Whether you’re installing, extending, or rewiring a circuit, finding out the wire gauge and amperage you will need is a key first step. The gauge—or size—of the wire used needs to match the circuit’s amperage rating (energy level). The higher the amperage rating, the larger the electrical wires need to be to avoid generating excess heat that can cause melted wires and even electrical fires.
Knowing how much energy your new lighting fixture, appliance, or heater will need, the type of wire your home currently uses when rewiring, and using an electrical wire size chart to ensure you have the right materials will all ensure your electrical project goes safely...
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