A10 (Advanced) Multi-Pulse Current Fault Tester — Application Scenarios

Product Positioning

The A10 (Advanced) is a multi-pulse current fault tester designed for cable fault pre-location. It is built for power utilities, cable repair teams, and third-party diagnostic service providers, specifically to handle difficult-to-locate faults such as high-resistance, intermittent, and water-tree faults.

Typical Application Scenarios

1. Pre-location of faults in medium-voltage distribution cable networks
   Ideal for 10kV/35kV distribution networks. With extensive cable routes and hidden fault points, the A10 quickly identifies the faulted section, allowing maintenance crews to move from full-line investigation to targeted excavation.

2. High-resistance and intermittent faults
   For high-resistance faults that cannot be broken down by a single impulse, and intermittent faults that only flash over under repeated stress, the multi-pulse sequence creates stable, repeatable flashovers at the fault point. This produces cleaner waveforms and significantly improves pre-location success rates.

3. Long-distance cables and mixed overhead-cable lines
   Multi-pulse current testing offers low signal attenuation and long measurement range, making it suitable for long rural feeders and mixed overhead-cable lines where the fault point may be far from the test end.

4. Emergency restoration after extreme weather
   When storms, heavy rain, or floods cause cable moisture ingress and widespread outages, the A10 can be rapidly deployed from a service vehicle to shorten restoration time and reduce customer losses.

5. Dense urban underground cable networks
   For cables installed in tunnels, ducts, and cable pits where direct inspection and excavation are difficult, the A10 narrows the search area first. Combined with a pinpointer, it enables precise location with minimal excavation and traffic disruption.

6. Water-tree aging and moisture-related faults in aged cables
   Insulation degradation and moisture ingress in long-service cables often produce inconspicuous fault characteristics. Repeated multi-impulse excitation improves detection of these hidden faults.

7. Complex systems such as GIS terminations and cross-bonded cables
   TDR waveforms from GIS cable terminations, cross-bonded systems, and multi-branch lines are often complex. The multi-pulse current method offers better interference resistance and produces clearer, more interpretable fault waveforms.

8. Continuity protection for industrial power networks
   For industries with high continuity requirements — petrochemical, metallurgy, mining, and data centers — fast fault location and restoration help avoid production downtime and economic losses.

9. Third-party testing and engineering services
   Cable fault diagnostic service companies can use the A10 as a standard pre-location tool, forming a complete workflow with an acoustic-magnetic pinpointer: pre-location → precise pinpointing → post-repair verification.

Typical Workflow

1. Isolate the circuit, verify zero voltage, and install grounding connections to confirm site safety
2. Connect the test leads at the cable end and configure the test parameters
3. Start the multi-pulse sequence and observe the repeatable flashover waveform at the fault point
4. Read the pre-location distance and determine the faulted cable section
5. Use an acoustic-magnetic pinpointer to confirm the exact fault location
6. After repair, perform insulation and withstand voltage verification

Core Value

• Pre-locates high-resistance, intermittent, and water-tree faults in a single process
• Long range and strong interference resistance for complex cable routes
• Combined with an acoustic-magnetic pinpointer, reduces excavation scope and speeds up restoration
• Reduces outage time, making it ideal for emergency response and widespread fault scenarios