My opinion about RA/TA hours is as follows, hopefully can help to answer this most popular but hardest question.
Principle:
VO is human being. Therefore there is no answer for "enough" hours that can guarantee the "pass".
If your support document is strong, then VO will be happy to go through it quicker and eariser (Just like what we did during marking as TA). Otherwise, VO can (and as shown before they will) find various reason to reject the application.
In my opinion, there are two aspects need to be proved for the RA/TA work: hours and payments. You need to prove both.
I think these documents are strong to weak support.
1. If you have contracts (ask your department HR) which clearly mentioned paid hours, it's great.
2. If you claimed your tax each year and have your T4 and NOA, it at least shows you've been paid for work.
3. If you have monthly pay stubs, it has hours and payment (maybe also tax deduction etc) thus will help.
4. If you have nothing above but just have a letter from your supervisor or your department. How could you expect the VO will not suspicious it at all?
In all, provide strong and as much as support document as you can. Otherwise questioning how many hours is "enough" or should claim is not yet as useful as cross your fingers.
Here is what's in the VO's manual:
"R76(3) makes possible substituted evaluation by an officer. This authority may be used if an officer believes the point total is not a sufficient indicator of whether or not the applicant may become economically established in Canada.
...
The scope of what an officer might consider as relevant cannot be limited by a prescribed list of factors to be used in support of exercising substituted evaluation."
rogelio said:
I would like to claim one year RA experience in Canada. What is the "safe" amount of hours per week? 17? 20? or 25? Would they accept 1600 hours as 1 year? Or should I claim at least 1900-2000?
P.S I know, 1560 counts as one year, just want a confirmation from someone's experience.