3 x RFC all with no continuity

[JosephandAmber]

What size fuse are these circuits on.

Currently 32A. Marked as ‘rings’ on the existing cables, each with two cables terminating in the CU hence I’m treating them as such without yet having managed to find continuity.

 

[JosephandAmber]

Can you tell with the age of the sockets themselves? Ie 30 year old, splash painted the same colour as the wall will be original on rfc... anything new, or doesn’t match might be additions.
Also listen out for squeaky floorboards.... hint that they have been lifted.... that could be where the joints are.

Sockets appear to be same age as the wiring. 30 years. Hence I’m slightly confused. No evidence of DIY.

 

[JosephandAmber]

Could some of the RFC legs have been mixed up between OCPD's i.e out leg on one and return to another so in effect you haven't identified both ends?

I thought this. I checked continuity between the legs of the three supposed RFCs and still nothing.

 

[Mike Johnson]

Do the sockets actually have power to them?
Have you checked continuity from the sockets back to the CU.

 

[Mike Johnson]

Just realised, 30 years old, it's a Ring Main not a Final Ring Circuit, Ring Mains flow from right too left instead of from Left too Right, to bring them in line with the rotation of the Earth they where changed to Final Ring Circuits, unless anyone knows of some other reason. ??

 

[Wilko]

Currently 32A. Marked as ‘rings’ on the existing cables, each with two cables terminating in the CU hence I’m treating them as such without yet having managed to find continuity.

Hi - well if there is no end to end continuity of L, N and CPC at the board, then I suspect they were never installed as a ring. It’s ”normal” for one conductor to lose continuity with a poor connection but I’ve not seen all 3 and in all 3 circuits, just saying. Is there a test sheet that shows (historic) continuity?

 

[7029 dave]

So no crossed legs no end to end continuity, only 1 pair present at socket outlets, leads me to jb radials.

 

[Mike Johnson]

Well I think we all have reached the same conclusion, the ring has been broken mid run into two radials off the same MCB this could be confirmed with a check from socket's to CU. C'mon Joseph put us out of our misery.

Then why only one set of conductors in each socket, T&E taken out to re-use elsewhere. ?

 

[Deleted account]

post 2 needs answering.

 

[Gavin John Hyde]

I see cables labelled ring all the time. Cooker ring. Light ring. Immersion ring. Was never a ring final circuit but back a few years thats what people called circuits.
A guy in his late 50s asked me round to change a light recently and said the lighting ring does the whole house. Of course it was a radial circuit!