120Kv lines feeding all of downtown Montreal. My bench table steel outer frame was 32 feet long metal L beams welded together into a 2 rectangles, supporting 2 wooden table top (8x16feet), perpendicular to the power line, with 8 vertical spiked legs, no connections to anything other than that the entire outer L-beam structure was all welded into 1 huge solid piece. Note that the height of the table-top's steel frame was approximately ground level. My basement didn't go too deep underground.
During the muggy hot days and freezing cold mornings, you could hear a hum coming from the frame beams as the city drew much more AC power, as is the case for many houses metal ducting along the blocks of the power lines. Now that I moved out, the city residents are petitioning to force the power company to bury and insulate the power lines as they effect all the houses in the area. Even when there was a total blackout in my city of Dollard, there was still the hum on the table if the City of Montreal was still getting power.
Note that if I look out at the window in my basement from the height at the top of my table, the power lines are high enough that they would be in direct line of sight, (no power going through concrete or earth) except for the trees and my neighbours house which are in the way in my backyard.
I attached the location of my old house. I cant seem to find a photo of my workbench.