Charging on a weekend out of town

[i8iridium]

Built a device so I could charge at my AirBnB off the Oven plug this past weekend. Made for a lot less planning for charging in the local area.

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[SnBGC]

Oven plug would work.
I rented an AirBnB in Sedona and to my surprise there was a Tesla L2 unit in the garage. Never was even on the listing. It was hard wired in though......so I just charged via L1 since we were there for several days anyway...

 

[i8iridium]

Oh it worked like a champ! And all out of spare parts in my bin-of-crap.

 

[Carsinmyblood]

I wouldn't do that for a few important reasons.

Someone better able to explain why will be along shortly, no doubt.

 

[i8iridium]

I'd like to hear the reasons, but to get ahead of it, the oven outlet is a NEMA 10-50, so it's two hots and a "neutral". Well, it's a neutral to the oven, but the wiring in the box is still a ground. It's attached to the ground/neutral bar in the panel. It's essentially a NEMA 6-50 (two hots and a ground).

Moreover, the neutral is not used in the EVSE at all. It doesn't go anywhere in the plug. So the NEMA 10-50p "neutral" is wired to the NEMA 14-50R ground.

 

[SnBGC]

I'd like to hear the reasons, but to get ahead of it, the oven outlet is a NEMA 10-50, so it's two hots and a "neutral". Well, it's a neutral to the oven, but the wiring in the box is still a ground. It's attached to the ground/neutral bar in the panel. It's essentially a NEMA 6-50 (two hots and a ground).

Moreover, the neutral is not used in the EVSE at all. It doesn't go anywhere in the plug. So the NEMA 10-50p "neutral" is wired to the NEMA 14-50R ground.

I think it only becomes an issue if the oven plug is on a sub panel vs main panel. Correct?
IIRC....a sub panel usually has the neutral and ground isolated from each other. ???

 

[i8iridium]

I think it only becomes an issue if the oven plug is on a sub panel vs main panel. Correct?
IIRC....a sub panel usually has the neutral and ground isolated from each other. ???

Yes, in a sub-panel they would be isolated, but there's still an individual neutral and ground bonded back in the main panel from that sub.

 

[bshaw]

How did you get the car close enough to where the EVSE was able to reach the oven plug via your adapter outlet? Was this house setup with the oven near a window/door that happened to be near the driveway? Or you put a really long cord on your adapter so it could reach?

This looks like a solid alternative to 120V charging, but getting in the proximity for it to work seems like a toss up, unless you know the property layout in advance.

 

[i8iridium]

How did you get the car close enough to where the EVSE was able to reach the oven plug via your adapter outlet? Was this house setup with the oven near a window/door that happened to be near the driveway? Or you put a really long cord on your adapter so it could reach?

This looks like a solid alternative to 120V charging, but getting in the proximity for it to work seems like a toss up, unless you know the property layout in advance.

It was a shot in the dark, the oven was very close to the side door where the driveway was. No extension cord used. I do have a J1772 extension cord if I need it though.

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