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S.P.D.s and Populated Consumer Units.

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Are new populated consumer units with S.P.D.s fitted designed to mainly protect the sensitive electronic equipment downstream of the S.P.D.s WITHIN THE CONSUMER UNIT? Is that the makers' MAIN intention as R.C.D.s, R.C.B.Os and other sensitive electronic devices can be damaged by Voltage surges, as compared to basic protective devices like wire or cartridge fuses or more basic M.C.B.s?

https://www.youtube.com/watch?v=5OuirPKoY0c


Z.
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    all equipment in DBs plus downstream as far as switches and sockets should be category III, meaning they can withstand 4kV (where U0 is 230V). Any transients above this might damage any DB equipment, not just RCDs etc. For comparison, smart meters (which have delicate electronics too) are cat IV and must withstand 6kV.
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    all equipment in DBs plus downstream as far as switches and sockets should be category III, meaning they can withstand 4kV (where U0 is 230V). Any transients above this might damage any DB equipment, not just RCDs etc. For comparison, smart meters (which have delicate electronics too) are cat IV and must withstand 6kV.
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