Where can examples of common calculations usually be found?

Examples of common calculations can typically be found in Annex D of the National Electrical Code (NEC). This section is specifically designed to provide practical examples and calculations that illustrate how to apply the code requirements. Annex D includes detailed, worked-out examples, making it easier for practitioners to understand and utilize the calculations in real-world scenarios.

The main body of the NEC focuses primarily on regulations and requirements, while the introduction section usually provides background information and context about the code. An appendix may include supplementary information or additional materials, but it is Annex D that is explicitly dedicated to calculations, serving as a key resource for electricians and engineers as they navigate code compliance and installation practices.