When a series-rated combination is selected under engineering supervision in existing installations, who is responsible for the selection?

When a series-rated combination is selected under engineering supervision in existing installations, who is responsible for the selection?

• A. Licensed professional engineer
• B. Electrical contractor
• C. Project manager
• D. Technician

Answer: (A)

Selecting a series-rated combination is a design decision that directly affects safety and coordination of the electrical system, and when work is under engineering supervision, that decision rests with the licensed professional engineer. The engineer has the authority and accountability to evaluate protective-device configurations, verify code compliance, and document and seal the design. The electrical contractor implements the engineer’s design, the project manager handles schedule and scope, and a technician performs hands-on tasks under supervision. So the licensed professional engineer is responsible for the selection.

Selecting a series-rated combination is a design decision that directly affects safety and coordination of the electrical system, and when work is under engineering supervision, that decision rests with the licensed professional engineer. The engineer has the authority and accountability to evaluate protective-device configurations, verify code compliance, and document and seal the design. The electrical contractor implements the engineer’s design, the project manager handles schedule and scope, and a technician performs hands-on tasks under supervision. So the licensed professional engineer is responsible for the selection.