Conditional short-circuit current is the value of the
alternating current
Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction. Alternating current is the form in w ...
component of a prospective current, which a switch without integral
short-circuit protection, but protected by a suitable short circuit protective device (SCPD) in series, can withstand for the operating time of the current under specified test conditions. It may be understood to be the RMS value of the maximum permissible current over a specified time interval (t
0,t
1) and operating conditions.
The
IEC definition is critiqued to be open to interpretation.
References
Electronic circuits
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