Which of the following does NOT need to be known to complete a load survey?

Which of the following does NOT need to be known to complete a load survey?

• A. The voltage of the service
• B. Open transition or closed transition
• C. The building's typical load profile
• D. Peak demand

Answer: (B)

A load survey focuses on the amount and timing of electrical demand to size equipment and plan capacity. You need to know the service voltage to match equipment ratings, the building’s typical load profile to understand how usage varies over time, and the peak demand to ensure the system can handle the highest load. The way power is transferred between sources—open transition (break before make) or closed transition (make before break)—affects only how the supply switches during source changes, not the magnitude or timing of the loads themselves. So it’s not required to complete a load survey.

A load survey focuses on the amount and timing of electrical demand to size equipment and plan capacity. You need to know the service voltage to match equipment ratings, the building’s typical load profile to understand how usage varies over time, and the peak demand to ensure the system can handle the highest load. The way power is transferred between sources—open transition (break before make) or closed transition (make before break)—affects only how the supply switches during source changes, not the magnitude or timing of the loads themselves. So it’s not required to complete a load survey.