INSULATING WINDING WIRE HAVING CORONA RESISTANCE

摘要

The present invention relates to an insulating winding wire and, more particularly, to an insulating winding wire having corona resistance that has an insulation coating excellent not only in corona resistance but also in adhesion and flexibility.

主权项

1. An insulating winding wire having corona resistance, comprising a conductor and an insulation coating,
the insulation coating comprising a basal layer applied to cover the conductor and an outer layer applied to cover the basal layer, the basal layer comprising at least one resin selected from the group consisting of polyvinylformal resin, polyurethane resin, heat-resistant polyurethane resin, polyester resin, polyester imide resin, polyamide imide resin, polyimide resin and polyamide resin, the basal layer comprising 5 to 15 parts by weight of inorganic insulation particles and 1 to 3 parts by weight of an adhesive agent with respect to 100 parts by weight of the resin, the basal layer having a thickness 70 to 80% of the thickness of the insulation coating, the outer layer comprising at least one resin selected from the group consisting of polyvinylformal resin, polyurethane resin, heat-resistant polyurethane resin, polyester resin, polyester imide resin, polyamide imide resin, polyimide resin and polyamide resin.