The requirements for calculating certain loads are found in which NEC article?

• A. Article 220.
• B. Article 210.
• C. Article 230.
• D. Article 240.

Answer: (A)

Calculating loads for sizing conductors and equipment is addressed by NEC Article 220. This section guides how to estimate the total connected load and apply demand factors, continuous-load rules, and adjustments to determine the required ampacity of services and feeders. It covers general lighting, receptacle and small-appliance loads, fixed appliances, and how these loads are combined for different occupancy types. The other articles focus on related but different aspects: Article 210 deals with branch-circuit requirements for outlets and lighting circuits, Article 230 covers services and service equipment in a broader sense, and Article 240 governs overcurrent protection sizing. So when the question asks about the requirements for calculating loads, Article 220 is the correct reference.