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Additional connection to earth 411.4.2

Simon Mitchell

Hi,

Regulation 411.4.2 regarding TN systems now includes a recommendation to install an additional connection to earth using an earth electrode. There is no indication within the regs why you would or wouldn't fit one. The guidance on language on p18 of the regs equates "recommendation" to "should". Therefore we should install an earth electrode to all TN-S and TN-C-S systems.

I can't find any discussion on this when searching but it seems quite a big change to previous regs. Should we be installing earth rods as a standard?

Simon

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    If you have metallic water or gas supplies, it will hardly make any difference.

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    If you have metallic water or gas supplies, it will hardly make any difference.

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