The corrected capacity is: [ I_z = I_table \times C_a \times C_g \times C_i \times C_s ] where (I_table) is the tabulated value from Appendix B (Tables B52 to B57).
$$Z_s \le \fracU_0I_a$$
Calculate the design current ((I_d)) of the circuit. This is typically the rated current of the connected load or the circuit breaker’s nominal rating ((I_n)), whichever is lower. For multiple loads, apply diversity as allowed in Appendix C. as3000 cable selection