Why the Town of Cary Requires a Permit for a Home EV Charger
Cary’s residential EV charger guide points to state law, NCGS 160A-417, as the reason a permit is required. A charger adds a large, steady load to your home’s wiring, and the permit is how the town confirms the installation protects the people living there.
The town’s Inspections and Permits staff review and issue electrical, mechanical, plumbing and building permits under the State of North Carolina building codes. For a home charger, the Cary electrical permit is the one that matters most. It covers the new breaker, the wire run, the receptacle or hardwired connection and any panel work done for the charger.
NEC Article 625 and Listed Equipment
Cary’s guide sets two technical rules for charger equipment. Electrical work must comply with NEC Article 625, the part of the electrical code written for EV charging equipment. Every charger and component also has to be listed and labeled by an approved testing agency, which rules out unlisted bargain units. Under Article 625 a charger counts as a continuous load, which is why the breaker carries a 25 percent margin over the charger, and a 48-amp unit gets a 60-amp breaker.