Hoping someone can offer some advice for me, I'm converting my back yard into a workshop (mostly woodwork). and I'm not 100% about how to do the electrics. To give an idea of how things are at this time, I have oil heating for the house and there is an existing double socket outside which currently feeds the oil burner. I believe this is spured off the back of an internal double socket and part of the main socket circuit for the house. The sockets are all one one circuit and my fuse box is of the older style using ceramic and wire fuses rather than trip switches.
All of the equipment I plan to use in the workshop will be 240v and the most hungry being the tablesaw. Apart from a strip light, battery chargers and perhaps a radio, there will never be more than one appliance running at any one time.
So my question is, am I safe to simply take a new spur off the external socket already in place or will I have to run a whole new cable back to the fuse box? If a new cable is needed will I have to overhaul the entire system as I can't see anyway to tie it into the existing system.