What is a significant hazard during storm work involving transformers?

In storm work involving transformers, a significant hazard is often the potential for equipment to be backed up from generators. During storms, power outages frequently occur, prompting the use of generators to restore electricity temporarily. If transformers are connected to these generators, there is a risk of back feed, which occurs when energy travels in the opposite direction into the power grid. This can create extremely dangerous situations for tree trimmers and other personnel who may be working near or around the transformer, as they may assume the circuit is de-energized when it is, in fact, live.

Understanding how generators can impact the power distribution system is essential for safety during storm response activities. Proper protocols must always be followed to ensure that any equipment being worked on is clearly marked and de-energized to prevent injuries or fatalities.