Strictly speaking, there is no difference between electric wire and cable, and the national standard has not been specified explicitly, but there is still a difference between electric wire and cable. The difference between the wire and the cable is not made by the height of the rated voltage, nor by the geometrical size. In the cable industry, we used to call the products with complex process structure cables, and the ones with simple process structure wires. Generally speaking, no matter how large or small the conductor section of the cable is, the multi-core cable with sheath is called cable. However, for example, a single core of 2.5mm2 is equipped with a shielding structure and a sheath. The rated voltage is very low.
