The 2020 National Electrical Code (NEC) contains significant revisions to Article 625 Electric Vehicle Power Transfer Systems. Free access to this information is linked below:
You will need to set up a (free) account to view Article 625.
We like to drill into technical specifics and there is no better place to get a sample of the debate than in the transcripts of public input, committee discussion and balloting, public response and final balloting. The links below provide the access point:
We find a fair amount of administrative and harmonization action; fairly common in any revision cycle. We have taken an interest in a few specific concepts that track in academic research construction industry literature:
- Correlation with Underwriters Laboratory product standards
- Bi-Directional Charging & Demand Response
- Connection to interactive power sources
As a wiring safety installation code — with a large installer and inspection constituency — the NEC is usually the starting point for designing the power chain to electric vehicles. There is close coupling between the NEC and product conformance organizations identified by NIST as Nationally Recognized Testing Laboratories; the subject of a separate post.
Public input on the 2023 Edition is due September 10, 2020.
We typically do not duplicate the work of the 10’s of thousands of National Electrical Code instructors who will be fanning out across the nation to host training sessions for electrical professionals whose license requires mandatory continuing education. That space has been a crowded space for decades. Instead we co-host “transcript reading” sessions with the IEEE Education & Healthcare Facilities Committee to sort through specifics of the 2020 NEC and to develop some of the ideas that ran through 2020 proposals but did not make it to final ballot and which we are likely to see on the docket of the 2023 NEC revision. That committee meets online 4 times monthly. We also include Article 625 on the standing agenda of our monthly Transportation & Parking teleconference; open to everyone. See our CALENDAR for the next online meeting
Category: Electrical, Transportation & Parking, Energy
Colleagues: Mike Anthony, Jim Harvey
ANSI/UL 2202, Standard for Electric Vehicle (EV) Charging System Equipment
ANSI/UL 2594, Standard for Electric Vehicle Supply Equipment
ANSI/UL 2251, Standard for Plugs, Receptacles, and Couplers for Electric Vehicles