1) Generally, the incoming line of power distribution box adopts five wire system, that is, a, B and C three-way phase line (the general color is yellow, green and red), one way zero line (the color is light blue) and one way ground line (the color is yellow with green stripes). Outgoing line. The Distribution box system diagram mainly includes the following parts: Incoming line part: Displays the incoming line source of the distribution box, which may be a single-line incoming line or multiple-line incoming lines (such as normal power supply and backup power supply), and marks the. Check electrical parameters: First understand the basic electrical parameters of Distribution box so that you can have a general understanding of the capacity and performance of the distribution box. The most common distribution system consists of simple radial circuits (feeders) that can be overhead, underground, or a combination. Inside, you'll find parts like circuit breakers and fuses that protect the system from problems like overloads and short circuits. It ensures that electricity flows.
[PDF Version]