When sizing the combined connected load for two non-coincident loads, you should use which of the following?

When sizing the combined connected load for two non-coincident loads, you should use which of the following?

• A. smaller
• B. larger
• C. sum
• D. average

Answer: (B)

When two loads don’t operate at the same time, you size for the larger load rather than the sum. Since they aren’t running simultaneously, the system only needs to handle the maximum single-load condition. For example, if one load is 40 A and the other is 60 A, the feeder should be sized to 60 A, not 100 A. Adding them would assume they coincide, which isn’t the case here, and using the larger avoids overdesign while still meeting demand when either load is active.

When two loads don’t operate at the same time, you size for the larger load rather than the sum. Since they aren’t running simultaneously, the system only needs to handle the maximum single-load condition. For example, if one load is 40 A and the other is 60 A, the feeder should be sized to 60 A, not 100 A. Adding them would assume they coincide, which isn’t the case here, and using the larger avoids overdesign while still meeting demand when either load is active.