bushing

Inspectors said the likely cause was moisture getting into the high-voltage "bushing" – insulation around the connections.

Ukrainian power authorities have said the equipment they urgently need includes circuit breakers, bushings and transformer oil, along with the “high-tech and high-cost” autotransformers, which can weigh more than 500 pounds.

A list of “urgent needs” from DTEK, the country’s largest private energy company, circulating in Washington lists dozens of transformers along with circuit breakers, bushings and transformer oil.

In that case, a safety recall report said “heat and humidity have the potential to contribute to the hydrological breakdown of the bushing material.”

The National Highway Traffic Safety Administration says in documents posted on its website Wednesday that a bushing that attaches the shifter cable to the transmission can degrade or detach.