i really can't see a way to get them out from under the floor and then i'd have to work the wires across the lath and plaster ceiling and joists. I'm figuring i can suck something on string through the pipe with a vacuum cleaner and pull the cable through.
Redundant copper pipe as conduit?
- Thread starter ATTQ
- Start date
What about if the Neutral is also touching the mud.
Then that might be able to trip the OPD and disconnect the circuit.
However if the neutral becomes disconnected then the same problem as above will occur.
I doubt very much thst one would get enough current through the soilto trip an OPD.
Very unlikely to trip yes.
However, EFL did say what if the "neutral touched the mud" so I assumed he was meaning the live touching the mud while the neutral was touching it too with it being damaged. In that case, the MCB could trip.
Yes, he may have meant that. However, even if he did, I think my previous comment still applies, namely ....
... don't forget that to trip, say, a B32 MCB may require 160 A to trip. That implies a total loop impedance of about 1.44 Ω (at 230V) - and most of that may well already be taken up by the wiring of the loop all the way back to to the DNOs transformer (particularly given the probably long mower lead, maybe of marginal CSA) hence requiring the impedance through the mud to be extremely low to allow 160 A to flow.
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