Ieee Guide For Measuring Earth Resistivity, Ground Impedance, And Earth Surface Potentials Of A Ground System

ANSI/IEEE Std 81-1983
(Revision of IEEE Std 81-1962)

An American National Standard

IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System

Sponsor

Power System Instrumentation and Measurements Committee of the IEEE Power Engineering Society
Approved September17, 1981

IEEE Standards Board
Approved September 4, 1984

AmericanNational Standards Institute

© Copyright 1983 by The Institute of Electrical and Electronics Engineers, Inc 345 East 47th Street, New York, NY 10017, USA No part of this publication may be reproduced in any form, in an electronic retrival system or otherwise, without the prior written permission of the publisher.

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Foreword
(This Foreword is not a part of IEEE Std 81-1983, IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System.)

In order to increase its practical usefulness, this guide has been divided into two parts. Part I, Normal Measurements, covers the majority of field measurements which do not require specialhigh-precision equipment and measuring techniques, and which do not encounter unusual difficulties such as may be found with extensive grounding systems, abnormally high stray ac or de currents, etc. Part I has been extensively revised and updated. Part II, Special Measurements, is to be completed in the future. This part is intended to describe the methods of measurements applicable when unusual...