Datem Neptune 5000, Техническое руководство

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Neptune 5000
© Copyright Datem Limited 2014
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prevent the potential for any fastenings friction welding together, all nuts and
bolts should be assembled using an anti-seize compound. Attention should be
taken to ensure that the correct washers and Nylock nuts are used in the
appropriate locations, to prevent frame failure during operation.
Umbilical Termination
In some situations it may be necessary to remake the umbilical termination,
due to cable shortening or replacement through damage. Whilst not supplied
by Datem, if the termination mounted on the umbilical is an open spelter
socket it can normally be re-used. To reuse the termination, cut the cable
close to the end of the socket, and drill out the centre. The remaining cast
Wirelock® can be removed with a small chisel and a hammer.
When remaking the termination, it is important to ensure that the steel wire
armour on the cable is not allowed to start unwinding when it is cut. With the
open socket slid over the cable, follow the instructions enclosed with the
Wirelock® kit for fitting. A sample instruction sheet for the Wirelock® kit can
be found in appendix A, but caution should be taken to ensure that the
Wirelock® supplied is the same product. Care should be taken to ensure that
the coaxial cable core of the umbilical exits the open socket in the centre, and
is not coated in any of the Wirelock® compound. Please refer to appendix B
for hazard information related to this operation.
NOTE: It is recommended in addition to brooming the wire, to bend the end
15mm of every strand round on itself to form a hook shape.
Maintenance
Appropriate safe working practices should be followed to ensure
that all hazards are minimised.
When the system is in operation, it should be washed down with clean, salt-
free water whenever it is returned to the deck of the ship. This will reduce
corrosion, and reveal any damage to the frame members. Particular attention
should be paid to the condition of the open socket fitted to the umbilical, and
all the lifting arrangement that connects it to the frame’s top plate. Any
damage, creepage, or fractures in any of these parts demands immediate
replacement before further use.
The electrical cables connecting the umbilical to the Power Pod should be
visually inspected regularly to ensure there are no chafes or cut in the
insulation. The connectors on all these cables should be tightly fitted with no