Soil Resistivity and System Ground Testing

1. As a certified NFPA member, we can test if your electrical system is grounded and bonded. By conducting essential tests that electricians and inspectors, unfortunately, do not have the expensive tools and training to provide, we can help you know if your building is adequately connected to the earth ground.

2. Don’t assume that just because your building has ground rods installed, or has a grounding grid, that your building is properly grounded and safe.

3. A poorly grounded building produces EMI that hinders equipment function and elevates occupants’ epidermal voltage.

4. If your soil has poor conductivity or your system ground is looped, your entire building could be electrically floating.

5. An ungrounded building is a shock and fire hazard. This situation is more common than most realize.

6. A poorly grounded facility will also support high-frequency harmonics and voltage transients harmful to equipment and occupants.

We use NIST_traceable state-of-the-art equipment to test:

• Four-Electrode Wenner Method for Soil Resistivity Testing

• Stray Voltage and Current Testing

• Kelvin 3-Point Ground Grid and Rod Resistance IEEE 1.9.5

• EGC Equipment Ground Rod and Conductor Resistance IEEE 1.9.5

• Three-Point Fall of Potential Ground Rod Testing IEEE 81.

• Grounding Electrode Conductor Impedance and Current Measurements,

• Overcurrent Lightning Protection Safety Check with Impedance and Current Measurements

• Schlumberger Method Testing

• Point-to-Point Testing IEEE 1.9.5

• Bonding Strap Inspections

• Bonding Impedance and Current Measurements

• Utility Grounding and Bonding Testing

• Utility Stray Current, Voltage, and Frequency Testings

• Parallel Resonance Data Logging and Testing

• Multiple Ground Rod-to-Soil Resistivity Impedance Calculations and Modeling

• Grounding Grid Impedance Testing

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