What is the demand load for a clothes dryer with a nameplate rating of 4,750 VA?

What is the demand load for a clothes dryer with a nameplate rating of 4,750 VA?

• A. 3,500 VA
• B. 4,500 VA
• C. 5,000 VA
• D. 5,500 VA

Answer: (C)

When sizing a dwelling’s electrical load, clothes dryers are treated as a fixed demand of 5,000 VA per unit. The nameplate rating (even if 4,750 VA) is not used to reduce this fixed demand for the purpose of load calculations. This standard value accounts for startup surges and ensures the service is sized to handle typical dryer use. So, for a dryer with a 4,750 VA nameplate, the demand load used in calculations is 5,000 VA. The other figures don’t reflect this fixed-demand rule for dryers in dwelling-unit calculations.

When sizing a dwelling’s electrical load, clothes dryers are treated as a fixed demand of 5,000 VA per unit. The nameplate rating (even if 4,750 VA) is not used to reduce this fixed demand for the purpose of load calculations. This standard value accounts for startup surges and ensures the service is sized to handle typical dryer use.

So, for a dryer with a 4,750 VA nameplate, the demand load used in calculations is 5,000 VA. The other figures don’t reflect this fixed-demand rule for dryers in dwelling-unit calculations.