I want to put down some loft flooring but the wiring in my loft is ancient, its some kind of metal piping or conduit, every few metres or so they run into some kind of junction boxes, these are stopping me from putting down the flooring as they are above the joists. I would like to replace the cable with twin & earth and run this below the joists. Can anyone tell me the best way to go about this, i had thought of doing it in small sections, turning off the power cutting out a section, replacing with twin & earth then power up again, is this wise or not?? Also what purpose do these old "junction boxes" serve and what would i replace them with?
One last thing, i live in scotland and i guess the regulations are different here, can i do the work myself or does it need to be done by a qualified spark?
Many thanks in advance folks!