It's usually my trick, but this afternoon it was my neighbour's turn to 'hedge cut' the cable of his hedge cutter! He totally sliced the two core cable supplying the Class 2 tool, without any contact with the nearby earth.
It transpired that the power supply arrangement was 'interesting' .... an RCD-protected B32 MCB in his house CU fed a mini-CU in garage. A B16A RCBO (I know!) in that mini-CU supplied a double RCD socket (I know, again!) in the garage. He had a cable reel extension plugged into that, with a 10A fuse (don't ask me!) in its plug. His hedge cutter was plugged into that (in the middle of his lawn - again, I know!) with a BS 1361 plug/5A fuse.
So, which one(s) of that selection of protective devices do you think/guess had operated as a result of the fault?
Kind Regards, John
It transpired that the power supply arrangement was 'interesting' .... an RCD-protected B32 MCB in his house CU fed a mini-CU in garage. A B16A RCBO (I know!) in that mini-CU supplied a double RCD socket (I know, again!) in the garage. He had a cable reel extension plugged into that, with a 10A fuse (don't ask me!) in its plug. His hedge cutter was plugged into that (in the middle of his lawn - again, I know!) with a BS 1361 plug/5A fuse.
So, which one(s) of that selection of protective devices do you think/guess had operated as a result of the fault?
Kind Regards, John