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What information is available regarding the weathering characteristics and suitability of EPDM rubber for bushings?

April 26, 2017bushings characteristics EPDM rubber suitability weathering

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What information is available regarding the weathering characteristics and suitability of EPDM rubber for bushings?

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A. We have extensive ageing test data for EPDM. The compound was formulated by GEC Henley over 30 years ago and has been used in every climate on earth. Because the EPDM bushings are over-rated for creepage by a factor of 50%, any general concerns about the suitability of EPDM and it’s weathering characteristics should be put to rest. The GVR uses 38kV creepage EPDM bushings for the 15.5kV and 27kV rated units. The 38kV GVR has EPDM bushings rated for 46kV. They are approximately 4 inches longer overall (not creepage) that the other.