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Length of lay of armour

The value is the average of the length of lay of 1st and 2nd armour layer weighted by their thicknesses.

Symbol
$L_{lay,ar}$
Unit
mm
Formulae
$\frac{p_{a,1} t_{a,1}+p_{a,2} t_{a,2}}{t_{ar}}$
Related
$p_{a,1}$
Length of lay of 1st armour [mm]
$p_{a,2}$
Length of lay of 2nd armour [mm]
$t_{a,1}$
Thickness of 1st armour [mm]
$t_{a,2}$
Thickness of 2nd armour [mm]
$t_{ar}$
Thickness of armour [mm]
Used in
$F_{lay,ar}$
Effective length per unit lay length of armour
$H_1$
Component of inductance $H_1$ of armour [H/m]
$H_2$
Component of inductance $H_2$ of armour [H/m]
$\phi_{ar}$
Angle between armour and cable axis [rad]