What is the minimum calculated service load for 10-6kw electric clothes dryers installed in apartment units?

The minimum calculated service load for electric clothes dryers in apartment units is based on the typical demand for these appliances. When calculating the service load for residential clothes dryers, the National Electrical Code (NEC) provides guidance on how to determine the expected load.

For a multi-family dwelling, a common guideline is to assume that you take into account the maximum demand that will likely be used at one time. In this case, with 10 dryers each rated at 6 kW, the total potential load could theoretically reach 60 kW (10 dryers x 6 kW each). However, the calculation focuses on actual usage patterns instead of merely the total ratings.

The NEC typically allows for a demand factor to be applied, recognizing that not all dryers will be used simultaneously at full capacity. For this scenario, the maximum demand is often calculated at 30 kW for 10 dryers. This figure comes from applying a demand factor to the total load, which reflects how many dryers are actually expected to operate at the same time.

Therefore, the calculated minimum service load of 30 kW for 10 electric clothes dryers aligns with standard electrical design practices and reflects both the need for adequate electrical capacity as well as realistic usage expectations.