Went to a customer today as her fuse (rewirable 30A) on downstairs ring was blowing with a flash.
After a bit of tracing in the terrace house I found that the ring went from socket to socket to the furthest point away from the cu (which is by the front door) to the kitchen. All interconnections to this point passed ir testing and continuity. However the return leg from this point has 0.003Mohm on the ir test.
This run is along a party wall to the next door property that have recently undergone renovations.
I don't think anything they could reasonable do would effect my customers installaton. but I wonder what has become of the this cable run.
Rats? Next door tapping in? a hidden flooded junction box?
I can't get tot the cable as new parkae flooris laid over floorboards. I have requested that it is lifted and I will replace the run. In the meantime I have derated the fuse to 15A and left it as a radial.
Any ideas on the damage to the cable. Oh and one more fact. there is continuity from one end of the cable to the other so it is not snapped.
Answers on a forum please
After a bit of tracing in the terrace house I found that the ring went from socket to socket to the furthest point away from the cu (which is by the front door) to the kitchen. All interconnections to this point passed ir testing and continuity. However the return leg from this point has 0.003Mohm on the ir test.
This run is along a party wall to the next door property that have recently undergone renovations.
I don't think anything they could reasonable do would effect my customers installaton. but I wonder what has become of the this cable run.
Rats? Next door tapping in? a hidden flooded junction box?
I can't get tot the cable as new parkae flooris laid over floorboards. I have requested that it is lifted and I will replace the run. In the meantime I have derated the fuse to 15A and left it as a radial.
Any ideas on the damage to the cable. Oh and one more fact. there is continuity from one end of the cable to the other so it is not snapped.
Answers on a forum please