What load does the example in Informative Annex D Example D6 primarily address?

The example in Informative Annex D Example D6 primarily addresses electric ranges because it is specifically designed to illustrate the load calculation and requirements associated with this type of equipment. Electric ranges typically have a unique load profile and demand due to their heating elements, which can draw significant power during operation. This example would cover calculations involving wattage, circuit sizing, and other aspects related to ensuring proper electrical supply for electric ranges in various settings. Understanding this load is crucial for electricians as it helps ensure compliance with the National Electrical Code (NEC) and safe installation practices.

The context surrounding the other options, such as residential water heaters, commercial refrigeration units, and lighting systems, highlights that while these are indeed significant electrical loads, the specifics of Example D6 focus on the characteristics, requirements, and considerations unique to electric ranges. This emphasis allows students and professionals to grasp the particularities involved in planning and implementing electrical systems for this type of load.