Patent ID: 11908598
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An insulated electric wire comprising:
a conductor in which a plurality of elemental wires made of a metal material are twisted together; and
an insulation covering that covers an outer circumference of the conductor,
wherein the insulated electric wire comprises:
an exposed portion in which the insulation covering is removed from the outer circumference of the conductor;
a covered portion in which the insulation covering covers the outer circumference of the conductor, the exposed portion and the covered portion being provided adjacent to each other in a longitudinal axis direction of the insulated electric wire; and
a water-stopping portion in which gaps between the plurality of elemental wires in the exposed portion are filled with a water-stopping agent, and
at least a portion of the water-stopping agent that is in contact with the plurality of elemental wires is made of a resin material that cures upon contact with the metal material of the plurality of elemental wires,
wherein density of the metal material per unit length is higher in the exposed portion than in at least a remote area of the covered portion other than an area adjacent to the exposed portion.