A relative gave me a flaky table lamp to look at. It turns out that it had a blown lamp & a loose connection in the lampholder. It also had a semi-antique MK plug & zipcord (single-insulated 2-core flex), which I said needed replacement.
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whole thing consists of alternating pieces of glass & plastic, topped with a switched BC lampholder, all held together with a steel tube threaded at both ends, with a nut on the bottom (inside the base) & a knurled nut on top with an external thread that the lampholder screws onto.
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one of my boxes of crap^W surplus parts I found a double-insulated, two-core flex cable that would fit through the pipe, but I'm concerned about the lack of earthing on the pipe, the possibility that the pipe's edges might damage the cable (at either end). (When the whole thing is assembled, the only exposed metal is the nut & the end of pipe in the base.)
Suggestions? (I doubt this is a valuable antique, so "chuck it because it can't be done right" is a possible answer.)
Thanks, Adam