The group correction factors of all the installation methods corresponding to the UNE 211435 and IEC 60364-5-52 codes have been checked, to increase the number of conductors per pole (number of circuits) from 9 to 20.
It is possible that some tables, for certain installation methods, do not provide a group correction factor for a high number of conductors, in which case the program uses the most unfavourable factor amongst those indicated in the table, and indicates it with a warning message when checking the maximum admissible current or ampacity.
This increase allows users to use, for example, cables of over 2500 A for transformer outputs.