Prysmian 20110531 is a BFOU 1 kV three-core power cable with 6 mm² copper conductors and a 6 mm² concentric earth screen, approximately 18 mm outside diameter in a black mud-resistant sheath. Designed to marine and offshore fire performance standards, it serves low-voltage power and heavy-duty control circuits on ships and rigs. This item is listed as phased out and supplied by the metre from 500 m drum lengths while stock remains, manufactured in Norway. Typical applications include shipboard sub-distribution, motor circuits, and installations in fire-safety-critical areas.