Just make sure that any and all 13 amp plugs connected to ELV items ( such as 12 volt lamp holders ) will NEVER be plugged by accident into a socket with 230 volts on it.
Indeed. But as long as all the sandpit stuff is kept together, supervised, and then properly dismantled when finished with it'll be no harder to make sure of that than it is to make sure you don't grab hold of a knife by the sharp end, or a soldering iron by the hot end etc.
I would suggest going for the MDF board but mounting on it a small consumer unit with a 30mA RCD incommer, power this up with a length of 3-core flex on a plugtop.
You can then wire the lighting a power circuits for practice do the dead system testing then power the board up to test the lighting, and check the sockets with a plug in tester.
Its basically the same as what we did in the first year of college,except our flex tails didnt have a plug on the end, we had to use a safe block to power our boards up.
If your after a bit more guidance on basic domestic final circuits and wiring methods then check out the learning lounge website some great videos on there for a new starter.
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