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Thermal resistance of conductor tape

Symbol
$T_{ct}$
Unit
K.m/W
Formulae
$\frac{\rho_{ct}}{2\pi} \ln\left(\frac{d_c+2t_{ct}}{d_c}\right)$
Related
$d_c$
External diameter of conductor [mm]
$\pi$
Archimedes' constant $\pi$
$\rho_{ct}$
Thermal resistivity of conductor tape [K.m/W]
$t_{ct}$
Thickness of conductor tape [mm]
Used in
$T_1$
Thermal resistance between one conductor and sheath [K.m/W]
$T_i$
Thermal resistance of insulation [K.m/W]
$\theta_{cs}$
Temperature over conductor screen [°C]
$\theta_i$
Temperature of insulation [°C]