The reliable operation of electrical installations depends on properly designed and maintained grounding and lightning protection systems. Intertest performs specialized measurements and assessments that ensure personnel safety and equipment protection.

Impedance Measurements and Analysis

• Grounding system impedance – measurement of grounding electrodes in grounding installations
• Lightning protection system impedance – measurement of grounding electrodes in lightning protection systems
• Contact joint transition resistances – assessment of connections between grounding elements

These measurements provide information on the effectiveness of the grounding system and its ability to safely conduct fault or lightning currents into the ground.

Safety Assessment

• Step voltage
• Touch voltage

Assessment of step and touch voltages is crucial for preventing the risk of electric shock during fault conditions.

Corrosion Assessment

• Evaluation of the corrosion condition of grounding electrodes and grounding elements
• Recommendations for replacement or protection in cases of significant corrosion

Regular corrosion monitoring extends the service life of grounding systems and ensures their continued effectiveness.