Due to the large outer diameter of the power cable, transportation and laying are difficult, and the power cable has strict requirements on the turning radius.
The wire and cable used for the information transmission system mainly includes local telephone cable, television cable, electronic cable, radio frequency cable, optical fiber cable, data cable, electromagnetic wire, power communication or other composite cable.
Allowable stress at room temperature, copper cable is 7~28% higher than aluminum cable. Especially the stress at high temperatures, the difference between the two is even more distant.
Most of the wire and cable products are products with the same cross-section (cross-section) shape (ignoring manufacturing-related errors) and long strips, which are used as features in the system or equipment to form lines or coils. Determined.
The outermost layer of the power cable is generally a rubber or rubber composite sleeve. The function of this layer is to insulate and protect the cable from damage.
