Describe the correct use of a full-body harness while working at heights on a WEC.

The correct use of a full-body harness while working at heights on a Wave Energy Converter (WEC) is critical for fall protection. First, inspect the harness before each use. Check for any signs of damage, such as cuts, tears, abrasion, corrosion, or deformation. Ensure that all buckles, D-rings, and other hardware are in good working condition. Second, adjust the harness to fit snugly and comfortably. The leg straps should be snug but not too tight, allowing for freedom of movement. The chest strap should be positioned across the chest, not the neck, and should be adjusted to prevent the harness from slipping off in the event of a fall. Third, connect the harness to a suitable anchorage point using a lanyard or self-retracting lifeline (SRL). The anchorage point must be capable of supporting at least 5,000 pounds per worker and should be positioned directly above the work area to minimize swing fall. Fourth, ensure that the lanyard or SRL is properly connected to the D-ring on the back of the harness between the shoulder blades. The lanyard or SRL should be as short as possible to minimize the fall distance. Fifth, before starting work, perform a swing fall hazard analysis to identify any potential obstacles that could be struck during a fall. Ensure that there is sufficient clearance below the work area to prevent contact with the ground or other objects in the event of a fall. Sixth, maintain three points of contact at all times while working at heights. This means that at least one hand and two feet, or two hands and one foot, must be in contact with a stable surface. Finally, after a fall, the harness and lanyard or SRL must be removed from service and inspected by a qualified person before being used again. A fall arrest system is designed to arrest, not prevent, a fall; the system must be appropriately matched to the specific hazard.