Hi, as mentioned above one of the best books is L'installation électrique by Thierry Gallauziaux and David Fedullo. It has most of the information you will need. This book keeps popping up all over French forums. The only snag, as per all French wiring books, Yes its in French. You can get it from Amazon.fr. I'm an English electrician and will be going to my dads place in France (old farm house) in a few weeks to wire it up for him so I translated this book into English. This was done on a computer (scanned, character recognitioned and translated to word documents into pigeon English). Looking through it now it tells you almost all you need to know including 3 phase installations (and a lot of what you don't). The English is not perfect but all the pictures are there and is easily zipped and emailed but I worn you its over 350 pages and took me 4 hours to print it to paper in colour. Good luck!