In pre-incident planning, which hazard is often visible in daylight but may be unseen at night when considering ladder placement?

• A. Overhead power lines
• B. Fire escapes
• C. Ladder rungs
• D. Ground obstacles

Answer: (A)

Overhead electrical lines. In daylight you can usually see lines running above streets, rooftops, and entrances, so you can plan ladder placement to stay clear. At night, lighting limitations, shadows, and tree branches can hide those lines, increasing the risk that a ladder comes into contact with them. That hidden risk makes overhead power lines the most important factor to account for in pre-incident planning when positioning ladders. In practice, mark line locations, keep a safe distance from any overhead conductors, and coordinate with utility crews to de-energize or reroute if needed; whenever possible, use non-conductive ladders and treat lines as energized until you’ve confirmed they aren’t.