Can you sign off any work with a 30ma RCD.

[Johnconnor]

Hi, my question is. If I have an old wylex consumer unit with NB type 2 breakers (not 60898). Or let's say any CU for that matter. If it's protected by a 30ma RCD, will that pass the cert?. Or for example will the use of old mcbs not be up to standard. Thanks

 

[westward10]

You would have to note the rcd as a departure from current Regulations. Although it is probably as reliant as a current device BS4293 is no longer recognised under BS7671 for providing additional protection. The same applies to the 3871 mcbs.

 

[telectrix]

being pedantic an EIC or EICR is not a pass or a a fail. any deviation from regs should ne noted on the cert. and (with an EICR) coded accordingly. as for the single RCD for alll circuits is concerned, this would be a C3 coding (division of circuits so as to minimise danger and/or inconvenience in the case of a RCD trip).

 

[snowhead]

No, new ring has been wired to a new extension at the back of the house and just needs an EIC.

The time for deciding if the existing installation is compliant and safe for continued use would have been before any new work has been completed or even quoted for.

It shouldn't be that an additon has been made and then at the point of testing the customer is informed that they now have to pay more for upgrading to be compliant than they have just spent on new works.
They may now not have the money but if forewarned could have budgeted for it before any work was started on the extension.