awtivy t1_ir3i18k wrote
Reply to comment by Loon610 in Wiring EV Charger by Loon610
Another option would be to put a junction box on the exterior attic wall. This could serve as a junction point between the NMD90 and either some TECK90 (outdoor armoured cable) or flexible conduit or ridged conduit. Theoretically you can remove the sheath from the NMD90 up to the transition to conduit but I would just size the conduit so it fits with the sheath on. Then just get one 90 for conduit and one of the right angle watertight grommets.
https://www.homedepot.ca/product/southwire-1-inch-liquid-tight-non-metallic-simpush-90-degree-connector/1001386626 Assuming it’s a 1” knock-out.
Also looks like the they are ring terminals so you may need to get bigger rings for #6 wire from lordco or another electrical store.
Loon610 OP t1_ir3sqib wrote
Thanks for the idea, I think I will still come in from the bottom though to avoid the 180 turn with conduit or armoured cable to get in the charger, they say it can be mounted upside down inside but then it’s not guaranteed waterproof. Lordco eh, I see you’re a fellow BC’er haha.
So my plan is either keep the 40amp breaker or possibly upgrade to 50amp, NMD 90 6-3 wire to a junction box in garage wall just on the other side of charger carport location, strip jacket (not insulation)of wire, then from the junction box run wire through flexible non metallic conduit straight into charger through the wall into carport where charger is. What’s your thoughts? Any ideas? Also some have pointed out some jurisdictions require a disconnect switch wired in the circuit, I’m in the Okanagan so we just follow provincial code we don’t have city specific codes like Vancouver. I know disconnects are required for air conditioners here, do you know anything about them for EVS?
awtivy t1_ir3v85j wrote
As far as I know no disconnect required because an EV charger is not really a serviceable appliance. The point of a disconnect on AC unit is so when the AC guy comes to clean it he can easily turn it off and lock it out. For an EV charger it’s just passing power to your car.
The inspector will probably want the NMD inside to be in conduit for the section that is below 1.5m. I would use the watertight right angle connector I sent and just a drill a hole to put it right into the wall right into the back of a junction box inside garage. Then a chunk of conduit up to the 1.5m line and you can run the wire stapled to wall up high.
Loon610 OP t1_ir5qk7k wrote
If you don’t mind would you be able to look at this article for me and see if you see anything I’m missing. Another poster posted in relation to codes, but it seems they may not apply, he talked about ventilation being required but by the code that applied to indoor charging and carports by code are considered outdoors, this carport is also open on 3 sides so lots of ventilation.
From the article “Rule 86-304 requires that each installation of electric vehicle supply equipment rated at 60 A or more, or more than 150 volts-to-ground be provided with a separate disconnecting means
• on the supply side of the point of connection of the electric vehicle supply equipment • located within sight of and accessible to the electric vehicle supply equipment • capable of being locked in the open position”
I’m not exceeding 60amps or 150 volts to ground right? 240 volt is 120 to ground but each leg.
Another rule from the article, the other posted claimed I would need GFCI citing this rule, it only speaks of receptacles which I’m not installing, I’m surprised it seems to only call for GFCI on 120 volt circuit and does not mention it on 240 volt, but maybe that is indirectly mentioned in the second line where it mentions appropriate CSA configuration?
“Rule 86-306 requires that each receptacle for electric vehicle charging be
• a single receptacle of CSA configuration 5-20R supplied from a 125 V branch circuit rated not less than 20 A, protected by a Class A GFCI if installed outdoors within 2.5 meters of finished grade
• of the appropriate CSA configuration in accordance with Diagram 1 or 2 when supplied from a branch circuit rated at more than 125 V or more than 20 A
• labelled in a conspicuous, legible, and permanent manner, identifying it as an electric vehicle supply equipment receptacle”
Thanks again for the help, anything I’m missing here?
awtivy t1_ir8dur1 wrote
So this article was not written very well and neither was the new code rules…
Either way looks like the intent is to have gfci only on a receptacle intended to be used for EVs. Since you are hardwiring yours it’s not required.
Loon610 OP t1_ir8hvv9 wrote
Thanks a lot again for the help, very appreciated. I’m not in the industry so sometimes I worry I’m misunderstanding something or missing something.
awtivy t1_ir8dx0b wrote
Also you’re correct in not exceeding 60A or 150V
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