Small-sized cables can be supported by brackets, while rotating the cable tray to pay off. For cables with small packages in loops, manual pay-off can be used, which can be put in from one end of the outer loop, and put several loops in the positive and negative directions respectively, which is beneficial to buckle withdrawal without knotting. The horizontal section of cable laying shall be bound once every 800mm, the vertical section shall be bound once on each bracket, and the bending section shall be bound once every 200~300mm, 300~400mm in front of the control panel and 150~300mm in front of the junction box.

When the cable is laid parallel to the insulation layer, the distance should not be less than 200mm; when the cable is laid crosswise, the distance between the cable and the uninsulated hot surface should not be less than1m.. When each cable is paid out and at the end of each cable laying, it must enter the recheck procedure, that is, check the model and specification, the name of the beginning end and the name of the end of the cable, and make records.

Extended data

Cable pay-off instructions:

1, measured with a shaking table (500V) before cable laying, and the insulation resistance of the cable is greater than 1 megohm.

2. The pay-off table and every corner should be equipped with walkie-talkies to keep in touch at any time.

3. When handling the cable, the cable should not be loose and injured, and the cable reel should roll in the direction indicated by the arrow on the cable reel.

4, cable with artificial traction handling, handling personnel should stand on the same side of the cable. When handling cables, you must listen to unified orders, unified steps and even speed. No running.

Hownet-skills about measurement and lofting

Construction lofting method under the condition of hownet -RTK/ total station