Maximum unbalanced load definition is addressed in NEC.

• A. Yes
• B. No
• C. Sometimes
• D. Never

Answer: (A)

Unbalanced loading is addressed in the NEC to make sure the sizing and protection decisions account for the fact that phase currents rarely match exactly. In a polyphase system, it's common for one phase to carry more load than another, and that imbalance causes the neutral current to be the difference between the phase currents. The NEC defines what unbalanced load means and sets rules for calculating and limiting it so feeders, neutrals, and equipment aren’t overstressed. This guidance is essential for properly sizing conductors and overcurrent devices, especially with shared neutrals and multi‑wire branch circuits, and for ensuring safety and reliability across service calculations. So the statement is true: the NEC does address maximum unbalanced load through its definitions and calculation requirements.