Conference,

NEW EXPERIENCES WITH COMPOSITE INSULATORS

, , , , , and .
(1998)

Abstract

The authors of this article are working for the companies who :first manufactured and applied composite longrod insuIators and composite hollow insulators in the high voltage technology. Now there are more than 30 and 16 years respectively of experience, and the non ceramic inSulator technology convinced with universal possibilities in various applications of high voltage systems. This paper describes the development of the insulator constructio~ especially changes in the application of the silicone rubber (SiR) housing. With an example of hollow insulators, it is reported about todays' mechanical and electrical design methods. A presentation of the good results from testing and service includes infonnation about leakage currents, ESDD (Equivalent Salt Deposite Density) measurements and the influence of microorgansim vegetation on insulators. A special chapter deals 'with research activities due to the hydrophobic properties of SiR and its lifetime.

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