Residential NFPA® 70E System Ground Testing

We conduct ground testing using certified calibrated equipment.

Almost every home we test has an EGC Equipment Grounding Conductor, not complying with the NEC requirement to have the grounding electrode impedance ≤ 25 ohms. We were stunned when we discovered this.

Frequently, we encounter buildings showing ground loops, disconnected EGC electrodes, and impedances exceeding 1,000 ohms.

How well is your building grounded? Is there a potential for a shock or fire hazard? Do you have excessive line noise (dirty electricity) and intensified electric fields because of poor grounding? Applying a filter may be concealing a more systemic electrical issue. It would be best if you were sure.

***A Voting Professional Status Member of the National Fire Protection Association —-Certified in NFPA® 70E Grounding and Bonding***

Why do home inspectors and electricians not catch this grounding issue? Possibly because the testing tools are very expensive, and these persons don’t own them? Perhaps, the inspectors are assuming the electricians check for this? We don’t know.

We have yet to meet an electrician or home inspector with these essential tools.

Fortunately, at Elexana LLC, we have these important tools and can conduct certified NFPA 70E® grounding and bonding testing and recommend the appropriate grounding solutions for you.

We can also test your soil resistivity with our state-of-the-art Wenner System. Soil resistivity is the electrical resistance in your soil. If it’s high, one or two ground rods may not be enough. You may need more rods or a different grounding system altogether. We can determine using systems to determine how many ground rods you require.

Certified Advanced System Ground Inspections, above and beyond the common Home Inspection or Electrician Check. A poorly grounded building is a shock and fire hazard with possible dire long-term health consequences. Without this essential level of testing, an EMF inspection is incomplete.

We can provide a:

Three-Point Fall of Potential Ground Rod Testing.
Grounding Electrode Conductor Impedance and Current Measurements.
Overcurrent Lightning Protection Safety Check with Impedance and Current Measurements.
Wenner Soil Resistivity Testing.
Schlumberger Method Testing.
Utility Grounding and Bonding Testing.
Utility Stray Current, Voltage, and Frequency Testings.
Multiple Ground Rod-to-Soil Resistivity Impedance Calculations and Modeling.
Grounding Grid Impedance Testing.