Mostly aluminum because they are ran in free air and that changes their ampacity rating enough for aluminum to be more economical than copper. Gold has a higher ampacity rating than either al. or copper but it is to valuable to leave hanging in the air.
Power lines are made of aluminum, because they are exceptional conductors of both heat and electricity.
Electrical transmission towers are what holds power lines up. These towers are made of steel and have an openwork lattice design.
Much higher.
there are no power lines in heaven
123321
at the end of power lines 1 you get a code to enter power lines 2 the code is 321123
The insulators on power lines are usually porcelain.
there legs are insulators so they can stand on power lines
China is, or used to be (the current material may be some made made material) china on power lines. The separators were made of china to insulate them.
Power lines sag mostly in the summer depending on where you live. The warm weather causes the power lines to expand ( so the particles expand) and sag. If you live in a Northern Country where it is cold in the winter, the power lines will do the opposite because the cold weather causes the power lines to contract.So basically power lines sag in the summer and "de-sag'in the winter.
No
the power steering is leaking were the lines run inside the boot on the driver side