| abstract |
Electrical devices that are impregnated with a dielectric fluid, that is substantially free from water, having a high level of unsaturation and a low viscosity, are disclosed. This dielectric fluid is a reaction product of a siloxane and a silane. The silane has the general formula RaR'b Si(OX)4-a-b wherein R is selected from the group consisting of hydrogen, substituted saturated hydrocarbon radicals, and unsubstituted saturated hydrocarbon radicals, R' is selected from the group consisting of substituted and unsubstituted unsaturated hydrocarbon radicals, X is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl and acyl radicals, a has a value of 0 to 3, b has a value of 0 to 3, with a+b having a value of 0 to 3. |