Revisions to design standards gain approval

The project to revise Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems (IEEE P493) will update the equipment reliability data in the Gold Book using the Power Reliability Enhancement Program database for industrial and commercial power systems. The revision will reflect current practices for computer environments and such areas as voltage sag analysis based on equipment characteristics. This standard presents the fundamentals of reliability analysis used in planning, designing, and operating reliable industrial and commercial power systems.