Rail transit is a general term for fast and large-capacity public transportation that is usually powered by electric energy and adopts wheel-rail operation. Including common railways, subways, light rails and trams, maglev track systems, etc.

In the current subway project, there are many demands on the quantity and types of distribution boxes and cabinets, which are one of the key equipment for the electrical system and even the whole system of dismantling. Therefore, the product quality and installation of distribution boxes and cabinets will be affected It directly affects the safety of the function box of the subway project.