| High-voltage cable length | ≥300 meters (coaxial cable) |
| High-voltage cable outer diameter | ≥φ12mm |
| High-voltage cable main insulation withstand voltage | ≥30kVDC |
| High-voltage cable outer sheath withstand voltage | ≥5kVDC |
| Number of high-voltage cable faults | ≥4, with ≥1 fault at a T-joint |
Panel Introduction
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Test Terminals:
1) Fault Phase: Connection port for the fault phase during high-voltage bridge fault testing;
2) Reference Phase: Connection port for the reference phase during high-voltage bridge fault testing;
3) Test Ground: Connection port for the test ground during high-voltage bridge fault testing;
4) Fault Point Proportion: Adjustment knob for the fault point proportion during high-voltage bridge fault testing;
5) Main Insulation: Connection port for the cable core when the cable fault tester tests for main insulation faults;
6) Test Ground: Connection port for the cable shielding layer when the cable fault tester tests for main insulation faults;
7) Grounding Post: Instrument grounding point for safety protection.
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