How is a 'tap' conductor defined according to NEC standards?

A 'tap' conductor is defined as a conductor that is connected to the load side of a disconnecting means or overcurrent device. This definition is critical in understanding the application of tap conductors within an electrical system, particularly in relation to overcurrent protection. Under the National Electrical Code (NEC), tap conductors are typically shorter than the main feeder and are used to supply power to branch circuits.

This means that a tap conductor must be connected after the overcurrent protection device (like a circuit breaker or fuse) to ensure that it is protected by the device upstream. If there were any issues or faults occurring on the tap conductor, the overcurrent device would engage to minimize the risk of damage or fire by interrupting the circuit.

Understanding this distinction is essential for electrical design and safety, as it clarifies where the tap can be safely connected without compromising overcurrent protection. The other options do not accurately define what a tap conductor is in relation to the NEC standards.