Which Annex D example should be used to determine the service rating for a one-family home with air conditioning?

The service rating for a one-family home with air conditioning can be determined using the example provided in Annex D1(b). This example takes into account the specific requirements for residential service loads, particularly considering the impact of air conditioning on the overall electrical service rating.

In residential scenarios, air conditioning is a significant load that can influence the main service size needed to accommodate both the standard and additional electrical demands of a household. Annex D1(b) provides a guideline or framework that incorporates these factors, allowing for an accurate assessment of the necessary service rating.

Using this example ensures that the calculations consider not only the base loads for typical residential equipment but also the increased demand that comes with air conditioning, ensuring that the service supplied is adequate and safe for the entire home. This approach aligns with best practices and NEC guidelines for residential service calculations.