What is the minimum calculated height for a specified pull box?

The minimum calculated height for a pull box is specified to be 44 inches to ensure accessibility and compliance with various electrical codes and safety standards. This height is established to facilitate easy access for maintenance and operation by electricians, ensuring they can work safely without straining or bending excessively. Moreover, having the pull box at this height helps to adhere to regulations regarding accessibility for people of different heights and abilities.

In practice, positioning the pull box at 44 inches also enables easier connections and reconfigurations of wiring within the box, reducing the chances of errors during electrical installations or repairs. This height is aligned with industry best practices, which recommend placing devices and access points within reach, yet high enough to reduce the likelihood of tampering or accidental interference by unauthorized personnel.

Other specified heights, such as 40, 42, or 46 inches, do not meet the established criteria as effectively as 44 inches does, hence why they are not the correct answer.