Working method method for replacing 500 kV aerodynamic insulator and closed clasp plate device thereof
An aerodynamic and insulator technology, applied in the direction of overhead line/cable equipment, etc., can solve the problems of disc diameter difference, unable to use normally, etc., to achieve the effect of high efficiency, quick and convenient replacement, and simple structure
Inactive Publication Date: 2019-01-11
STATE GRID CORP OF CHINA +1
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Problems solved by technology
Due to the disc diameter difference between the conventional insulator and the large-diameter insulator, when the large-diameter insulator is damaged and needs to be replaced, it is impossible to normally use the closed card operation method widely used in conventional operations to replace the damaged large-diameter insulator
Method used
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[0031] The present invention will be described in further detail below in conjunction with the embodiments and with reference to the accompanying drawings.
[0032] A working method for replacing a 500kV aerodynamic insulator, the specific steps are as follows:
[0033] A. Climbing the tower: The personnel working at heights should first check the personal protective equipment before departure, and after arriving at the operation point, take personal safety protection measures. Then the personnel working at heights will ascend the tower to the working position, and install the second wire protection on the wire end according to the operation requirements. and the tower end;
[0034] B. Install the left upper connecting plate 3, the right upper connecting plate 5, the upper fixture 101 and the upper reinforcing fixture 7: select a conventional insulator 2 above the damaged aerodynamic insulator 9 to be replaced, and use the anti-loosening bolts and nuts Fix the left trunnion 1...
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The invention discloses a working method for replacing 500 kV aerodynamic insulator and a closed clamp plate device thereof, it is in a conventional insulator closed card. The left upper link plate, the left lower link plate, the right upper link plate, the right lower link plate, the upper reinforcement fixture and the lower reinforcement fixture, the conventional insulator closed card and the left upper link plate, the left lower link plate, the right upper link plate, the right lower link plate, the upper reinforcement fixture and the lower reinforcement fixture are connected into one body,and the left upper link plate, the left lower link plate, the right upper link plate and the right lower link plate enlarge the width of the conventional insulator closed card. Damaged aerodynamic insulators are located between the upper and lower reinforcement clamps. The damaged aerodynamic insulators can be replaced if they are no longer subjected to force. The invention can replace damaged aerodynamic insulator and conventional insulator safely and reliably, does not need to purchase special aerodynamic insulator closed card additionally, and has the characteristics of simple operation process, fast and convenient replacement, high efficiency, reliable connection and the like.
Description
technical field [0001] The invention relates to an operation method for power outage maintenance of a 500kV power grid, in particular to an operation method for replacing a 500kV aerodynamic insulator and a closed clamping plate device thereof. Background technique [0002] At present, the 500kV transmission lines in Jiangxi Province have reached more than 4,000 kilometers. Among the insulators of these transmission lines, most of them have undergone ice disaster reconstruction. The technical requirement for its transformation is to insert the conventional insulators into the aerodynamic insulators according to a certain number of rules in the whole string of conventional insulators. Due to the disc diameter difference between the conventional insulator and the large-diameter insulator, when the large-diameter insulator is damaged and needs to be replaced, it is impossible to normally use the closed card operation method widely used in conventional operations to replace the ...
Claims
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Login to View More IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 石荣辉程武良万文涛彭福先郑和东李洪胜盛敏杨舜周铀别会春欧阳筱青陈星曾灵聪陈强
Owner STATE GRID CORP OF CHINA