Ground Potential Rise (GPR)

Ground Potential Rise (GPR) analysis is one of the most sought after services in the industry today. In order to protect personnel, equipment, and the valuable technology used today, GPR analysis is required by most electric utilities and Telco companies when operating in high-voltage environments. E&S Grounding Solutions offers two types of GPR services to meet your needs, the GPR Calculation and our premiere service, the GPR Study.

GPR Calculation’s provide all the data required for T-1 line applications including the total fault current, GPR voltage, X/R factor, and the 300-volt line. The E&S GPR Calculation Report includes on site soil resistivity test, printouts from the custom computer-modeled simulations along with photos of your site. All the information you’ll need to get your T-1 lines approved. Fast!

The premiere engineering service offered by E&S is the GPR Study. The GPR Study includes all the information in the standard GPR Calculation, including on site soil resistivity testing and a full analysis of the Step & Touch Voltages present at your site. The E&S GPR Study additionally provides all the structural design recommendations needed to eliminate any potential electrical hazards. Let E&S help you protect your personnel and equipment from the hazards of operating in high-voltage environments!

GROUND POTENTIAL RISE STUDY – GPR Study
For the protection of personnel and equipment in high-voltage areas. Includes Telco T-1requirements.

• Site Review of Ground System
• Soil Resistivity Test: Wenner 4-point
• Computer Modeled Ground System Design
• Safety Calculations & Recommendations
• GPR Calculation & Written Report

• Site Review of Ground System
• Soil Resistivity Test: Wenner 4-point
• GPR Calculation – Safety NOT included
• Written Report

Ground Resistance Design
Wenner 4-point Soil Resistivity Testing
Ground System Resistance Testing/Verification (3-point Fall-of-Potential)
Site Surveys/Audits
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