11.   Six day trippers escaped unhurt when their hot air balloon hit power lines.

12.   Special noise absorption materials are even mixed with road asphalt and coat electric power lines here.

13.   The helicopter burst into flames after hitting a power line.

14.   The wind snapped branches and power lines.

15.   There was concern that overhead power lines could cause a health hazard.

16.   They look like jittery, hysterical little birds crowded together on a power line.

17.   Some people are worried that electromagnetic fields from electric power lines could increase the risk of cancer.

18.   The winds downed power lines.

19.   ...high-voltage power lines.