Branch-Circuit Load Calculations, Part 1

Branch-Circuit Load Calculations, Part 1

Let’s take a closer look at the lighting load requirement.

The NEC requirements for branch-circuit load calculations are in Art. 220, Part II. These cover three classifications of loads:

  • Lighting loads for specified occupancies (220.12)
  • Other loads for all occupancies (220.14)
  • Loads for additions to existing occupancies (220.16)

Let’s take a closer look at the lighting load requirement now.

The lighting loads must be of a minimum size, depending upon the occupancy. To find the

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