It's actually called the CEC - Canadian Electrical Code - not the the CSA electrical code - Canadian Saftey Association.
If the latest one hasn't toally changed everything- be prepared to strap conduit a lot more than you have to down here, I think they changed kitchen receptacles and are now fairly similar to down here, AF's will probably only have to be bedrooms still. For the most part you'll find that the for the most part it's the same, but that there are many subtle differences. They use a lot more steel boxes. Some of the fun stuff is terminology. NM-B is NMD in Canada. They use NMW instead of UF- same stuff different name.
Your still dealing with the same voltages and frequencies. However if you are on commercial/industrial, you'll find you use a lot more 347/600 then 277/480.
And I find that the CEC is easier to follow and reference too than the NEC is.