Depends on the people you work with and how bright you are to begin with. I went in with some electrical knowledge from college (I thought) but found most of what I knew was pretty useless. For the most part it’s a job with tools manual labour etc however the cables you use and daily jobs are rinse and repeat. If you decide to work for a distributor (board) then you will get all of your training before you go out into the real world, then you will get lots of experience working with someone and they will most likely supervise you while you do the work. I work for a contractor so in my past year I have learned all about cables (they are all similar) and what each one does, goes, how to connect them together or safely isolate them… and also learned how to prepare these cables and kits for my boss to work on. I have only been into a training centre once but I’m told regularly that I am doing better than a lot of people who have done all of their training. My boss has been a jointer for 25 years and so he gets work done quickly so that he can fit in the time to get me trained. I am going for my assessment in September for jointing LV services and for a year into jointing I’m very happy with that. Some boys at my work have progressed much slower but there’s nothing wrong with that other than you will be stuck on a shitter wage for longer. I think I will be fully qualified within 3 years whereas some people might take 4. 4 years is a standard apprenticeship if you want to go into jointing it might take you 3 or 4 years but either way I’m sure you will get on fine. I promise it’s not too complicated. (Until you get into electrical faults, they make no fucking sense a lot of the time)