Construction problems: How to solve the problem that the winding cannot be drawn out

>>>Recommendation: Reference example of wire walking in the transformation of second-hand housing

Problem description

Want to change new wires, but how can the old line fail?

problem analysis

If there are too many tracks in the same casing, they are entangled with each other, or when the corner is turned, there will be a phenomenon that is difficult to pull out.
Another situation is the poor quality of the casing itself.

This can also happen if there is a crack in the wall.

solution

1 No more than 4 threads can be threaded in each tube, and the lines must be parallel and cannot be entangled. When it comes to the line, use the distribution box and leave the access port if necessary.

2 Wire bushings To select a rigid, rigid PVC hose of good quality and hardness, able to withstand the pressure generated by burial on walls or floors.

3 Wire connectors are not allowed inside the pipe.

Hidden project

Chemical Filling

Meikewote Trade Co., Ltd. , http://www.rubber-auxiliarys.com