General lighting load table 220.12 Table 220.12 has been used for many code cycles when performing load calculations Dwelling = 3 va per sq
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X 3 va = 7,200 va sq
Is outside dimensions excluding open porches, garages, carports, and unfinished basements, or unused or unfinished spaces not adaptable for future use.
Lighting load calculator calculate optimal lighting requirements for any space The total square feet is based on the outside dimensions of the dwelling, but doesn't include open porches, garages, or unused or unfinished spaces not adaptable for future use. A practical example to better illustrate this method, let’s consider a dwelling unit encompassing 1,500 square feet with specified circuits and appliances The floor area is required to be calculated using the outside dimensions of the dwelling unit, apartment or other area that may be involved
Each floor level must be. Nec standard electrical load calculation for single family dwellings **** (only for service ratings of 120/240v, 225 amps max) A new exception was added to 220.12 to allow lighting load calculations to be determined in accordance with locally adopted energy codes
