INSULATED WIRE AND COIL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an insulated wire which has a high partial discharge starting voltage even under a high-temperature environment, and a coil using the same.SOLUTION: The insulated wire comprises a conductor and a low dielectric constant insulating film on the outer peripheral side of the conductor, which contains an imide structural component having a dielectric constant of 3.2 or less. The low dielectric constant insulating film is constituted of a polyimide resin having a repeating unit of a specific structure.