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IEEE Std 1100-1999
(Revision of IEEE Std 1100-1992)

IEEE Recommended Practice for Powering and Grounding Electronic Equipment

Sponsor

Power Systems Engineering Committee of the Industrial and Commercial Power Systems Department of the IEEE Industry Applications Society
Approved 22 March 1999

IEEE-SA Standards Board
Abstract: Recommended design, installation, and maintenancepractices for electrical power and grounding (including both power-related and signal-related noise control) of sensitive electronic processing equipment used in commercial and industrial applications are presented. The main objective is to provide a consensus of recommended practices in an area where conflicting information and confusion, stemming primarily from different viewpoints of the same problem,have dominated. Practices herein address electronic equipment performance issues while maintaining a safe installation. A brief description is given of the nature of power quality problems, possible solutions, and the resources available for assistance in dealing with problems. Fundamental concepts are reviewed. Instrumentation and procedures for conducting a survey of the power distributionsystem are described. Site surveys and site power analyses are considered. Case histories are given to illustrate typical problems. Keywords: commercial applications, electrical power, grounding, industrial applications, sensitive equipment

Grateful acknowledgment is made to the following for having granted permission to reprint illustrations in this document as listed below: Figures 2-1, 2-2,2-3, 2-4, 4-4, and 4-5 from The Dranetz Field Handbook for Power Quality Analysis, Dranetz Technologies, Inc., Edison, NJ, 1991. Figure 3-3 from Westinghouse Electrical Transmission and Distribution Reference, copyright 1964. Figure 3-4 from Global Atmospherics, Inc., copyright © 1999. Figure 4-6 from A. McEachern, Handbook of Power Signatures, Basic Measuring Instruments, Foster City, CA, 1988.Table 4-2 from ANSI C84.1-1995, American National Standard for Electric Power Systems and Equipment—Voltage Ratings (60 Hz), copyright 1989 by the American National Standards Institute. Figure 4-29 from R. H. Golde, ed., Lightning, Vol. 2, Lightning Protection, London: Academic Press, 1977, p. 802. Figure 4-32 from R. B. Standler, Protection of Electronic Circuits for Overvoltages, John Wiley & Sons,Inc., copyright © 1989. Figure 5-1 from Angus Electronics Co., Indianapolis, IN.

First Printing September 1999 SH94741

The Institute of Electrical and Electronics Engineers, Inc. 345 East 47th Street, New York, NY 10017-2394, USA Copyright © 1999 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 15 September 1999. Printed in the United States ofAmerica

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ISBN 0-7381-1660-2 ISBN 0-7381-1661-0

SH94741 SS94741

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