I never install ring circuits, the potential for danger is unacceptable

[ZEDEZ]

I’d like to know if anyone else here refuses to install ring circuits in domestic premises.

For me it’s either a 20a radial / tree circuit with 2.5mm, or a 32 radial / tree circuit with 4.0mm.

Frankly I’m tired of finding broken ring circuits on 32a CB’s, as well as mismatches on end to end tests. It drives me nuts on jobs that should be simple.

I wish we would get rid of this ridiculous practice here in the UK.

I know some of you will say there’s nothing wrong with it when it’s properly installed and tested, but inevitably at some point in the future someone will come along and disconnect a conductor unknowingly while changing outlets on the circuit.

Testing is more complicated, and diagnosing faults on a ring also.

 

[DPG]

Shits me to tears especially when the junction box is inaccessible.

Lovely phrase. I may use that.

 

[stevethesparks]

Yes but the point is people will mess with these things. With a radial or a tree, a disconnected live conductor means whatever is downstream stops working - fault is obvious and it gets checked out.

Not the case with a RFC. In my opinion that’s bad design. You have to factor this inevitability into the design, and I do, that’s why I don’t install RFC’s.

What if the fault is with the cpc on a radial. Still works, no-one is the wiser. Your argument is flawed.
Anyone could mess with a radial, and do exactly the above.
I'd rather have a fault on a ring circuit that will hardly ever be a danger, as they rarely approach their maximum load.
Loose L or N connection at a socket outlet - on a ring it probably wouldn't make much difference except for that particular socket. Loose L or N on a radial - better get installing your £250 AFDD's.