Iec 949 Pdf ((link)) -

The official source for the most up-to-date version of the standard.

= Duration of the short circuit in seconds (typically up to 5s) = Cross-sectional area of the conductor ( mm2m m squared θitheta sub i = Initial operating temperature before the fault ( ∘Craised to the composed with power C θftheta sub f = Maximum permissible final temperature after the fault ( ∘Craised to the composed with power C = Conductor material constant iec 949 pdf

Compliance with IEC 949 offers several benefits, including: The official source for the most up-to-date version