| 摘要 |
<p>A multilayer insulating wire having two or more extrusion covering insulating layers formed on a conductor directly or through a layer, or formed outside a conductor or a multi-conductor wire constituted by bundling a plurality of insulated conductors. At least one of the insulating layers is formed of an intimate mixture of 100 parts by weight of a polyether sulfone resin and 10 to 100 parts by weight of an inorganic filler. A transformer produced by using such multilayer insulated wires are also disclosed. The transformer has a heat resistance of at least the F-grade (155 °C) conforming to the IEC 950 Standards, and excellent electric characteristics even at high frequencies. The transformer does not lose the electric characteristics even at high frequencies, and is not affected by heat.</p> |
