WSparky 10 Report post Posted January 12 When calculating fault current in the adiabatic equation for min csa. Do I use a calculated Zs from Ze and R1 + R2 or do I use the tabulated max Zs. If either, why? Thank you. 0 Share this post Link to post Share on other sites
NozSpark 1,043 Report post Posted January 12 you use your calculated (or measured) current, then get the operating time (that relates to that current) from the appropriate chart 0 Share this post Link to post Share on other sites