Which aspect is NOT covered by B31.3 Power Piping?

The correct response highlights that B31.3 Power Piping specifically addresses various critical components involved in the handling and management of piping systems related to power generation. This includes aspects such as fabrication, which focuses on how the piping components are manufactured and assembled; testing, which outlines the necessary procedures to ensure the integrity and safety of the piping systems; and design, which involves the engineering principles and guidelines for constructing these systems to perform effectively under specified conditions.

Electric loading, however, is not a topic covered by the B31.3 code. This code is primarily concerned with the mechanical stresses and parameters relating to the fluid handling within the piping systems rather than electrical aspects, which pertain to electrical systems or equipment. Therefore, understanding that the B31.3 code does not encompass the factors involved in electric loading is key to recognizing the correct answer.