Аннотация

The paper deals with a running research project, aiming on the se· lection of test procedures for evaluation of polymers and of a Silicon Rubber (SR) for composite hollow insulators for installation in outdoor service. The investigations ill'e focused on the validation of the agciDg resistance at simultaneous voltage and pollution layer stressing. Caused by the dynamic behaviour of SR. standardized and non-standardized procedures are applied to improve the transferability of the test results to the perfonnancc under outdoor con· ditions. The selection of test procedures is discussed, first results are introduced and some problems in the evaluation of hollow insulators with relatively large diameters arc shown.

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