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Coefficient N for partial transient temperature rise

This is the coefficent $N_0$ used for calculating cable partial transient temperature rise acc. to IEC 60853-2.

Symbol
$N_0$
Unit
s$^2$
Formulae
$Q_A T_A Q_B T_B$
Related
$Q_A$
Element A of two-part thermal circuit [J/(m.K)]
$Q_B$
Element B of two-part thermal circuit [J/(m.K)]
$T_A$
Element A of equivalent thermal circuit [K.m/W]
$T_B$
Element B of equivalent thermal circuit [K.m/W]
Used in
$a_0$
Coefficient a for partial transient temperature rise [1/s]
$b_0$
Coefficient b for partial transient temperature rise [1/s]