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Recent content by rcoloradoemestica

  1. rcoloradoemestica

    Lightning arresters

    Please read electrical design lighting and static electricity protection Ricardo
  2. rcoloradoemestica

    Calculating Ground Potential Rise in an indoor 12.5kV substation

    go to http://www.usda.gov/rus/electric/bulletins.htm and download 1724E-300 on chapter XI it shows how to calculate the ground grid Ricardo

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