| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-layer electric insulated wire capable of satisfying a requirement of improvement in heat resistance and also having a discharge resistance property, and to provide a transformer formed by winding the electric insulated wire. Ž<P>SOLUTION: There are provided a multi-layer electric insulated wire and a transformer by using the insulated wire, the insulated wire comprising a conductor and three or more extruded insulating layers coating the conductor, and being characterized in that: resin, forming an outermost layer (A) of the insulating layers is polyphenylene sulfide resin; a resin, forming an innermost layer (B) of the insulating layers is either (1) resin obtained by mixing and cross-linking 1-20 pts.mass of a resin, containing a specified functional group to 100 pts.mass of thermoplastic linear polyester resin whose entirety or a part is formed, by combining an aliphatic alcohol component and an acid component, or (2) resin, obtained by mixing 5-40 pts.mass of an ethylene-based copolymer whose side chain has calboxylic acid or metallic base of calboxylic acid to the same; and an insulating layer (C), between the outermost layer and the innermost layer, is of polyamide resin. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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