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Electrical field coefficient insulation material

Electrical field strength coefficient (or coefficient of variation on the electric field) of the specific direct current conductivity of insulation material. Often the symbol $\beta$ is used.

Symbol
$\gamma_i$
Unit
mm/kV

Default
0.046

Formulas
$\frac{1}{E_i}$
Related
$\alpha_i$
Temperature coefficient of conductivity insulation material [1/K]
$E_i$
Electrical field strength [kV/mm]
$\kappa_i$
Electrical conductivity insulation material [S/m]
$M_i$
Insulation material
Used in
$\delta_i$
Electrical thickness of insulation material [m]
$\Delta w_d$
Increment of volumetric density of dielectric losses in HVDC cables [W/m$^3$]
$\kappa_i$
Electrical conductivity insulation material [S/m]
$w_d$
Volumetric density of dielectric losses [W/m$^3$]