Commercial General-Lighting and Receptacle Load (NEC 220.12 / 220.44)
Computes the commercial general-lighting load (area x the Table 220.12 unit load) plus the general-use receptacle load at 180 VA per strap (220.14(I)) with the 220.44 demand factor (100% of the first 10 kVA, 50% of the remainder), then the total VA and amps. The 125% continuous factor is applied at the OCPD; the energy code may set the lighting load and the AHJ governs.
Formula and source
lighting_va = area x unit load (Table 220.12); recep_va = straps x 180 VA (220.14(I)); recep_demand = recep_va <= 10 kVA ? recep_va : 10000 + 0.50 x (recep_va - 10000) (220.44); total = lighting + recep_demand; amps = total / V.
Commercial general-lighting and receptacle load, NEC 2023 Table 220.12, 220.14(I), and 220.44, by name.
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