Properties of various magnet wires for hermetic motors

1. Compared with conventional wires used for hermetic motors, our newly developed modified polyesterimide wire has excellent properties, especially dielectric strength after repeated blister cycles and overload resistance after soaking in R-22. 2. The bondable modified polyesterimide wire with our newly developed thermosetting resin as a bonding cement seems to have properties as good as the wire with conventionally used varnish for hermetic motors.