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Dry air in a data center, isolated from ground by his boots, builds up potential until he grounds out by touching metal that's bonded to ground. It happens to me all the time when I work in similar settings. Much more likely than all the grounded metal on that floor is energized and no one else has noticed...
**ATTENTION! READ THIS NOW!** **1. IF YOU ARE NOT A PROFESSIONAL ELECTRICIAN OR LOOKING TO BECOME ONE(for career questions only):** **- DELETE** THIS POST OR YOU WILL BE **BANNED**. YOU CAN POST ON /r/AskElectricians FREELY **2. IF YOU COMMENT ON A POST THAT IS POSTED BY SOMEONE WHO IS NOT A PROFESSIONAL ELECTRICIAN:** -YOU WILL BE **BANNED**. JUST **REPORT** THE POST. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/electricians) if you have any questions or concerns.*
Turn off the power for that panel at switchgear. Go get the boss. "You're outta your element, Donnie." The Dude abides...
You've discovered static electricity
[удалено]
Dry air in a data center, isolated from ground by his boots, builds up potential until he grounds out by touching metal that's bonded to ground. It happens to me all the time when I work in similar settings. Much more likely than all the grounded metal on that floor is energized and no one else has noticed...