Crazy Electrical Find 😳⚡️

This was a scary electrical find. I’m just glad I caught it and didn’t get hit by 277v.

Additional context: Normal circuit was completely off (locked out and tagged out at the breaker). The whip shown in the video had already been disconnected from the normal J-box and was connected to the light. To prevent shutting off all of the lights in nearby occupied hospital corridors, I had planned to de-term normal power first and then disconnect the life safety power. Yes, this takes a little more time but it’s much less impactful for the hospital. After recording this video and completely demoing out the light, I confirmed that whoever made up the light had accidentally crossed the neutrals in the light. This essentially caused life safety to go in through the life safety hot and out through the normal neutral and (vice versa). I misspoke in the video and said that  the life safety circuit was being back fed through the neutral when I meant to say that the life safety circuit was completing its path back home through the normal neutral.
Voltage was checked from neutral to ground.

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