
Tony Ging, THOR PoletestTM Engineering Manager and Ian Flatley, Managing Director, Products have challenged the traditional methodologies used to assess the condition of timber poles across utility networks.
They claim estimating a Residual Strength Valve (RSV) is an antiquated methodology and no longer fit for purpose.
RSV relies on subjective decision-making, questionable practices, is costly for utilities and ultimately provides inaccurate results which can compromise safety and add costs unnecessarily.
Technologies have advanced and there are now better options in place which give more robust results. An acceleration of climate extremes adds urgency to utilities to update their practises.
This has implications for those responsible for managing the networks’ assets, health and safety and overall budget management, as well as for the field-testers themselves.
This paper highlights the issues and limitations of current methodologies and shows how new technologies, such as the THOR PoletestTM can help utility companies save money, manage risk and increase the resilience of their service.
Read the full whitepaper here
We’re proud to share that Groundline has achieved Cyber Essentials certification, a globally recognized cybersecurity standard. This certification demonstrates that we have the essential controls in place to defend against cyber threats.

For over a decade Thor Poletest™ has provided networks with PHI™ (Pole Health Index™) - the gold standard in objective and accurate pole condition data and made possible by a simple 60-second non-destructive hammer test at the base of the pole.

The SZ Route is a 93 span 132kV Overhead Line made of PL16 Type Towers. It was due for reconductoring and modernisation in 2021. The route was made up of 132kV Lynx Phase and Earthwire and there was a desire to restring this line with Single Upas and 96 Fibre OPGW.

