Cable Fault Location – fast prelocation & precise pinpointing
From distance-to-fault to pinpoint: professional systems shorten outages and minimize excavation. TDR prelocation, sheath fault locating and surge/impulse techniques deliver clear results on power, control and telecom cables.
- TDR prelocation for quick fault distance
- Sheath/earth fault locating with step-voltage & impulse methods
- Pinpointing with A-frame, acoustic & magnetic sensors
- Structured workflows with reports & safety measures
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Fault-location methods
- TDR (prelocation): time-domain reflectometry to estimate distance to fault.
- Sheath/earth faults: DC or pulsed techniques to narrow down insulation/jacket defects.
- Pinpointing: acoustic/magnetic methods with A-frame, ground mic or EM probe.
Selection guide
- Cable & voltage: power, control or telecom; LV/MV grids.
- Fault type: earth/short, high-resistance, open circuit, sheath defect.
- Environment: urban noise, surface type, access constraints.
- Workflow: combined prelocation, surge generator & pinpoint toolsets speed the job.
Accessories & safety
- Test leads, grounds/returns, A-frame, ground mics, EM probes
- Surge generators, clamps, adapters
- PPE, barriers, earthing & short-circuit kits
FAQ
- Prelocation vs. pinpoint—what’s the difference?
- Prelocation estimates distance (e.g., TDR); pinpointing finds the exact surface position.
- How do I document results?
- Store TDR/point data and field notes to provide traceable reports.
- Does it work on shielded/PE cables?
- Yes with the right coupling and methods; sheath faults can be isolated precisely.