The 230V wiring consists of a #powerCON #TRUE1 socket to two IEC plugs. We had to remove the jacket, because it would've been too tight otherwise.
The aluminum casing is grounded via the good connection between PSU casing and aluminum. (see above)

You might also notice the #XT60 plug. It's a generic 24V output for connecting external devices like LiPo chargers etc.
The main reason for its existance is still having "left-over" power budget from the power supplies (~600W) :D

#PDBrick