Anaru Williams, 15, had kicked the ball.
"I hit it and it fell down. It [the ball] hit it on the way up and it snapped in the middle. When it was hit it was like fireworks but when it hit the ground it stopped.
"It sounded like five-second fireworks. It dropped like straight away and I just watched it fall," Anaru said.
The teens had been playing kicks in the street regularly in the past few days and said the ball had hit the line before.
"We were kicking around yesterday and it hit it and nothing happened," Anaru said.
Police and a line technician arrived within minutes. "There were two police cars. They waited until the [maintenance] truck came and they just said to keep away from it," he said.
The Tenix line technician on the scene said it was incredibly fortunate no one had touched the felled power line.
"It was extremely dangerous. You should never touch it. This one here, they would have got a whack from it," he said. It was the first time he had been called to a job due to a ball having hit a line.
Raphael Hilbron, spokesman for Powerco, the energy provider in charge of the lines, said the occurrence was uncommon, and that it could have been fatal. "It was a low-voltage line. It was 400 volts. We consider that low voltage, but that is still enough to be lethal. It could definitely kill someone.
"We have always taken the view that you should always treat lines as live. Always assume it's live and dangerous. The best practice is to not touch it at all. You should contact the emergency services and the power company as soon as possible" he said.
"It's pretty rare. It's certainly new to me.We have the odd car that brings down a power line or a storm that brings a tree down on a line, but that's the first I've heard of that.
"It's an incredibly unusual and rare event."