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-   -   Service amperage (https://www.askmehelpdesk.com/showthread.php?t=161143)

  • Dec 10, 2007, 02:51 AM
    ViVid
    Service amperage
    I am stumped on this I need to now the total net load and the total load service for a 1800 square foot home with 11 kW range and a 6 kW 240 V dryer I have looked at the back of the NEC and I need to check my answers thank for any help?:mad:
  • Dec 10, 2007, 03:58 AM
    tkrussell
    Assuming no heat or AC, I arrive at 80.89 amps.

    The range only needs to be calculated at 8Kw.

    The dryer at 6Kw.

    3 watts per square foot x 1800 SqFt=5400 watts+3000w small appliance+1500 laundry.

    First 3000 watts at 100% plus the remaining at 35%+8Kw+6Kw/ 240 volts=80.89 amps
  • Nov 4, 2009, 09:06 PM
    djelbachatu

    What is the minimum number of 120-volt, 2 wire branch circuit that would be required for this home?
  • Nov 5, 2009, 03:52 AM
    tkrussell
    3 watts per square foot x 1800 SqFt = 5400 watts/120 volts = 45 amps / 15 amps per circuit = minimum of 3 -15 amp general purpose lighting circuits.
  • Nov 5, 2009, 07:30 AM
    donf

    The keyword is TK's last post is "Minimum".

    You can put more circuits in to meet your needs, but you cannot put less then 3 circuits.

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