What is the calculated receptacle load for a 32,000 square foot office with 120 20-ampere receptacle outlets?

What is the calculated receptacle load for a 32,000 square foot office with 120 20-ampere receptacle outlets?

• A. 21,600 VA
• B. 28,000 VA
• C. 32,000 VA
• D. 39,600 VA

Answer: (B)

To determine the calculated receptacle load for the office, you can use the formula for calculating the demand load for receptacle outlets. According to standard electrical design practices, a common method involves using the total number of receptacle outlets and their amperage rating to find the total load in volts-amperes (VA). In this scenario, there are 120 receptacle outlets rated at 20 amperes each. The total potential load for all outlets can be calculated as follows: 1. First, calculate the total amperage for all receptacles by multiplying the number of outlets by the amperage rating: \[ 120 \text{ outlets} \times 20 \text{ amperes} = 2400 \text{ amperes} \] 2. Next, convert this total amperage into VA (voltage times amperage). In a typical setup, the voltage is assumed to be 120 volts (for standard receptacles): \[ 2400 \text{ amperes} \times 120 \text{ volts} = 288,000 \text{ VA} \] 3. However, for load calculations, especially for demand purposes, the NEC (National Electrical Code) allows applying a

To determine the calculated receptacle load for the office, you can use the formula for calculating the demand load for receptacle outlets. According to standard electrical design practices, a common method involves using the total number of receptacle outlets and their amperage rating to find the total load in volts-amperes (VA).

In this scenario, there are 120 receptacle outlets rated at 20 amperes each. The total potential load for all outlets can be calculated as follows:

1. First, calculate the total amperage for all receptacles by multiplying the number of outlets by the amperage rating:

[

120 \text{ outlets} \times 20 \text{ amperes} = 2400 \text{ amperes}

]

2. Next, convert this total amperage into VA (voltage times amperage). In a typical setup, the voltage is assumed to be 120 volts (for standard receptacles):

[

2400 \text{ amperes} \times 120 \text{ volts} = 288,000 \text{ VA}

]

3. However, for load calculations, especially for demand purposes, the NEC (National Electrical Code) allows applying a