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200W, 10 hours / day, 365 days / year = 730 kWh / year @ 14p / kWh, = £102.20 / year Which is about 2% annual return on a £5k investment; I'd rather just keep the £5k in the bank.

Maybe whoever had the house rewired kept their freezer in the cellar. Keeping that circuit off the rcd would prevent a nuisance trip from defrosting all their food.

is that g&y sleeving or tape on the 3rd core of the swa?

mixed colour scheme in the swa (red phase, blue neutral) - should the neutral have been sleeved black?

or if you use a dc supply, and some diode arrangement in the switches (theoretically, not suggesting any reason why anyone would want to).

sounds a reasonably sensible product, just aimed at completely the wrong application. I.e. instead of the second shower, have a submain feeding all panel heaters, immersion heater etc.

A short, fat person has a lower resistance than a long, thin length of copper.

If i understand your diagram - you've taken a live supply into the first socket, then from the neutral of the first to to the live of the second, then taken the neutral of the second back to the rcd? You haven't shown any earths - is this just for the sake of clarity?

do you have any light switches which don't appear to do anything?

What's the problem with the english socket? Seems a lot better than most travel adapters, anyway.

how about 3 of these? http://www.hss.com/g/57513/Festoon-Lights-Industrial.html

am i missing something? what does the black box actually do, other than come complete with a couple of potentially-lethal leads?

who has their front door 3m above ground level????

maybe the european style switching (auto alimentation???) with elv switch drops will become more common? or pull cords?

Most products should have built in protection against putting the batteries in the wrong way round - in which case you should be able to just try the adapter with each polarity & see which way works.

3 phase is also capable of delivering 3 times the power of a single phase system, whilst only using 50% more conductors (3 instead of 2).

Does this mean freezer radials will need to use a 32A ceeform connector?

or thread the string through a bracket about 4" above the pull to stop it swinging about as much?

assuming unity power factor - things get a bit more complicated when dealing with Big Machines

fishing line? if you can slide it under then wrap it round a few times, keeping it taught, it might raise the light enough to get a crowbar in underneath edit: missed 'might' out of last sentence