Bonding Radiators if plastic piping is being used

[robbo777]

Hi

Just rewiring a friends house and he tells me that he is replacing the central heating system too but he's doing it all in plastic piping.

Do I need to bond the radiators?

Many Thanks

 

[Darkwood]

No! ...

 

[malcolmsanford]

Twice no ........................

 

[Guest123]

And thrice no, assuming RCD protection etc etc.

 

[Darkwood]

I did struggle with this one as a minimum of 6 characters is needed for a post and NO is only 2 but had to spend extra time adding 4 more

 

[malcolmsanford]

And thrice no, assuming RCD protection etc etc.

Don't think even if it was in a special location Lenny and it's plastic would RCD protection be a concern here mate.

 

[robbo777]

Thank guys for clearing that up for me, much appriciated

 

[Guest123]

Don't think even if it was in a special location Lenny and it's plastic would RCD protection be a concern here mate.

No, absolutely not mate, but....being ever the sceptic, I've heard the old "it's all going to be in plastic" gem before and it ends up with more copper than owt else.

Just covering all possibilities is all.

 

[i=p/u]

ads is in place = main protective bonding at right places with rcd you can still pipe in copper and be koolimp2:

 

[GB266]

I agree, but don't forget that the boiler will still need bonding as the gas pipe will be metal, and if your friend is installing a hot water cylinder (both vented or unvented), this should also be bonded.

Best wishes

 

[sjm]

I agree, but don't forget that the boiler will still need bonding as the gas pipe will be metal, and if your friend is installing a hot water cylinder (both vented or unvented), this should also be bonded.

Forgive me, but what makes the hot water cylinder an extraneous conductive part and therefore in need of bonding?

 

[Deleted member 9648]

I agree, but don't forget that the boiler will still need bonding as the gas pipe will be metal, and if your friend is installing a hot water cylinder (both vented or unvented), this should also be bonded.

Best wishes

The gas pipe will need bonding at the point of entry......the boiler is a conductive part and will need earthing. Conductive parts connected to the cylinder will need earthing.

 

[Geoffsd]

The gas pipe will need bonding at the point of entry......the boiler is a conductive part and will need earthing. Conductive parts connected to the cylinder will need earthing.

All three are conductive parts.

The gas pipe at point of entry is an extraneous conductive part and. as said, needs bonding.

The boiler and cylinder are exposed conductive parts and will be earthed by their circuit cpcs.

Edit - assuming cylinder has an immersion heater.

 

[robbo777]

the water comes in about 3m away from the cu which is also about 2m away from the oil fired boiler so nice and easy to bond and no gas at the property or water cylinder

Although they are having a metal bath fitted should I take an earth to that?

 

[Geoffsd]

Although they are having a metal bath fitted should I take an earth to that?

No. Baths should never be earthed.

Whether it needs bonding or not depends on the rest of the installation.

See i=p/u's post above for starters.