Symmetrical cable is made up of several pairs of double conductors called core wires manufactured within a protective sheath. In order to reduce interference between each pair of conductors, each pair of conductors is twisted into a twisted shape, called twisted pair (twist wire). Twisted pair consists of two copper wires with diameters of 0.32mm to 0.8mm each, twisted and insulated through various processes, divided into unshielded twisted pair (UTP) and shielded twisted pair (STP). A cable composed of multiple pairs of twisted pairs is called a symmetrical cable.
Communication cable,overhead power lines
