NEC Code Reference
Practical interpretation of key NEC articles. Each guide explains what the code requires, why it matters, and how to apply it on the jobsite. Based on NEC 2023 with notes on NEC 2026 changes.
Article 210: Branch Circuits210.3 Branch Circuit RatingsArticle 220: Load Calculations220.12 General Lighting LoadsArticle 230: Services230.24 Overhead ClearancesArticle 240: Overcurrent Protection240.6(A) Standard SizesArticle 250: Grounding & BondingGrounding vs BondingArticle 300: Wiring Methods300.3 Wiring Methods by LocationArticle 310: ConductorsTable 310.16 ExplainedArticle 334: NM-B Cable (Romex)334.10 Where NM-B Is PermittedArticle 680: Swimming Pools680.26 Equipotential BondingArticle 625: EV Charging (EVSE)625.41 Continuous Load Rating