CN102227077A - Tower arrangement structure at cable terminal - Google Patents

Tower arrangement structure at cable terminal Download PDF

Info

Publication number
CN102227077A
CN102227077A CN2011100673099A CN201110067309A CN102227077A CN 102227077 A CN102227077 A CN 102227077A CN 2011100673099 A CN2011100673099 A CN 2011100673099A CN 201110067309 A CN201110067309 A CN 201110067309A CN 102227077 A CN102227077 A CN 102227077A
Authority
CN
China
Prior art keywords
tower
cable termination
shaft tower
lightning arrester
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011100673099A
Other languages
Chinese (zh)
Inventor
张志坚
俞骏
王晓栋
陈伟嵩
杨东兴
唐正勇
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.)
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Wuxi Power Supply Co of Jiangsu Electric Power Co
Original Assignee
Wuxi Power Supply Co of Jiangsu Electric Power Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuxi Power Supply Co of Jiangsu Electric Power Co filed Critical Wuxi Power Supply Co of Jiangsu Electric Power Co
Priority to CN2011100673099A priority Critical patent/CN102227077A/en
Publication of CN102227077A publication Critical patent/CN102227077A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a tower arrangement structure, and in particular relates to a tower arrangement structure at a cable terminal. The tower arrangement structure is used for improving the safety of the cable terminal, belonging to the technical field of electrical safety. The structure comprises a line tower and a cable terminal tower at one side of the line tower, wherein the cable terminal tower is provided with a mounting plate which is fixedly provided with an arrester and a cable terminal joint; the distance L between the cable terminal joint and the arrester is 1-1.5m, thus reducing the field intensity distribution on the cable terminal joint and decreasing the occupied land resources. The structure is good in effect and stable in operation, and is safe and reliable.

Description

Cable termination shaft tower arrangement
Technical field
The present invention relates to a kind of shaft tower arrangement kind, especially a kind of cable termination shaft tower arrangement, specifically a kind of shaft tower arrangement that is used to improve cable termination safety belongs to the technical field of electric power safety.
Background technology
110kV and above high-tension cable are used rapid the rising in recent years, and cable fault quantity is also rising year by year, and a lot of high-tension cable accidents have taken place in many areas, and the requirement of strengthening quality control, minimizing cable fault rate is extremely urgent.
At present, the cable line design mainly contains multiple modes such as single loop, double loop, Two bors d's oeuveres and Two bors d's oeuveres double loop, the design that cable termination under the various different modes is arranged is of all kinds, existence influences each other the spatial placement of each parts such as cable termination is alternate, the terminal stress cone is connected with lightning arrester, downlead to Electric Field Distribution, and design did not take into full account this point in the past.Theoretically with each department practical operation situation analysis at present, each parts is in the mode difference of spatial placement, not only directly influence the safe operation of each parts, but also after a certain unit failure can take place, all can produce the secondary injury miscellaneous part or whole cable system.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of cable termination shaft tower arrangement is provided, it is simple and compact for structure, and is easy to install, and insulation effect is good, and is stable, safe and reliable.
According to technical scheme provided by the invention, described cable termination shaft tower arrangement comprises the circuit tower and is positioned at the cable termination shaft tower of described circuit tower one side; Described cable termination shaft tower is provided with mounting panel, and described mounting panel is installed with lightning arrester and tag, and the distance L between described tag and lightning arrester is 1 ~ 1.5m.
Described lightning arrester is provided with arrester discharge counter.Described lightning arrester is the dropout type lightning arrester.Described circuit tower is provided with strain insulator string.
Be installed with cross-arm formula synthetic insulator on the described circuit tower, described cross-arm formula synthetic insulator is provided with the lead fixed wire clamp corresponding to the other end that links to each other with the circuit tower.
Described mounting panel is provided with the terminal earth brace that is used for tag ground connection.Described terminal earth brace is provided with ground connection case and protective sleeve.
Advantage of the present invention: the cable termination shaft tower is provided with mounting panel, be installed with lightning arrester and tag on the mounting panel, distance L between lightning arrester and tag is set to 1 ~ 1.5m, can reduce the field strength distribution in the tag, reduced the land resource that takies, insulation effect is good, and is stable, safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the present invention includes strain insulator string 1, cross-arm formula synthetic insulator 2, lightning arrester 3, lead fixed wire clamp 4, circuit tower 5, tag 6, ground connection case 7, protective sleeve 8, arrester discharge counter 9, mounting panel 10, cable termination shaft tower 11 and terminal earth brace 12.
The cable termination reliability service must be considered the requirement that external insulation requirement, lightning protection requirement, mechanical performance requirement and convenient repairing are safeguarded, whether the main foundation of external insulation performance is for satisfying the corona discharge that does not produce under dry and the wet condition under this arrangement; Lightning protection requires main according to whether effectively protecting cable termination for lightning arrester; Mechanical performance requires according to for whether satisfying job requirement when growing, satisfying under the prerequisite of these conditions, optimum organization, thereby reach the cable termination design and installation is being satisfied under the prerequisite of service conditions, taken into account and take still less land resource, help promoting installation quality, be convenient to install, repairing is safeguarded and requirement such as antitheft, protection against the tide.
As shown in Figure 1: described cable termination shaft tower 11 is positioned at a side of circuit tower 5; the end of described cable termination shaft tower 11 is provided with fixedly connected mounting panel 10; be installed with lightning arrester 3 and tag 6 on the described mounting panel 10; the distance L that described tag 6 and lightning arrester are 3 is 1 ~ 1.5m; can effectively reduce the land occupation resource; can reduce simultaneously the electric-field intensity distribution in the tag 6, the security of operation of protective circuit terminal fitting 6.Lightning arrester 3 is provided with arrester discharge counter 9, the maintenance of lightning arrester 3 for convenience, and lightning arrester 3 is selected the dropout type lightning arrester.
Described circuit tower 5 is provided with strain insulator string 1, and the below of described strain insulator string 1 is provided with cross-arm formula synthetic insulator 2, and described strain insulator string 1 is all fixedlyed connected with circuit tower 5 with cross-arm formula synthetic insulator 2.Cross-arm formula synthetic insulator 2 is provided with lead fixed wire clamp 4 corresponding to the other end end that links to each other with circuit tower 5.Also be provided with the terminal earth brace 12 that is used for tag 6 is carried out ground connection on the cable termination shaft tower 11, described terminal earth brace 12 is provided with ground connection case 7 and protective sleeve 8.
As shown in Figure 1: the distance relation that tag 6 and lightning arrester are 3 adopts finite element analysis software to analyze, when the distance of 3 of tag 6 and lightning arresters is 1 ~ 1.5m, 3 of Chang Gui tag 6 and lightning arresters apart from 2m relatively, can effectively reduce the occupation of land resource, simultaneously, can reduce the field strength distribution of tag 6.During concrete enforcement: the diameter that increases grading ring or expansion lead-out wire radome at cable termination lead-out wire place; Recommend lightning arrester 3 to be arranged in a side near lightning surge intrusion, promptly when lightning wave is invaded, should be able to make lightning wave earlier on the arrival lightning arrester 3, the earth terminal of lightning arrester 3 is answered independent grounding, ground connection again after not recommending lightning arrester 3 and cable jacket being connected.In engineering reality, consider that in the busy section of town insulator produces blast and hurts sb.'s feelings recommendation employing composite sheath cable termination when generation punctures.The cable termination body is fixedly the time, at the scene under the situation of conditions permit, should keep a straight line, avoid crooked as far as possible, thereby the quality of guaranteeing the cable termination pole and tower foundation during this external design and installation especially along the river, prevent from along bridge and other places, causes oil impregnate, cracking defect to avoid the long-term affected by force of cable termination afterbody.

Claims (7)

1. cable termination shaft tower arrangement comprises circuit tower (5) and is positioned at the cable termination shaft tower (11) of described circuit tower (5) one sides; It is characterized in that: described cable termination shaft tower (11) is provided with mounting panel (10), described mounting panel (10) is installed with lightning arrester (3) and tag (6), and the distance L between described tag (6) and lightning arrester (3) is 1 ~ 1.5m.
2. cable termination shaft tower arrangement according to claim 1 is characterized in that: described lightning arrester (3) is provided with arrester discharge counter (9).
3. cable termination shaft tower arrangement according to claim 1 is characterized in that: described lightning arrester (3) is the dropout type lightning arrester.
4. cable termination shaft tower arrangement according to claim 1 is characterized in that: described circuit tower (5) is provided with strain insulator string (1).
5. cable termination shaft tower arrangement according to claim 1, it is characterized in that: be installed with cross-arm formula synthetic insulator (2) on the described circuit tower (5), described cross-arm formula synthetic insulator (2) is provided with lead fixed wire clamp (4) corresponding to the other end that links to each other with circuit tower (5).
6. cable termination shaft tower arrangement according to claim 1 is characterized in that: described mounting panel (10) is provided with the terminal earth brace (12) that is used for tag (6) ground connection.
7. cable termination shaft tower arrangement according to claim 6 is characterized in that: described terminal earth brace (12) is provided with ground connection case (7) and protective sleeve (8).
CN2011100673099A 2011-03-21 2011-03-21 Tower arrangement structure at cable terminal Pending CN102227077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100673099A CN102227077A (en) 2011-03-21 2011-03-21 Tower arrangement structure at cable terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100673099A CN102227077A (en) 2011-03-21 2011-03-21 Tower arrangement structure at cable terminal

Publications (1)

Publication Number Publication Date
CN102227077A true CN102227077A (en) 2011-10-26

Family

ID=44808036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100673099A Pending CN102227077A (en) 2011-03-21 2011-03-21 Tower arrangement structure at cable terminal

Country Status (1)

Country Link
CN (1) CN102227077A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743939A (en) * 2013-12-20 2014-04-23 保定天威保变电气股份有限公司 Dry-type smoothing reactor arrester light insulator counter lead-out structure
CN104242208A (en) * 2014-09-22 2014-12-24 国家电网公司 Double-circuit cable terminal steel pipe pole for overhead transmission line
CN104485619A (en) * 2014-12-10 2015-04-01 国家电网公司 Cable terminal tower

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2453559Y (en) * 2000-10-31 2001-10-10 镇江供电局 Double loop hanging wire and terminal rod combined with cable
CN2612127Y (en) * 2003-03-14 2004-04-14 无锡供电设计研究院 Double-loop overhead cable terminal station
CN201460375U (en) * 2009-07-27 2010-05-12 上海艾能电力工程有限公司 Four-loop upright umbrella type pylon
CN202004400U (en) * 2011-03-21 2011-10-05 江苏省电力公司无锡供电公司 Cable terminal support arrangement structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2453559Y (en) * 2000-10-31 2001-10-10 镇江供电局 Double loop hanging wire and terminal rod combined with cable
CN2612127Y (en) * 2003-03-14 2004-04-14 无锡供电设计研究院 Double-loop overhead cable terminal station
CN201460375U (en) * 2009-07-27 2010-05-12 上海艾能电力工程有限公司 Four-loop upright umbrella type pylon
CN202004400U (en) * 2011-03-21 2011-10-05 江苏省电力公司无锡供电公司 Cable terminal support arrangement structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743939A (en) * 2013-12-20 2014-04-23 保定天威保变电气股份有限公司 Dry-type smoothing reactor arrester light insulator counter lead-out structure
CN103743939B (en) * 2013-12-20 2016-05-11 保定天威保变电气股份有限公司 Dry smoothing reactor arrester light insulator counter deriving structure
CN104242208A (en) * 2014-09-22 2014-12-24 国家电网公司 Double-circuit cable terminal steel pipe pole for overhead transmission line
CN104485619A (en) * 2014-12-10 2015-04-01 国家电网公司 Cable terminal tower

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP. JIANGSU ELECTRIC POWER CO

Effective date: 20130313

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20130313

Address after: 214061 Jiangsu province Binhu District of Wuxi City Liangxi Road No. 12

Applicant after: Wuxi Power Supply Co., Ltd, Jiangsu Electric Power Co.

Applicant after: State Grid Corporation of China

Applicant after: Jiangsu Electric Power Company

Address before: 214061 Jiangsu province Binhu District of Wuxi City Liangxi Road No. 12

Applicant before: Wuxi Power Supply Co., Ltd, Jiangsu Electric Power Co.

C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20111026