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  1. Ballgame

    Maximum Switching Surge Factor Calculation

    Section 232D3a (In the 2011 edition of NESC it is on page 93 about 2/3 of the way down the page.)
  2. Ballgame

    Maximum Switching Surge Factor Calculation

    I'm trying to find the calculation for determining the Maximum Switching Surge Factor for a 230kV Transmission Line. This term is defined in the National Electric Safety Code as a switching-surge level for circuit breakers corresponding to 98% probability that the maximum switching surge...

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