Spurring sockets

Without getting the books out I suspect with 100 meters of cable 50*32/44 = around 35 meters into the ring before we could be 100% sure that three sockets would not draw over the 22A rating of the cable.
What cable, with what installation method, has a CCC of 22A?

Kind Regards, John
 
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Ok, I've not been able to check the thread for a few days and now I have some reading to do! Sorry if I've missed any details but:

The cabling I've found in the sockets and FCUs so far all appears to be 2.5 T&E
The sockets are mostly doubles but for 2 or 3
The (latest) question was really about placement of the FCU and how may cables are allowed. Obviously there are a lot of variables to consider but it sounds like the key in many cases is to add an FCU as close to the ring circuit as possible, in which case you're protecting the maximum about of stuff at 13A?
Sounds like i need a pro to really identify what's going on here?!


Is it possible for a DIYer to safely identify what is spurred from what by, for example, disconnecting the 3rd cable from a socket on the ring and noting which other sockets stop working? Or would this be considered unsafe in case the wrong cable was disconnected thus breaking the ring circuit, or causing other unknown changes?
 

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