Supplementary bonding

[telectrix]

do you have a reg. for that?

 

[Guitarist]

Yes guitarist there is some existing supplementary bonding now you mention it, in an airing cupboard you are right!

Problem solved then. Install shower circuit, test and EIC, get paid, go home knowing that you have improved someone's life

 

[somersetsparks]

do you have a reg. for that?

errrr... no, not specifically, but then I ain't very good with reg numbers!

 

[currie123]

Good plan guitarist, sounds simple enough!

 

[tony mc]

How does it introduce a C2 on existing instalation in the bathroom?

 

[somersetsparks]

How does it introduce a C2 on existing instalation in the bathroom?

Because regs say that unless the 3 conditions can be met (main bonding, 30ma rcd protection to ALL circuits, meet disconnection times), circuits have to be supplementary bonded.

Therefore if you install a shower cct. with 30ma protection, you still have to supplementary bond it in order for the non-rcd protected circuits to comply

 

[Guitarist]

"Good plan guitarist, sounds simple enough!"

Oh, forgot the most important bit...... Notify the job through your scheme provider

 

[currie123]

I'm in Scotland so luckily enough I do not need to notify anyone!

 

[Guitarist]

Because regs say that unless the 3 conditions can be met (main bonding, 30ma rcd protection to ALL circuits, meet disconnection times), circuits have to be supplementary bonded.

Therefore if you install a shower cct. with 30ma protection, you still have to supplementary bond it in order for the non-rcd protected circuits to comply

You should find that if it is a copper supply pipe, then it is likely to be connected to the main water bonding anyway. If it is plastic, then it will not be an ECP. Either way, I'm not sure how it will make the other circuits in the bathroom more dangerous.

 

[telectrix]

Because regs say that unless the 3 conditions can be met (main bonding, 30ma rcd protection to ALL circuits, meet disconnection times), circuits have to be supplementary bonded.

Therefore if you install a shower cct. with 30ma protection, you still have to supplementary bond it in order for the non-rcd protected circuits to comply

but you don't supplementary bond circuits. you bond extraneous metallic parts. therefore, you have a case inasmuch as any extraneous metallic parts in the bathroom may need supplementary bonding

 

[Guitarist]

I'm in Scotland so luckily enough I do not need to notify anyone!

Still not sure how you can be in the UK and yet get away with avoiding Part P. Next you'll be telling me that N.Ireland don't have to bother either...

 

[currie123]

Pretty sure the supply water pipe will be copper, but the plumber hasn't put it in yet

 

[somersetsparks]

But was it not the case that the cpc's of any circuits entering the special location should be bonded, under the 16th edition ammendment?

 

[currie123]

Part pee not relevant up here, unless of course you are being ironic?!

 

[Strima]

Pretty sure the supply water pipe will be copper, but the plumber hasn't put it in yet

You'll probably find he'll use plastic out of sight and copper for show with lots of push fits more good measure. You just have to IR test to see if it's extraneous or not.

 

[Guitarist]

But was it not the case that the cpc's of any circuits entering the special location should be bonded, under the 16th edition ammendment?

You are correct in that if the 17th edition criteria are not met, protective conductors of all power and lighting points within zones must be bonded to all ECP's. GN8 does, however, state that cpc's may be used as bonding conductors. Therefore, provided that all ECP's were bonded together either in, or close to the bathroom, and are subsequently bonded to at least one cpc (connected to all the others), then continuity will be guaranteed.

 

[somersetsparks]

thanks guitarist, I never knew that, well you learn something everyday!

 

[Amp David]

Old cylinder cupboard with all pipes bonded together then connected to the CPC of the immersion.

And wasn't it only equipment that was class 1 needed supp bonding anyhow?