Thermal resistance of insulation screen

Symbol

$T_{is}$

Unit

K.m/W

Formulae

$\frac{\rho_i}{2\pi} \ln\left(\frac{D_{ins}+2t_{is}}{D_{ins}}\right)$

Related

$D_{ins}$

Diameter over insulation [mm]

$\pi$

Archimedes' constant $\pi$

$\rho_i$

Thermal resistivity of insulation [K.m/W]

$t_{is}$

Thickness of insulation screen [mm]

Used in

$R_{c2}$

Thermal resistance, 2nd loop [K.m/W]

$T_1$

Thermal resistance between one conductor and sheath [K.m/W]

$T_i$

Thermal resistance of insulation [K.m/W]