Soil Resistivity Surveys

Accurate soil resistivity information and its interpretation is the basis of an effective earthing design. Our site teams understand this and apply their experience and training to obtain the most relevant data in the most cost effective manner using appropriate instrumentation and equipment. Site measurement data is interpreted using advanced analysis techniques and software to ensure that representative models are developed for design calculations.

We are one of the few companies to continually employ a geologist to help in this important area. Where we have been called in to audit third party designs that have failed, incorrect soil data has often been the 'Achilles heel' that caused the problem

Earth Impedance Measurements

Our clients benefit from our deep understanding of the available measurement instrumentation and techniques, developed over the last 15 years through R&D projects and vast experience gained not only on commercial projects, but also by supervising several PhD research investigations into this specialist area.

We offer a full range of services from routine maintenance testing to advanced AC earth impedance measurements using purpose-built equipment. Data collected from site is interpreted using the most appropriate method including detailed computer simulation. Our high quality service and proven track record mean that our measurement reports are accepted by electricity companies.

Earth Potential Surveys

Using advanced measurement equipment and techniques we can verify key safety related potentials by measurement. These include Touch and Step Potentials, Earth Surface Potentials (Hot Zones) and Transfer Potentials to adjacent earthing systems, pipelines or other metallic structures.