afaict modern wiring practice in europe is not that different from the uk with the main differences being
1: lower rated radial socket cuircuits to go with thier unfused plugs.
2: conduit and singles instead of T&E.
3: sockets in bathrooms.
also it is likely that there are harmonisation clauses that would make wiring to BS7671 technically acceptable there (like the ones we have in approved document part P). However doing so is likely to nonethless raise some eyebrows
HOWEVER afaict old nasty wiring (no earths etc) is much more common than in the uk.
if you are just doing stuff for yourself or friends i wouldn't worry too much as long as what your doing is done safely. If you intend to become a sparky over there you should probablly do some more research into any laws (like our part P and eaw) and any accepted standards (like our bs7671)