Testing of Grounding Systems: The Revision of the IEEE Std81

Over the Years Grounding Design Procedures Have Been Developed as Well as Appropriate Standards, Most Notable:

•ANSI/IEEE Std 80-2000, IEEE Guide for Safety in AC Substation Grounding.

•IEEE Std 487-2007, Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations.

•IEEE Std 998-1996, IEEE Guide for Direct Lightning Stroke Shielding of Substations.

•IEEE Std 1410-2004, IEEE Guide for Improving the Lightning Performance of Electric Power Overhead Distribution Lines.

•IEEE Std 1243-1997, IEEE Guide for Improving the Lightning Performance of Transmission Lines.

•National Electrical Code.

•National Electrical Safety Code.

•FIPS 94 and Derivatives.

For the Purpose of Verifying Designs, Testing Procedures have Been also Developed. Most Notable:

•ANSI/IEEE Std 81-1983, IEEE Guide for Measuring Earth Resistivity, Ground Impedance and Earth Surface Potentials of a Ground System.

•ANSI/IEEE Std 81.2-1991, IEEE Guide for Measurement of Impedance and Safety Characteristics of Large, Extended or Interconnected Grounding Systems.

Grounding System Measurements