| 摘要 |
An obstruction 80A, (80B, Fig 11) for positioning in a recess (90, Fig 8) between an adjacent pair of security bulwarks (la, lb, 30, Fig 15) mounted outside a perimeter railing (20, Fig 2) of a vessel or marine installation. The obstruction comprises a rear end (81, Fig 6) for positioning towards the perimeter railing, a front end 83 for positioning away from the perimeter railing, a top side 82, an underside (84, Fig 6) and a pair of opposing lateral cheeks 85a, 85b separating the front end from the rear end. In addition, the obstruction comprises a connection facility 87, 88 for connecting the obstruction to at least one of the perimeter railing and the adjacent pair of security bulwarks. The top side slopes downwardly from the rear end towards the front end. A perimeter protection system (800A, Fig 8) and (800B, Fig 15) comprising such an obstruction, and a method of protecting a perimeter of a vessel or marine installation using such an obstruction are also disclosed. |
