OMG

The circuit with no cpc could be a doorbell or a light circuit etc
So, do we regard this as 2 circuits in one mcb and write 2 lines on our eic or do we only write down the worst case one ie without cpc or are we simply not allowed to do it ?

Your opinions pls
Ady

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Resistance is futile.

Circuits are defined by the overcurrent protective device, not by cables, so by definition you have just one single circuit there.

Treat the missing c.p.c. the same as if you'd found a spur w/o a c.p.c.

- Andy.

I think I would enter the feed with the cpc on the cert. with it's test results and put a note in the remarks section that one section of that circuit has no cpc and that class one equipment must not be used on that part of the circuit, also put a sticker on the c/unit stating the same. As Andy said, it's only one circuit if they're coming off the same breaker/fuse,

Dave.

Hi Ady,
In my company we are always put them down as 2 separate cct (cct 1 and cct 1A).
If there are 2 lighting ccts one the same mcb there is a chance to share neutrals. Some times they install a new boiler and the connect the new cct on an existing mcb with a radial socket cct 16A. I dont think you can say that this is one cct.
314-01-04 says: where an installation comprises more than one final cct, each final cct shall be connected to a separate way in a ccu. The wiring of each final cct shall be electrically separate from that of every other final cct, so as to prevent the indirect energising of a final cct intended to be isolate.

Regards
Paul

Alternatively, if you look at the definitions in section 2, you will discover that each of the examples is regarded as a single circuit, as it is fed from a single overcurrent device.

Regards,

Alan.