Summary:1. The cable consists of 2 or 4 insulated conductors twisted into a 2-wire group or a 4-wire group with an appropriate twist. For the 4-wire group, wh...
1. The
cable consists of 2 or 4 insulated conductors twisted into a 2-wire group or a 4-wire group with an appropriate twist. For the 4-wire group, when viewed from the cross section, when the 4 wires are in a square shape, we call it a star-quad 4-wire group, in which the 2 wires on the diagonal form a loop.
2. When first twisted into two 2-wire groups, and then twisted with each other to form 4 wires, we call it a double-twisted pair of 4-wire groups.
3. Layer twist type: twist several wire groups into a cable core in layers.
4. Unit type: First twist several wire groups into independent units, and then twist several units into cable cores.
Outside the wire group, it is often marked by different color ties to distinguish different wire groups.
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