A specialized device used for precise pinpointing of cable faults after pre-location has identified the general area of the issue.
How it works:
The pin-pointer combines acoustic and electromagnetic detection to locate faults with high accuracy. It typically works by detecting the flashover discharge caused by a high-voltage pulse applied to the faulty cable. The resulting sound and electromagnetic signals help technicians pinpoint the exact fault location.
Key Features:
- Acoustic detection – Identifies fault locations by listening for discharge sounds underground.
- Electromagnetic tracing – Uses signal induction to track the cable path and fault position.
- Bluetooth connectivity – Some modern systems provide wireless data transmission for ease of use.
- Adaptive noise suppression – Filters out environmental noise for clearer fault detection.
Applications:
- Locating faults in underground power cables
- Pinpointing sheath faults in insulated cables
- Assisting in cable route tracing before excavation
For example, the Cable Fault Pinpointer HVC-P combines acoustic and electromagnetic fault pin-pointing, sheath fault location, and tracing in a single unit.
