Composite insulator often occurs in the use of certain failure and accidents, analysis and understanding of the need to be full, timely solve the problems and ensure composite insulator
s play an important role and value in use.
When there is some faults of composite insulator, according to certain rules and methods to solve and repair, give full play to the important role and value.
To introduce the following of malfunctioning of the composite insulator in solution and prevention methods, protect the insulator in the use of good value and efficiency.
Although construction as well as the problems arising in the course of transportation and storage, does not affect the safety of power grid operation, but also its potential influence should not be underestimated.
Can't rule out there may be some improper construction and transportation, damage of composite insulator has run online, also can't rule out brittle fracture of the composite insulator has occurred, some is because damaged caused by construction.
So, its countermeasure is to prevent and replacement, * to further standardize the transportation and storage of composite insulator and the construction measures, strict quality inspection before the Internet, has damaged composite insulator must not be allowed access to the Internet;
Secondly to run online composite insulator regularly patrol inspection, found that mandrel damaged insulator change in time.
Birds peck injury and damage will affect the insulator of the plug in the use of the good value and function, so in the use of composite insulator, regularly check to prevent the occurrence of important result in composite insulator for a different reason of failure.
When appear this kind of failure according to certain ways and methods to solve, to ensure good usability and value of insulator.
Since 2005, in the interregional power grid transmission line maintenance and operation, were repeatedly found the bird pecked injury, damage of the composite insulator has amounted to 92, located in henan, hubei, zhejiang and other three provinces of article 4 ac/dc lines.
Bird droppings flashover of flashover accident in second place, accounts for about 29%, every year because some of the reasons for such an accident, need special attention.
In the five major power grid has occurred, in the eastern part of the western inland and coastal.
General from the surface of the umbrella skirt and judging whether under the tower with guano remnants, should according to the laws of the activity and migration of birds around to determine.
Major risk from bird guano flashover of instantaneous discharge, adopting the top cross arm installed, the top of the composite insulator with a thorn, only big umbrella plate of porcelain insulator, etc. , have a good effect.
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