AJ-2Y(St)YbY ( similar to VDE 0816/DIN 57816 PE insulated . star quad formation . shield of copper tape or copper wires . PVC sheath . armoured ) AJ-2YDYdY ( similar to VDE 0816/DIN 57816 PE insulated . star quad formation . shield of copper tape or copper wires . PVC sheath . armoured )