1. The cabinet should not be impacted to avoid deformation of the frame, denting of the thin panel, and collision of the surface coating, which will affect the appearance.

2. The required level of channel steel for the installation of parallel cabinets (allowable error is 1 mm per meter).

3. The foundation height of the handcart cabinet should be convenient for handcarts to enter and exit, and no steps should be formed on the ground.

4. During transportation and installation, the vacuum arc extinguishing chamber should be protected.Especially when installing the main busbar on the top of the cabinet, the top of the vacuum switch should be covered with a hard plate to prevent tools and screws from falling and damaging the arc extinguishing chamber.

5. When distributing the main bus, it is necessary to connect the bus to the electrical components, and its joints should be connected reliably to avoid affecting the flow capacity.When the current is large, the joint must be lined with iron sheet.Protective agent (co