Prospective (available) Short-Circuit Current (at a given point in a circuit)    IEEE and IEC

The maximum current that the power system can deliver through a given circuit point to any negligible impedance, short circuit applied at the given point or at any other point that will cause the highest current to flow through the given point.

NOTE 1: This value can be in terms of either symmetrical or asymmetrical, peak or root-mean-square (rms) current, as specified.

NOTE 2: In some resonant circuits, the maximum available short-circuit current may occur when the short circuit is placed at some other point than the given one where the available current is measured.