ETL-8

COMPACT CABLE TEST VAN

Van-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.
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FITS INTO COMPACT VEHICLES

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ETL-8 can fit into most minivans, which is an ideal solution for cable fault location in dense urban areas and on narrow streets.

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DC TESTING

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ETL-8 system allows to carry out cable acceptance tests with DC (rectified) high voltage up to 8 kV.

FAULT PRE-LOCATION

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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:

Low-voltage method

  • TDR (time-domain reflectometry): low-resistance faults, open cable breaks, various impedance changes characterization (cable sleeves, branches, etc.), total cable length measurement (incl. on a drum or bundle) and cable shortening ratio measurement.

High-voltage methods

  • ARC/ARC multi-shot (arc reflection method): high-resistance and unstable faults, minimal harmful effects on a cable.
  • ICE (impulse current envelope method): high-resistance faults that cannot be converted to low-resistance by burning faulty insulation.
  • DECAY (voltage wave oscillation method): faults with high breakdown voltage.
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BURN UNIT

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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.

SURGE WAVE GENERATOR WITH A SURGE LEVELS SWITCH

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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.

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SAFETY

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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.

* Pictures used herein are for illustration purposes only. Products' specifications are subject to change without notice. *




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