Hi guitarist been doing the very same thing at my brothers
its all JBs under the floor boards with a single stranded imperial T/E down to each socket think i have found 2 that have with 2 cables in and these could possibly be a spur off to another socket
Is it acceptable for the ring to be jointed under the boards and individual legs to sockets
end to end values were
L-L= 0.23ohms
N-N= 0.23ohms
Cpc - cpc =0.41
step 2
at the sockets that i suspect to be a spur of a jb under the boards
i was getting 0.13ohms
at others I was getting anything upto 0.59ohms
few of these were worn socket tubes on fronts or loose terminals but some are still high
Its deffo not a perfect ring final circuit
same for step 3
there is 4 seperate cables for the lighting circuits at the board
a radial to a JB with 3 radials from that to 3 single sockets so these will be split and put on 16A
I have been carrying out a PIR and then remedial work also a new shed/ workshop supply
the list is endless and everytime i look at something i see problems and find faults etc
replaced the existing overloaded and many fault wooden backed Wylex fuseboard
4 ways and as many as 3 or 4 circuits in each
also a volex split load 7 unprotected and 5 protected single 30mA RDd which had been poorly installed all Ip ratings not met and it was a
I have replaced them both with a single BG 13 way dual RCD with 3 ways on the unprotected side and the rest protected by the 2 RCDS
the original wiring is the best its all the additions and alterations that have the problems and faults
the new kitchen he had about 8-10 yrs ago is were the worst of all
10K kitchen and a DIYer could ahve done better with the wiring and fitting the kitchen
think the Ring for the house was just added at later date by ex owner or something
I cant even use the half split method lol
when doing a CCU change what is the extent i have to go to to ensure all circuits are compliant and what is the limit of my liability with it all
there is no way at present he will allow any removal of wooden floors , fitted wardrbes Kitchen cupboards etc etc
I was thinking of splitting the ring into 2 radial 16A circuits but doubt it will be possible without removal of floors etc