22kw from 3 x 240 volt phases at 32 amps each. The EVSE signals amps not watts. 
The car draws 7kw single phase and 22kw three phase. 

At least that's what my Australian Tesla does. Euro cars have Mennekes sockets 
with three live pins not j1772 or Tesla proprietary sockets. 

John Lindsay

> On 12 Jul 2017, at 8:14 am, Lawrence Harris via EV <ev@lists.evdl.org> wrote:
> 
> 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
> lhar...@haritech.com
> 
> 
> 
> 
>> On Jul 11, 2017, at 15:03, David Kerzel via EV <ev@lists.evdl.org> 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:ev-boun...@lists.evdl.org] 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:ev-boun...@lists.evdl.org] 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:ev-boun...@lists.evdl.org] On Behalf Of brucedp5 via EV
>> Sent: Monday, July 10, 2017 4:56 AM
>> To: ev@lists.evdl.org
>> 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...
> URL: 
> <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20170711/20f94f55/attachment.htm>
> _______________________________________________
> 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)

Reply via email to