The European smart ED supports 22kW charge rate, we only get 3.3kW with a measly 7.2kW on the 2017 models.
So a Europan smart could maybe ask for 22kW from a 7.2kW EVSE which if it failed to limit the current might overheat and … Seems unlikely the EVSE would fail and the beaker would fail and then the fire jump to the car and cause all this damage. More likely there was a short in the car or someone torched it. My takeaway is the plastic in these items needs to have fire resistance added so it can’t burn. Regards, Lawrence Harris [email protected] > On Jul 11, 2017, at 15:03, David Kerzel via EV <[email protected]> wrote: > > In your example the EVSE is set for 40 amps providing 32 Amps via the PILOT > signal but powered by 30 Amp circuit. If the car could use 32 amps the 30 > amp breaker even with tolerance should trip in about an hour. Can the car > in question charge at 32 Amps? > I am still confused by how the EVSE even if it was defective or overloaded > in some way caused the car to burn. The car should only accept the maximum > amount of power the on board charger is rated for and that has nothing to do > with the EVSE. > I suspect the burning car burned the EVSE. I find it hard to believe a > listed EVSE mounted on a wall would burn with enough intensity to set a > vehicle on fire. > David Kerzel > > -----Original Message----- > From: EV [mailto:[email protected]] On Behalf Of Cor van de Water > via EV > Sent: Monday, July 10, 2017 7:44 PM > To: Electric Vehicle Discussion List > Subject: Re: [EVDL] ? Is this really a Smart Fortwo ED EV that burnt to > acrisp ? > > Not true, the EVSE is supposed to limit the charging current to what is safe > to draw from the electrical connection. > For example, a 240V 30A circuit must be protected by the EVSE telling the > car that it can only draw 24A (80% of 30A) continuous. > The EVSE needs to select the proper duty cycle of the pilot signal to convey > this to the EV. > If a 30A circuit is attached to an EVSE that expects a 40A circuit, it will > tell the EV to draw up to 32A, overloading the circuit. > > Besides a mis-match like that (which I have once encountered myself) there > are other concerns, such as a worn, damaged or corroded contact in the > charging plug, either of the EVSE or the car. > And then there is the ever-present danger of a failing wire in the cord. > This is not exclusively a problem from EV and EVSE, as my colleague had a > small fire in his house this last winter due to the wire at the back of the > wall plug starting to break internally and the remaining strands overheated > to the point of setting the cord on fire. > > I have had similar experience with an outlet in a previous home, where the > wire coming out of the wall probably was nicked before being attached, so > after successfully washing loads of laundry for years (water was heated > electrically so the washer drew about 12 Amps continuously for an hour or so > during a hot wash > cycle) suddenly one day the bathroom filled with smoke and the wire inside > the outlet burned clean through. > There had been no movement of that wire, so no gradual breakage - this was > purely a resistive heating induced failure. > > Besides the EVSE itself, the circuit it is fed with and the charging plug > contacts, also the circuitry inside the car (AC powered HV battery charger) > can fail, for example an improperly tightened wire or a loss of water > cooling overheating the charger, which subsequently fails and burns... > So many different ways to let the magic smoke out... > Cor. > > -----Original Message----- > From: EV [mailto:[email protected]] On Behalf Of David Kerzel via EV > Sent: Monday, July 10, 2017 12:36 PM > To: 'brucedp5'; 'Electric Vehicle Discussion List' > Subject: Re: [EVDL] ? Is this really a Smart Fortwo ED EV that burnt to > acrisp ? > > What does the EVSE have to do with this? The car makes the decisions. > The EVSE is just a super safe power cord. > David Kerzel > > -----Original Message----- > From: EV [mailto:[email protected]] On Behalf Of brucedp5 via EV > Sent: Monday, July 10, 2017 4:56 AM > To: [email protected] > Subject: [EVDL] ? Is this really a Smart Fortwo ED EV that burnt to a crisp > ? > > % First look at: > > > http://electric-vehicle-discussion-list.413529.n4.nabble.com/EV-fire-Fau > lty- > wall-mounted-EVSE-completely-burns-Smart42ED-EV-uk-td4687296.html > EV-fire: Faulty wall-mounted EVSE completely burns (?Smart42ED?) EV.uk > Electric car gutted by flames after it set fire while charging An electric > car was left completely burnt out after it set on fire while charging. The > vehicle was destroyed and a nearby building was damaged by smoke in the ... > > > then at the end I placed some image links of Smart EV frames without their > body. > > The EV's body was not metal and completely bunt away. Only the metal frame > was left, including the metal frame for the doors. Compare, and decide. Was > this EV really a Smart? Or was it something else. > > > > > http://evdl.org/evln/ > For all EVLN EV-newswire posts > > > {brucedp.neocities.org} > > -- > View this message in context: > http://electric-vehicle-discussion-list.413529.n4.nabble.com/Is-this-rea > lly- > a-Smart-Fortwo-ED-EV-that-burnt-to-a-crisp-tp4687297.html > Sent from the Electric Vehicle Discussion List mailing list archive at > Nabble.com. > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag > racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag > racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag > racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Read EVAngel's EV News at http://evdl.org/evln/ > Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) > -------------- next part -------------- An HTML attachment was scrubbed... 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