|Client||EHV OHL Operator|
|Project||EHV OHL Tower Route Modification|
A new overhead line (OHL) was being built between two EHV substations. The new planned route was in a potentially problematic proximity to the existing route with Earth Potential Rise (EPR) impacts being likely along the strings. As there is potential for significant impacts ERM were brought in to examine the impact of EPR on towers along the routes.
ERM’s experience and information gathering expertise allowed for the identification of Often Frequented Towers (OFT’s) as points of interest along a significant number of tower spans. This prioritisation allowed for the planning of Soil Resistivity test routes in proximity to these points of interest only and therefore reduce the number of tests that had to be carried out.
This allowed for savings on project costs and time taken to produce results.
The project was delivered to the customer outlining the findings of the study in a timely manner. The report made recommendations to the customer for not only the results but for the possible improvement of this, and any subsequent, studies with regards to the information used and alternative approaches to the study.
Important standards applied in the production of the report: