- Home
- Companies
- ELD Environmental Leak Detection GmbH
- Services
- Mobile Geomembrane Leak Detection
Mobile Geomembrane Leak Detection
Mobile leakage detection is also an electrical method that utilizes the electrically insulating properties of the plastic sealing membrane. During the measurement, the electrical contact formed as a result of damage to the underside of the plastic sealing membrane is detected. These methods do not require pre-installed cables and can therefore be used with existing seals.
Types of methods
In general, methods are distinguished for open and already covered plastic sealing membranes. However, it should be noted that many damages occur only when the plastic sealing membranes are covered with drainage and protective layers, and are rarely attributable to faulty installation of the membranes. For this reason, it is hardly sensible to test open plastic seals that are yet to be covered.
ELD is happy to advise you on the selection of the appropriate measurement method.
Measurement on exposed plastic sealing membranes
The measurement is performed using a high-voltage broom. When the broom comes into contact with a leakage, a current flows that is detected by the measuring device. An alarm signal sounds, and the measurement technician marks the leakage.
Helpful for this measurement are plastic sealing membranes with an electrically conductive underside, as unloaded membranes typically do not fully contact the substrate, potentially resulting in insufficient electrical contact between the leakage and the ground.
Typical applications include open basins that are not covered.
The measurement is conducted on the top side of the cover. The method is internationally known as Di-Pole measurement and has an ASTM standard. The reliability of the measurement depends not only on the technician`s experience but also on details such as the height of the cover, the layering structure, and other factors that influence the quality of the result.
ELD supports in the planning phase, allowing for the early integration of a monitoring system into the construction of the sealing system. Contact us to speak about the options for electric leak detection in your project.
The implementation of a construction project or service is carried out in close coordination with our client and the construction company. For permanently installed systems, we deliver the prefabricated measuring cables to the construction site. The prefabrication allows for the installation of the cables to be mostly carried out by the installer of the plastic sealing geomembrane.
- Measurement on exposed geomembranes
- Measurement on covered geomembranes
- Measurement on filled ponds
- Maintenance of automatic measuring systems