laying indoors,in tunnel,in cable trench or direct in ground,able to bear external mechanical forces,able to ... armoured, PVC sheathed power cableFor laying indoors, in tunnel, in cable trench or direct in ground, able to bear external mechanical forces, ... armoured, PVC sheathed power cableFor laying indoors, in tunnel, in cable trench or direct in ground, able to bear external mechanical forces, able ...