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June 07, 2023
Home » PJM, Pepco Investigating Cause of DC-Area Outage
By Suzanne Herel PJM and utility officials said yesterday they are still investigating what caused the failure of a 230-kV transmission line that briefly cut power to the White House and much of the D.C. area Tuesday afternoon. The incident caused a drop in voltage that led the Calvert Cliffs...
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