Lost the numbers on my phone, so cant actually give you the number - but if you get the switchboard number; ask for the library (perhaps station learning centre or something along those lines). They would be able to point you in the right direction. There is (or was) someone on base who looked after work experience.
Alternatively, if you specifically want to work with one unit / area, a letter directed to them will work! PM me if u need anything more specific
vigi