What safety precaution should you take when handling lines during maintenance?

• A. Treat all lines as potentially energized and avoid shorting conductors; use proper tools.
• B. Always unplug all lines before maintenance.
• C. Wear insulated gloves only when lines are wet.
• D. Operate at reduced voltage whenever possible.

Answer: (A)

Treat every line as potentially energized and avoid shorting conductors by using proper tools. In shipboard systems, wires and circuits can carry voltage even when they appear isolated, and a momentary contact or a tool bridge between conductors can cause a dangerous shock or an arc. By assuming energization and working with insulated tools designed for the task, you limit the risk of electric shock and equipment damage and prevent accidental cross-connections. Unplugging lines isn’t a foolproof safety blanket in all maintenance scenarios, gloves should be worn whenever handling lines (not only when wet), and you can’t rely on reduced voltage as a safety measure—proper insulation and careful handling are the protections you rely on.