How To Carry Out Ze & PFC Electrical Tests On a Single Phase Board | PTT

Ze is a measurement of the external earth fault impedance of the installation. It is the measured resistance of the supply transformer winding, the supply phase conductor, and the earth return path of the supply.

A PFC test, or Prospective Fault Current test calculates the current that will flow in the event of an earth fault.

It is essential that every circuit board is tested to make sure that the actual loop impedance does not exceed that specified for the protective device concerned. If you were to come across an electrical fault, it could be incredibly dangerous, this is what testing is for, to prevent and avoid these incidents. At Proactive Technical Training, we are here to ensure your safety when it comes to technical and electrical training.

For more information on the technical training services we provide, head to our website:
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