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Continuous lighting loads in a commercial building shall be calculated at what percent of the total VA or amperage rating of the branch circuit?
Hey Michael thanks for your question. The branch circuit load is actually calculated at 100 % based on the volt-amperes per square foot as stated in 220.12. The conductor and overcurrent device must be sized based on 125% of the continuous load as stated in 210.19 and 210.20. For conductors that value is compared with the 100% value with any applicable adjustment or correction factors applied as stated in 210.19(A)(1).
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