Electrical / Electronics
Exact Iz lookup from user table
Looks up base ampacity Iz only for an exactly entered section in the user-supplied table.
Related calculators
Cable ampacity after correction
Multiplies the manually provided base ampacity Iz by a correction factor.
Manual cable overload conditions check
Checks the provided Ib, In, Iz and I2 values without standards-table sizing.
Single-phase selection from user table
Selects the smallest entered section that meets the manual current conditions and voltage-drop limit.
Three-phase selection from user table
Selects the smallest entered section for a simplified balanced three-phase system.
Historical insulated-copper ampacity
Historical data from a 1938 publication. Exact Iz lookup for educational and comparative use only.
Manual Iz compared with historical value
Compares manually entered Iz with the historical insulated-copper value without PASS/FAIL judgement.