What is the minimum load demand calculation in kW for a range rated at 6kW and a cooktop rated at 2kW?

What is the minimum load demand calculation in kW for a range rated at 6kW and a cooktop rated at 2kW?

• A. 5.4
• B. 8
• C. 6
• D. 3.2

Answer: (A)

To determine the minimum load demand calculation for a range rated at 6 kW and a cooktop rated at 2 kW, it's important to apply the demand factors as specified in the NEC (National Electrical Code) guidelines for kitchen appliances. When calculating the demand for multiple cooking appliances, the NEC allows a reduction in demand for larger appliances. The first 12 kW of cooking demand is calculated at 100%, but for a range rated at 6 kW, this is fully counted. However, since the cooktop is also another appliance, only a portion of its demand is considered. Typically, when two cooking appliances are present, the 1st appliance, which is larger, is counted wholly (in this case, 6 kW) and the next appliance (the cooktop at 2 kW) is covered at a demand factor, which often allows for a reduction, typically around 30% for the second appliance. Calculating the demand for the cooktop gives us: 2 kW x 0.30 = 0.6 kW. Add this to the full demand of the range: 6 kW + 0.6 kW = 6.6 kW. However

To determine the minimum load demand calculation for a range rated at 6 kW and a cooktop rated at 2 kW, it's important to apply the demand factors as specified in the NEC (National Electrical Code) guidelines for kitchen appliances.

When calculating the demand for multiple cooking appliances, the NEC allows a reduction in demand for larger appliances. The first 12 kW of cooking demand is calculated at 100%, but for a range rated at 6 kW, this is fully counted. However, since the cooktop is also another appliance, only a portion of its demand is considered.

Typically, when two cooking appliances are present, the 1st appliance, which is larger, is counted wholly (in this case, 6 kW) and the next appliance (the cooktop at 2 kW) is covered at a demand factor, which often allows for a reduction, typically around 30% for the second appliance.

Calculating the demand for the cooktop gives us:

2 kW x 0.30 = 0.6 kW.

Add this to the full demand of the range:

6 kW + 0.6 kW = 6.6 kW.

However