Typical Multi core cable details in AutoCAD, dwg file.

This Architectural Drawing is AutoCAD 2d drawing of Typical Multi core cable details in AutoCAD, dwg file.  By definition, multicore cables have an outer sheath which surrounds all of the inner conductors. This is usually in the form of an extruded PVC or cross-linked polyethylene jacket, often combined with an aluminium sheath under the surface for electromagnetic shielding.