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July 2, 2015 | New calibrated fault solution for better cabling diagnostics

CEA LIST has developed some cutting-edge solutions for detecting and analyzing faults in electrical cable networks. CEA LIST innovations in cabling diagnostics are commercialized by startup WiN MS. CEA LIST continues to pursue advances to improve the solutions in the lab—work that requires generating intermittent faults, resistive and capacitive faults, and electric arc faults. The new solutions will help researchers “standardize” these faults.

winms 2A circuit board that introduces faults into the cable

Until now, researchers didn’t have a way to generate calibrated, reproducible faults. Instead, they had to resort to creating short circuits or breaking circuits manually. CEA LIST’s new intermittent fault generator—an electronic circuit board—will provide a solution.

Researchers can simply hook an electric cable up to the circuit board to generate the type of fault they are investigating:

  • Impedance faults (intermittent or not)
  • Intermittent faults with programmable durations, which, if needed, can be less than what current solutions can detect
  • Parallel electric arc faults that mirror what occurs in actual use when a cable’s insulation is worn or damaged
  • Serial electric arc faults, due to cable wear at the connector

Towards “standard” faults?

Now that it is possible to generate reproducible faults with calibrated duration and severity, it is also possible to come up with standard faults. A standard would be useful in evaluating the performance of cabling diagnostics systems as compared to a clearly-established reference.