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Electrical conductivity insulation material

Specific direct current conductivity of insulation material at 0°C and 0 kV/mm electrical field strength. Often the symbol $\sigma$ is used.

The values were mainly taken from the book 'An Introduction to Materials Engineering and Science: For Chemical and Materials Engineers' chapter 8 by Brian S. Mitchell, Wiley Online Library, 2003 plus some papers.

Symbol
$\kappa_i$
Unit
S/m
Formulas
$\kappa_i e^{\alpha_i \theta_i+\gamma_i E_i}$
Related
$\alpha_i$
Temperature coefficient of conductivity insulation material [1/K]
$E_i$
Electrical field strength [kV/mm]
$\gamma_i$
Electrical field coefficient insulation material [mm/kV]
$M_i$
Insulation material
$\theta_i$
Temperature of insulation [°C]
Used in
$G$
Conductance [S/m]
$\lambda_i$
Parameter $\lambda$ for linear density of dielectric losses
$w_d$
Volumetric density of dielectric losses [W/m$^3$]
Choices
MaterialValueReference
PE3e-15HanyuYe2011 (MDPE type B)
HDPE1e-15Wiley, resistivity $10^{15}-5\cdot10^{16}$
XLPE1.5e-14Varia
XLPEf1e-14Diban2020 (XLPE low, medium, high)
PVC1e-14Wiley, resistivity $>10^{14}$
EPR1.7e-12Wiley, resistivity $\simeq 6 \cdot 10^{11}$
IIR1.7e-12Wiley, resistivity $\simeq 6 \cdot 10^{11}$
PPLP2.1e-15Kwon2015 (average)
Mass1e-16Jeroense1997
OilP6.7e-15Kwon2015 (average)
PP1e-14Wiley, resistivity $>10^{14}$
SiR1e-13Wiley, resistivity $\simeq 10^{13}$
EVA1e-14Wiley, conductivity $<10^{-14}$
XHF1e-15none