Section
3 Operations manual
3.1 General
3.1.2 It is the responsibility of the Owner to provide in the Operations
Manual all the necessary instructions and limits on the operation of the unit to
ensure that the environmental and operating loading conditions on which the
Classification is based will not be exceeded in service.
3.1.3 Where a National Administration has a specific requirement regarding the
contents of the Operations Manual, it is the responsibility of the Owner to comply
with such Regulations.
3.1.4 The Operations Manual is to be submitted when the plans of the unit are
being approved by LR. The Operations Manual will be reviewed in respect of those
aspects covered by Classification only.
3.1.5 Where a unit is modified during its service life, it is the Owner’s
responsibility to update the Operations Manual, as necessary, and advise LR of any
changes which may affect the Classification of the installation.
3.2 Information to be included
3.2.1 In general, the Operations Manual should include the following minimum
information, as applicable:
- General description and particulars of the unit.
- Chain of command and general responsibilities during all normal
operating modes and emergency operations.
- Limiting design data for each approved mode of operation,
including design and variable loading, draughts, air gap, wave height, wave
period, wind, current, minimum sea and air temperatures, assumed sea bed
conditions, orientation, and any other applicable environmental factors,
such as icing.
- A description of any inherent operational limitations for each
mode of operation and for each change in mode of operation. For ship units
and other surface type units, see also
Pt 3, Ch 1, 3.2 Information to be included 3.2.4.
- Permissible deck loading plan.
- General arrangement plans showing watertight and weathertight
boundaries.
- The location and type of watertight and weathertight closures,
vents, air pipes, etc., and the location of downflooding points.
- The location, type and weights of permanent ballast installed on
the unit.
- A description of the signals used in the general alarm, public
address, fire and gas alarm systems.
- Hydrostatic curves, or equivalent data.
- A capacity plan showing the capacities and the centres of
gravity of tanks and bulk material stowage spaces.
- Tank sounding tables or curves showing capacities, the centres
of gravity in graduated intervals and the free surface data of each
tank.
- Plans and description of the ballast system and instructions
for ballasting.
- Plan indicating hazardous areas.
- Fire control and safety/evacuation plans.
- Lightship data based on the results of an inclining experiment,
etc.
- Stability information in the form of maximum KG versus draught
curve, or other suitable parameters, based upon compliance with the required
intact and damaged stability criteria.
- Representative examples of loading conditions for each approved
mode of operation, together with the means for evaluation of other loading
conditions. For ship units and other surface type units, see also
Pt 3, Ch 1, 3.2 Information to be included 3.2.4.
- Positional mooring system, and limiting conditions of
operation.
- Description and limitations of any onboard computer used in
operations such as ballasting, anchoring, dynamic positioning and in trim
and stability calculations.
- Plan of towing arrangements and limiting conditions of
operation.
- Description of the main power system and limiting conditions of
operation.
- Details of emergency shut-down procedures.
- Identification of the helicopter used for the design of the
helicopter deck.
- Access manual and/or drawings showing access arrangement
and access openings.
3.2.2 Instructions for the operation of the unit are to include precautions to
be taken in adverse weather, changing mode of operation, any inherent limitations of
operations, approximate time required for meeting severe storm conditions, mooring
pattern/heading.
3.2.3 For self-elevating units, the manual is to include instructions on safety
during jacking-up and jacking-down of the hull, over the period of time that the
unit is in the elevated position, and during extreme weather conditions while in
transit, including the positioning and securing of legs, cantilever drill floor
structures and heavy cargo and equipment which might shift position. Limitations on
the maximum permissible rigid body motions of the unit, and allowable sea states
whilst elevating or lowering the legs.
3.2.4 For ship units and other surface type units, sufficient information is to
be supplied to the Master/Operator to enable him to arrange loading and ballasting
in such a way as to avoid the creation of unacceptable stresses in the unit’s
structure. This information is to be provided by means of a Loading Manual and in
addition, where required, by means of an approved loading instrument, see
Pt 1, Ch 2, 1 Conditions for classification. The Loading Manual may form part of
the Operations Manual, or may be a separate document.
|
| Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime
and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective
officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications
Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance
on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant
Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is
exclusively on the terms and conditions set out in that contract.
|
 |
|