Multi Family Dwelling Load Calculation

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Gents,
I have a two quick questions...
  • With a standard load calculation format, please explain to me how one would account for a range load for a 15 unit apartment complex with the each range at 13 KW? I am a little unclear as to using column "C" of T250.55, whether I would use the 30KW as the total load or whether I would calculate the load at 5% over 12KW (1KW * 5%=5%) then (.05 * 8KW = 400) thus (8KW + 400 = 8400W) and this lands me in column "B" which would be total range load at 32 KW for a 15 unit multi family dwelling with 13KW range load for each unit.
  • 220.53 Appliance Loads, demand factor of 75% to the name plate of four or more connected appliances. Does this also include the hot water heater? I believe that the hot water heater is a fastened in place appliance and thus falls under this category.

Does anyone have a process for load calculations, whether standard or optional, that they like to use and would like to share?


Thanks for your time, first time poster long time reader! Glad to be apart of the group!
 

Smart $

Esteemed Member
Location
Ohio
15 units at 13kW is 30kW × (100% + (13-12kW) × 5%) = 31.5kW

A typical water heater is a fastened-in-place appliance.

Welcome to the forum, Fishn sparky. :thumbsup:
 
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