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Thermal capacitance B transient thermal circuit, screen/sheath

Symbol
$Q_{B,s}$
Unit
J/(m.K)
Formulas
$\frac{Q_{sc}+Q_{sh}}{q_1 n_c}$long-term transients
$\frac{\left(\frac{T_B-\frac{T_1}{2n_c}}{T_B}\right)^2 \left(Q_{sc}+Q_{sh}\right)}{q_1 n_c}$short-term transients
Related
$n_c$
Number of conductors cable
$q_1$
Ratio of losses screen bedding,screen serving
$Q_{sc}$
Thermal capacitance screen [J/(m.K)]
$Q_{sh}$
Thermal capacitance sheath [J/(m.K)]
$T_1$
Thermal resistance conductor—sheath [K.m/W]
$T_B$
Thermal resistance B transient thermal circuit [K.m/W]
Used in
$Q_B$
Thermal capacitance B transient thermal circuit [J/(m.K)]