Signal control cable for intelligent numerical control system
2014
The utility model discloses a signal control cable for an intelligent numerical control system, and the signal control cable belongs to the field of cables and cable technology. The signal control cable comprises a cable core, a shielding layer, an isolating layer and a sheath layer, wherein the cable core comprises wire pairs, a wrapping layer and a filling layer; the signal control cable is characterized in that the number of the wire pairs is seven, three out of the seven wire pairs are arranged in a linear shape and attached to one another, two out of the rest four wire pairs form an invertedly splayed positional relation and are arranged above the three wire pairs which are arranged in a linear shape, the rest two wire pairs form a splayed positional relation and are arranged below the three wire pairs which are arranged in a linear shape, each wire pair is composed of two twisted leads, each lead comprises a conductor and a conductor insulating covered layer, the conductors are tinned fine-copper-wire-twisted conductors, the outmost layer of each twisted conductors is twisted toward the left, the twisting directions between layer and layer are opposite, and each conductor insulating covered layer and the sheath layer are made of lead-free PVC. The signal control cable can enhance the compression resistance, torsion resistance and flexure resistance, has good flexibility, cannot cause the phenomenon of rupture, and is green and environmentally friendly.
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