On 24/11/2014 17:59, random832 at fastmail.us wrote:
Wikipedia says it was the other way around - lighting
was cheaper,
creating a natural incentive to plug any device you could get away with
into the lighting circuit.
AFAIR (not always guaranteed :-)), that's correct. Which is why we used
to have bayonet adapters that could plug into pendant lighting sockets
in place of a bulb, and why we also had what amounts to a T-piece or
splitter, to allow both the bulb and the adapter to coexist. I think I
still have some, somewhere. And pendant light sockets are of course
virtually always two-wire, insulated (no metal except the two
terminals), no earth.
Aha, I've just found four such adapters and one splitter. If I have
time tomorrow I'll post a photo somewhere3.
--
Pete