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    miltonvhf's Avatar
    miltonvhf Posts: 1, Reputation: 1
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    #1

    Jun 12, 2010, 07:45 AM
    How to design a 120 Amps multiple master metering panel
    I have to prepare an assignment for an examination in australia about a complete design to a multiple master metering commercial electrical installation.
    The specifications are as follow.
    1. The maximum demand 470 Amps @ 3 phase 415 volts.
    2. Sub main maximum demand 120 Amps @ 3 phase 415 volts , 05 shops to be supplied from the network operators 470 amps connection.
    3. I would like to know about arrangement for multiple master metering panel including wire sizes and breaker capacities.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Jun 12, 2010, 05:24 PM
    I need to direct you to the Australian electric code, of which you must have a copy handy if your taking a class.

    I do not believe anyone here is familiar with it.

    And I am unable to find much on the internet.

    The National Electric Code used in the USA may be similar , but I am sure the values of derating factors are a bit different, and this is nothing to be inaccurate about.

    If you can find a link to read it on line, perhaps we can help.

    Reviewing the local electric utility installation requirement will help also.
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