A method for producing an insulated wire having a cross section of a desired
shape,
in which a conductor having a cross section of a desired shape is coated with an
insulating film, which method comprises: supplying a raw conductor while passing
through a rolling unit composed of at least one pair of rolling rolls that are
capable of freely rotating without a drive mechanism and that have a desired shape,
thereby forming a conductor having a cross section of a desired shape; and coating
the conductor with an insulating film.
