Help with Regs

[hightower]

Another reason, most people don't own the service pipes coming into their house, so they have no control over alterations.

It may well be a plastic joint added out on the road that reduces a perfectly good Ra to something not suitable.

But in the scenario I posted the pipes to the outbuilding aren't from the supply directly, although I see what you are saying: if these 'private pipes' connect to the supply pipe the Ra would be measured from the full lot (private + supply). Then if the supply put plastic in somewhere (which doesn't directly affect the private pipes) the Ra is going to be reduced, and even though the private pipes are not affected directly (as in have been dug up), the Ra could be unsuitable because it was relying on the conductance of the supply pipe?

 

[Bobster]

Bingo.

 

[telectrix]

But in the scenario I posted the pipes to the outbuilding aren't from the supply directly, although I see what you are saying: if these 'private pipes' connect to the supply pipe the Ra would be measured from the full lot (private + supply). Then if the supply put plastic in somewhere (which doesn't directly affect the private pipes) the Ra is going to be reduced, and even though the private pipes are not affected directly (as in have been dug up), the Ra could be unsuitable because it was relying on the conductance of the supply pipe?

the Ra would increase.

 

[hightower]

the Ra would increase.

Yeah sorry

 

[davesparks]

I understand this Tel, and agree with his actions. Just trying to fathom the point of the regulation if most would say to stick a rod in instead - is this a regulation designed for a VERY specific use?

Don't forget the regulations cover all installations, not just domestic. So an industrial site with a lot of underground pipework and an in-house engineering team looking after things could use all that buried metal.

 

[hightower]

Thanks dave, was thinking on the way home whether this was aimed for sites with skilled people on site constantly and where they would have and keep paperwork showing the earth paths