When working near exposed, energized electrical conductors, which ladder materials are suitable? I fiberglass II wooden III metal.

When working near exposed, energized electrical conductors, which ladder materials are suitable? I fiberglass II wooden III metal.

• A. I only
• B. I or III only
• C. I or II only
• D. II only

Answer: (C)

When working near exposed, energized conductors you want a ladder that won’t conduct electricity, so you don’t create a path for current to reach you. Fiberglass ladders are nonconductive and provide solid insulation, making them a safe choice around live electrical parts. Wooden ladders are also insulating when dry, and if the ladder is in good condition and kept dry, they can be used near energized conductors. Metal ladders, however, are conductive and can carry current if they contact live parts or become energized, creating a shock risk. So, suitable options are fiberglass or dry wooden ladders, while metal ladders should be avoided.

When working near exposed, energized conductors you want a ladder that won’t conduct electricity, so you don’t create a path for current to reach you. Fiberglass ladders are nonconductive and provide solid insulation, making them a safe choice around live electrical parts. Wooden ladders are also insulating when dry, and if the ladder is in good condition and kept dry, they can be used near energized conductors. Metal ladders, however, are conductive and can carry current if they contact live parts or become energized, creating a shock risk. So, suitable options are fiberglass or dry wooden ladders, while metal ladders should be avoided.