Mustang51 is correct. A model can take down a power line. i.e., short it out. So can a large bird or squirrel.

But only for six (6) seconds.

After the short and the stopping of power, the CB or ACB (air-circuit-breaker) tests (trys to supply power again) and unless the object is a steel chain, it gets blown clear of the line and current flows again. The breakers do this twice before completely shutting down the line.

That's why it is not a good idea to handle downed power lines, you never know if and when the breaker will test.