Stator coil, method of manufacturing the same, and rotating electric machine

A method of manufacturing a stator coil, comprising the steps of:

• winding and laminating a first mica tape around an outer periphery of a coil conductor so that the laminated first mica tape has a thickness of 0.1 mm or more and 1 mm or less;
• winding and laminating a second mica tape around an outer periphery of the laminated first mica tape;
• impregnating a liquid thermosetting resin composition into the coil conductor having the first mica tape and the second mica tape wound therearound;
• and
• curing the liquid thermosetting resin composition by heating,
• wherein the first mica tape contains mica particles in a content of 30 g or more and 100 g or less per 1 m2 of the mica tape,
• wherein 60 mass % or more of the mica particles contained in the first mica tape pass through a JIS standard sieve having a nominal opening of 250 μm, and
• wherein 40 mass % or less of mica particles contained in the second mica tape pass through the JIS standard sieve having a nominal opening of 250 μm.