Article 626, re. refrigerated trailers

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Skubie

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Sacramento, CA
Hi All,

The Article specifies a load factor of 0.2 for my climate zone, allowing for the cycling and indeterminacy of these refrigeration loads. My question is, where in the power supply does the load factor get applied?

Certainly, each branch circuit must be fully rated - 480V/30A. If I have 10 circuits, that's 300A. BUT, is my disconnect 300A or is it 60A (300A x 0.2 = 60A).How far upstream of the branch circuit can I down size my system according to the load factor?

Thanks for any answers on this, especially if you can cite a job in CA that was permitted and signed off.
 
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