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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
${10}^6\frac{F_{lay,3c} \rho_{c}}{A_{c}}$CIGRE TB 880 Guidance Point 23, at 20°C
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
$R_{c,ins}$
Electrical resistance @ field limited conductor temperature [$\Omega$/m]
$R_{cDC}$
Electrical resistance DC conductor [$\Omega$/m]