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IEC 60287-1-3:2002 Annex A - Calcuation of impedances

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MOSEIFY_33

Electrical
Nov 10, 2023
1
thread238-502765

Hi

I'm trying to build a xlsx file to calculate the loading unbalance between parallel single core cables and their losses. I'm trying to understand the impedance matrix (zz) in Example 1, IEC 60287-1-3:2002 Annex A, however the resistances do not make quite logic to me, for starting why does the matrix is 8r*12c should not it be 12*12 and how is it evaluated.

 
 https://files.engineering.com/getfile.aspx?folder=25eadad4-3c75-4384-8b6c-833b150194ba&file=New_Microsoft_Excel_Worksheet.xlsx
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