15.1.1 Before a new installation (or any alteration or addition to an existing
installation) is put into service, trials are to be carried out. These trials are in
addition to any acceptance tests which may have been carried out at the
manufacturer’s works and are to be based on the approved test schedules list as
required by Pt 3, Ch 10, 1.4 Plans and data submission 1.4.1.
15.1.2 The suitability of the positional mooring and/or thruster-assisted
positional mooring system is to be demonstrated during sea trials, observing the
following:
- Response of the system to simulated failures of major items of
control and mechanical equipment, including loss of electrical power.
- Response of the system under a set of predetermined manoeuvres
for changing:
- Location of area of operation;
- Heading of the unit.
- Automatic thruster control and line tension optimisation.
- Monitoring and consequence analyses.
- Simulation of line breakage and damping.
- Continuous operation of the thruster-assisted positional mooring
system over a period of 4 to 6 hours.
15.1.3 Two copies of the test schedules, as required by Pt 3, Ch 10, 1.4 Plans and data submission 1.4.1, signed by the Surveyor and Builder are to
be provided on completion of the survey. One copy is to be placed on board the unit
and the other submitted to LR.
15.1.4 Disconnect and reconnection of disconnectable positional mooring system
are to be tested during the trial campaign.
15.1.5 The mooring line integrity monitoring system of the positional mooring
system is to be tested during the trial campaign.
15.1.6 For turret moored offshore units, in so far as practical, the rotational
resistance of the turret bearing arrangement is to be tested during the trial
campaign.