SDG&E's power shut-down plan
Last updated 10/23/2008 at Noon
On October 3, Sempra Energy introduced a number of steps to reduce the potential for fires during our high risk season. Most controversial among the measures to be taken is the proactive shutting off of power under certain extreme weather conditions.
Identified as one of five triggering conditions is a localized sustained wind speed greater than 35mph or gusts greater than 55 mph, both common occurrences during Santa Ana season. Of particular concern to Sempra is a condition called “galloping,” a wind-generated, mechanical vibration or whipping of the power lines, which can result in p...