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Sad isn't it, i pop round to an old dears near my house. I heard it was her birthday so rang her up to wish her well and it made her week!
 
I was called once to a house where the kids were getting 'tingles' off the bathroom wash basin taps and they thought it funny ! On checking I found a full 240v across the hot and cold pipes - and this with the entire installation off !! This area is all TT earthing so it may have been someone elses fault in the street or even something to do with the overhead supply network ?
Wearing rubber gloves I fitted earthing straps to each pipe and connected a 10mm earth wire, there was a small blue flash and the problem disappeared- maybe a device disconnecting elsewhere in the street, it was all very odd and a bit unnerving. :smile5:
 
its not possible for the light to turn on and off on its own.... With out someone turning it on??

On that note, about 6 months ago, my daughters light came on at about 3 in the morning and wouldn't turn off, I have no idea why, took the lamp out at the time and tested the following day and there is literally no reason why it could have happened. Just thought I'd add.

And I'm missing my stalker, dillb, since he's been banned. Although he stopped following me when I started mention in a stalker.
 
Sounds like completely unrelated problems so I'd be looking for separate faults not one fault that covers both issues.


Is it exactly the same on and off time each day? Does it happen every day, most days or just occasionally? Have you done all the usual circuit tests? Have you tested for crossed neutrals or borrowed live with all the other circuits? Is it a circuit with 2-way wiring and or switches? Was it ever a 2-way system in the past?


Elbows will be more sensitive to elevated voltage and especially so maybe for old people with thinner skin so this doesn't surprise me, in fact it adds credibility to her story for me. I'm not a big fan of the static theory either, static would give one short sharp shock and not a prolonged tingling sensation. It might only take a few milivolts potential difference to be detectable as a tingle.

I know it sounds a bit 'Cockburn' but just for the hell of it I'd run a bonding wire underneath the sink just between the hot and cold tap if they're metallic construction and if it can be done easily and see if it helps. Also continue the wire to the drain/plug fitting as well if that's also metallic. She's detecting a very small potential between two different points, if you can get all points that are within the area of the sink at the same potential there's a chance you might get rid of the problem, if you don't then that only leaves the potential difference being between the bonded objects (taps etc) and the ground path through her feet in which case revisit the bonding wiring and maybe even lift floorboards in front of the sink (if there are floorboards) and check for a nail through a cable along with a bit of dampness perhaps.

Agree with Marvo re the static theory. Plus the several kilovolts of static electricity will certainly get through slightly thicker skin - bear in mind it jumps through several millimetres of air! Daz
 
This case shows why all services need to be bonded, if 240V with some current behind it is still there with the installation off a call to the DNO may be in order.
 
"Oh I for got to say it only happens when she touches it with her Elbow not her fingers ????"

is it the left or the right elbow? and has she tried other parts of her anatomy?
 

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