"electric shocks off kitchen appliances"...

[Boberto]

Had a text from a customer I did some work for last November. Message was that both the lady and her husband have had slight electrical shocks from "metal bits" in her kitchen. I asked "what metal bits?" and they responded by saying the dishwasher, oven and hob etc. The oven is on its own dedicated circuit. The other appliances are connected to the ring. They mentioned they only experience it when bare footed.

The modifications carried out in November included extending the kitchen ring to allow for a few more socket outlets and extend lighting circuit to allow for pelmet lighting. Installation is TT. ZE, ZS, IR all fine on testing. RCD tested fine. Main equipotential earthing conductors in place.

Got to go up there tomorrow to sort it out. Not something I have experienced before after my own work. Only people still working there after I finished were the tiler who was going to loosen some socket fronts off to tile behing and fix them back himself. And the plumber doing some modifications the the pipe work.

Suggestions where to start ?

 

[Rockingit]

You say this is TT......is this a rural place by any chance? If so, may have an answer!

 

[Silly Sausage]

You say this is TT......is this a rural place by any chance? If so, may have an answer!

Spill the beans...I'm curious!

 

[i=p/u]

be a rural place for the awnser of backfeed?

 

[i=p/u]

come on rockinit, share

 

[Rockingit]

well, I had this exact same problem at a place last summer - drove me potty trying to figure it out. Bloke was digging a trench to install some new drains and rang me saying he was getting a shock from an old buried oil pipe. Sure enough, definite shock to be felt, but couldn't register any sort of proper meter readings. I made an assumption that it was maybe coming from the boiler inside.....couldn't find anything at all wrong, stripped thw whole lot apart, ran all the tests and a big zero. I stood up, and leant against the stainless steel sink in the utility room - whack! There it was, on the sink. On the taps, on the bonding...... but not 230v 50Hz - you could feel it but the meter just wouldn't register (and yes, it was proved good). It was only went I went really belt and braces and started to pull apart every circuit in every hole in every bit of the place that I found it: An electric fence energiser!!! There's one of my very first threads about it on here somewhere. They had a stupidly long electric fence around a duck pond and the grass had grown up the bottom, making a permanent circuit to the energiser. The fence ground rod was further away than the house TT rod, but the energiser (in a stable block) had been miswired so that the fence ground was accidentally wired back to the main earth.................and all the way back through the ground and up into the house!! You only felt it in places where you came into contact with the bonding - basically the kitchen. Rewire fence energiser and fit the fence with it's own rod and problem instantly went away!

 

[i=p/u]

you never know.lol

 

[GLENNSPARK]

i like it rockin..lol.....and there i was goin on about white goods..lol.....

 

[Rockingit]

hey - don't you go getting carried away - I'm not saying I think I'm right!!

 

[Silly Sausage]

well, I had this exact same problem at a place last summer ......

Thanks for that, reading the original thread it sounds like you had fun on that job!

 

[Rockingit]

You stalking me now Archy? :disguise:

 

[needasparks]

Come on Boberto we want to know the outcome, i have even odds on water bond missing or cpc on ring broken from tiler, would be better odds if i know how close the sink was to these appliances to touch.

Hold, hold on, no, static ! oh i dont know !

 

[GLENNSPARK]

You stalking me now Archy? :disguise:

havn`t they started opening "treatment centres" for that kind of behaviour now rockin???...lol....

 

[Rockingit]

havn`t they started opening "treatment centres" for that kind of behaviour now rockin???...lol....

th-th-th-th-th-they wooon't let me back in......n-n-n-not since that incident with the ice cream c-c-cone