Purpose of shower isolation switch
On Sat, 12 Dec 2015 12:52:10 -0000, ARW wrote:
"Mike Humphrey" wrote in message
o.uk...
Graham. wrote:
On Fri, 11 Dec 2015 23:29:35 -0000, "Tough Guy no. 1265"
wrote:
Had a look around on t'internet, seems to be no real reason to have a
shower cord in the bathroom. Why does it need to be switched off any
more than any other appliance? Apart from maintainence once a decade,
in which case you pull the fuse in the fusebox.
Doesn't have to be a pullcord, can be a dolly switch outside the
bathroom.
I don't trust pullcord switches, even if they have a mechanical
tell-tail, so I would always isolate upstream as well.
Every appliance needs an isolator, and an isolator must isolate all live
conductors - that is both line and neutral.
On a TN system there is no requirement to isolate the neutral and a single
pole MCB is allowed to be the isolator.
Thought so, which is what I've read in some of the legal documents. Yet everybody seems to be fitting these switches.... Unless it's a greenie thing to stop power wastage from the LED/neon on the shower unit?!
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