No correct way of isolating part of a ring main as it would become 2 interconnected radial circuits and the mcb would be to large to protect the cables.
You shouldn't really spur off a ring main more than 13a as brightspark points out but the other option is just put in 1 spur for the light and one for the twin socket on a dual box next to each other.
You don't need to put a socket at the point you spur from just the spurs.
Or run a new circuit from the db to the conservatory.
You couldn't bridge the gap so to speak as this would end up a figure 8 circuit in effect, change
Over would work but be complicated.
No 13a per spur and you can only have as many spurs off that circuit as the amount of ring point's.
Could you find an easy route round the house for a dedicated circuit?
If I was going to be using heavy load gear in there I would look at that as the best option.
If it's just a few hand electric tools then just extending the ring will be perfectly adequate.
You couldn't bridge the gap so to speak as this would end up a figure 8 circuit in effect, change
Over would work but be complicated.
No 13a per spur and you can only have as many spurs off that circuit as the amount of ring point's.
noso a figure 8 isnt allowed?
Hence my original question about "bridging" the gap - either permanently, or with a changeover switch.
More contacts to get burned / overheated / eroded / twisted over time and eventually the ring would be two seperate bits with unknown loading on each side. That kind of thing can catch you out.