Enamel resin-insulating laminate, inverter surge-resistant insulated wire using the same and electric/electronic equipment

An inverter surge-resistant insulated wire, comprising:

• a conductor;
• and
• an enamel resin-insulating laminate that has a foamed region including cells and a non-foamed region including no cells on at least one surface of the foamed region on the conductor,
• wherein a porosity of the foamed region in the enamel resin-insulating laminate is 25% or more and 70% or less,
• wherein the foamed region is configured such that a non-cell layer including no cells has cell layers having cells on both surface sides of the non-cell layer,
• wherein a thickness of each non-cell layer is larger than a thickness of a partition wall among the cells, and 5 to 60% of a thickness of the foamed region,
• wherein a thickness ratio t/T is from 0.09 to 0.6 when T is a thickness of the foamed region and t is a thickness of all non-cell layers in the foamed region, and
• wherein at least the cell layer in the foamed region is formed of a thermosetting resin.