Hello
Did you manage to get it working on regular 12V PSU?
I noticed the T2T is running on 14 Volt.
If you can force the miner at normal speed or run at low power maybe you can stay mining with regular PSU.
According to its 11.5-14.5V with 2200w.
You can try to run your miner and set up the operating mode to efficiency and try to run it with regular PSU maybe you can successfully run it without melting the wire.