Bonding in bathroom

stebiz

Daughter just moved into a house. Electrics 25 years old. She has paid for an electrician to bring all up-to-date current regs. Also new Extractor fan to bathroom. Has paid £1,300 to get it all done. Electrician has said that 'due to meter' she can now cut the bonding from radiator in bathroom. Bit confused. Any Sparks enlighten me please?

Le_Kirk

Why not ask the electrician she paid and point out where in the regs it states this and what is "due to meter"?

rob7475

I'm not a spark so can't give a definite answer. However, in the last two houses I've had rewired in the last 10 years, neither have had earth bonding to the water pipes. The spark bonds to the main incoming gas pipe and that's it. I'm guessing it's possibly down to water and central heating pipes often being run in plastic these days rather than copper?

stebiz

Le_Kirk said:

Why not ask the electrician she paid and point out where in the regs it states this and what is "due to meter"?

I would if I'd have seen him or employed him. I asked my daughter to question him and that's what he said. 

Le_Kirk

stebiz said:

Le_Kirk said:

Why not ask the electrician she paid and point out where in the regs it states this and what is "due to meter"?

I would if I'd have seen him or employed him. I asked my daughter to question him and that's what he said. 

Let me rephrase that; why does your daughter not ask him the reason behind what he said?

Owain_Moneysaver

"due to meter" does not make sense.
However under 18th Edition Regulations supplementary bonding in bathrooms is only required if not all circuits in the bathroom are RCD protected.
If there's been a consumer unit update with RCD protection to all circuits, supplementary bonding is no longer required, and can be removed. 

Risteard

Owain_Moneysaver said:

However under 18th Edition Regulations supplementary bonding in bathrooms is only required if not all circuits in the bathroom are RCD protected.

That is only one of the requirements for the omission of supplementary bonding.

fenwick458

stebiz said:

Daughter just moved into a house. Electrics 25 years old. She has paid for an electrician to bring all up-to-date current regs. Also new Extractor fan to bathroom. Has paid £1,300 to get it all done. Electrician has said that 'due to meter' she can now cut the bonding from radiator in bathroom. Bit confused. Any Sparks enlighten me please?

there's more to this than you're letting on.....
so just out of the blue after the work was all done , the electrician says "cut the bonding" with no explanation...
and what's the meter got to do with it? I'd like to think that bit has been mis interpreted. otherwise you probably haven't had an electrician sounds more like a handyman
or maybe, the homeowner specifically wanted to remove "those ugly green and yellow wires" from the bathroom radiator, and the electrician thought yeah all of the other conditions have been met, you can cut them off if you really want.

"Supplementary equipotential bonding has been omitted because the following have been complied with:
• the premises have protective equipotential bonding (Regulation 411.3.1.2)
• the disconnection times have been complied with (Regulation 411.3.1.2) • all circuits in the location have been provided with 30mA RCD protection (Regulation 701.411.3.3)
• all extraneous conductive parts of the location are effectively connected to the protective equipotential bonding (Regulation 411.3.1.2). If the three conditions of Regulation 701.415.2 are met – supplementary bonding is not required in locations containing a bath and shower".

quote taken from here, 1st hit on google