Just got our iMIEV as our first electric car after having a Zero electric motorcycle for a couple of years. The first thing I looked into after getting the iMIEV was how we could quick charge at the houses of friends and family we have, a few of whom are near the edge of the iMIEV range. The best option I could think of was borrowing their 240v dryer connections. This won't be a new idea to most EV owners. But those who have looked into this also know that finding a suitable 10-30 or 14-30 Nema extension to get from the dryer location out to the car is a difficult task. Basically you have to use a bunch of adapters, or customize something. In my case, I did a little of both.
After looking around some more though, I came across this on ebay: http://www.ebay.com/itm/GFCI-POWER-CORD ... 1951970003
. It's a power cable designed for a commercial dryer/blower unit, but it seems perfect as a level-2 charger extension for the iMIEV:
-50', 10 AWG (it's designed for a 24A constant load, so it should handle the 16A max load an iMIEV with L2 charger should draw)
-10-30p male Nema plug (the older 3-prong standard for US dryer outlets)
-L6-30r female receptacle (perfect for many of the portable L2 EVSI units out there, like the EVI one for $340, or the upgraded OEM)
-Built in 30A GFCI (An important feature when you consider that this cord is likely going to be lying on the ground outside)
So while the $170 price may seem like a lot for an extension cable, it actually would be very difficult to put together your own solution at this price (especially with GFCI). And while this is a long run, the 10 gauge cable and the minimal number of connections/adapters means there shouldn't be too much voltage drop. The only adapter you might need to make/buy, would be a 14-30p to 10-30r for houses with the newer 4 prong dryer connections (which you can easily make from parts at a home depot/lowes, or buy pre-made from any number of places for about $50.
Combine this with a portable L2 EVSI that has an L6-30 plug (such as the EVI mentioned above, clippercreek, etc) and you'll have a very flexible and portable ~70' total length solution that can safely charge the iMIEV at the maximum rate (short of chademo) at nearly any house in the US with no modification. All for less than $600.