Values for specific electrical resistivity of sheath material at 20°C. are taken from standard IEC 60287-1-1 Ed.2.1 where available and from standard technical handbooks for the others.

Symbol
$\rho_{\mathrm{sc}}$
Unit
Ω.m
Related
$M_{\mathrm{sc}}$
Used in
$R_{\mathrm{sc}}$
$\rho_{\mathrm{k20}}$
Choices
MaterialValue
Cu1.7241e-08
Al2.8264e-08
Brz3.5e-08
CuZn3.9e-08
S1.38e-07
SS7e-07
Zn6.11e-08