I design and help maintain power lines AMA!
My shot bio: I work day to day designing, project managing power lines both overhead and underground, high and low voltage.
I am also a qualified high voltage operator and help manage the network like responding to quality of supply issues, faults that happen on our network and any other issues that needs attention.
Figured some people would be interested to learn about a job that doesn't get much attention, even when there are power lines everywhere!
My Proof: Sent to mods as to stay anonymous.
EDIT: Heading to bed will check back in the morning!
EDIT: Ok i'm up and at it now, will answer more questions shortly!