Which statement about who completes the selection of overcurrent protective devices for selective coordination is incorrect?

Which statement about who completes the selection of overcurrent protective devices for selective coordination is incorrect?

• A. It must be completed by an Electrical Worker
• B. It must be completed by an Electrical Engineer
• C. It can be performed by any qualified person
• D. It must be reviewed by the Authority Having Jurisdiction

Answer: (A)

Understanding who can perform the selection of overcurrent protective devices for selective coordination centers on qualification and capability, not just a specific job title. The task requires someone who is knowledgeable about protection coordination, time-current characteristics, and device settings, and who can apply those concepts to ensure selective tripping. It isn’t limited to a particular role like an Electrical Worker; a range of qualified individuals—such as Electrical Engineers or other professionals with the necessary training—can perform it, as long as they are deemed qualified for the work. The important part is that the person is competent to execute the coordination study and set the devices correctly. The statement that it must be completed by an Electrical Worker is too narrow, which is why it’s the incorrect choice. In practice, many jurisdictions and organizations allow any qualified person to carry out the selection, provided they have the needed expertise. It’s also essential that the Authority Having Jurisdiction reviews the work to confirm it meets code requirements, which aligns with the other correct statements.

Understanding who can perform the selection of overcurrent protective devices for selective coordination centers on qualification and capability, not just a specific job title. The task requires someone who is knowledgeable about protection coordination, time-current characteristics, and device settings, and who can apply those concepts to ensure selective tripping. It isn’t limited to a particular role like an Electrical Worker; a range of qualified individuals—such as Electrical Engineers or other professionals with the necessary training—can perform it, as long as they are deemed qualified for the work. The important part is that the person is competent to execute the coordination study and set the devices correctly.

The statement that it must be completed by an Electrical Worker is too narrow, which is why it’s the incorrect choice. In practice, many jurisdictions and organizations allow any qualified person to carry out the selection, provided they have the needed expertise. It’s also essential that the Authority Having Jurisdiction reviews the work to confirm it meets code requirements, which aligns with the other correct statements.