Cableizer
Log in

Specific short-circuit parameter

Constant depending on the material of the current carrying component.

Symbol
$K_k$
Unit
A.s$^{1/2}$/mm$^2$
Formulas
$\sqrt{\frac{{10}^{-12}\sigma_{kc} \left(\beta_k+20\right)}{\rho_{k20}}}$
Related
$\beta_k$
Reciprocal of temperature coefficient metallic component [K]
$\rho_{k20}$
Electrical resistivity metallic component [$\Omega$.m]
$\sigma_{kc}$
Volumetric heat capacity metallic component [J/(K.m$^3$)]
Used in
$I_{kAD}$
Short-circuit current, adiabatic [kA]
$\theta_{kf}$
Final temperature [°C]