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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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  • Former Community Member
    0 Former Community Member
    The regulation falls under the heading of PROTECTION AGAINST OVERLOAD CURRENT.


    And your point is?

    It is impossible to design in good use of a ring final circuit as it is impossible to determine just what the user will plug in and where


    There's normally quite a good clue from where the plumber has left connections for the washing machine and dish washer....


    Regards


    BOD
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  • Former Community Member
    0 Former Community Member
    The regulation falls under the heading of PROTECTION AGAINST OVERLOAD CURRENT.


    And your point is?

    It is impossible to design in good use of a ring final circuit as it is impossible to determine just what the user will plug in and where


    There's normally quite a good clue from where the plumber has left connections for the washing machine and dish washer....


    Regards


    BOD
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