"I didn't even get a chance to turn the car off," she said, before she heard the loud crash.
"Squealing and then impact.
"As soon as it happened I jumped out of the car and ran straight to them."
The boys got themselves out and the passenger was trying to turn off the car when she encouraged them to get away from it, she said.
"Almost instantly the flames came. I'm not sure if it was from the car or the transformer ... I just got them away because I was scared it was going to blow up."
The driver's face was badly injured but she believed the boys' injuries could have been a lot worse if they had not been wearing seatbelts. She contacted the boys' parents and met the driver's mother when she arrived at the scene, who could not comment as she left quickly to see her son in hospital.
A resident on Windsor Rd, around the corner from Princess Rd, said she did not see the accident. "Heard it though, sounded like gunshots. Then the sirens started."
Constable Ian Sadler said most of the power box was alight and both the power box and car burnt through while fire fighters waited for power authorities to turn up.
Mr Sadler said power authorities needed to turn off the power and make sure the box was safe before firefighters were able to use water on the flames.