Testing Through Overburden

Low Voltage / Wet ELD Testing

Electronic Leak Detection through  ‘Overburden’ adds additional complexities that can impact testing accuracy. This is because more elements and layers are added to your assembly.

Figure 1

In figure 1, you will see a traditional ELD testing process where the electricity is grounded allowing to ELD unit to provide accurate breach detection.

Figure 2

In figure 2, notice the extra layer of insulation that stops the electricity from grounding. This masks breaches unless a grounding medium is installed.

While testing through overburden provides insight into breaches and leak locations, accuracy may be impacted.

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