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    Section 502.3 - Interconnected Electric System Protection Requirements

    Document history

    • Future Sep. 1, 2018

      Effective September 1, 2018

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    • Current Aug. 30, 2016

      This is the current effective document for section 502.3 of the ISO rules.

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    • Archive Mar. 27, 2015

      Previous effective document March 27, 2015 - August 29, 2016

      Download (279 KB)
    • Archive Dec. 31, 2012

      Previous effective document December 31, 2012 - March 26, 2015.

      Download (343 KB)
    • Archive Dec. 1, 2004

      Protection Standard

      Download (570 KB)