IEEE 81-2012
Withdrawn
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IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System
30-03-2023
English
28-12-2012
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1. Overview
2. Normative references
3. Definitions
4. Test objectives
5. Safety precautions while making ground tests
6. General considerations on the problems related to
measurement
7. Earth resistivity
8. Ground impedance
9. Testing earth potentials and step and touch voltages
10. Integrity of grounding systems
11. Current splits
12. Transient impedance of grounding system
Annex A (informative) - Nonuniform soils
Annex B (informative) - Determination of an earth model
Annex C (informative) - Theory of the fall-of-potential
method
Annex D (informative) - Surface material resistivity
Annex E (informative) - Instrumentation
Annex F (informative) - Bibliography
The test methods and techniques used to measure the electrical characteristics of the grounding system include the following topics: a) Establishing safe testing conditions b) Measuring earth resistivity c) Measuring the power system frequency resistance or impedance of the ground system to remote earth d) Measuring the transient (surge) impedance of the ground system to remote earth e) Measuring step and touch voltages f) Verifying the integrity of the grounding system g) Reviewing common methods and procedures for performing ground testing h) Reviewing instrumentation characteristics and limitations i) Reviewing various factors that can distort test measur.
| Committee |
Substations
|
| DocumentType |
Standard
|
| ISBN |
978-0-7381-8028-1
|
| Pages |
86
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Withdrawn
|
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| IEEE 142 : 2007 | GROUNDING OF INDUSTRIAL AND COMMERCIAL POWER SYSTEMS |
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| IEEE 367-2012 | IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault |
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