What is the minimum calculated service load for 10-14.7 kW electric ranges installed in dwelling units?

The minimum calculated service load for 10-14.7 kW electric ranges installed in dwelling units is based on the National Electrical Code (NEC) guidelines, which specify how to determine the appropriate load calculations for various appliances.

For electric ranges, the NEC provides specific criteria to ensure that the electrical service can handle the demand posed by the appliance. For ranges with power ratings in the specified range of 10-14.7 kW, the standard approach is to use 12 kW as the baseline for calculating loads. This results in a calculated load that must be adequately supported by the service equipment, and this typically is presented in multiple amperage ratings or other factors that ensure sufficient power availability.

In this case, the value of 28.75 kW represents a recommended guideline that factors in additional load considerations beyond just the base range load to accommodate potential simultaneous use of other circuits. This loading calculation ensures that the dwelling has enough capacity to prevent overloads during typical usage scenarios.

Thus, for a dwelling unit with an electric range in the specified kilowatt range, the minimum calculated service load is set accurately at 28.75 kW to provide reliable operation while observing NEC standards for safety and performance.