Powerlines
Everyone,
For reference;
The big fat ones that are nearest the ground are telephone/cable lines. Not to dangerous.
The skinny, ratty ones that are at the top of the pole are the "nasty" ones. Can be very dangerous to plane/radio equipment, fire hazard being the worst.
The ones on the BIG towers are transmition lines, and carry the biggest kick. These CAN, and, WILL kick your a**, destroy your radio and plane, and can jump an arc far enough that you would be suprised.
Also as an added incentive to stay away, YOU are liable to damage that you cause with your plane, not cheap.
Jetts