Primary Distribution Box: Serves as the main distribution box for a construction site or project (usually only one). And all the switching and protective devices are installed in the distribution box. Without it, managing power would be messy, unsafe, and inefficient. In this guide, we'll explain what a power. After stepping down the voltage through the transformer's low-voltage side (0. Let's make an example for clarity: A newly constructed residential area introduces a 10kV power line to a substation. 4kV), power is distributed to a main distribution panel. A distribution board (also known as panelboard, circuit breaker panel, breaker panel, circuit breaker, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit.
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