Conductor Sag Demonstration - DOE Smart Grid Workforce Training Video

BPA partnered with Washington State University and the Northwest Workforce Training Center for Electric Power Engineering to develop these four videos that look at three common high-voltage transmission phenomena: corona, electrostatic induction and conductor or power line sag. The training videos are featured in new curriculum for power engineers that's part of a nationwide smart grid workforce training project sponsored by the Department of Energy. The tests were conducted at BPA's High Voltage Lab in Vancouver, Wash.

[@mr.winterspirit3858]

that was a useful video . thnxs

[@Permaglo]

If I read the meters on the high current supply correctly there was 100 amps at 5.5 volts on the conductor. Is that correct? Because that doesn't seem like much of a load.

[@kanmaneedechsri8845]

Can you give me the summary of this video ?

[@RedTopProductions]

Hot temps and heavy loads cause the metal power lines to heat up and thermally expand, making the cables effectively longer and sag more, which can be dangerous if allowed to get too hot and/or too saggy

[@Luzt.]

What this technically a "wire"? Conductor or cable seems more appropriate. I'm not a native speaker thou, so what can I know ...

[@flaplaya]

"Stretch". The conductors heat and then expectedly expand, not stretch (Coefficient of expansion). Wish these multi billion dollar numb nutted golfballs would treat us *Common people to a bit of reality... Probably spent like $50K on the absolute idiot who made this video and here I am with almost nothing in my pocket while possessing multiple degrees in Electrical.

[@PacoOtis]

Horrible, horrible absolutely awful music to make this view not viewable. All the money and time spent on this video and having one this terrible! Uhmm?

[@SinistaProductions]

Joseph Stokes get a grip

[@johnwagner5218]

Yeah get a grip