National code reference

Electrical code topics for project planning

Use these guides to understand which code questions to take to an electrician and the local permit authority. Each guide links to the official NFPA material it summarizes.

Not a code-book substitute. These pages do not reproduce the NEC and do not establish the edition or amendments adopted at a project address.

NEC Article 625NEC EV charging equipment requirementsHow NEC Article 625 fits into planning an EV charging circuit and the questions to take to the permit authority and electrician.NEC Article 220NEC service and feeder load calculationsWhy a service or feeder decision needs an Article 220 load calculation rather than a calculator result alone.NEC 625.42Continuous loads and EV chargingHow the NEC treatment of EV charging as a continuous load affects the questions asked during circuit planning.NEC 625.54GFCI requirements for EV chargingWhere NEC 625.54 enters an EV charging design and why the equipment connection method matters.NEC 625.42EV charging load managementHow NEC 625.42 describes energy management and why a listed system still needs a property-specific design.NEC Articles 220 and 230Service upgrades and load calculationsWhat a calculation can and cannot establish before an electrician evaluates a possible electrical service upgrade.

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