An instrument used to determine the maximum allowable quantity of conductors within a specific size of electrical tubing, considering conductor and tubing dimensions according to applicable codes and standards. For instance, a calculator of this type might assist in determining how many 12 AWG conductors can safely and legally be installed in a 3/4 inch electrical conduit.
Accurate calculation prevents overheating, facilitates easier wire pulling, and ensures compliance with electrical regulations. Historically, such calculations were performed manually using complex formulas and tables, often leading to errors. Modern tools automate this process, enhancing safety and efficiency.
