Electrics in a new build house

Chris Pearson:

mapj1:

Actually I think you should test at stages determined by the highest pain level of what you have to do if there is a problem found.

I think that we are both saying the same thing. Clearly a ring final needs to be joined up before it can be tested properly, but the conductors can be checked for continuity and IR in any section which may be difficult to replace later. If a JB (maintenance-free, of course) is to be entombed in a truly inaccessible location, it would indeed be sensible to test in stages.


That said, and perhaps I am missing the point somewhere, but I still don't see why I&T of a new installation merits an EICR as opposed to an EIC.


One other thing. When inspecting another's work for initial verification, would sampling be appropriate?


My thinking is that if you take a few sockets off the wall and the workmanship is good in all of them, you may be confident that all of them have been installed to the same standard, so sampling would be appropriate. Put another way, if you instruct a reasonably experienced apprentice to put up some sockets, would you want to inspect all of them before they are screwed to the wall, or would you trust your apprentice to do it correctly?

 

Chris Pearson:

mapj1:

Actually I think you should test at stages determined by the highest pain level of what you have to do if there is a problem found.

I think that we are both saying the same thing. Clearly a ring final needs to be joined up before it can be tested properly, but the conductors can be checked for continuity and IR in any section which may be difficult to replace later. If a JB (maintenance-free, of course) is to be entombed in a truly inaccessible location, it would indeed be sensible to test in stages.


That said, and perhaps I am missing the point somewhere, but I still don't see why I&T of a new installation merits an EICR as opposed to an EIC.


One other thing. When inspecting another's work for initial verification, would sampling be appropriate?


My thinking is that if you take a few sockets off the wall and the workmanship is good in all of them, you may be confident that all of them have been installed to the same standard, so sampling would be appropriate. Put another way, if you instruct a reasonably experienced apprentice to put up some sockets, would you want to inspect all of them before they are screwed to the wall, or would you trust your apprentice to do it correctly?