After calculating ampacity, where in the NEC should you refer to next?

After calculating ampacity, the next step is to refer to Table 310.16 in the National Electrical Code (NEC). This table provides the ampacity ratings for conductors based on various factors such as the type of insulation, the number of conductors in a raceway, and the ambient temperature. Understanding these ratings is crucial to ensure that the conductors used in an installation are properly sized for the expected load while minimizing the risk of overheating and potential hazards.

Table 310.16 specifically helps in determining the allowable ampacity of conductors installed in different conditions, ensuring compliance with safety standards and practical performance requirements. It is an essential reference point after the initial calculation of ampacity to confirm that the chosen conductor meets the necessary code requirements.