The minimum approach distance for AMT-2 qualified employees against Transmission Wires for equipment operating in the vicinity of wires energized or de-energized and not grounded is?

• A. 8 ft.
• B. 3 ft.
• C. 6 inches.
• D. 15 ft.

Answer: (D)

The essential idea is the safe buffer you must maintain from energized or potentially energized conductors to prevent electric shock or arc flash. When AMT-2 qualified employees operate equipment near transmission wires that may be energized or de-energized and not grounded, the recognized safe distance is 15 feet. This larger clearance accounts for the higher voltage of transmission lines and the possibility of arcing through the air, which can occur even without direct contact. Not grounded wires mean a fault or incidental contact could energize paths to ground, increasing risk and necessitating a substantial margin. The smaller distances would not provide adequate protection for transmission-level hazards.