Hi All. I had a job which was going to be a 'quicky' fault finding and repairing a couple of sockets, then it came to the testing..... The consumer unit gave me no cause for alarm but was all labelled up wrong, so it turned out there were far more sockets and square meterage on this ring final than I first thought. So I get, on end to end continuity (2.5/1.5 T&E) r1=1.41 ohms, rn=1.43 ohms, r2=2.38 ohms. Then from that fig 8 test a range of R1+R2 from 1.53 to 2.61 ohms. Way too high. Nulled the leads (again). Checked again... If it was just one of those end to end readings that was too high, I would set about looking for a high resistance connection, but as the r1 is so similar to rn and the r2 is about right too - it seems unlikely that there is a high resistance joint in all three? If I reverse input those readings to get a estimated cable length it comes out at around 190 metres! The house is not particularly old - about 10 years I think. The floor area of the circuit is round about the 100 square metre mark, maybe more, and includes ground floor and first floor rooms - so the cable length could well be pretty high. On the limits at guess - but not way over as I have found. Splitting this all down would be no easy task, and I've been told the wiring was 'inspected' three years ago during a change of ownership. So I'm looking to avoid the disruption, if possible. If anyone has any advice or ideas I'd certainly appreciate it - big time. Are there any factors which might have given me misleading high readings?