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- How does one choose the lightning protection class for risk assessment calculation, and how do you calculate radius of striking sphere & lightining current?
- What is omni potential grounding?
- How can you calculate the resistance-to-ground for a ground ring with rods attached?
- Can you explain the 1/20 probe depth rule when conducting a Wenner 4-pin Soil Resistivity Test?
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Category Archives: News
Ontario Storm: Lightning Vs. The CN Tower (VIDEO)
Lightning vs. CN Tower If you were hiding under your sheets or taking cover in your basement you might’ve missed the show above the skies of the Greater Toronto Area. A massive storm brought plenty of rain and lightning.
Posted in Lightning & Thunder Storms, News
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Alice Svensson, Swedish Girl, Struck By Lightning Twice In Shower
They say lightning doesn’t strike the same place twice, but Alice Svensson might beg to differ. Svensson, 12, was struck by lightning twice while taking a shower in her home in Gothenburg, Sweden, The Local reports.
Posted in Lightning & Thunder Storms, News
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OSHA Issues $121,100.00 in Fines for Grounding Violations
OSHA Finally Starts Fining Companies for Endangering the Lives of Workers St. Louis, MO – Who’s going to catch us? The mattress-tag police? Unfortunately, this is the attitude many an electrical engineer faces when discussing electrical grounding problems with upper … Continue reading
Posted in Electrical Grounding, Electrical Standards, News
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