| 摘要 |
<p>The present invention aims to provide an electrical insulating sheet having excellent heat resistance, electrical insulating properties, impregnating property with resin and insulating oil, mechanical strength and dimensional stability which is demanded for rotating electric machines, stationary electric machines (such as a transformer) and electric wire cables. According to the present invention, there is provided an electrical insulating sheet which uses, as a support, a woven or nonwoven fabric comprising polyester fiber and/or polyphenylene sulfide fiber, characterized in that the voids among the fibers of the support are filled with a heat resistant resin having continuous pores.</p> |
