A miner and LV transformer also blow up.
I've had miner run off from 128 EU line just fine. Debug scanner said it can accept up to 512 EU/t.
It seems if i accidentally make strange loops of machines i get a random explosion. Not the mods fault, moreso mine for my shoddily ran wiring.
Are you using Gregtech? If so then its machines are able to output EU to e-net and can therefore make it have higheher EU than you'd have if they didn't output.