Low Earth Voltage in bathroom from bonded fittings

[Kris Dor]

Good call Risteard - yes, the earth is going into and out of the box with the 100A rather than tagged onto the cable before the fuse.

 

[Kris Dor]

Cheers for the reply Midwest - I'll have a think about nails, I did put a piece of chipboard down in the loft, I'll make sure I haven't nipped or crushed a cable up there.

 

[Midwest]

Don't be offended Kris, but if you are experiencing 'tingles', think its time you asked a competent electrician to carry out some tests on your installation, perhaps even an electrical installation condition report (EICR), don't know what the other members think about that suggestion?

 

[Octopus]

I had to investigate something like this a couple of years ago. I found that that shower cubicle was live

 

[Kris Dor]

I've had two Part P registered sparkies round already and booked in for next week hopefully to do some more testing. Unfortunately it's not something I can instantly achieve - seems to be a busy time round here - there is a massive amount of housing being built so I'm just waiting in line - I appreciate your sentiment though Midwest - I'm just seeing what i can do on the home owner front while I'm waiting.

 

[Midwest]

I appreciate your sentiment though Midwest - I'm just seeing what i can do on the home owner front while I'm waiting.

I'd stop using the offending item, and wait and see.

 

[Pete999]

I've had two Part P registered sparkies round already and booked in for next week hopefully to do some more testing. Unfortunately it's not something I can instantly achieve - seems to be a busy time round here - there is a massive amount of housing being built so I'm just waiting in line - I appreciate your sentiment though Midwest - I'm just seeing what i can do on the home owner front while I'm waiting.

Kris
You mentioned that you have had 3 "Part P Electricians" (quite what a Part P electrician is I'm not sure) around already, what did they actually do? and did the find anything wrong with your electrical installation?

 

[Sparkie30]

A clamp meter might help aswell.

 

[Des 56]

I've had two Part P registered sparkies round already and booked in for next week hopefully to do some more testing

Checking on a individuals testing and fault finding competence, perhaps via qualification,it would be a better precaution than gauging someones testing abilities by them being on that Part P register

 

[mhar]

The water outlet from the pump to the shower will be in plastic, therefore the shower not extraneous conductive. Is the radiator extraneous and conductive or is there any plastic plumbing? If you are connecting non extraneous parts via some form of bond, any voltage on the earth cable will be introduced to these parts. You already implied that there is something on the earth as there was a little spark when it was disconnected from cu.
Are you not making non extraneous conductive parts into extraneous ones and then wondering why there is a voltage on them?
Clamp the earth, find the earth leakage and go from there