Yea that doesn't sound like a legal installation. I would withhold payment until it is done correctly (and passed inspection). I used 3-3-3-5 copper SER to feed my subpanel from a 100A breaker on my main panel. My inspection will be early next week, hope I pass!
This is also an illegal install if that subpanel contains a 100A breaker for a wall connector configured to 80A. It is legal only if the wall connector is configured for the 72A charging setting on a 90A breaker. See the same section in the FAQ mentioned in the post directly above.
However, I will say that many inspectors will pass the configuration, and since the inspector's opinion is the only one that matters, good luck with it.
2/3 cable is rated to 95A when installed per art 334. Many electricians say "yeah, it's only going to be charging at 80A though!!!" and neglect to read one of the most basic articles of the Code (210) which says the conductor must be rated at not less than 125% of continuous loads. 80 * 125% = 100A. Conductors that are rated less than 100A don't qualify.
I got the geckos toes too (2 of them). One observation I have is although the HPWC top recess is suited to hang the wire but when doing so the wire would rub against the wall and the HPWC surface a lot more. in my case I dont like the cable banging against the hollow drywall making thud sounds and also picking up some of the white paint from the garage walls. Got to figure out a better solution. I do think the geckos tows create some gap between the wall and the cable to alleviate this problem. I may even consider getting the tesla cable organizer/holder and have about 8 feet of the cable in 1 loop ready to take out and put back daily without any movement (and hence rubbing against the wall) of the remaining 16 feet of the cable.
The charging cable is too thick to work with those kind of reels. I was looking them up to but couldn't find any that seemed like will take this thick cable.Has anyone considered a retractable hose reel?
You could always use a Retractable Spring Balancer to return your WC to some default "floating" home position. Not something I would do, but might work for others.
I bet a water hose reel or an air hose reel would work. they are a thicker diameter.
48A with HPWC vs. 40A charging with 14-50. You have to decide if that's an advantage to you. The cars will fully charge overnight either way. But you wouldn't have to plug in the cord-- most people leave in plugged in and hang the cord on the wall with a bicycle hook or something similar. You only unplug it and take it with you if you're traveling out of town.
I have a 14-50 in my garage, and I'm contemplating a wall connector for a few reasons:
I guess that depends on if the circuit is run already. In my situation it's a 50A circuit. I'll still only be charging at 40A, even with a wall connector.
@jsollender - IMO - I don't see any benefit. I got the HPWC installed now as my X has 72a charger and I want to utilize my TOU rates to the max. My S still charges full overnight using the 14-50 NEMA. I have actually never bothered to take the cable with me when we did trips with the S. You don't need the cable at supercharges and majority of the other public chargers have a cable to which you attach the J1772 adapter that came in the bag and plug in.
Sustained charging load = 80% rated amperage of 50amps = 40Amps. But experts could chime in for more details. Summoning @FlasherZ ... @ccutrer ...
