Low Voltage Surge Wave Tester

The LV Surge Tester is a sturdy and dependable tool crafted to accurately identify underground power cable faults. It does this by using the acoustic method alongside a compatible Surge Wave Receiver.

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The LV Surge Tester operates by sending a high-voltage surge through a faulty underground cable. When the surge reaches the fault, it generates a spark that produces a distinct acoustic “thump.” A technician uses a sensitive Surge Wave Receiver at ground level to detect this sound and accurately pinpoint the fault location.
The difference between pinpointing and pre-locating lies in their methods and objectives. Pinpointing is the final, precise step used to identify the exact fault location on the ground, typically using an acoustic method. Pre-locating, in contrast, is a preliminary step performed from a safe distance such as a manhole or substation using techniques like Impulse Current (ICM) or Arc Reflection (ARM) mode. This method measures the time it takes for the surge to reflect off the fault, allowing the technician to estimate the fault’s approximate distance before moving on-site to pinpoint it.