18/30 kV XLPE insulated steel wire armoured three-core cables with aluminium conductor
According to IEC 60502-2

CONSTRUCTION :
1- Aluminium conductor
2- Inner semi-conductive layer
3- XLPE insulation
4- Outer semi-conductive layer
5- Semi-conductive tape
6- Copper tape screen
7- Filling
8- PVC separation sheath
9- Galvanized round steel wire armour
10- Galvanized steel tape helix
11- PVC outer sheath

APPLICATION:
Under heavy duty conditions,under ground, in power and switching stations, urban networks, industrial plants, where there is a risk of mechanical damage.
Permissible operating temperature 90°C
Permissible short circuit temperature 250°C
(5 s max. duration)