H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/122, 31/156,
H01B 3/46 (2006.01) B05D 5/12 (2006.01) C08L 83/04 (2006.01) H01B 19/04 (2006.01)
Patent
CA 1207609
HIGH VOLTAGE INSULATORS Abstract A method of manufacturing an improved electrical high voltage coated insulator is described. The method involves applying and curing a one-part, room temperature curable silicone composition to the surface of an insulator, the insulator surface having a minimum designated arc resistance. The silicone composition is the product obtained by mixing in the substantial absence of moisture a specified polydimethylsiloxane fluid containing hydroxyl radicals, finely divided aluminum hydroxide filler, a silane of the formula RbSi(ON=X)4-b and an optional condensation catalyst. The composition cures on exposure to atmospheric moisture to produce a coating on the insulator that resists the development of leakage currents and flashover failure upon exposure to electrical stress, moisture, contamination, and other outdoor weathering stresses.
448866
Dow Corning Corporation
Gowling Lafleur Henderson Llp
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