With the development of science and technology, the plastic junction box has become the main junction box in the current project. Therefore, it is very important to combine the piping of the plastic junction box in the construction，The following points should be paid attention to.
1. In the construction of civil structure, the pipeline should be buried in the wall and floor, and the local grooving and laying should be fixed.
2. Finally, the minimum bending radius of the pipe is required, and the bending flatness at the bend of the pipe must meet the quality evaluation standard.
3. First of all, the connection of semi-rigid plastic pipes needs to be connected by sleeve bonding and special ends. The length of the sleeve should not be less than three times the diameter of the pipe, and the joint should be firmly bonded with adhesive.
4. When laying the pipeline, the bending should be minimized. When the length of the straight section of the line exceeds 15 meters, or there are 3 right-angle bends and the length exceeds 8 meters, a junction box should be installed in the middle.
As the so-called "small problems determine big projects", especially for projects with high quality requirements, we should pay more attention to every small link to ensure the quality of the project.