When comparing conductors of the same AWG size and THW insulation made from different materials, what would be the identified ampacity using Table 310.16?

When using Table 310.16, the ampacity of conductors depends on several factors, including conductor size, insulation type, and material. In this case, we are considering conductors of the same American Wire Gauge (AWG) size, with THW insulation, made from different materials such as copper and aluminum.

For conductors of the same size and insulation type, the ampacity values listed in Table 310.16 are based on the conductivity and thermal characteristics of the materials. Copper typically has a higher ampacity than aluminum due to its superior conductivity properties. However, when determining the ampacity for conductors with THW insulation, the specified ampacity for conductors of a given size remains generally the same across materials when referencing the table.

Consulting Table 310.16, one would find that for a conductor size such as 10 AWG with THW insulation, the ampacity is commonly listed around 30A for copper but may vary for aluminum. Understanding this concept ensures that the ampacity values remain consistent between different material types under the same conditions, bearing in mind that adjustments may need to be made based on installation conditions such as ambient temperature or bundling.

The selection of 35A reflects a situation where specific