That’s true, but generally a junction box (no devices) will be plenty big based on the conduit size rule. That will be 95% true when no more than 3 conduits are in play. That will be 100% true if it’s only being used as a pull box.
This one might come down to an AHJ and how stubborn they want to be. Good news is that 625.40 is brand new to the 2020 NEC which hasn't been adopted yet in the majority of the US. In my county, we're still using 2008.
And that's why box fill is so hated and misunderstood.
I guess I got caught up with the post you were quoting. It had multiple connections because of 2 chargers.
I thought that was introduced in 2017, but you’re right, either way, it doesn’t apply to us!This one might come down to an AHJ and how stubborn they want to be. Good news is that 625.40 is brand new to the 2020 NEC which hasn't been adopted yet in the majority of the US. In my county, we're still using 2008.
The definition of EVSE does not limit it just to a unit, since the definition of EVSE says "The conductors, including the ungrounded, grounded, and equipment grounding conductors, and the electric vehicle connectors, attachment plugs, personnel protection system, and all other fittings, devices, power outlets, or apparatus installed specifically for the purpose of transferring energy between the premises wiring and the electric vehicle." Two wall connectors that participate in shared load balancing could be considered one unit from the perspective of the NEC.
I'd have to go back to the CMP minutes to see what they were aiming for with 625.40. But 625.47 also seems to anticipate a similar question, noting that "where equipment is identified for the application, more than one feeder or branch circuit shall be permitted to supply equipment."
Here would be my argument to an inspector (whose opinion is the only one that counts!):
Two Tesla gen 2 wall connectors are listed to form a single unit of Electric Vehicle Supply Equipment which performs appropriate load balancing as a system to multiple vehicles. Only a single outlet is necessary to connect to this EVSE as it operates as a unified system.
Now, if the AHJ disagrees, then it depends on how much effort (and potential $$) you're willing to put into fighting it. Appeals to the head inspector, the county board, and even lawsuits are potential remedies... or, you can just make them happy by running another set of wires.
That's 1" LFMC and an 8" box, for the record. There is no 3/4" conduit involved. The photo was shot from a bit of an odd angle as I was straddling the pile of firewood I had obviously only mostly moved out of the way of the work (when my kid got home, we moved the rest of it and built a proper wall to create the required clearance between the firewood nook and chargers).
Sorry to digress, but is that redwood siding?
It's western red cedar - about 40 years old and not very well maintained. It looks reddish brown in bright sunlight and purplish black in the shade. Bit of a green tinge from the "aged" polyurethane when the light hits it just wrong.
LOL-preaching to the choir. We have the exact same deal here in NJ. California builder, house built in 1970. We bought in 2017. Previous owner did zero home maintenance. Most of the house was pitch black, and cedar looked like it had been treated with a flamethrower. We used a process of sanding off the "char," stripping whatever old stain was on the wood with a product called HD-30, then oxalic acid brightner--did that 3-4 times and stained with a stain by Armstrong-Clark. House looked much brighter/nicer. Held up for 4-5 years, and we did half the house last fall, and will do the other half this fall. Over time, the sun causes tannins in the would to come to the surface making it look black. I have a background in chemistry, and we did a deep dive on this. We like the siding, but sometimes it would be easier to wrap the house in vinyl siding.
I stand corrected, thanks. I zoomed in and thought I saw a "3/4" on it in the markings on the side, and from the relative sizes in the photos it certainly looks like 3/4 (since LFMC always looks bulkier). All good.
