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NOTE: This is an unformatted excerpt from our online fire protection training library.

Load Calculations

Demand Factors

Part III

Article 220, Part III: Feeders and Service Load Calculations

Part III is largely about demand factors and how they apply (or do not apply) to a group of branch-circuit loads.

An example of demand factors for electric ranges on branch circuits was shown earlier, but most branch circuits are sized for the connected load without applying any demand factors.

At the level of feeders or services, it is unlikely that all of the load on all of the branch circuits would be operating at the same time (coincident). There is also the possibility of completely noncoincident loads.

The most common example of a noncoincident load might be separate circuits for heating and air conditioning, where the circuit for heating is usually not loaded at the same time as the circuit for air conditioning.

NOTE: This is an unformatted excerpt from our online fire protection training library.

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