Electrical Resistivity Test (ERT)
Soil resistivity for earthing & solar projects
Investigation Mandate
To measure soil electrical resistivity for designing earthing/grounding systems, solar PV plants, transmission line tower foundations and corrosion assessment of buried infrastructure.
What We Deliver On Site
Field & Laboratory Methodology
Site grid planning → 4-pin Wenner array setup with adjustable electrode spacing (1m, 2m, 4m, 8m, 16m, 32m) → IEEE 81-2012 measurement → multi-layer soil modelling (CDEGS/ETAP) → earthing rod recommendation & resistance prediction.
Certified Outputs & Deliverables
Other Survey & Geotechnical Capabilities
Topographic Survey
Total station, DGPS, drone & contour mapping
Traffic Survey
Volume count, classification, O-D, speed studies
Pavement Condition Survey
PCI, roughness, deflection & distress mapping
Environmental Monitoring
Air, water, soil & noise quality surveys
HAVE AN ENGINEERING CHALLENGE?
Tell us about your project, site condition, testing requirement or engineering challenge. Our team can help identify the appropriate investigation, testing or engineering approach.