Conversion to P.M.E. Earthing.

Zoomup over 4 years ago

In which situations would it be beneficial to retain connected earth electrodes after a TT earthed installation is converted to a P.M.E. earthed installation?

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0 gkenyon over 4 years ago

If an installation has battery storage or another form of generation, and can operate in what's termed island mode (BS HD 60364-8-2 or Chapter 82 of the DPC for AMD2 to BS 7671:2018) then the installation will require its own earth electrode, but it's recommended to remain connected to the connected mode means of earthing. Recent WM article on this subject here: https://electrical.theiet.org/wiring-matters/years/2021/84-march-2021/island-mode-earthing-arrangements-new-guidance-in-the-second-edition-of-the-iet-code-of-practice-on-electrical-energy-storage-systems/
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0 gkenyon over 4 years ago

If an installation has battery storage or another form of generation, and can operate in what's termed island mode (BS HD 60364-8-2 or Chapter 82 of the DPC for AMD2 to BS 7671:2018) then the installation will require its own earth electrode, but it's recommended to remain connected to the connected mode means of earthing. Recent WM article on this subject here: https://electrical.theiet.org/wiring-matters/years/2021/84-march-2021/island-mode-earthing-arrangements-new-guidance-in-the-second-edition-of-the-iet-code-of-practice-on-electrical-energy-storage-systems/
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Conversion to P.M.E. Earthing.

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