Cableizer ®

Diameter over jacket

Symbol
$D_{j}$
Unit
mm
Formulas
$D_{ar}+2\left(t_{j}+t_{jj}\right)$All cables except pipe-type
$Do_{sp}+2t_{j}$pipe-type cables
Related
$D_{ar}$
Diameter over armour [mm]
$Do_{sp}$
Outer diameter steel pipe [mm]
$t_{j}$
Thickness jacket [mm]
$t_{jj}$
Thickness of additional layer over jacket [mm]
Used in
$A_{j}$
Cross-sectional area jacket [mm$^2$]
$C_{sg}$
Capacitance shield - ground [F/m]
$D_{e}$
External diameter object [mm]
$J_{j}$
Moment of inertia (bending) jacket [mm$^4$]
$r_{osc}$
Radius over capacitive insulation layers [mm]
$T_{3}$
Thermal resistance jacket [K.m/W]
$T_{j}$
Thermal resistance jacket [K.m/W]
$T_{jj}$
Thermal resistance additional layer [K.m/W]