On Aug. 14, 2003, three transmission lines sagged into trees in quick succession, setting in motion cascading failures as protective relays opened on one power system after another. The result: the largest blackout in North American history. This incident resulted in a rewrite of the rules under which utility vegetation managers operate. While vigorous enforcement and compliance efforts on the part of vegetation managers have driven improvements in power system reliability and a ...
Website Registration Required to Access this Content
Only registered users have access to Silver content.
Registration on tdworld.com allows you exclusive access to high-value content such as Transmission & Distribution World supplements: Smart Grid, Renewables, Vegetation Management, Linemen, and Hurricane Sandy.