Question

Not greater than its ______, the ampacity of a wire is the current a wire can constantly carry with the conditions of use.

1. Temperature rating
2. Nominal voltage drop limits
3. Melting point
4. Rated voltage

Answer 1

The ampacity of a wire is determined by its temperature rating, not by its rated voltage or melting point.

Step-by-step explanation:

The ampacity of a wire is the maximum current it can carry continuously under the given conditions of use. It is not determined by the rated voltage or the melting point of the wire, but rather by its temperature rating. The temperature rating represents the maximum temperature that a wire can withstand without its insulation degrading.

For example, an electrical wire may have a temperature rating of 90 degrees Celsius. This means that the wire can continuously carry a specific current without overheating as long as the temperature does not exceed 90 degrees Celsius.