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Cross-sectional area insulation (IEC 60853)

In case of multi-core cables, an equivalent conductor is considered according to IEC 60853.

Symbol
$A_{i,t}$
Unit
mm$^2$
Formulas
$\frac{\pi}{4} \left({D_{i,t}}^2-{d_{c,t}}^2\right)$
Related
$d_{c,t}$
External diameter conductor, transient [mm]
$D_{i,t}$
Diameter over insulation, transient [mm]
$\pi$
Archimedes' constant $\pi$
Used in
$Q_{i,t}$
Thermal capacitance insulation (IEC 60853) [J/(m.K)]