Greetings, I am 3 class nights away from finals for Part 1 of the NEC.
We are doing service feeder calcs for a single family dwelling and for the life of me, I cannot find a demand factor listed in the code.
What I am trying to locate and verify is the 25% demand factor used in calculating the "Largest appliance motor".
For example, the diswasher, we were given a 1kW D/W and told to get the largest motor calc for that D/W simply multiply the 1kW by 25% (1000va*0.25=250va).
The 250VA would then be added to the loads.
Where is this calculation supported in the NEC 2008 code?