I am currently doing an Electrical Installation course at college. I have been struggling with the practical side of the course. I have decided to practice at home, I've got a workshop at the back of my house. I just want to practice 2 way switches and stuff like that, I also want to practice bending the PVC around corners for the 2 loops when doin a 2 way and intermediate switch at college, I am especially struggling with this, the course tutor has told us to try bending it around a ceiling rose, this doesn't work for me though, I'm not the only one. What kind of consumer unit would I need to practice 2 way and intermediate at home, i.e. 40A, 80A OR 100A. Any advice would be much appreciated as I want to get cracking at home this weekend. Thanks a lot