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HVPS -Services - Earthing Installation

Earthing Installation

HVPS undertake the following earth testing whether part of planned maintenance or the commencement of projects.

Soil Resistivity Testing (Wenner Method)

Performed before design or when upgrading earth grids. Measures soil characteristics affecting:

  • Earth resistance
  • Grid sizing
  • Fault current dissipation

Fall-of-Potential Test (3-Point Test)

Most accurate method for substations and electrodes. Used for:

  • Substations
  • Transformers
  • New installations

Clamp-On Earth Resistance Test

The tester Injects signal through the clamp measuring loop resistance of parallel earth paths

Best for:

  • Multi-earthed systems
  • Live installations
  • Maintenance inspections