Cableizer ®

Diameter over filler

Symbol
$D_{f}$
Unit
mm
Formulas
$D_{scb}-2t_{scb}$common screen / common sheath (type CC)
$F_{x} D_{scs}+2t_{f}$separate screen / common sheath (type SC)
$F_{x} D_{sh}+2t_{f}$separate screen / separate sheaths (type SS)
$F_{x} D_{shj}+2t_{f}$jacket around each core (type SSJ)
$\frac{3D_{shj}+D_{shj} \pi}{\pi}$equivalent diameter three-core cable without a filler (type Triplex)
Related
$D_{scb}$
Diameter over screen bedding [mm]
$D_{scs}$
Diameter over screen serving [mm]
$D_{sh}$
Diameter over sheath [mm]
$D_{shj}$
Diameter over sheath jacket [mm]
$F_{x}$
Geometrical distance factor for multi-core cables
$\pi$
Archimedes' constant $\pi$
$t_{f}$
Thickness of filler/belt insulation [mm]
$t_{scb}$
Thickness screen bedding [mm]
Used in
$A_{f}$
Cross-sectional area filler [mm$^2$]
$c_{c}$
Distance conductor axis—cable axis [mm]
$D_{core}$
Diameter over core cable [mm]
$G_{1}$
Geometric factor $G_1$
$r_{osc}$
Radius over capacitive insulation layers [mm]
$t_{sha}$
Total thickness between separate sheath and armour [mm]