For the purpose of parts C, D and E, unless expressly provided
otherwise:
1
Steering gear control system is
the equipment by which orders are transmitted from the navigating
bridge to the steering gear power units. Steering gear control systems
comprise transmitters, receivers, hydraulic control pumps and their
associated motors, motor controllers, piping and cables.
2
Main steering gear is the machinery,
rudder actuators, 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 ship under normal service conditions.
3
Steering gear power unit is:
-
.1 in the case of electric steering gear, an electric
motor and its associated electrical equipment;
-
.2 in the case of electrohydraulic steering gear,
an electric motor and its associated electrical equipment and connected
pump; or
-
.3 in the case of other hydraulic steering gear,
a driving engine and connected pump.
4
Auxiliary steering gear is the
equipment other than any part of the main steering gear necessary
to steer the ship in the event of failure of the main steering gear
but not including the tiller, quadrant or components serving the same
purpose.
5
Normal operational and habitable condition is
a condition under which the ship as a whole, the machinery, services,
means and aids ensuring propulsion, ability to steer, safe navigation,
fire and flooding safety, internal and external communications and
signals, means of escape, and emergency boat winches, as well as the
designed comfortable conditions of habitability are in working order
and functioning normally.
6
Emergency condition is a condition
under which any services needed for normal operational and habitable
conditions are not in working order due to failure of the main source
of electrical power.
7
Main source of electrical power is
a source intended to supply electrical power to the main switchboard
for distribution to all services necessary for maintaining the ship
in normal operational and habitable conditions.
8
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.
9
Main generating station is the
space in which the main source of electrical power is situated.
10
Main switchboard is a switchboard
which is directly supplied by the main source of electrical power
and is intended to distribute electrical energy to the ship's services.
11
Emergency switchboard is a switchboard
which in the event of failure of the main electrical power supply
system is directly supplied by the emergency source of electrical
power or the transitional source of emergency power and is intended
to distribute electrical energy to the emergency services.
12
Emergency source of electrical power is
a source of electrical power, intended to supply the emergency switchboard
in the event of a failure of the supply from the main source of electrical
power.
13
Power actuating system is the
hydraulic equipment provided for supplying power to turn the rudder
stock, comprising a steering gear power unit or units, together with
the associated pipes and fittings, and a rudder actuator. The power
actuating systems may share common mechanical components (i.e. tiller,
quadrant and rudder stock) or components serving the same purpose.
14
Maximum ahead service speed is
the greatest speed which the ship is designed to maintain in service
at sea at the deepest seagoing draught.
15
Maximum astern speed is the speed
which it is estimated the ship can attain at the designed maximum
astern power at the deepest seagoing draught.
16
Machinery spaces are all machinery
spaces of category A and all other spaces containing propelling machinery,
boilers, 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.
17
Machinery spaces of category A are
those spaces and trunks to such spaces which contain:
-
.1 internal combustion machinery used for main
propulsion;
-
.2 internal combustion machinery used for purposes
other than main propulsion where such machinery has in the aggregate
a total power output of not less than 375 kW; or
-
.3 any oil-fired boiler or oil fuel unit.
18
Control stations are those spaces
in which the ship's radio or main navigating equipment or the emergency
source of power is located or where the fire recording or fire control
equipment is centralized.
19
Chemical tanker is a cargo ship
constructed or adapted and used for the carriage in bulk of any liquid
product listed in either:
-
.1
chapter 17 of the
International Code for the Construction and Equipment of Ships Carrying
Dangerous Chemicals in Bulk adopted by the Maritime Safety Committee
by resolution MSC.4(48), hereinafter referred to as "the International
Bulk Chemical Code", as may be amended by the Organization; or
-
.2 chapter VI of the Code for the Construction
and Equipment of Ships Carrying Dangerous Chemicals in Bulk adopted
by the Assembly of the Organization by resolution A.212(VII), hereinafter
referred to as "the Bulk Chemical Code", as has been or may be amended
by the Organization,
whichever is applicable.
20
Gas carrier is a cargo ship constructed
or adapted and used for the carriage in bulk of any liquefied gas
or other products listed in either:
-
.1
chapter 19 of the International Code for the Construction and Equipment
of Ships Carrying Liquefied Gases in Bulk adopted by the Maritime Safety Committee
by resolution MSC.5(48), hereinafter referred to as "the International Gas Carrier
Code", as may be amended by the Organization; or
-
.2 chapter XIX of the Code for the Construction
and Equipment of Ships Carrying Liquefied Gases in Bulk adopted by
the Organization by resolution A.328(IX), hereinafter referred to
as "the Gas Carrier Code", as has been or may be amended by the Organization,
whichever is applicable.