When completing repairs on a high voltage circuit where portable grounding straps were used for increased operator safety and confidence, what is the proper procedure for disconnecting these grounding straps?

Correct Answer: Option C — Disconnect the phase connections to common first, then disconnect the common connection to hull ground.

Disconnecting portable grounding straps requires removing phase connections before breaking the hull ground connection. This reverse sequence maintains continuous low-resistance personnel protection throughout the entire disconnection process, complying with IEEE 45 high-voltage safety practices.