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Electrical resistance DC conductor 20°C

Electrical DC resistance of conductor at 20°C.

Symbol
$R_{c20}$
Unit
$\Omega$/m
Formulas
${10}^6\frac{\rho_c}{A_c}$at 20°C, IEC 60287
${10}^6\frac{F_{lay,3c} \rho_c}{A_c}$at 20°C, Cigre TB 880 GP 23
Related
$A_c$
Cross-sectional area conductor [mm$^2$]
$F_{lay,3c}$
Effective length per unit lay length twisted conductors
$\rho_c$
Electrical resistivity conductor material [$\Omega$.m]
Used in
$R_{cDC}$
Electrical resistance DC conductor [$\Omega$/m]