Order Publications

Reference: ISH2015_620

Type:
ISH Collection
Title:

Mechanical properties investigation of the composite insulators in service

 

Abstracts

This paper reports the mechanical properties of 76 composite insulators of early stage that are in service for Guangdong power grid and Northeast power grid. Combining the test results, breaking forms and mechanical strength of the composite insulators with three link fittings were explained, and the mechanical properties were evaluated. There are different degrees of cracks in the core surface. The main destruction forms are different for the ends link forms of the fittings are different. The main destruction forms of inner wedge type are the ball head break, the core break and the core damage, and the proportion is 44%, 44% and 12%, respectively. For the outer wedge type, the main destruction forms are the core break, the ball head break, the core pulled off and the core damage, and the proportion is 45%, 27.5%, 25% and 2.5%, respectively. The core pulled off is the only destruction form of the sampling composite insulators. The mechanical strength of the inner wedge type insulator has a larger margin than the outer wedge type, and the dispersion is smaller.
 

File Size: 508,7 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org