Examples of branch circuit calculations can be found in which NEC section?

The correct answer highlights the significance of NEC Informative Annex D, which provides explanations and examples related to branch circuit calculations. This section is particularly useful for electricians and other professionals who need to understand how to properly design and calculate branch circuits. It includes informative materials that aid in applying the NEC (National Electrical Code) safely and effectively.

In contrast, other sections serve different purposes. Appendix A, for example, contains information regarding the general structure of the NEC and doesn't specifically focus on branch circuit calculations. Chapter 9 contains tables that pertain to various aspects of the electrical code, including conductor properties and ratings but lacks the detailed examples specific to branch circuit calculations. Article 300 outlines general requirements for wiring methods and installation practices, but it does not focus on calculation examples. Understanding the distinction among these sections helps in navigating the NEC more effectively and applying the correct resources for specific topics.