CN102646945B - Method for 500kV live replacement of composite insulators - Google Patents

Method for 500kV live replacement of composite insulators Download PDF

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Publication number
CN102646945B
CN102646945B CN201210126922.8A CN201210126922A CN102646945B CN 102646945 B CN102646945 B CN 102646945B CN 201210126922 A CN201210126922 A CN 201210126922A CN 102646945 B CN102646945 B CN 102646945B
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CN
China
Prior art keywords
insulator
leading screw
tower head
head leading
hanging hook
Prior art date
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Application number
CN201210126922.8A
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Chinese (zh)
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CN102646945A (en
Inventor
张森
伏忠奎
雷宏阳
董政
陈跃新
王雷
袁一文
刘思汗
姜坤汝
赵群
赵宏凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Electric Power Co., Ltd. Liaoyang Power Supply Company
State Grid Corp of China SGCC
Original Assignee
LIAONING ELECTRIC POWER CO Ltd LIAOYANG POWER SUPPLY Co
State Grid Corp of China SGCC
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Application filed by LIAONING ELECTRIC POWER CO Ltd LIAOYANG POWER SUPPLY Co, State Grid Corp of China SGCC filed Critical LIAONING ELECTRIC POWER CO Ltd LIAOYANG POWER SUPPLY Co
Priority to CN201210126922.8A priority Critical patent/CN102646945B/en
Publication of CN102646945A publication Critical patent/CN102646945A/en
Application granted granted Critical
Publication of CN102646945B publication Critical patent/CN102646945B/en
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Abstract

The invention relates to a method for 500kV live replacement of composite insulators, which includes the steps: firstly, mounting a secondary protector; secondly, mounting an adjustable hanging wire hook; thirdly, replacing the insulator; and fourthly, mounting a second adjustable hanging wire hook. The method for 500kV live replacement of the composite insulators is unlimited by a tower type and the length of the insulator, can be used for realizing live replacement of composite insulators of different types, in different lengths and differing greatly or excessively as compared with original composite insulators, and can adapt to various insulator types and various insulator combination modes. Two lead screws do not need to be stressed simultaneously, one lead screw is stressed while the other lead screw is used for replacing a connector, and the lead screw used for replacing the connector is stressed while the other lead screw is used for adjusting the connector until replacement is completed, so that work efficiency is improved.

Description

The method of 500kV charged for replacement synthetic insulator
Technical field
The present invention relates to a kind of method of 500kV charged for replacement synthetic insulator.
Background technology
Leading screw due to the insulated tension pole top of charged for replacement 500kV synthetic insulator lifting lead wire used promotes and pine falls apart from limited, the operation of changing synthetic insulator of traditional 500kV electric transmission line hot-line in case of different model, length and original synthetic insulator differ greatly or too much when most adopt to have a power failure process.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of 500kV charged for replacement synthetic insulator, and the method can realize charged for replacement different model, length and original synthetic insulator and differ greatly or too much synthetic insulator.
In order to solve prior art Problems existing, the technical solution used in the present invention is:
The method of 500kV charged for replacement synthetic insulator, comprises the following steps:
1. second protection device is installed: equipotential electrician enters highfield along insulated flexible ladder, is hung over by the hook of clamp buckle type secondary protector on steel tower cross-arm, and the device that will go offline is buckled on conductors on quad bundled;
2. adjustable line hanging hook is installed: tower head leading screw is arranged on steel tower cross-arm head, after adjusting insulation arm-tie and adjustable line hanging hook are assembled, adjusting insulation arm-tie is reliably connected with tower head leading screw, then is buckled on conductors on quad bundled by the equipotential electrician device that will go offline;
3. change insulator: screw or unscrew tower head leading screw to correct position, make adjustable line hanging hook bear the gravity vertically downward of conductors on quad bundled, old insulator is taken off, then leading screw is screwed or unscrews to correct position.
4. second adjustable line hanging hook is installed, tower head leading screw is adjusted to the most loose or the tightest, then the length of adjusting insulation arm-tie is regulated, make second tower head leading screw identical with the length of first adjusting insulation arm-tie with the length summation of second insulation pulling plate, and then screw or unscrew the second rhizoid thick stick, bear the gravity of conductors on quad bundled with second line hanging hook, be repeatedly used alternatingly two tower head leading screws stressed, until identical with new synthetic insulator length, i.e. installation.
The advantage that the present invention has and effect are:
The method of 500kV charged for replacement synthetic insulator of the present invention, not by tower restriction, the restriction not being subject to insulator length, can realize charged for replacement different model, length and original synthetic insulator and differ greatly or too much synthetic insulator.Multiple insulator model, multiple insulation combination form can be adapted to, two rhizoid thick sticks are without the need to simultaneously stressed, and a rhizoid thick stick is stressed, joint changed by a rhizoid thick stick, another rhizoid thick stick adjustment joint while the leading screw changing joint is again stressed, until changed, increase work efficiency.
Accompanying drawing explanation
The instrument used in the method for Fig. 1 500kV charged for replacement of the present invention synthetic insulator.
In figure: clamp buckle type secondary protector 1; Hook 11; Steel tower cross-arm 2; Go offline device 12; Conductors on quad bundled 3; Tower head leading screw 4; Adjusting insulation arm-tie 5; Adjustable line hanging hook 6; Go offline device 61; Synthetic insulator 7.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the method for 500kV charged for replacement synthetic insulator of the present invention comprises the following steps:
1. second protection device is installed: equipotential electrician enters highfield along insulated flexible ladder, hangs on steel tower cross-arm 2 by the hook 11 of clamp buckle type secondary protector 1, and the device 12 that will go offline is buckled on conductors on quad bundled 3;
2. adjustable line hanging hook is installed: tower head leading screw 4 is arranged on steel tower cross-arm head, after adjusting insulation arm-tie 5 and adjustable line hanging hook 6 are assembled, adjusting insulation arm-tie 5 is reliably connected with tower head leading screw 4, then is buckled on conductors on quad bundled 3 by the equipotential electrician device 61 that will go offline;
3. insulator is changed: according to the length of the insulator that will change, screw or unscrew tower head leading screw to correct position, make adjustable line hanging hook bear the gravity vertically downward of conductors on quad bundled, old insulator is taken off, then leading screw is screwed or unscrews to correct position.
4. second adjustable line hanging hook is installed, tower head leading screw 4 is adjusted to the most loose or the tightest, then the length of adjusting insulation arm-tie 5 is regulated, make second tower head leading screw identical with the length of first adjusting insulation arm-tie 5 with the length summation of second insulation pulling plate, and then screw or unscrew the second rhizoid thick stick, bear the gravity of conductors on quad bundled 3 with second line hanging hook, be repeatedly used alternatingly two tower head leading screws stressed, until identical with new synthetic insulator 7 length, i.e. installation.
When short for the new insulator that will change below:
1. second protection device is installed: equipotential electrician enters highfield along insulated flexible ladder, hangs on steel tower cross-arm 2 by the hook 11 of clamp buckle type secondary protector 1, and the device 12 that will go offline is buckled on conductors on quad bundled 3, prevents wire accidental in operation.
2. adjustable line hanging hook is installed: tower head leading screw 4 is arranged on steel tower cross-arm head, after adjusting insulation arm-tie 5 and adjustable line hanging hook 6 are assembled, adjusting insulation arm-tie 5 is reliably connected with tower head leading screw 4, then is buckled on conductors on quad bundled 3 by the equipotential electrician device 61 that will go offline;
3. change insulator: screw tower head leading screw 4 to correct position, make adjustable line hanging hook 6 bear the gravity vertically downward of conductors on quad bundled 3, old insulator is taken off, then tower head leading screw 4 is threaded to the tightest.
4. second adjustable line hanging hook is installed, tower head leading screw 4 is adjusted to the most loose, then the length of adjusting insulation arm-tie 5 is regulated, make second tower head leading screw identical with the length of first adjusting insulation arm-tie with the length summation of second insulation pulling plate, and then screw second tower head leading screw, bear the gravity of conductors on quad bundled with second line hanging hook, be repeatedly used alternatingly two rhizoid thick sticks stressed, until identical with new synthetic insulator length, i.e. installation.

Claims (1)

  1. The method of 1.500kV charged for replacement synthetic insulator, is characterized in that comprising the following steps:
    1. second protection device is installed: equipotential electrician enters highfield along insulated flexible ladder, is hung over by the hook of clamp buckle type secondary protector on steel tower cross-arm, and the device that will go offline is buckled on conductors on quad bundled;
    2. adjustable line hanging hook is installed: two tower head leading screws are arranged on steel tower cross-arm head, by two adjusting insulation arm-ties, adjustable line hanging hook one_to_one corresponding is assembled with two respectively, adjusting insulation arm-tie is reliably connected with tower head leading screw, then is buckled on conductors on quad bundled by the equipotential electrician device that will go offline;
    3. change insulator: screw or unscrew first tower head leading screw to correct position, make first adjustable line hanging hook bear the gravity vertically downward of conductors on quad bundled, old insulator is taken off, then first tower head leading screw is screwed or unscrew to correct position;
    4. second adjustable line hanging hook is installed, second tower head leading screw is adjusted to the most loose or the tightest, then the length of second adjusting insulation arm-tie is regulated, make second tower head leading screw identical with the length of first adjusting insulation arm-tie with the length summation of second adjusting insulation arm-tie, and then screw or unscrew second tower head leading screw, the gravity of conductors on quad bundled is born with second line hanging hook, repeatedly alternately make two tower head leading screws stressed, until identical with new synthetic insulator length, i.e. installation.
CN201210126922.8A 2012-04-27 2012-04-27 Method for 500kV live replacement of composite insulators Active CN102646945B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210126922.8A CN102646945B (en) 2012-04-27 2012-04-27 Method for 500kV live replacement of composite insulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210126922.8A CN102646945B (en) 2012-04-27 2012-04-27 Method for 500kV live replacement of composite insulators

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CN102646945A CN102646945A (en) 2012-08-22
CN102646945B true CN102646945B (en) 2015-04-22

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104113011B (en) * 2014-07-08 2017-01-11 国家电网公司 Single-string-insulator maintenance device
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
CN105743013B (en) * 2016-03-28 2017-09-15 中国南方电网有限责任公司超高压输电公司南宁局 The method of charged for replacement ± 500kV AC line anchor support insulator chains

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85204196U (en) * 1985-09-28 1986-06-11 鞍山电业局 Clamps for change straight-line whole serial insulators on live wire work
JP2005012866A (en) * 2003-06-16 2005-01-13 Sumiden Asahi Industries Ltd Jumper
CN201937206U (en) * 2010-12-07 2011-08-17 江西省电力公司超高压分公司 Universal tool for electrically replacing 500kV strain insulator string
CN202094541U (en) * 2011-06-15 2011-12-28 辽宁省电力有限公司营口供电公司 Adjustable four-bundle conductor lifting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85204196U (en) * 1985-09-28 1986-06-11 鞍山电业局 Clamps for change straight-line whole serial insulators on live wire work
JP2005012866A (en) * 2003-06-16 2005-01-13 Sumiden Asahi Industries Ltd Jumper
CN201937206U (en) * 2010-12-07 2011-08-17 江西省电力公司超高压分公司 Universal tool for electrically replacing 500kV strain insulator string
CN202094541U (en) * 2011-06-15 2011-12-28 辽宁省电力有限公司营口供电公司 Adjustable four-bundle conductor lifting device

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ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20120926

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20120926

Address after: 111000 Liaoyang City, Liaoning province Taizihe District South Street No. 81

Applicant after: Liaoning Electric Power Co., Ltd. Liaoyang Power Supply Company

Applicant after: State Grid Corporation of China

Address before: 111000 No. 81, south suburb street, Liaoning, Liaoyang

Applicant before: Liaoning Electric Power Co., Ltd. Liaoyang Power Supply Company

C14 Grant of patent or utility model
GR01 Patent grant