Multi-core cable

A multi-core cable comprising:

• two first wires;
• a twisted pair signal wire having two twisted second wires, wherein the two first wires and the second wires are twisted together to form a core;
• an outer sheath layer covering an outer periphery of the core;
• and
• a wrapping tape disposed between the core and the outer sheath layer, wherein:
• each of the two first wires includes a first conductor, and a first insulating layer covering the first conductor,
• each of the second wires includes a second conductor, and a second insulating layer covering the second conductor,
• a Young's modulus of the second insulating layer is greater than or equal to 700 MPa and less than or equal to 1600 MPa,
• a Young's modulus of the first insulating layer is smaller than the Young's modulus of the second insulating layer,
• a thickness of the first insulating layer is greater than a thickness of the second insulating layer,
• the core further includes two third wires,
• an outer diameter of each of the two third wires is smaller than an outer diameter of each of the two first wires, and is larger than an outer diameter of each of the second wires,
• each of the two third wires are disposed so as to make contact with each other,
• one third wire of the two third wires is disposed so as to make contact with one first wire of the two first wires, and
• the other third wire of the two third wires is disposed so as to make contact with the twisted pair signal wire.