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Politics : Idea Of The Day

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To: IQBAL LATIF who wrote (44368)	8/15/2003 5:56:29 PM
From: IQBAL LATIF	Read Replies (1) of 50167

Paul Philp has the best conceptual analysis of the blackout that I've seen. We're hostages or networked technology, so we'd better learn to deal with it. "In less then a week all aspects of modern life would be gone. Modern civilization has a single week in the bank." Large-scale electricity systems are brittle. The whole system, grid, power generators, has at all times to be synchronous (frequency and phase). Pull down one part and it may pull down the rest. In the States brownouts and blackouts are common. In the UK these are on the increase due to the lack of maintenance. In the States power lines cut out when overloaded. This in turn caused power stations to cut out as they had no load. More lines cut out. Eventually the whole system collapsed. It took days to restore. Why? Any one part assumed the rest of the system was functional to kick start. Power stations drew from the grid to power pumps and other essential equipment. Cables drew power to circulate coolant. As the system slowly dragged itself up, it cut out again as parts became unbalanced and overloaded. longharvest.com

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