Installation Mode Of Distribution Box

1)The distribution box shall be installed in a concealed way. The distribution box shall be embedded in the wall. When building the wall, the reserved hole shall be about 20mm larger than the length and width of the distribution box. The reserved depth is the thickness of the distribution box plus the thickness of the plastering on the inner wall of the hole. When the distribution box is buried by masonry, the box can be fixed by filling concrete between the box and the wall.

2)The distribution box shall be installed firmly, horizontal and vertical, and the vertical deviation shall not be greater than 3mm; During concealed installation, there shall be no gap around the distribution box, the edges around the panel shall be close to the wall, and the contact part between the box and buildings and structures shall be coated with anti-corrosion paint.

3) The power line of the spiral fuse installed in the distribution box shall be connected to the terminal of the intermediate contact, and the load line shall be connected to the threaded terminal. In this way, there will be no electric shock when loading and unloading the fusible core. The porcelain plug-in fuse shall be installed vertically.

4) The AC, DC or power supply of different voltage levels in the distribution box shall have obvious signs. In the lighting distribution box, the neutral line (N line) and protective neutral line (PE line) busbars shall be set respectively, and the neutral line and protective neutral line shall be connected on the busbars without splicing and shall be numbered.