Originally Posted By: jtedesco
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Article 625 Electric Vechicle Charging System
V. Electric Vehicle Supply Equipment Locations
625.29 Indoor Sites.
Indoor sites shall include, but not be limited to, integral, attached, and detached residential garages; enclosed and underground parking structures; repair and nonrepair commercial garages; and agricultural buildings.
(D) Ventilation Required.
Where the electric vehicle supply equipment is listed or labeled as suitable for charging electric vehicles that require ventilation for indoor charging and marked in accordance with 625.15(C), mechanical ventilation, such as a fan, shall be provided.
The ventilation shall include both supply and exhaust equipment and shall be permanently installed and located to intake from, and vent directly to, the outdoors.
Positive pressure ventilation systems shall be permitted only in buildings or areas that have been specifically designed and approved for that application.
Mechanical ventilation requirements shall be determined by one of the methods specified in 625.29(D)(1) through (D)(4).
Joe Tedesco, NEC Consultant