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PostPosted: Sat Sep 01, 2018 12:29 pm 
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Hello all.
I need to install shaver socket (115/230v) in Zone 2, in a shower room.
This will be RCD protected.

Best place I can take it from is a spur, already in place for a heated towel rail.

Can I take my feed from this spur (Feed in), to another fuse spur using the correct fuse, for the shaver socket.

Incidentally, this is for a toothbrush, not a shaver.

Hopefully clear, great for all feedback as good to hear all views .
Cheers, Tonk.


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PostPosted: Sat Sep 01, 2018 1:49 pm 
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If its for a tooth brush dont use a shaver socket, it will heat up and burn out.
Get one for a tooth brush and shaver.

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PostPosted: Sat Sep 01, 2018 7:11 pm 
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thanks, where can you buy these from?
Any thoughts ref other queries,
tonk


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PostPosted: Sat Sep 01, 2018 7:27 pm 
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Not that you do not believe me.............

Attachment:
ss1.jpg
ss1.jpg [ 33.9 KiB | Viewed 640 times ]

This one is shaver only


Attachment:
ss2.jpg
ss2.jpg [ 43.05 KiB | Viewed 640 times ]

This one is shaver or toothbrush

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Fret not, a forum is a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link to find out more.

Working on anything electrical? have you got a multi meter? why not? Would you hit a nail with a shoe?

If gloom had a voice, it would be me. :mrgreen:

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PostPosted: Sun Sep 02, 2018 9:00 am 
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Whats the difference? they are both rated at 115/230Vlt, why would they burn out? The only reason Iam asking is out here in France we have shaver sockets and a standard socket in the bathrooms as part of the regulations, in other words you have to have them, the only difference to the Uk is everything is double pole, and even the earth wire in a standard twin/earth is insulated unlike the bare earth found in Uk cable. This is a very comman mistake made by genuine and P&O sparkys that come over here to wire a friends house, it then fails the test and has to be re-done, or if there is a fire then no insurance payout :shock: Nos


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PostPosted: Sun Sep 02, 2018 9:24 am 
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Nos wrote:
Whats the difference? they are both rated at 115/230Vlt, why would they burn out? Nos


I can't tell you why, but they do burn out with a toothbrush charger permanently plugged in unless they are specced for it.

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PostPosted: Sun Sep 02, 2018 10:00 am 
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ayjay wrote:
Nos wrote:
Whats the difference? they are both rated at 115/230Vlt, why would they burn out? Nos


I can't tell you why, but they do burn out with a toothbrush charger permanently plugged in unless they are specced for it.
I would have thought that the transformers are rated differently. A toothbrush would take a while to fully charge whereas as shaver is plugged in for use and then removed. My guess would be the shaver socket transformer would overheat if sat on for long periods

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PostPosted: Sun Sep 02, 2018 10:28 am 
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First of all let us not get confused with catching fire and burning out.

When I say burning out I literally mean it burns out, not catches fire.

(I do not know what you do know, so this is no offence intended to anyone who reads this)


Back to basics.

Anything electrical requires voltage and current. The voltage is the difference between two points (In the EU its around 230v) Current is what the connected item uses to operate, so if its a lamp it will get bright, or if its a radio you will hear music (You get the idea)

It's the current that is the "problem"
If you connect say a kettle (Kettles have a heating element) to a lighting circuit the mcb will operate instantly as lighting circuits are protected by a 6A mcb where as a kettle will need in the region of 12 amps.

Lets take our shaver socket. (These are often connected to lighting circuits)
Shaver sockets have an isolation transformer inside (In short, it isolates the mains from what ever you connect to it) These isolation transformers can only supply a very small current (Let's say 100mA) now if you plugged in our same kettle the mcb would trip immediately as its way too much current.

Now let's plug in our toothbrush charger. (It draws say 150mA) Although it is only 50mA more than the the shaver socket isolation transformer can supply, its NOT enough to trip the MCB, so the tooth brush gets charged, but the transformer is being asked to supply 50mA more than it can, so the windings of the transformer get hotter, and hotter eventually they get so hot they melt (Burn out)
They never get that hot that quick to cause a fire, and as it's in a sealed box that is full of wires and not much else, there is nothing really to ignite.

So although both shaver sockets can supply the same two voltages, one can supply more current than the other. Which goes back to what I said, its the current that is the "problem"

Please note:
I am not aware of the exact figures so anything in this colour is just made up for example purposes only.
I did not mention fuses as most place now have MCB's
If it helps, a shaver socket is on all the time. As it is a transformer and there is nothing connected to it, it just sits there using almost no current, but when you plug some thing in..............

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Fret not, a forum is a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link to find out more.

Working on anything electrical? have you got a multi meter? why not? Would you hit a nail with a shoe?

If gloom had a voice, it would be me. :mrgreen:

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PostPosted: Sun Sep 02, 2018 10:53 am 
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My tooth-brush charger =

"220- 240 VAC
50 Hz
1.5 w"


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PostPosted: Sun Sep 02, 2018 11:02 am 
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Again, great reading and thanks.
I would like to realign my question with ref to how I get power to the shaver/brush socket!
I understand that the feed from a lightening circuit makes sense to supply the above socket (If you can get to it!!).
Closer to the where the shaver socket is being located, there is a FCU for a heated towel rail. Can I take the feed from this socket, to another FCU (using the correct fuse) and then onto the shaver/brush socket.
Good to read your feedback. Thanks.
RDC protected 'yes'.


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PostPosted: Sun Sep 02, 2018 11:43 am 
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Thanks I now understand, my reference to "fire" was in regard to dodgy wiring "English" style in a French house. As said here we just plug our toothbrush into the main socket in the bathroom, as for shavers, I have had a beard for 50yrs, getting a bit long now :lol: :roll: Nos


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PostPosted: Sun Sep 02, 2018 10:11 pm 
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someone-else wrote:
If its for a tooth brush dont use a shaver socket, it will heat up and burn out.
Get one for a tooth brush and shaver.


I have used one for a toothbrush for 12 years, still works fine.


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