What technical requirements should be met for the laying of communication wires and cables?
1. Communication cable and wires should be laid separately from the power cable wires and away from the power cable wires.
2.Communication cables and wires in coal mine shafts and roadways shall be laid on the wall opposite the power cable wires.
3. If limited by site conditions, the communication cable wires in the wellbore can also be laid beside the power cable wires and kept at a distance of not less than 300mm. Communication cables and wires in the roadway can be laid over the power cable wires and maintained at a distance of not less than 100 mm.
4 .When the communication cable is connected to the telephone, it should be introduced from the sealing nut on the telephone junction box. A metal gasket is placed on the sheath skin of the stripped cable wire, and then a rubber sealing ring is put on, and finally the sealing nut is tightened to maintain good sealing performance.