TRI is the most experienced ELL Contractor in Africa
It is essential to understand how site conditions affect the results of ELL testing in order for effective testing to be achieved. This requires extensive experience. TRI's experience in Africa is unrivaled. TRI's ELL technical staff includes over 15 years, over 170 million square feet, and several hundred ELL projects. The rigorous internal training program conducted by TRI for all ELL operators ensures that this expertise is brought to every project.
TRI is Independent and Standards-Compliant
TRI technical staff lead the ASTM International Task Groups developing ELL specific standards. TRI leads the industry for improving existing standards and creating new and improved standard guides and practices. With intimate knowledge of every standard that covers ELL methods, TRI ensures that the standards are applied to be maximally effective. TRI Africa is currently the only company in Africa that fully complies to the new ASTM method for Electrical Leak Location Surveys namely ASTM D8265: Electrical Methods for Mapping Leaks in Installed Geomembranes.
TRI's ELL Equipment and Methodology is Superior in DataQuality, Data Documentation and Survey Speed
TRI uses the most advanced Electrical Leak Location system in the world. Using the GPS-based double dipole system, precise electrical mapping is performed in a way that is not possible with the typical string-line measurement grid used by others. Voltage mapping can reveal the smallest of leaks that otherwise would remain undetected using other methods of analysis. In addition, the double dipole acquires data sets in two directions at once; one parallel to the direction of travel and one perpendicular to the direction of travel. This allows for weeding out false positive signals and also revealing leak signatures that are not visible in every angle of traverse.
Voltage maps are provided to clients as part of ELL reporting. From the voltage maps, clients can verify that the methods were applied properly and that the survey area was thoroughly covered.
The three meter-wide dipoles provide a more sensitive survey, since a wider dipole crosses more voltage contours than the typical one meter dipole spacing due to the increased distance between measurement points.
TRI is Efficient and Faster
The three meter-wide double dipole can cover a survey area nine times more quickly than a single one meter wide dipole. Additionally, the GPS-guided measurement grid removes the requirement to install string lines throughout the survey area saving time and money. Especially for large projects with tight schedules, the rapid surveys make it easy to accommodate in the construction schedule.