Annexes Overview

Annexes are lettered A through J and provides informative only (not mandated) administrative and technical information and examples. The purpose of the annexes are to provide guidelines and premade common calculations to the user of the code.

The model shows a section of tubing with several insulated conductors installed inside of it. Annex C provides the calculations from values obtained from Chapter 9, and is used to determine if the tubing fill is compliant with the code.