Revision Standard - Superseded.The present state of the technique of measuring ground resistance and impedance, earth resistivity, and potential gradients from currents in the earth, and the prediction of the magnitude of ground resistance and potential gradients from scale-model tests are described and discussed. Factors influencing the choice of instruments and the techniques for various types of measurements are covered. These include the purpose of the measurement, the accuracy required, the type of instruments available, possible sources of error, and the nature of the ground or grounding system under test. The intent is to assist the engineer or technician in obtaining and interpreting accurate, reliable data. The test procedures described promote the safety of personnel and property and prevent interference with the operation of neighboring facilities.
PDF
All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.
Multi-User Access
After purchasing, you have the ability to assign each license to a specific user.
Printable
At any time, you are permitted to make printed copies for your and your members' reference use.