according to DIN0815Nominal voltage: 300 VConstruction: Bare copper conductor, single wire (solid), PVC YI1 insulation, 2 wires twisted to form a pair, pairs twisted in layers to form a core, core wrapping made of plastic foil, static shield made of aluminum-laminated plastic foil with copper drain wire. PVC jacket, color: grayUse: As an installation cable with electromagnetic shielding, for telecommunications purposes for permanent installation, in dry and damp rooms, outdoors (but not in direct sunlight), but not in the ground.