CN104113006A - Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state - Google Patents
Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state Download PDFInfo
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- CN104113006A CN104113006A CN201310141811.9A CN201310141811A CN104113006A CN 104113006 A CN104113006 A CN 104113006A CN 201310141811 A CN201310141811 A CN 201310141811A CN 104113006 A CN104113006 A CN 104113006A
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Abstract
The invention provides an operation method for replacing a linear rod angle steel cross arm of a 35kV overhead distribution line in a live state. The method is an intermediate-potential insulating glove operation method in which a linear rod angle steel cross arm is replaced by use of an insulating bucket arm truck, and the method is jointly implemented by a person in charge of operation, an operation electrician on ground and an in-bucket operation electrician. The method mainly comprises the following steps: stop of maintenance line reclosing is applied; the operation workers detect tools; the in-bucket operator wears insulated equipment and enters an electric field through an insulating bucket arm truck; insulating shield is done; an insulating cross arm is mounted; a linear rod angle steel cross arm is replaced; the insulating cross arm is removed; the shield is removed; the operators leave the electric field; and maintenance line reclosing is recovered. The operation method of the invention saves human resources, is convenient and fast in emergence maintenance, high in efficiency, and flexible and convenient in field switching, obviously improves guarantee on personal safety of the operators, can conveniently realize replacement of a linear rod angle steel cross arm of a 35kV overhead distribution line in a live state, and has significant economic and social benefits.
Description
Technical field
The present invention relates to electric power system high-tension distributing line upkeep operation method, be specifically related to a kind of operational method of 35kV overhead distribution replacing linear pole under live state angle cross arm.
Background technology
35kV circuit belongs to an important part in China's distribution line, and in China, some area application that load is large and radius of electricity supply is large are wider.35kV circuit has the advantages such as the large and line loss of transmission capacity is little than 10kV distribution line, but the problems such as equipment is many, insulation level is low, direct user oriented that 35kV circuit has, under atmospheric over-voltage, filth or other extraneous factor effects, easily break down, once distribution line breaks down, user's normal production and life will directly be affected.35kV circuit is more similar in appearance to the above transmission line of 110kV in the structures such as shaft tower, straight line pole angle cross arm, and its straight line pole angle cross arm easy break-down, needs to change after breaking down.Comparatively conventional equal potential working method at present still adopting transmission line when the operation of 35kV circuit hotline maintenance, because the relative transmission line in 35kV overhead line structures gap is less, adopt equal potential working method to bring more serious potential safety hazard to operating personnel's personal safety, thereby, current in 35kV line maintenance process, unless last resort generally can not carried out live line working, conventionally all adopt interruption maintenance mode.And employing interruption maintenance mode, but make to cause because of the defect of a certain node on a certain equipment or circuit the power failure that forces in whole piece circuit or certain region, thereby have a strong impact on enterprises and institutions normal production work order, affect resident's normal life, bring greater loss to economy and social development.Therefore, improve current 35kV power distribution line maintenance and change the current interruption maintenance method of straight line pole angle cross arm, adopt hotline maintenance operational method, to improve 35kV distribution line safety operation level and power supply reliability, to facilitating economic and social development, there is greater significance.
In recent years, the operational method of 35kV distribution line replacing insulator under electrified has been shown in exploration and research.If publication number is CN101640391A, name is called the Chinese patent literature of " operational method that 35kV distribution line live working is changed insulator ", a kind of operational method of replacing insulator under electrified is disclosed, the method can implement straight line pin type (or porcelain pole arm) insulator (being fixed on the adjunct on angle cross arm) of 35kV distribution line to change operation in the situation that not having a power failure, and the method has certain referential to the operational method of 35kV overhead distribution replacing linear pole under live state angle cross arm.But at least there is following deficiency in the method: the one, need at least 7 staff's coordinating operations of 4 class, and human resources used are more; The 2nd, in operation process, need to build the insulated platform of operation use, when wasting time and energy and changing next insulator, transition inconvenience, needs again again to build, and has a strong impact on speed and the efficiency of repairing; The 3rd, on bar, operation electrician needs manpower climbing line bar, and efficiency is lower and increase unsafe factor; The 4th, in operation process, Work tool needs mounting auxiliary and is coordinated with manpower and transmit one by one with operating personnel on bar by ground, and operating efficiency is lower and dangerous.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, provide a kind of need be less with manpower, without building operating platform,, repairing efficiency higher 35kV overhead distribution replacing linear pole under live state angle cross arm operational method convenient without operation electrician pole-climbing, the transmission of operation Work tool and transition, improve repairing speed and the efficiency of 35kV overhead distribution, improve safety operation level and the power supply reliability of 35kV distribution line.
Technical scheme of the present invention is: 35kV overhead distribution replacing linear pole under live state angle cross arm operational method of the present invention, adopt intermediate potential method, utilize aerial lift device with insulated arm and coordinate enforcement operation by operation electrician in operation director, ground electrician and insulation bucket, comprise the following steps:
1. the director that works confirms that operation field meets operating condition requirement, to the inactive reclosing of power scheduling application, is confirmed post command and starts operation; Work director commands aerial lift device with insulated arm to enter after solution space, puts down supporting leg, the vehicle ground of aerial lift device with insulated arm and does empty bucket test;
2. use megohmmeter along face, to carry out respectively insulation property detection to the insulating material part in operating apparatus, insulation clothing in safety protective tools, insulated target: if insulation resistance is greater than 700 megaohms for qualified, otherwise to be changed;
3. insulation clothing, insulation boots, insulating gloves and the insulation safety cap that the interior operation electrician wearing of insulation bucket meets the requirement of 35kV line live-line work enters the insulation bucket of aerial lift device with insulated arm; In insulation bucket, electrician operates aerial lift device with insulated arm insulation bucket is put to apart from 20cm place, ground, the little arm of installing insulating check trailer system under ground electrician cooperation; And under coordinating, ground electrician packs required wire mask, insulator cover, insulated target, cross arm shielding cover and the insulating cord of operation into the bucket that insulate;
4. the interior operation electrician of bucket of insulating operates aerial lift device with insulated arm makes insulation bucket progress into setting electric field, and according to the principle of first electrified body, rear earth electrode and order from the near to the remote, from top to bottom, adopt wire mask, insulator cover, insulated target, cross arm shielding cover respectively wire, insulator, cross-arm to be insulated and covered;
5. the interior operation electrician installing insulating cross-arm in appropriate location below angle cross arm to be replaced of bucket insulate; In bucket, operation electrician obtains work director and permits the insulate suspension hook of little arm of rear operation to hook wire and make it slightly stressed, then take limit phase conductor insulated target apart and expose wiring, wiring is removed, movable conducting wire, to insulator crossarm wire casing, is closed insurance and is insulated and covered in wire and insulator crossarm wire casing place; Adjust insulation bucket position to opposite side wire, complete the transfer of opposite side wire and insulation masking work;
The insulation of 6. removing on cross-arm to be replaced is covered, and unclamps cross-arm fixture to be replaced, pulls down cross-arm to be replaced and reaches ground with the little arm of insulation;
7. with the little arm of insulation, new angle cross arm is hung on and fix in the former angle cross arm of electric pole position, the appended porcelain pole arm of new angle cross arm is fixed on new angle cross arm, and with insulated target, porcelain bottle cover, cross-arm cover, carry out to insulate and cover;
8. in insulation bucket, operation electrician enters a side operation lead location, dismounting insulator crossarm and the insulation of wire casing place are covered, open the insurance of insulator crossarm wire casing, utilize the little arm suspension hook of insulation that wire is sling, put into the appended porcelain pole arm wire casing of the angle cross arm of having changed, recovery wiring fixedly Ji bearing recovery insulation covers; Adjust insulation bucket position to opposite side wire, complete opposite side wire and recover fixing;
9. remove insulator crossarm;
10. in insulation bucket operation electrician by with step 4. the described orderly release insulation of covering reversed in order cover;
(11) in insulation bucket, operation electrician operates aerial lift device with insulated arm and withdraws from electric field, returns to ground;
(12) after the director that works inspects for acceptance, to power scheduling, report, work complete, application recovers this circuit re-switching.
The present invention has positive effect: (1) adopts 35kV overhead distribution replacing linear pole under live state angle cross arm operational method of the present invention, can realize the straight line pole angle cross arm of 35kV overhead distribution is carried out to charged for replacement, without adopting in prior art, under common power failure mode used, change, economic and social benefit is remarkable.(2) method of the present invention, only needs operation director, ground electrician and the interior electrician of insulation bucket totally 3 personnel's coordinating operations, and human resources used greatly reduce; (3) adopt aerial lift device with insulated arm to carry out operation, change operating personnel's operation in insulation bucket of straight line pole angle cross arm, without the insulated platform of building operation use, operation electrician is without pole-climbing, in place convenient and swift.(4) in operation process, needed Work tool is within ground pack the insulation bucket of aerial lift device with insulated arm into, and without the transmission of carrying out Work tool, time saving and energy saving in operation process, operating efficiency and fail safe greatly improve.(5) utilize aerial lift device with insulated arm transition when changing next straight line pole angle cross arm flexible, and improved greatly speed and the efficiency of repairing operation, thereby improved operation level and the power supply reliability of supply line.(6) operation electrician's personal safety guarantee is significantly improved.
Accompanying drawing explanation
Fig. 1 is the flow chart of 35kV overhead distribution replacing linear pole under live state angle cross arm operational method of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
See Fig. 1, the 35kV overhead distribution replacing linear pole under live state angle cross arm operational method of the present embodiment, is that a kind of aerial lift device with insulated arm, employing intermediate potential insulating gloves working system utilized changed operation to 35kV overhead distribution straight line pole angle cross arm.
Operating personnel comprises: in operation director, Ground Operation electrician and insulation bucket, operation electrician is each 1.
Operation Work tool mainly comprises: wire mask, insulator cover, insulated target, cross arm shielding cover and insulating cord, insulator crossarm, safeties.
Safety protective tools mainly comprises: a complete set of protective device that operation electrician dresses: as insulation clothing, insulation boots, insulating gloves and insulation safety cap etc.
Before operation, need to carry out corresponding preparation.Preparation mainly contains:
A, operation director survey operation field, fill in construction and survey list, and checking computations wire vertical load is determined lifting wire mode, determine operation scheme and write job instruction and Preventive Control of Dangerous Spot card according to surveying content;
B, team enter job site, and operation director reads out work ticket, the task that hands over work to one's successor, explanation Preventive Control of Dangerous Spot measure clarification in certain roles.
Operational method mainly comprises the following steps:
1. the director that works confirms that operation field meets operating condition requirement, to the inactive reclosing of power scheduling application, is confirmed post command and starts operation; Work director commands aerial lift device with insulated arm to enter after solution space, puts down supporting leg, the vehicle ground of aerial lift device with insulated arm and does empty bucket test;
2. use megohmmeter along face, to carry out respectively insulation property detection to the insulating material part in operating apparatus, insulation clothing in safety protective tools, insulated target: if insulation resistance is greater than 700 megaohms for qualified, otherwise to be changed;
3. insulation clothing, insulation boots, insulating gloves and the insulation safety cap that the interior operation electrician wearing of insulation bucket meets the requirement of 35kV line live-line work enters the insulation bucket of aerial lift device with insulated arm; In insulation bucket, electrician operates aerial lift device with insulated arm insulation bucket is put to apart from 20cm place, ground, the little arm of installing insulating check trailer system under ground electrician cooperation; And under coordinating, ground electrician packs required wire mask, insulator cover, insulated target, cross arm shielding cover and the insulating cord of operation into the bucket that insulate;
4. the interior operation electrician of bucket of insulating operates aerial lift device with insulated arm makes insulation bucket progress into setting electric field, and according to the principle of first electrified body, rear earth electrode and order from the near to the remote, from top to bottom, adopt wire mask, insulator cover, insulated target, cross arm shielding cover respectively wire, insulator, cross-arm to be insulated and covered;
5. the interior operation electrician installing insulating cross-arm in appropriate location below angle cross arm to be replaced of bucket insulate; In bucket, operation electrician obtains work director and permits the insulate suspension hook of little arm of rear operation to hook wire and make it slightly stressed, then take limit phase conductor insulated target apart and expose wiring, wiring is removed, movable conducting wire, to insulator crossarm wire casing, is closed insurance and is insulated and covered in wire and insulator crossarm wire casing place; Adjust insulation bucket position to opposite side wire, complete the transfer of opposite side wire and insulation masking work;
The insulation of 6. removing on cross-arm to be replaced is covered, and unclamps cross-arm fixture to be replaced, pulls down cross-arm to be replaced and reaches ground with the little arm of insulation;
7. with the little arm of insulation, new angle cross arm is hung on and fix in the former angle cross arm of electric pole position, the appended porcelain pole arm of new angle cross arm is fixed on new angle cross arm, and with insulated target, porcelain bottle cover, cross-arm cover, carry out to insulate and cover;
8. in insulation bucket, operation electrician enters a side operation lead location, dismounting insulator crossarm and the insulation of wire casing place are covered, open the insurance of insulator crossarm wire casing, utilize the little arm suspension hook of insulation that wire is sling, put into the appended porcelain pole arm wire casing of the angle cross arm of having changed, recovery wiring fixedly Ji bearing recovery insulation covers; Adjust insulation bucket position to opposite side wire, complete opposite side wire and recover fixing;
9. remove insulator crossarm;
10. in insulation bucket operation electrician by with step 4. the described orderly release insulation of covering reversed in order cover;
(11) in insulation bucket, operation electrician operates aerial lift device with insulated arm and withdraws from electric field, returns to ground;
(12) after the director that works inspects for acceptance, to power scheduling, report, work complete, application recovers this circuit re-switching.
In sum, adopt the 35kV overhead distribution replacing linear pole under live state angle cross arm operational method of the present embodiment, can realize the straight line pole angle cross arm of 35kV overhead distribution is carried out to charged for replacement, without adopting in prior art, under common power failure mode used, change, economic and social benefit is remarkable; Only need operation director, ground electrician and the interior electrician of insulation bucket totally 3 personnel's coordinating operations, human resources used greatly reduce; Adopt aerial lift device with insulated arm to carry out operation, change operating personnel's operation in insulation bucket of straight line pole angle cross arm, without the insulated platform of building operation use, operation electrician is without pole-climbing, in place convenient and swift; In operation process, needed Work tool is within ground pack the insulation bucket of aerial lift device with insulated arm into, and without the transmission of carrying out Work tool, time saving and energy saving in operation process, operating efficiency and fail safe greatly improve; Utilize aerial lift device with insulated arm transition when changing next straight line pole angle cross arm flexible, and improved greatly speed and the efficiency of repairing operation, thereby improved operation level and the power supply reliability of supply line; Operation electrician's personal safety guarantee is significantly improved.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and variation and obtain the corresponding technical scheme being equal to, therefore all technical schemes that are equal to all should be included into scope of patent protection of the present invention.
Claims (1)
1. a 35kV overhead distribution replacing linear pole under live state angle cross arm operational method, it is characterized in that: adopt intermediate potential method, utilize aerial lift device with insulated arm and coordinate enforcement operation by operation electrician in operation director, ground electrician and insulation bucket, comprise the following steps:
1. the director that works confirms that operation field meets operating condition requirement, to the inactive reclosing of power scheduling application, is confirmed post command and starts operation; Work director commands aerial lift device with insulated arm to enter after solution space, puts down supporting leg, the vehicle ground of aerial lift device with insulated arm and does empty bucket test;
2. use megohmmeter along face, to carry out respectively insulation property detection to the insulating material part in operating apparatus, insulation clothing in safety protective tools, insulated target: if insulation resistance is greater than 700 megaohms for qualified, otherwise to be changed;
3. insulation clothing, insulation boots, insulating gloves and the insulation safety cap that the interior operation electrician wearing of insulation bucket meets the requirement of 35kV line live-line work enters the insulation bucket of aerial lift device with insulated arm; In insulation bucket, electrician operates aerial lift device with insulated arm insulation bucket is put to apart from 20cm place, ground, the little arm of installing insulating check trailer system under ground electrician cooperation; And under coordinating, ground electrician packs required wire mask, insulator cover, insulated target, cross arm shielding cover and the insulating cord of operation into the bucket that insulate;
4. the interior operation electrician of bucket of insulating operates aerial lift device with insulated arm makes insulation bucket progress into setting electric field, and according to the principle of first electrified body, rear earth electrode and order from the near to the remote, from top to bottom, adopt wire mask, insulator cover, insulated target, cross arm shielding cover respectively wire, insulator, cross-arm to be insulated and covered;
5. the interior operation electrician installing insulating cross-arm in appropriate location below angle cross arm to be replaced of bucket insulate; In bucket, operation electrician obtains work director and permits the insulate suspension hook of little arm of rear operation to hook wire and make it slightly stressed, then take limit phase conductor insulated target apart and expose wiring, wiring is removed, movable conducting wire, to insulator crossarm wire casing, is closed insurance and is insulated and covered in wire and insulator crossarm wire casing place; Adjust insulation bucket position to opposite side wire, complete the transfer of opposite side wire and insulation masking work;
The insulation of 6. removing on cross-arm to be replaced is covered, and unclamps cross-arm fixture to be replaced, pulls down cross-arm to be replaced and reaches ground with the little arm of insulation;
7. with the little arm of insulation, new angle cross arm is hung on and fix in the former angle cross arm of electric pole position, the appended porcelain pole arm of new angle cross arm is fixed on new angle cross arm, and with insulated target, porcelain bottle cover, cross-arm cover, carry out to insulate and cover;
8. in insulation bucket, operation electrician enters a side operation lead location, dismounting insulator crossarm and the insulation of wire casing place are covered, open the insurance of insulator crossarm wire casing, utilize the little arm suspension hook of insulation that wire is sling, put into the appended porcelain pole arm wire casing of the angle cross arm of having changed, recovery wiring fixedly Ji bearing recovery insulation covers; Adjust insulation bucket position to opposite side wire, complete opposite side wire and recover fixing;
9. remove insulator crossarm;
10. in insulation bucket operation electrician by with step 4. the described orderly release insulation of covering reversed in order cover;
(11) in insulation bucket, operation electrician operates aerial lift device with insulated arm and withdraws from electric field, returns to ground;
(12) after the director that works inspects for acceptance, to power scheduling, report, work complete, application recovers this circuit re-switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141811.9A CN104113006A (en) | 2013-04-22 | 2013-04-22 | Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141811.9A CN104113006A (en) | 2013-04-22 | 2013-04-22 | Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state |
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| CN104113006A true CN104113006A (en) | 2014-10-22 |
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| CN201310141811.9A Pending CN104113006A (en) | 2013-04-22 | 2013-04-22 | Operation method for replacing linear rod angle steel cross arm of 35kV overhead distribution line in live state |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538888B (en) * | 2014-12-03 | 2017-03-29 | 国家电网公司 | A kind of distribution line straight line pole cross-arm charged for replacement method |
| CN112627623A (en) * | 2020-12-03 | 2021-04-09 | 国网辽宁省电力有限公司锦州供电公司 | Method for replacing telegraph pole in electrified manner |
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| CN101640391A (en) * | 2009-07-15 | 2010-02-03 | 武汉科瑞德电力科技有限公司 | Live-wire operation method for replacing insulator for 35kV distribution circuit |
| CN102185265A (en) * | 2011-05-13 | 2011-09-14 | 四川省电力公司绵阳电业局 | Construction method for replacing cross arm of 35kV line linear rod |
| JP2012023866A (en) * | 2010-07-14 | 2012-02-02 | Chugoku Electric Power Co Inc:The | Fall prevention device of clamp type ammeter, and attaching method of clamp type ammeter |
| CN102611035A (en) * | 2012-03-15 | 2012-07-25 | 福建省电力有限公司三明电业局 | Special tool and method for charged replacement of middle-phase tension insulator |
| CN103001142A (en) * | 2012-09-03 | 2013-03-27 | 辽宁省电力有限公司鞍山供电公司 | Operation method for on-load replacing of 10kV pole-mounted disconnector |
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2013
- 2013-04-22 CN CN201310141811.9A patent/CN104113006A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101640391A (en) * | 2009-07-15 | 2010-02-03 | 武汉科瑞德电力科技有限公司 | Live-wire operation method for replacing insulator for 35kV distribution circuit |
| JP2012023866A (en) * | 2010-07-14 | 2012-02-02 | Chugoku Electric Power Co Inc:The | Fall prevention device of clamp type ammeter, and attaching method of clamp type ammeter |
| CN102185265A (en) * | 2011-05-13 | 2011-09-14 | 四川省电力公司绵阳电业局 | Construction method for replacing cross arm of 35kV line linear rod |
| CN102611035A (en) * | 2012-03-15 | 2012-07-25 | 福建省电力有限公司三明电业局 | Special tool and method for charged replacement of middle-phase tension insulator |
| CN103001142A (en) * | 2012-09-03 | 2013-03-27 | 辽宁省电力有限公司鞍山供电公司 | Operation method for on-load replacing of 10kV pole-mounted disconnector |
Non-Patent Citations (1)
| Title |
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| 应伟国: "《10kV带电作业典型操作详解》", 30 March 2012, 中国电力出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538888B (en) * | 2014-12-03 | 2017-03-29 | 国家电网公司 | A kind of distribution line straight line pole cross-arm charged for replacement method |
| CN112627623A (en) * | 2020-12-03 | 2021-04-09 | 国网辽宁省电力有限公司锦州供电公司 | Method for replacing telegraph pole in electrified manner |
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Address after: 213003 No. 27, West Front Street, Changzhou, Jiangsu Applicant after: State Grid Jiangsu Electric Power Company, Changzhou Power Supply Company Applicant after: STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant after: State Grid Corporation of China Address before: 213000 Tianning District, Jiangsu, Changzhou, No. 27 Applicant before: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Applicant before: Jiangsu Electric Power Company Applicant before: State Grid Corporation of China |
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Application publication date: 20141022 |
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