What is a safety practice that should be observed when using a ladder near power lines?

Maintaining a safe distance from power lines is essential when using a ladder because electricity can jump or arc from power lines to conductive materials, including metal ladders. By ensuring that you keep a safe distance, you minimize the risk of electrical shock or accidents. This practice is crucial for protecting yourself when working in proximity to power lines, especially since most ladders are made of conductive materials.

While using insulated ladders is also a good practice, it does not negate the need for maintaining a safe distance, as there are limits to how much insulation can protect against high voltages. Taking a partner for assistance can enhance safety in terms of general support and communication but does not directly mitigate the risks associated with proximity to power lines. Additionally, while ladders with rubber feet can help improve stability and prevent slipping, they do not provide protection against the risk of electric shock from nearby power lines.