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RCD Protection For Old Installations

Former Community Member over 2 years ago

Hey there,

Would like to hear your thoughts on the case.

If the installation from the 70s or 80s with old mem board has no rcd protection for neither sockets nor lights (with metal front plate switches, which are connected to CPC), taking into consideration that the installation was working cheerfully since the old days till today and all Zs values are within the range of the installed breakers and overall good condition. Would this require an upgrade to rcd protection as of the 18th edition or would class as C3 as of best practice guide 4 suggest on eicr?

How would you approach the situation?

Regards,

Karolis

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0 Former Community Member over 2 years ago

I know, as of new regulations I would say C2, but on the other hand, it has been there since 70s or so, and for no RCD protection in the best practice guide suggests C3. I would suggest upgrading the CCU altogether, but don't have time to do it myself, could swap MCBs to RCBOs, but to find MEM RCBOs is hard and if you do it's expensive, I've seen on eBay used £40 apiece and don`t think so the landlord is up for it.
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0 Former Community Member over 2 years ago

I know, as of new regulations I would say C2, but on the other hand, it has been there since 70s or so, and for no RCD protection in the best practice guide suggests C3. I would suggest upgrading the CCU altogether, but don't have time to do it myself, could swap MCBs to RCBOs, but to find MEM RCBOs is hard and if you do it's expensive, I've seen on eBay used £40 apiece and don`t think so the landlord is up for it.
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RCD Protection For Old Installations

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