Load calculation for household electric ranges uses which table?

Load calculation for household electric ranges uses which table?

• A. Table 220.55 for appliances in dwelling units
• B. Table 220.55 for appliances in instructional programs
• C. Both A and B
• D. Neither A nor B

Answer: (A)

The main idea is that NEC load calculations for household cooking appliances use the table that applies specifically to appliances in dwelling units. This table provides demand factors for electric ranges, which helps you size feeders and service by accounting for the fact that not all ranges draw full power at the same time. Since a dwelling unit is different from an instructional program or other occupancy, the table used for dwelling units is the correct reference. Therefore, the appropriate choice is the table for appliances in dwelling units.

The main idea is that NEC load calculations for household cooking appliances use the table that applies specifically to appliances in dwelling units. This table provides demand factors for electric ranges, which helps you size feeders and service by accounting for the fact that not all ranges draw full power at the same time. Since a dwelling unit is different from an instructional program or other occupancy, the table used for dwelling units is the correct reference. Therefore, the appropriate choice is the table for appliances in dwelling units.