I'm adding a circuit to my garage for an EV charger. Yes, I have pulled a permit. I live in Massachusetts.

Here's my plan:

I'll be adding a new 60amp GFCI breaker to the panel. Yes, there is space in the panel. The GFCI is required because the new circuit is in the garage (210.8.A). The nominal load of the charger is 50amps so 60 amp is appropriate. 

Said panel is in the basement, diagonally below the garage. I plan on running the wires exposed up the basement wall, then over along the ceiling to below the basement floor. I'll add a small hole (meeting (304.A.1)) into the floor of the garage. The wires will run on through the hole, up the wall of the garage, along the ceiling, then down a post in the center of the garage. Since the garage space would expose the wires to physical damage (300.4), I will need to protect the wires with conduit. 

For this, I'll be using steel EMT which satisfies this requirement (358.E). (I wanted to use schedule 80 PVC but the big box stores are out of stock). 

The charger I'm installing can draw as much as 50 amps and calls for a conductor compatible with 90C. In order to satisfy the 1.25x requirement for constant loads ( 215.2.A.1 ), the wire should be rated for 62.5 amps. Ill be using THHN AWG 6 copper which is rated to 65 amps and 90C (B.2(1)). Total wire distance is less than 35ft.

Questions I don't have answers to:

* My charger only uses the two hot lines plus a neutral. What gauge does the neutral need to be? Citing the code for an answer would be appreciated. 

* I will be direct wiring the charger. The hole for direct wiring is on the bottom of the charger while the wires will be coming from above. Is there an elegant way for the wires to do a 180deg turn? 

* I've read that water can condense on the inside of the EMT conduit. This can be addressed by adding weeping holes along the conduit. Should I be worried about this / address this? 

* Are there requirements about the hole between the basement and garage besides size (304.A.1)? 

products I'm using:

[charger][2]

[gfci breaker][3]

[wire][4]


the post 


[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/GH2H7.jpg
  [2]: https://www.chargepoint.com/drivers/home/chargepoint-home-flex?utm_source=google&utm_medium=cpc&utm_campaign=CP-Brand-Search-B2C&utm_term=chargepoint%20home%20flex%20electric%20vehicle&utm_matchtype=p&ad_content=680890508615&gad_source=1&gclid=CjwKCAiA8sauBhB3EiwAruTRJg2JG5sicv8Bh_XgbutyRwE9Nx4h2rxIjd1QpgIC_d3ccBUviSurVhoCbaMQAvD_BwE
  [3]:https://www.homedepot.com/p/Square-D-QO-60-Amp-2-Pole-GFCI-Breaker-QO260GFICP/100159296
  [4]:https://www.homedepot.com/p/Southwire-By-the-Foot-6-Black-Stranded-CU-SIMpull-THHN-Wire-20493399/204632784