Separation of conductors in a system

In multi-core cables, the axial separation depends on the sreen and sheath construction.

In arrangements with single-core cables, the axial separation is the shortest distance between the center of two phases.

Symbol
$s_c$
Unit
mm
Formulae
$d_x+t_{2i}$Multi-core cables with common screen/sheath
$d_x+t_{2i}+2\left(t_{scb}+t_{sc}+t_{scs}\right)$Multi-core cables with separate screen and common sheath
$D_{sh}$Multi-core cables with separate screen/sheaths
$D_{shj}$Three-core cables with jacket around each core