With your tester, check the flow of electricity at each wire before it enters the box. Using a light switch as a simple example, check each of the three wires going into the light switch. When devices in your new box don't work, you start by testing the circuit. The very cheapest one you can find at a local hardware store (or online) will work great. They tell you if electricity is flowing through 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. Analyze the incoming line part: Determine the incoming line source of the distribution box and. In this video, I'll guide you through the complete wiring diagram for a single-phase house distribution box. Good labeling of breakers is very important.
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