Limited Time to Comment on TIA Related to EV Charging Systems

Tentative Interim Amendment allows comments on NEC changes.

Tentative Interim Amendment (TIA) Log #1242 to NFPA 70, National Electrical Code, 2017 edition, revises Sec. 625.44(A) and adds two new Sections (625.54 and 625.56). The comment closing date on this TIA is October 21, 2016.

As noted in a portion of the substantiation section of this TIA:

“The language to explicitly permit 240V EV Portable Chargers in Article 625 was declined by CMP-12 and the NFPA Membership at the Technical Session. The two primary reasons were to address the electrical safety of a person plugging and unplugging a 250V cord cap into a receptacle in a wet or damp environment by requiring GFCI and the need for an in-use cover for 250V receptacle outlets serving EV charging equipment. The 2017 NEC partially addressed the GFCI protection requirement for 250V receptacles in locations other than dwellings (NEC 210.8(B)). This proposal seeks to address the GFCI protection gap along with the in-use cover in order to support the inclusion of 240V portable EV charging in NEC 625.44(A).”

As outlined in a portion of the Emergency Nature section of this TIA:

“This TIA proposes to recognize the EV 250V portable charging technology in order to alleviate a hardship on the EV industry while addressing the publicly conveyed safety concerns by introducing the GFCI protection and in-use cover requirements on the receptacle outlets for EV charging.”

You can view the full text of the TIA on the NFPA website.

Note: A TIA is tentative because it has not been processed through the entire standards-making procedures. It is interim because it is effective only between editions of the standard. A TIA automatically becomes a public input of the proponent for the next edition of the standard; as such, it then is subject to all of the procedures of the standards-making process.

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