Composite cross-arm insulator device and method for replacing overhead transmission line
A technology of overhead transmission lines and insulators, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as no method, and achieve the effects of convenient installation and operation, reduction of power outages, and simple device structure
Active Publication Date: 2016-09-28
STATE GRID CORP OF CHINA +1
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Problems solved by technology
When replacing this kind of composite cross-arm insulator, there is no special replacement tool, and there is no proper method
Method used
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[0029] The present invention is described in further detail below in conjunction with accompanying drawing:
[0030] see Figure 1 to Figure 5 , the device of the present invention comprises a wire support frame 1, one end of the wire support frame 1 is provided with a pulley block lifting point 2 for installing a lifting wire, and the other end and the middle part are installed with a support frame for fixing the support frame on the steel pipe tower overhead ground wire cross arm. U-shaped hoop 4; a reinforced tripod 3 for improving the strength of the wire support frame 1 is arranged on the wire support frame 1; The wire support frame 1 comprises a cross bar and a connecting rod 5 vertically installed on the cross bar, the two ends of the connecting rod 5 are provided with threads, the lower end of the connecting rod 5 is installed on the cross bar through a nut, the upper end is sleeved with a connecting piece, and Secured with nuts. The cross bar is channel steel. The ...
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The present invention discloses a composite cross-arm insulator device and method for replacing an overhead transmission line. The device comprises a wire support frame which has one end provided with a pulley block lifting point for installing lifting wires and the other end provided with a U-shaped hoop configured to fix the support frame on the steel tube tower overhead grounding cross arm; and the wire support frame is provided with a reinforced tripod configured for improving the intensity of the wire support frame. The device structure is simple, the installation operation is convenient, the wires are effectively lifted and fixed, the wire shedding is avoided, and the efficiency is fully improved. The composite cross-arm insulator device and method for replacing an overhead transmission line may be used for replacing a composite cross-arm insulator for one time in the multi-loop overhead transmission line erected by the steel tube tower so as to effectively reduce the number of times of power failure, ensure the power supply reliability, realize the economic benefit and create more economic values for the society.
Description
【Technical field】 [0001] The invention belongs to the technical field of maintenance equipment for overhead transmission lines, and relates to a tool for replacing composite cross-arm insulators of overhead transmission lines. 【Background technique】 [0002] In order to ensure the reliability of the power supply of the power line, the transmission line needs to be maintained regularly, and one of the most important tasks is to replace the composite insulator, and the composite cross-arm insulator is one of the composite insulators. Composite cross-arm insulator refers to the insulator used on the steel pipe tower as a cross-arm and erected wires. When replacing this kind of composite cross-arm insulator, there is no special replacement tool and no proper method. It will adversely affect the operation and maintenance of power lines and the reliability of power supply, and affect the normal life and production of residents, municipalities, and industrial and mining enterprise...
Claims
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CPCH02G1/02
Inventor 孙鑫张凯李文群高水利陈炳勤王东育孟令增李艳军杨超向志昊
Owner STATE GRID CORP OF CHINA