|top|: Iec 949 Pdf

IAD=K⋅St⋅ln(θf+βθi+β)cap I sub cap A cap D end-sub equals the fraction with numerator cap K center dot cap S and denominator the square root of t end-root end-fraction center dot the square root of l n open paren the fraction with numerator theta sub f plus beta and denominator theta sub i plus beta end-fraction close paren end-root

$$ J₀ = \fracIS = \frac143.2\sqrtt ; \textA/mm² $$ iec 949 pdf