The client can opt-out of having surge protection fitted if they so wish. I personally have only ever fitted them at board changes, (or if req'd by 443.4.1 (i) or (iii), which I have yet to come across in my line of work).
Reply to SPD on old consumer unit? in the Certification NICEIC, NAPIT, Stroma, BECSA Forum area at ElectriciansForums.net
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