3.1 For the purpose of the ship's description,
any necessary information regarding the design of the ship should
be provided to the Administration along with description of ship essential
systems' design and functionality following a fire or flooding casualty.
As a minimum, such information and description should include:
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.1 the design criteria for each individual essential
system or group of essential systems, to achieve compliance (e.g.,
separation, duplication, redundancy, protection, or a combination
of the above);
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.2 the basic layout of the vessel including boundaries
of compartments subject to the casualty (watertight or "A" class boundaries),
e.g., in the form of plan views and cross-sections, including, but
may not be limited to: general arrangement plan, capacity plan, watertight
subdivision plan, space fire categorization plan (or structural fire
protection plan), plan of spaces protected by fixed fire-extinguishing
systems, etc.;
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.3 criteria adopted for the selection of safe
areas and intended locations;
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.4 a list of all systems that are intended to
be submitted for assessment. It should be noted that although such
a list would include, in the first instance and as a minimum, all
essential systems referred to in SOLAS regulations
II-2/21.4 and 22.3, their
actual number and identification may vary depending on the size, type,
arrangements, design, etc., (e.g., propulsion systems: shaft or podded
propulsion units, etc.) of the ship;
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.5 drawings/documents describing the location,
arrangement and connections of essential systems (including any of
their components) mentioned in SOLAS
regulation II-2/21 or II-2/22;
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.6 the description of the power supply for the
essential systems;
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.7 data regarding the minimum speed vs. weather
and sea conditions (e.g., results of model tank tests in sea keeping
conditions including consideration of wind forces); and
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.8 any additional design detail intended to ensure
or support the ship systems' capabilities.
3.2 Additional information about the intended
area of operation, the operating pattern or patterns (which may be
used to define any intended speed/maximum distance for safe return
to port) should be included in the ship's description.
3.3 Interpretations as contained in paragraph
1 of appendix 1 to these Interim Explanatory Notes may be used when
completing the ship's description.