History: Below is a listing of the Revisions and Changes made to this UFGS.

KEYPREPARING ACTIVITY (PA)A ArmyN NavyF Air ForceS NASA [ARCHIVED]
ACTIONN NewR RevisionC ChangeD Deletion
Release PA Action Change # Nature of Change or Revision
May-2021 N C 1 In response to the following: CCR 937, IEC 60687 has been removed from the Reference Article and the section text; CCR 4620, the accuracy class in potential and current transformers was changed to "0.15" in paragraphs Potential Transformer Requirements (2.1.2) item f. and Current Transformer Requirements (2.1.3) item b.; and CCR 5117, reference to a 'Voltage Requirements' paragraph was removed from paragraph (2.1.5) Disconnect Method, item c.
Feb-2021 N R Complete review and update.
Feb-2011 N N New section