Static shock from light switches even with power off??

[coxyboy]

I was called out to a job today and found something I have never come across before....
when I got to the property the tenant explained what was happening - she was getting what she called a "shock" when ever she turned the lights on upstairs in the two bedrooms and the landing. So I tested to see if there was any voltage at each switch and there wasn't. But sure thing as soon as I touched the switch I got a shock. I would say it was more of a big static shock than a normal voltage shock. So I had a little play around to investigate.

ie removing each switch reterminating and making sure the earths were connected. But still no joy. I turned off the main switch so there was no power to any circuit but I was still getting the static from each switch in both bedrooms and on the landing.

Has any one ever come across this problem before? If so what did you do to solve the problem??

Any help would be much appreciated, thanks

 

[telectrix]

The most likely explanation is that they are buildig a static charge,
then they touch some thing that is earthed ( metal switch plate )
and thus receive a tingle.
The solution is to change the metal switshs to plastic
so no more earthing thru switch plate.
Or change the carpet !

thinkher nylon carpet is worn out by now. thread is 7 years old.

 

[static zap]

think her nylon carpet is worn out by now. thread is 7 years old.

Naa perfect weather for it Cold and dry , got a belt sliding out of car at fuel station Monday.

 

[telectrix]

Naa perfect weather for it Cold and dry , got a belt sliding out of car at fuel station Monday.

tht's easilycured. static strap from underbody to road. any motor accessory shop.i've used one and they do work.

 

[Zerax]

tht's easilycured. static strap from underbody to road. any motor accessory shop.i've used one and they do work.

Or you could try some of these... View: https://www.amazon.co.uk/Truck-Balls-Bull-Nutz-Flesh/dp/B002A6LL2I