Extension Ladder -

: The safest choice for electrical work. Fiberglass is non-conductive and highly durable, though it is heavier than aluminum.

Stability starts at the base. To ensure your ladder is at the safest angle, follow the : for every 4 feet of height to where the ladder touches the wall, the base should be 1 foot away from that wall. extension ladder

Extension Ladder Safety: A Guide to Preventing Injuries on the Job : The safest choice for electrical work