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                                                                             I'll call back later http://xnxxhindi.site/sitemaps/1.html lexington steele iafd  Operators must assess the worst case scenario, usually theloss of the largest generator or transmission line on thesystem, and plan how to meet it (the "N-1 criterion"). If ithappens, they must be able to bring the system back into a safeoperating condition within no more than 30 minutes, and startplanning to meet the next worst-case scenario.
  
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