Radius below the outer semi-conducting layer

Radius of the insulation without the insulation screen (outer semi-conducting layer). In case of nulti-core cables with common screen, this is the radius from the center of the cable to the common screen.

Symbol
$r_{osc}$
Unit
mm
Formulae
$\frac{D_i}{2}$multi-core cables with common screen
$r_{isc}+t_{ins}$otherwise