Installing a 200Amp subpanel for the new shop -- fed from a 100Amp breaker in the main panel. It's a Square D QO panel. My electrician ran AL 2-2-2-4 feeder cable but i can't tell what type -- i know depending on the sheathing it may be rated to carry 100Amps or 70Amps.
Questions
1) can you tell from this picture what type of cable/sheathing this is?
2) in order to seperate the ground from the neutral do i need to install a seperate ground bar or is there a way to isolate these 4 existing bars (2 of each side) so that 1-2 can be used for ground and the others for neutral?
3) I want to make sure the ground/case screw is not installed but i don't see one nor though do i see where it would go...can you point it out? I'm 99% sure i'm OK but want to make sure.