The pic is in Ireland. I assume, perhaps incorrectly, that the DNO (DSO) are bound by law to minimise danger in their network. In this case I am referring to the requirement to keep neutral effectively and reliably connected to earth. IS10101 2020 gives two examples of achieving this. One is to connect the PEN to earth to minimise risk in the event of a PEN break. The other demands that RB/RE is less than or equal to 180 (where Uo is 230v). RB being their combined electrode resistance and RE the consumer’s connection with earth via extraneous parts. Either way it seems to me that good solid connection of neutral to earth is required.
The pic is in Ireland. I assume, perhaps incorrectly, that the DNO (DSO) are bound by law to minimise danger in their network. In this case I am referring to the requirement to keep neutral effectively and reliably connected to earth. IS10101 2020 gives two examples of achieving this. One is to connect the PEN to earth to minimise risk in the event of a PEN break. The other demands that RB/RE is less than or equal to 180 (where Uo is 230v). RB being their combined electrode resistance and RE the consumer’s connection with earth via extraneous parts. Either way it seems to me that good solid connection of neutral to earth is required.
