To be clear unless it is hundreds of metres of skinny flex, a 13A fuse will operate eventually , just not within the 0.4 seconds you might like for shock protection on a TN system, (on TT I expect the RCD to fire) .And you will start to see serious volt drop issues with all but the lightest loading first.
Even loop a round loop of 10 ohms (PSSC of 23A )will operate a 13A fuse, just not smartly, and 250m of 1mm flex would meet that.
(1mm single core being 16 ohms per km cold and perhaps 19 ohms per km hot and limit of tolerances..)
It is not a good idea, but there is some form of protection against short circuit.
To be clear unless it is hundreds of metres of skinny flex, a 13A fuse will operate eventually , just not within the 0.4 seconds you might like for shock protection on a TN system, (on TT I expect the RCD to fire) .And you will start to see serious volt drop issues with all but the lightest loading first.
Even loop a round loop of 10 ohms (PSSC of 23A )will operate a 13A fuse, just not smartly, and 250m of 1mm flex would meet that.
(1mm single core being 16 ohms per km cold and perhaps 19 ohms per km hot and limit of tolerances..)
It is not a good idea, but there is some form of protection against short circuit.
