control race rope cooperation platform operation electrician under work is responsible for assuming unified command of and lead are retracted to new insulator fixed position, the good lead of colligation;
Step 13, by above-mentioned steps 10 to 12 operational methods all the other are carried out wire insulation mutually and change operation;
Step 14, platform operation electrician are covered dismounting successively by covering reverse order with insulation;
Step 15, platform operation electrician return ground, and the operation electrician works in coordination on Ground Operation electrician and the bar, insulated platform is removed passed back ground;
After step 16, described work director inspect for acceptance comprehensively, report to power scheduling department, work finishes, and recovers this circuit reclosing.
CN2009103043614A 2009-07-15 2009-07-15 Live-wire operation method for replacing insulator for 35kV distribution circuit Active CN101640391B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN101640391B true CN101640391B (en) 2011-12-07

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103178469A (en) * 2013-03-20 2013-06-26 江苏省电力公司常州供电公司 Operating method for replacing suspension type porcelain bottle of straight line pole for 35-kV overhead distribution line in electrified manner
CN104113006A (en) * 2013-04-22 2014-10-22 江苏省电力公司常州供电公司 Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state
CN104113007A (en) * 2013-04-22 2014-10-22 江苏省电力公司常州供电公司 Operation method for replacing strain insulator of 35kV overhead distribution line in live state
CN105162028A (en) * 2015-07-17 2015-12-16 国网辽宁省电力有限公司辽阳供电公司 Method for replacing linear insulator of 220kV steel pipe tower in live working state
CN106410674A (en) * 2016-11-13 2017-02-15 国网湖北省电力公司咸宁供电公司 Hot-line work method for 10-kV distribution line and equipment
CN106848921A (en) * 2017-02-15 2017-06-13 河海大学 A kind of livewire work method of ultra-high-tension power transmission line
CN107134732A (en) * 2017-05-26 2017-09-05 华北电力科学研究院有限责任公司 Disconnecting switch repair method
CN107161481A (en) * 2017-07-17 2017-09-15 国网天津市电力公司 10kV insulating blanket for live-line operation folder turns take, store all-in-one

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CN101022212A (en) * 2007-03-23 2007-08-22 上海市电力公司超高压输变电公司 Live line replacing method high voltage transmission line strain insulator-string and device

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