UL 2202 is the UL standard for EV charging system equipment. Section 14 is on EV Bonding, and it requires the output circuit of the charger to provide a means for bonding the EV during charging for grounded system of protection. There are different protection schemes, so the need for bonding is dependent on which is applicable.
In general, I would think that separate grounding of an EV from the charging system could create a ground loop and so would not be desirable. On Tue, Jul 18, 2017 at 11:11 AM, Ted Eckert < 000007cf6ebeab9d-dmarc-requ...@ieee.org> wrote: > I recommend against following Ferrari’s practice. Apparently, portions of > the FXX K supercar are energized to 480 V when charging. There is a fin on > the roof with flashing LEDs. Red means stay away and green means safe. > > http://jalopnik.com/the-ferrari-fxx-k-might-electrocute-you-1796961190 > > > > Ted Eckert > > Microsoft Corporation > > > > The opinions expressed are my own and do not necessarily reflect those of > my employer, Ferrari or the Society of Automotive Engineers. > > > > *From:* Dale Reid [mailto:re...@lexmark.com] > *Sent:* Tuesday, July 18, 2017 10:52 AM > *To:* EMC-PSTC@LISTSERV.IEEE.ORG > *Subject:* [PSES] Solar electric cars built by college students > > > > Hello, > > > > Speaking of grounding, can someone share some thoughts on what would be > the best practice regarding an earth ground for an electric car while > plugged in and charging from the grid? Would it be best to tie a car's > metal frame to ground while it's hooked up for a charge? > > > *Dale Reid* > > > > - > ---------------------------------------------------------------- > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. 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