Cableizer ®

Thermal resistance part 1

This considers the insulation including the conductor shield (inner semi-conducting layer) but without the insulation screen. The insulation screen is added to the 2nd loop.

Symbol
$R_{c1}$
Unit
K.m/W
Formulas
$T_{1}-T_{is}+T_{scb}+T_{scs}$single-core cables
$\frac{T_{1}}{3}-\frac{T_{is}}{3}+\frac{T_{scb}}{3}+\frac{T_{scs}}{3}$three-core cables
Related
$T_{1}$
Thermal resistance conductor—sheath [K.m/W]
$T_{is}$
Thermal resistance insulation screen [K.m/W]
$T_{scb}$
Thermal resistance screen bedding [K.m/W]
$T_{scs}$
Thermal resistance screen serving [K.m/W]