For the purpose of the Code, unless expressly provided otherwise,
the terms used therein have the meanings defined in this section.
1.3.3
Accommodation spaces are those
used for public spaces, corridors, lavatories, cabins, offices, hospitals,
cinemas, games and hobbies rooms, pantries containing no cooking appliances
and similar spaces. Public spaces are those portions of the accommodation
which are used for halls, dining rooms, lounges and similar permanently
enclosed spaces.
1.3.4
Administration means the Government
of the State whose flag the unit is entitled to fly.
1.3.5
Anniversary date means the
day and month of each year which will correspond to the date of expiry
of the certificate.
1.3.6
Auxiliary steering gear is
the equipment which is provided for effecting movement of the rudder
for the purpose of steering the unit in the event of failure of the
main steering gear.
1.3.9
Certificate means Mobile Offshore
Drilling Unit Safety Certificate.
1.3.10
Coastal State means the Government
of the State exercising administrative control over the drilling operations
of the unit.
1.3.11
Column-stabilized unit is
a unit with the main deck connected to the underwater hull or footings
by columns or caissons.
1.3.12
Continuous “B” class
ceilings or linings are those “B” class ceilings
or linings which terminate only at an “A” or “B”
class division.
1.3.13
Control stations are those
spaces in which the unit’s radio or main navigating equipment
or the emergency source of power is located or where the fire recording
or fire control equipment or the dynamic positioning control system
is centralized or where a fire-extinguishing system serving various
locations is situated. In the case of column-stabilized units a centralized
ballast control station is a “control station”. However,
for purposes of the application of chapter 9, the space where the
emergency source of power is located is not considered as being a
control station.
1.3.14
D or D-value means the largest
dimension of the helicopter when rotor(s) are turning measured from
the most forward position of the main rotor tip path plane to the
most rearward position of the tail rotor path plane or helicopter
structure.
1.3.15
Dead ship condition is the
condition under which the main propulsion plant, boilers and auxiliaries
are not in operation due to the absence of power.
1.3.16
Depth for freeboard has the
same meaning as defined in regulation 3 of the 1988 LL Protocol.
1.3.17
Diving system is the plant
and equipment necessary for the safe conduct of diving operations
from a mobile offshore drilling unit.
1.3.18
Downflooding means any flooding
of the interior of any part of the buoyant structure of a unit through
openings which cannot be closed watertight or weathertight, as appropriate,
in order to meet the intact or damage stability criteria, or which
are required for operational reasons to be left open.
1.3.19
Emergency source of electrical power is
a source of electrical power intended to supply the necessary services
in the event of failure of the main source of electrical power.
1.3.20
Emergency switchboard is a
switchboard which, in the event of failure of the main system of electrical
power supply, is directly supplied by the emergency source of electrical
power and/or the transitional source of emergency power and is intended
to distribute electrical energy to the emergency services.
1.3.21
Enclosed spaces are spaces
delineated by floors, bulkheads and/or decks which may have doors
or windows.
1.3.22
Freeboard is the distance
measured vertically downwards amidships from the upper edge of the
deck line to the upper edge of the related load line.
1.3.23
FSS Code means the International
Code for Fire Safety Systems, adopted by the Maritime Safety Committee
of the Organization by resolution MSC.98(73),
as amended.
1.3.24
FTP Code means the International
Code for Application of Fire Test Procedures, adopted by the Maritime
Safety Committee of the Organization by resolution
MSC.61(67), as amended.
1.3.25
Gastight door is a solid,
close-fitting door designed to resist the passage of gas under normal
atmospheric conditions.
1.3.26 'H' class divisions are those divisions which meet
the same requirements as "A" class divisions, as defined in SOLAS regulation II-2/3,
except that, when tested according to the Fire Test Procedures Code, the furnace control
temperature curve is replaced with the furnace control temperature curve for hydrocarbon
fires defined in national or international standards.footnote
1.3.27
Hazardous areas are all those areas where, due to the possible presence of a
flammable atmosphere arising from the drilling operations, the use without proper
consideration of machinery or electrical equipment may lead to fire hazard or explosion.
1.3.28
Helideck is a purpose-built helicopter landing platform located on a mobile
offshore drilling unit (MODU).
1.3.29
Industrial machinery and components are the machinery and components which are
used in connection with the drilling operation.
1.3.30
Length (L) has the same meaning as defined in regulation 3 of the 1988 LL
Protocol.
1.3.31
Lightweight is the displacement of a unit in tonnes without variable deck load,
fuel, lubricating oil, ballast water, fresh water and feedwater in tanks, consumable
stores, and personnel and their effects.
1.3.33
LSA Code means the International Life-Saving Appliance Code, adopted by the
Maritime Safety Committee of the Organization by resolution
MSC.48(66), as amended.
1.3.34
Machinery spaces are all machinery spaces of category A and all other spaces
containing propelling machinery, boilers and other fired processes, oil fuel units,
steam and internal combustion engines, generators and major electrical machinery, oil
filling stations, refrigerating, stabilizing, ventilation and air-conditioning machinery
and similar spaces; and trunks to such spaces.
1.3.35
Machinery spaces of category A are all spaces which contain internal
combustion-type machinery used either:
or which contain any oil-fired boiler or oil fuel unit; and
trunks to such spaces.
1.3.36
Main source of electrical power is a source intended to supply electrical power
for all services necessary for maintaining the unit in normal operational and habitable
conditions.
1.3.37
Main steering gear is the machinery, the steering gear power units, if any, and
ancillary equipment and the means of applying torque to the rudder stock, e.g. tiller or
quadrant, necessary for effecting movement of the rudder for the purpose of steering the
unit under normal service conditions.
1.3.38
Main switchboard is a switchboard directly supplied by the main source of
electrical power and intended to distribute electrical energy to the unit’s services.
1.3.39
Maximum ahead service speed is the greatest speed which the unit is designed to
maintain in service at sea at its deepest seagoing draught.
1.3.40
Maximum astern speed is the speed which it is estimated the unit can attain at
the designed maximum astern power at its deepest seagoing draught.
1.3.41
Mobile offshore drilling unit (MODU) or unit is a vessel capable of
engaging in drilling operations for the exploration for or exploitation of resources
beneath the seabed such as liquid or gaseous hydrocarbons, sulphur or salt.
1.3.42
Mode of operation means a condition or manner in which a unit may operate or
function while on location or in transit. The modes of operation of a unit include the
following:
-
.1
Operating conditions – conditions
wherein a unit is on location for the purpose of conducting drilling
operations, and combined environmental and operational loadings are
within the appropriate design limits established for such operations.
The unit may be either afloat or supported on the seabed, as applicable.
-
.2
Severe storm conditions –
conditions wherein a unit may be subjected to the most severe environmental
loading for which the unit is designed. Drilling operations are assumed
to have been discontinued due to the severity of the environmental
loading. The unit may be either afloat or supported on the seabed,
as applicable.
-
.3
Transit conditions – conditions
wherein a unit is moving from one geographical location to another.
1.3.44
Normal operational and habitable conditions means:
-
.1 conditions under which the unit as a whole,
its machinery, services, means and aids ensuring safe navigation when
underway, safety when in the industrial mode, fire and flooding safety,
internal and external communications and signals, means of escape
and winches for rescue boats, as well as the means of ensuring the
minimum comfortable conditions of habitability, are in working order
and functioning normally; and
-
.2 drilling operations.
1.3.45
Oil fuel unit is the equipment used for the preparation of oil fuel for delivery
to an oil-fired boiler, or equipment used for the preparation for delivery of heated oil
to an internal combustion engine, and includes any oil pressure pumps, filters and
heaters dealing with oil at a pressure more than 0.18 N/mm2. Oil transfer
pumps are not considered oil fuel units.
1.3.46
Organization means the International Maritime Organization (IMO).
1.3.48
Self-elevating unit is a unit with movable legs capable of raising its hull above
the surface of the sea and lowering it back into the sea.
1.3.49
Semi-enclosed locations are locations where natural conditions of ventilation are
notably different from those on open decks due to the presence of structures such as
roofs, windbreaks and bulkheads and which are so arranged that dispersion of gas may not
occur.
1.3.50
Service spaces are those used for galleys, pantries containing cooking
appliances, lockers and store-rooms, workshops other than those forming part of the
machinery spaces, and similar spaces and trunks to such spaces.
1.3.51
SOLAS means the International Convention for the Safety of Life at Sea, 1974, as
amended.
1.3.54
Steering gear power unit means, in the case of:
-
.1 electric steering gear, an electric motor and
its associated electrical equipment;
-
.2 electrohydraulic steering gear, an electric
motor and its associated electrical equipment and connected pump;
-
.3 other hydraulic gear, a driving engine and
connected pump.
1.3.55
Surface unit is a unit with a ship- or barge-type displacement hull of single or
multiple hull construction intended for operation in the floating condition.
1.3.57
Visitors are personnel not regularly assigned to the unit.
1.3.58
Watertight means the capability of preventing the passage of water through the
structure in any direction under a head of water for which the surrounding structure is
designed.
1.3.59
Weathertight means that in any sea conditions water will not penetrate into the
unit.
1.3.60
Working spaces are those open or enclosed spaces containing equipment and
processes, associated with drilling operations, which are not included in hazardous
areas and machinery spaces.