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Ring Final

wessex
With reference to 433.1.204 and cable as installed has min capacity of 20A if protected by a 30A or 32A. If the protective device is reduced to 20A how is the new minimum as installed capacity calculated or arrived at ? I've been looking in the Electrical Installation Design Guide, but the answer is avoiding my eyes.
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    ebee:



    Rings were all the rage in my formative years


    When no doubt, a 3kW immersion heater would be supplied form a ring final circuit as well as numerous sockets. I've seen a few like that.


    Z.


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  • 0
    ebee:



    Rings were all the rage in my formative years


    When no doubt, a 3kW immersion heater would be supplied form a ring final circuit as well as numerous sockets. I've seen a few like that.


    Z.


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