I'm learning to interpret the table here (about 1/3 of the way down):

http://www.powerstream.com/Wire_Size.htm

What are examples "Chassis wiring" and what is "power transmission"?

My specific situation: I have a 70 foot run of 10/3 wire to a subpanel
inside my house. How many amps can I have on that subpanel?

Thanks,

Aaron