An office building has a calculated receptacle load of 65 kVA, what is the permitted demand for these receptacles?

An office building has a calculated receptacle load of 65 kVA, what is the permitted demand for these receptacles?

• A. 65 kVA
• B. 361 kVA
• C. 37.5 kVA
• D. 55 kVA

Answer: (C)

Understanding demand it is about reflecting typical usage rather than assuming every receptacle is drawing full power at the same time. For office receptacle loads, there is a factor used to estimate the maximum expected demand that is less than the total calculated load. Applying that factor to the calculated receptacle load gives the permitted demand. Here, 65 kVA multiplied by the demand factor (about 0.58) yields roughly 37.7 kVA, which rounds to 37.5 kVA. That’s why 37.5 kVA is the correct permitted demand. Using the full 65 kVA would ignore the diversification of usage, and the other numbers come from applying incorrect multipliers or misinterpreting the load.

Understanding demand it is about reflecting typical usage rather than assuming every receptacle is drawing full power at the same time. For office receptacle loads, there is a factor used to estimate the maximum expected demand that is less than the total calculated load. Applying that factor to the calculated receptacle load gives the permitted demand.

Here, 65 kVA multiplied by the demand factor (about 0.58) yields roughly 37.7 kVA, which rounds to 37.5 kVA. That’s why 37.5 kVA is the correct permitted demand. Using the full 65 kVA would ignore the diversification of usage, and the other numbers come from applying incorrect multipliers or misinterpreting the load.