Flat cable having conductive thin plate covered with an insulating layer

A flat cable, comprising:

• a plurality of conductive thin plates of strip-shape arranged in parallel;
• an insulating layer covering the conductive thin plates;
• and
• a sheath protective layer covering the conductive thin plates covered with the insulating layer, wherein
• the conductive thin plate has a thickness of 0.6 mm or less and a cross-sectional width of 4 mm or more,
• the insulating layer has a thickness of 0.25 mm or more,
• the sheath protective layer has a thickness of 0.25 mm or more, and
• the flat cable is characterized by a total thickness of 3 mm or less and a cross-sectional total width of 20 mm or more,
• wherein the insulating layer comprises:
• a first insulating layer covering each of the plurality of conductive thin plates individually;
• and
• a second insulating layer covering the conductive thin plates individually covered with the first insulating layer.