Short circuit current (PSCC)
for mono-phase systems.

Calculates the short circuit current also called fault current or prospective short circuit current (PSCC) of a mono-phase or DC line, PSCC and maximum current values are essential for choosing the right protection.

Data input

Selection of conductor material

Electrolytic copper Laminated aluminium

Specific resistance

Ohm*mm²/m

Voltage of the circuit

V

Wire section

mm²

Line length

m

Same section for the two wires

(AC and DC lines)

Section of the neutral wire halved

(only AC lines)

Notes.
The protection system must have the following characteristics :

• Short circuit interrupting rating much higher than Imax.
• Current limiter on values much lower than PSCC.