Skip to content

Cable Calc Formula !!exclusive!! Online

[ S = \fracI_sc \cdot \sqrtt\sqrt\epsilon \cdot \frac1k ] In non-linear loads, harmonic currents cause extra (I^2R) losses. The effective RMS current is:

For AC circuits:

[ I = \sqrt\frac\theta_max - \theta_ambR_dc \cdot \left(1 + \alpha(\theta_max - 20)\right) \cdot \left( R_th \right) ] cable calc formula

[ S = \fracI_sc \cdot \sqrttk ]

And always, always derate for grouping.