COMPACT CABLE TEST VANVan-based cable test and fault location system ETL-8 is used for testing cable insulation and locating cable faults using a variety of methods. Due to its compact size, ETL-8 may be installed in a minivan, yet it is a fully‑featured cable test and fault location system which incorporates burn module and surge wave generator, and is capable of faults pre‑location and cable insulation testing with high DC voltage.
ETL-8 can fit into most minivans, which is an ideal solution for cable fault location in dense urban areas and on narrow streets.
ETL-8 system allows to carry out cable acceptance tests with DC (rectified) high voltage up to 8 kV.
Detachable time-domain reflectometer RIF-9 included with the system is used for determining the distance to faults in electrical power cables with all the main pre‑location methods:
ETL-8 is supplied with burn unit as standard which delivers current of up to 100 mA at up to 8 kV voltage.
Fault conditioning through burning faulty cable insulation is used for converting high-resistance faults to low-resistance so that pre-location and/or pinpointing methods could subsequently be used.
A surge wave generator with up to 1000 J surge energy is used for pinpointing cable faults with an acoustic method.
The generator is supplemented with a surge level switch allowing to select output voltage in the ranges of 0…2 / 0…4 / 0…8 kV, which delivers maximum possible energy of the surge pulses.
All-round operator safety systems built into ETL-8 includes the following modules and devices:
✓ Overvoltage and overcurrent protection.
✓ Overheating protection.
✓ Equipment and vehicle chassis protective earthing.
✓ Continuous grounding monitoring system.
✓ Emergency stop button.
✓ Automatic discharge device.
✓ Light and sound indication of high voltage.
✓ Vehicle high-voltage compartment door closure sensors.
✓ Safety ON/OFF keylock switch.
✓ Self-health and safety monitoring of high-voltage switches.