Abstract: The paper presents non-destructive ultrasonic method for investigations of long-rod insulators, operated on overhead power lines and stations. It was established correlation between the degree of C 120 porcelain material degradation and the parameters of ultrasonic wave propagation and attenuation. As example of application of the method there were presented ultrasonic examinations of two groups of insulators – 15 line and 49 station post. On the basis of the measurements advancement of ageing degradation of the material and the quality of the tested insulators were ascertained.

Keyword(s): EEEIC ; ultrasonic method ; non-destructive method ; insulator
Note: Proceedings of the 7th Int. Conference EEEIC 2008, Cottbus, 5-11.05.2008, pp. 14-17


Fulltext : http://zet10.ipee.pwr.wroc.pl/record/165/files/

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