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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


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    Simon Barker:




    whjohnson:

    Apparently SPDs don't protect sensitive circuits on the secondary side of an isolation transformer, although the transformer itself supposedly provides some protection. Since most of the sensitive electronics usually lies after secondary winding one does wonder if these things are actually of any practical value.




     

    But the sensitive electronics won't do much if the power supply has blown.



    The thing is, would such devices be quick eniough to prevent a spike being induced in the secondary before the electronics on the south side of that were fried?




     

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  • 0

    Simon Barker:




    whjohnson:

    Apparently SPDs don't protect sensitive circuits on the secondary side of an isolation transformer, although the transformer itself supposedly provides some protection. Since most of the sensitive electronics usually lies after secondary winding one does wonder if these things are actually of any practical value.




     

    But the sensitive electronics won't do much if the power supply has blown.



    The thing is, would such devices be quick eniough to prevent a spike being induced in the secondary before the electronics on the south side of that were fried?




     

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