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Coefficient M partial transient temperature rise

This is the coefficent $M_0$ used for calculating cable partial transient temperature rise acc. to IEC 60853-2.

Symbol
$M_{0}$
Unit
s
Formulas
$0.5\left(Q_{A} \left(T_{A}+T_{B}\right)+Q_{B} T_{B}\right)$
Related
$Q_{A}$
Thermal capacitance A transient thermal circuit [J/(m.K)]
$Q_{B}$
Thermal capacitance B transient thermal circuit [J/(m.K)]
$T_{A}$
Thermal resistance A transient thermal circuit [K.m/W]
$T_{B}$
Thermal resistance B transient thermal circuit [K.m/W]
Used in
$a_{0}$
Coefficient a partial transient temperature rise [1/s]
$b_{0}$
Coefficient b partial transient temperature rise [1/s]