it can be divided into medium and low voltage power cables (35 kV and below), high voltage cables (110 kV or more), ultra high voltage cables (275 to 800 kV) and UHV cables (1000 kV and above). In addition, it can be divided into AC cable and DC cable according to current.
the flexibility is not good, because it uses metal tube sheath, can increase the impact resistance, but the flexibility is reduced, the installation of relatively common flame-retardant cable is laborious.
Most of the wire and cable products are products with the same cross-section (cross-section) shape (ignoring the error caused by manufacturing) and long strips, which are used as features in the system or equipment to form lines or coils.
