Just leave the ring connected, and put each end of the ring on a separate 16 amp MCB. If the circuit becomes open on one end while over current for one breaker, it trips.
Having two points of supply to one circuit I believe is illegal in most places, it raises a real safety hazard.
I was asking in the TECHNICAL sense, not the code/legal sense. If a ring is legal in UK, they (and perhaps they alone) might consider it to be just as OK to have separate 15 amp breakers on each end of the ring, compared to both end of the ring on a common 30 amp breaker.
The only issue I see being a technical problem is making sure the two 15 amp breakers are on the same phase when dealing with a 400/230 three phase supply. If not, you're gonna have a couple breakers pop off real fast.
The other issue is economic ... TWO breakers.
I'd rather just see them drop rings altogether (since I don't consider having both ends on the same breaker to be safe). But I don't live in UK, so it's not my issue.
