What should I pay attention to when playing with cable hooks underground?

Underground must use a unified standard cable hook hanging, wire or rope hanging is not allowed. In the new mining face, the number of cable laying should be determined according to the actual needs in the later period, and the cable hook should be installed in place by the construction unit at one time.

2. When the working face is tunneled in two gateway, use φ 6.3 steel wire rope to hang the cable hook. The steel wire rope shall be fastened on the anchor rod at the roadway side with flower basket bolts, and fixed with not less than three clips, and the distance between the fixed points shall not exceed 50m. The steel wire rope is hung on the top steel net with at least two 16# thin steel wires every 2 meters, and the cable hook is fixed on the steel wire rope with at least two 16# thin steel wires.

3, coal mining face cable hook suspension spacing is not more than 65438+/-0.5m; The hanging height from the hole on the cable hook to the bottom plate is not less than 2.0m, and the allowable error is 50 mm. Other special requirements shall be hung according to the design requirements.

4, each unit should choose the appropriate specifications of cable hook according to the roadway construction situation, and the specifications and models of cable hook used in the same roadway must be unified.

5, the cable shall not be hung on the feng shui pipeline, shall not suffer from water spray. It is forbidden to hang anything on the cable. In principle, cables and wind pipes shall not be laid on the same side of the roadway. When it must be laid on the same side, it should be laid above the pipeline and keep a distance of more than 300 mm ..

6. Communication and signal cables should be hung on both sides of the road respectively with power cables. When restricted by conditions, communication and signal cables should be hung at a distance of more than 0/00 mm from the power cable/kloc-and should not cross each other.

7. Distance between cable hanging points: the distance between high and low voltage cables should be greater than100 mm. The distance between high voltage cables and low voltage cables should not be less than 50 mm.

8. The cable in the roadway (gateway) of the mining face must be hung horizontally and vertically, and the cable shall not cross or bend irregularly.

9. Through-wall cables shall be protected by casing, and through-wall nozzles shall be tightly sealed with flame retardant materials such as yellow mud. The outcrops on both sides of the casing should be flush with the outside of the wall, and there should be cable direction signs on both sides of the wall.

10, when the cable crosses the roadway, it should be fixed by ω-card cable tray suitable for the cable outer diameter, and the spacing should not exceed1.5m. It should be arranged neatly and reasonably, and it is forbidden to cross each other. If it is really necessary to cross the section, the tray should be fixed in layers, and the voltage level should be gradually reduced from the inside out to ensure that the mutual spacing meets the construction requirements.