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Ok, let's say you want to do a measurement of the short-circuit impedance relating to the electrical system of a house/room/lab/whatever. This is something you usually have to do if you want to choose the correct level of the protective devices.

I'll show you how to do a measurement of:

  • short-circuit impedance in case of a single-phase failure;
  • short-circuit impedance in case of a two-phase failure.

All you need is an impmeter and a multimeter.

...continue reading "How to do a short-circuit impedance measurement"