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Are RCD's Required?

Nano Brewery
Hi, looking to understand if an RCD would be a required regulation (and/or just highly recommended) in the following situation.  The additional cost of installing four or five 3-Phase RCDs is quite substantial and I would prefer to avoid it if still deemed as safe and not legally required.  Earthing system is TN-C-S.


For connecting up 4x Immersion Elements (9kW, 9kW, 6kW, 3kW) in Brewery Tanks I am looking at either:


A.  SWA Cable clipped direct to basket from the Control Panel to IP rated Plugs/Sockets mounted on the wall.  Then floating SY Cable (recommended by electrician) from the wall to the Tanks, which is about a 2m run.  Thinking Plugs/Sockets just to make life easy if I ever want to move things around and also for easier access for cleaning.


B.  Same as above but swapping the Plugs/Sockets for Isolators.


Look forward to your feedback and opinions.  Cheers.
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  • 0
    mapj1:

    Having said that, where liquids and electrics meet RCDs are a very nice thing to have, even if the RCD covers more than one immersion heater.

    (https://www.tlc-direct.co.uk/Products/WYWRS32slash4.html) sort of sized object.


    Cheers.  I was hoping to keep all elements on separate circuits, so if one develops a fault the other 3 will continue to operate, and any fault will be easier to detect.  At present the Control Panel has 6 individual circuits, with Rail Mounted Cartridge Fuses and Contactors installed on each.  I understand that the Control Panel can be fed either via a Henley Block or from the 3-Phase Distribution Board?  Wondering if an enclosure with RCD would be an option?... https://www.cef.co.uk/catalogue/products/1051602-3-module-insulated-ip65-enclosure


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  • 0
    mapj1:

    Having said that, where liquids and electrics meet RCDs are a very nice thing to have, even if the RCD covers more than one immersion heater.

    (https://www.tlc-direct.co.uk/Products/WYWRS32slash4.html) sort of sized object.


    Cheers.  I was hoping to keep all elements on separate circuits, so if one develops a fault the other 3 will continue to operate, and any fault will be easier to detect.  At present the Control Panel has 6 individual circuits, with Rail Mounted Cartridge Fuses and Contactors installed on each.  I understand that the Control Panel can be fed either via a Henley Block or from the 3-Phase Distribution Board?  Wondering if an enclosure with RCD would be an option?... https://www.cef.co.uk/catalogue/products/1051602-3-module-insulated-ip65-enclosure


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