If a branch circuit run measures more than 50 feet, what gauge wire should be used to the first outlet?

The correct choice of 10 AWG wire for a branch circuit that runs more than 50 feet ensures that the wire can adequately handle the current while minimizing voltage drop over the distance. Voltage drop becomes significant in longer runs; it can affect the performance of the devices connected to the circuit. The National Electrical Code (NEC) recommends using a conductor size that can maintain an acceptable voltage drop, typically no more than 3% of the circuit voltage for branch circuits.

Using 10 AWG wire for branch circuits ensures a lower resistance compared to smaller gauge wires, thereby reducing the voltage drop and allowing for efficient operation of electrical devices. This is particularly important when tying into the first outlet that may serve multiple loads.

The other gauges, such as 8 AWG, 12 AWG, and 14 AWG, may not be suitable for various reasons. For instance, 8 AWG is often overkill for standard household circuits and not necessary unless the circuit demands high amperage. On the other hand, 12 AWG and 14 AWG wires may result in excessive voltage drop over longer distances, leading to potential issues with device performance and safety if the wire gauge is insufficient for the load. Therefore, 10 AWG