- Reaction score
- 13,478
Hang on a minute. 1.4kΩ ring L to MET? That's a big fault! At 230V it would dissipate 230²/1400=38W i.e. the heat of a largish soldering iron and hence probably show itself pretty soon (a carbonised rat will only function as a heating element for so long before either crumbling apart or setting fire to the house). Alternatively it is a mis-connected load that is running to earth instead of neutral but surely then the RCD would have tripped immediately it was connected.
I'm assuming the neutrals were disconnected at the CU when you did this test of course? Otherwise a normal load still plugged in somewhere will show a reading to E as well as N via the supply.
Is the IR fail at each faulty leg the same resistance? If so, then it does sound like one fault with multiple legs incestuously interconnected to it. If not, then I think Mr Rat will have had a hand (or tooth) in creating this problem, as he is known to enjoy sampling multiple cables in a single installation in search of the tastiest.
I'm assuming the neutrals were disconnected at the CU when you did this test of course? Otherwise a normal load still plugged in somewhere will show a reading to E as well as N via the supply.
Is the IR fail at each faulty leg the same resistance? If so, then it does sound like one fault with multiple legs incestuously interconnected to it. If not, then I think Mr Rat will have had a hand (or tooth) in creating this problem, as he is known to enjoy sampling multiple cables in a single installation in search of the tastiest.