Steady-state current before transient

This is a current used in IEC 60853 methods for cyclic rating and emergency rating. In case of cyclic rating it is the steady-state current of the cable system which is multiplied by the cyclic rating factor $M$ to obtain the peak current. In case of emergency rating it is the initial current before the emergency load current is being applied.

Symbol
$I_{c,1}$
Unit
A