Page 1 of 4

Why is the 240V charging station hardwired ? The answer is..

Posted: Mon May 10, 2010 6:32 pm
by evnow
http://blogs.edmunds.com/greencaradviso ... onfab.html

The 240-volt system won't fit in the trunk compartment, but that's okay because national electrical codes require the system to be a permanent installation, hard-wired to the incoming power source rather than attached with a wall plug.

That's not because authorities fear that Americans will fry themselves right and left with a 240-volt system, but rather than the wall plugs available (think of the triple-pronged plug on an electric clothes drier or electric oven) aren't designed to be inserted and removed hundreds of times as could be the case with a portable 240-volt car-charging system.


Imagine that. Instead of a better made plug that would cost $10 more, we are required to hardwire the station for $2,000.

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Mon May 10, 2010 7:11 pm
by mitch672
ah yes, but I see no reason why the EVSE itself can't be plugged into a 50A dryer outlet, it will stay connected most of the time in your garage. If you go on a road trip, unplug it and put it in the trunk, hoping where you go has a 50A dryer outlet (most campgrounds do to accomadate RVs)

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Mon May 10, 2010 10:09 pm
by mywaracfirfoyff
mitch672 wrote:ah yes, but I see no reason why the EVSE itself can't be plugged into a 50A dryer outlet


Too bad we can't have the simple equivalent of the 120v EVSE connector with a plug on it for 240v opportunity charging.

Seems like lugging the whole massive EVSE box around just to provide a plug for opportunity charing your car is a little silly.

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Mon May 10, 2010 10:19 pm
by mitch672
That's why there are likely to be some third party portable cord sets developed, of course it will still only be the 3.3kw charger built into the Leaf, so I imagine even more creative third party higher power chargers that use the DC port to also come out.

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Mon May 10, 2010 10:37 pm
by mywaracfirfoyff
mitch672 wrote:That's why there are likely to be some third party portable cord sets developed, of course it will still only be the 3.3kw charger built into the Leaf, so I imagine even more creative third party higher power chargers that use the DC port to also come out.


Haha! With a puny 3.3Kw charger on-board, might as well use something like this:
http://www.freeplayenergy.com/product/weza

Or this:
http://www.potenco.com/

:D

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Tue May 11, 2010 1:57 am
by planet4ever
Hey, I think you may have something there. Line up 100 high school kids and put them to work for 8 hours. You might have a pretty big pizza bill, though. :lol:

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Tue May 11, 2010 7:36 am
by EVDRIVER
Complete BS about the plug being the reason. So the plug that goes into the car can be used repeatedly and the laws of physics prevent the same type of setup from being on the wall.

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Tue May 11, 2010 7:41 am
by Jimmydreams
EVDRIVER wrote:Complete BS about the plug being the reason. So the plug that goes into the car can be used repeatedly and the laws of physics prevent the same type of setup from being on the wall.


I agree, the reason is BS, but at least the plug going into the car will have a 'trigger-latch' designed to hold it in should the fit begin to widen due to misuse. Dryer plugs will fall out if the fit starts loosening.

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Tue May 11, 2010 7:49 am
by evnow
EVDRIVER wrote: So the plug that goes into the car can be used repeatedly and the laws of physics prevent the same type of setup from being on the wall.


I guess what they are saying is the 240v plug is designed (and certified) for small # of inserts - where as the J-1772 plug is designed & certified for a large number of them.

Re: Why is the 240V charging station hardwired ? The answer is..

Posted: Tue May 11, 2010 7:52 am
by mitch672
Jimmydreams wrote:
EVDRIVER wrote:Complete BS about the plug being the reason. So the plug that goes into the car can be used repeatedly and the laws of physics prevent the same type of setup from being on the wall.


I agree, the reason is BS, but at least the plug going into the car will have a 'trigger-latch' designed to hold it in should the fit begin to widen due to misuse. Dryer plugs will fall out if the fit starts loosening.


Yes, and I suppose it's totally out of the question to replace the 240V 50A dryer outlet every 2 or 3 years, at a cost of what? $40 for the outlet and even paying an electrician labor (most could shutoff the breaker and change it on their own), what another $100 maybe. Nope, this is pure BS.