Could an unfused R.C.D. protected spur, from a complient ring final circuit, supplying a single outdoor socket via 1.5mm2 6242Y cable of max. length 300mm through a brick wall from an indoor socket outlet be considered compliant?
I was just reading the thread again and it is TT. The Earth fault current is therefore not a consideration unless there are metal service pipes and other properties which are TN, which seems very unlikely. I would like the measured values though!
The P.S.C.C. at the distribution board is approx. 0.89 kA L to N. I have no L to E reading as my tester is limited to 50 Ohms max. The physical condition of the earth electrode, well the top of it anyway, was inspected along with the main earthing conductor. The installation dates back to the 90s. Both R.C.D.s of the split load board were tested and operated at 29mS @ 5 X I delta n.
I was just reading the thread again and it is TT. The Earth fault current is therefore not a consideration unless there are metal service pipes and other properties which are TN, which seems very unlikely. I would like the measured values though!
The P.S.C.C. at the distribution board is approx. 0.89 kA L to N. I have no L to E reading as my tester is limited to 50 Ohms max. The physical condition of the earth electrode, well the top of it anyway, was inspected along with the main earthing conductor. The installation dates back to the 90s. Both R.C.D.s of the split load board were tested and operated at 29mS @ 5 X I delta n.
