I was checking for voltage in the earth circuit in the bedroom as I noticed the little screws in two sockets were 'live' according to crappy neon screwdriver. (The other upstairs sockets were ok). So I used my multimeter to check the actual difference between neutral and earth. It was approx 17volts. On further investigation the two (double) sockets were connected under the floorboards with a standard 20amp junction box. Inside I found the problem - the earth from the supply was not connected (presumed fallen out, although it looks like it was put together like that at some point in the past).
Anyway, the supply wire itself is a single wire, ie a spur from somewhere. I assumed from the upstairs ring (as you would) but when I flipped the circuit breaker for the upstairs ring, it does not affect this wire (and therefore those two double sockets). It turns out the wire is from the downstairs ring (to what / from where exactly I can't tell / see)
The house has had extension work in the past so that may be where it came from, but the question is, I presume I should not leave it like this? The problem is there is no nearby handy upstairs socket to run from instead.
Anyway, the supply wire itself is a single wire, ie a spur from somewhere. I assumed from the upstairs ring (as you would) but when I flipped the circuit breaker for the upstairs ring, it does not affect this wire (and therefore those two double sockets). It turns out the wire is from the downstairs ring (to what / from where exactly I can't tell / see)
The house has had extension work in the past so that may be where it came from, but the question is, I presume I should not leave it like this? The problem is there is no nearby handy upstairs socket to run from instead.
