To connect mooring components together, various shackle types may be used. Here, it is important to
consider the materials of construction. The internal frame of CB-Series buoys is constructed of Type 316
stainless steel. Thus, to avoid mixing metals, any shackles connected directly to the buoy should also
be made of 316 stainless steel.
At the seafloor, galvanized steel shackles, bottom chain and anchors may be used, provided there is
consistency of materials. To guard against corrosion in saltwater environments, the buoy frame should
be equipped with zinc anodes (NexSens part number
).
For protection of sensor data cables, it is recommended to secure the cable using cable ties at many
points along the sensor wireline (or equivalent mooring line). This is to ensure that there is plenty of
slack in the data cable and that all loads are carried by the wireline/mooring line and NOT the data
cable. Twisting in the wireline should be reduced as much as possible. This can, in some cases, be
achieved by using a
at the point where the wireline connects to the primarily buoy
mooring line. A swivel should NOT be used directly at the connection to the buoy frame, as this will allow
the buoy to rotate around the mooring line connection. An exception to this would be if no sensors are
suspended below the depth of the buoy’s internal frame.
Deployment
Due to the size and total weight of medium-deep water moorings, it is strongly recommended to deploy
using an appropriately-sized vessel equipped with a crane and winch for controlled lifting and release of
the mooring system and buoy. The following describes the process for a typical deployment.
1. Lay out the buoy and mooring hardware on the vessel’s deck such that all connections can be
made and the mooring line can be paid out without risk of tangling.
S-shaped mooring with weight applied to avoid mooring rope coming into
contact with sensors.
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Summary of Contents for CB-450
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