-
RULES FOR BUILDING AND CLASSING
STEEL VESSELS2001
PART 5SPECIFIC VESSEL TYPES (CHAPTERS 7-10)
American Bureau of ShippingIncorporated by Act of Legislature
ofthe State of New York 1862
Copyright 2000American Bureau of ShippingABS Plaza16855
Northchase DriveHouston, TX 77060 USA
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2000 i
P A R T
5Specific Vessel Types
CONTENTSCHAPTER 7 Vessels Intended to Carry Passengers
............... 949
Section 1 Introduction
.................................................... 951
Section 2 Hull Structure
................................................. 957
Section 3 Subdivision and
Stability................................ 971
Section 4 Fire Safety
Measures..................................... 973
Section 5 Machinery Equipment and Systems.............. 975
CHAPTER 8 Vessels Intended to Carry Liquefied Gasesin
Bulk....................................................................
991
Section 1 General (ABS)
............................................. 997
Section 2 Ship Survival Capability and Location ofCargo Tanks
................................................ 1017
Section 3 Ship Arrangements
...................................... 1029
Section 4 Cargo
Containment...................................... 1045
Section 5 Process Pressure Vessels and Liquid,Vapor and Pressure
Piping Systems........... 1085
Section 6 Materials of Construction.............................
1097
Section 7 Cargo Pressure/Temperature Control ......... 1115
Section 8 Cargo Tank Vent Systems...........................
1121
Section 9 Environmental Control
................................. 1131
Section 10 Electrical Installations
.................................. 1137
Section 11 Fire Protection and Fire Extinction ..............
1143
Section 12 Mechanical Ventilation in the Cargo Area ... 1151
Section 13 Instrumentation (Gauging, Gas Detectionand Cargo
Handling Controls) ..................... 1159
Section 14 Personnel Protection
................................... 1169
Section 15 Filling Limits for Cargo Tanks ......................
1175
Section 16 Use of Cargo as
Fuel................................... 1179
Section 17 Special
Requirements.................................. 1191
Section 18 Operating Requirements .............................
1207
Section 19 Summary of Minimum Requirements .......... 1213
Annex 1 Guidelines for the Uniform Application of theSurvival
Requirements of the Bulk ChemicalCode and the Gas Carrier
Code.................. 1217
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ii ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
Annex 2 United States Coast Guard AdditionalDesign and
Structural Requirements forNon-US Flag Vessels Operating on
theNavigable Waters of the United States........ 1225
CHAPTER 9 Vessels Intended to Carry ChemicalCargoes in Bulk
...................................................1229
Section 1 General (ABS)
........................................... 1235
Section 2 Ship Survival Capability and Location ofCargo Tanks
................................................ 1253
Section 3 Ship Arrangements
...................................... 1265
Section 4 Cargo
Containment...................................... 1277
Section 5 Cargo
Transfer............................................. 1283
Section 6 Materials of Construction
............................. 1293
Section 7 Cargo Temperature Control.........................
1297
Section 8 Cargo Tank Venting and Gas-FreeingArrangements
.............................................. 1301
Section 9 Environmental Control
................................. 1309
Section 10 Electrical Installations
.................................. 1315
Section 11 Fire Protection and Fire Extinction ..............
1321
Section 12 Mechanical Ventilation in the Cargo Area ... 1329
Section 13 Instrumentation
............................................ 1335
Section 14 Personnel Protection
................................... 1341
Section 15 Special
Requirements.................................. 1347
Section 16 Operational Requirements...........................
1373
Section 16A Additional Measures for the Protection ofthe Marine
Environment ............................. 1381
Section 17 Summary of Minimum Requirements .......... 1383
Section 18 List of Chemicals to Which the Code DoesNot Apply
..................................................... 1413
Section 19 Requirements for Ships Engaged in theIncineration at
Sea of Liquid
ChemicalWaste...........................................................
1421
Section 20 Transport of Liquid Chemical Wastes..........
1431
Annex 1 Guidelines for the Uniform Application of theSurvival
Requirements of the Bulk ChemicalCode and the Gas Carrier
Code.................. 1437
Annex 2 Calculation of the Capacity of FoamSystems for Chemical
Tankers.................... 1445
Annex 3 Resolution A.473(XII)...................................
1447
Annex 4 Resolution A.567(14) ...................................
1453
CHAPTER 10 Vessels Intended to Carry Vehicles
..................1459
Section 1 Introduction
.................................................. 1461
Section 2 Vehicle Carrier
............................................. 1465
Section 3 Vehical Passenger Ferry .............................
1477
Section 4 Cargo
Safety................................................ 1481
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 949
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
CONTENTSSECTION 1
Introduction...........................................................
951
1
General.................................................................
953
3
Definitions.............................................................
955
SECTION 2 Hull Structure
........................................................ 957
1 Longitudinal Strength
........................................... 959
3 Rudders and Steering Gear .................................
960
5 Bottom Structure
.................................................. 960
7 Side
Construction.................................................
960
9 Watertight Bulkheads and Openings inWatertight Bulkheads
........................................... 963
11 Decks, Superstructures and Deck Houses .......... 968
SECTION 3 Subdivision and
Stability...................................... 971
1
General.................................................................
971
3 Inclining Experiment and Trim and StabilityBooklet
.................................................................
971
5 Damage Control Plans .........................................
971
SECTION 4 Fire Safety Measures
............................................ 973
1 Structural Fire Protection
..................................... 973
3 Fire Control
Plans................................................. 973
SECTION 5 Machinery Equipment and Systems ....................
975
1 Emergency Source of Power ...............................
977
3 Electrical Cables in Accommodation Areas ......... 981
5 Fire Pumps, Fire Mains, Hydrants, Hoses
andNozzles.................................................................
981
7 Bilge and Ballast Systems....................................
983
9 Fixed Fire Detection and Fire Alarm Systems,Automatic
Sprinkler, Fire Detection and FireAlarm Systems
..................................................... 985
11 Cargo
Spaces.......................................................
986
13 Special Arrangements in Machinery Spaces ....... 986
15 Firemans Outfits
.................................................. 987
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950 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
17 Manual Alarm System
.......................................... 988
19 General and Special Fire Alarms .........................
988
21 General Emergency Alarm System...................... 988
23 Public Address System
........................................ 988
25 Portable Communication Equipment.................... 988
27 Dangerous Goods
................................................ 988
29 Protection Against Noise in MachinerySpaces
.................................................................
988
31 Vibration Prediction Calculations .........................
989
33 Helicopter Landing and Pick-up Areas................. 989
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 951
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 1 Introduction
CONTENTS1
General.................................................................................
953
1.1 Classification
........................................................................
953
1.3 Application
............................................................................
953
1.5 Scope
...................................................................................
954
1.7 Passenger Ship Safety
Certificate........................................ 954
1.9 Independent
Review.............................................................
954
1.11 Administration Approval
....................................................... 954
3
Definitions............................................................................
955
3.1
General.................................................................................
955
3.3 Accommodation
Spaces.......................................................
955
3.5
Administration.......................................................................
955
3.7 Deepest Subdivision Load
Line............................................ 955
3.9 Machinery
Spaces................................................................
955
3.11 Machinery Spaces of Category
A......................................... 955
3.13 Margin
Line...........................................................................
955
3.15 Passenger
............................................................................
955
3.17 Passenger Spaces
...............................................................
955
3.19 Public
Spaces.......................................................................
956
3.21
Regulations...........................................................................
956
3.23 Service
Spaces.....................................................................
956
3.25 Short International
Voyage................................................... 956
3.27 Special Category Spaces
..................................................... 956
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 953
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 1 Introduction 5 - 7 - 1
1 General 5-7-1/1
1.1 Classification 5-7-1/1.1
In accordance with 1-1-3/3, the classification of A1 Passenger
Vessel is to be assigned tovessels designed and specifically fitted
for the carriage of passengers and built to the requirements ofthis
Chapter and other relevant sections of the Rules.
In addition to the above, the vessel must have a Passenger Ship
Safety Certificate from theAdministration of registry or its agent
evidencing the vessels compliance with the requirements ofthe
International Convention for the Safety of Life at Sea 1974, as
amended, and an InternationalLoad Line Certificate evidencing
compliance with the International Loadline Convention 1966.
1.3 Application 5-7-1/1.3
These requirements are intended to apply to a vessel carrying
more than twelve (12) passengers on aninternational voyage or a
short international voyage.
In the case of passenger vessels which are employed in special
trades for the carriage of largenumbers of special trade
passengers, such as the pilgrim trade, the requirements will be
given specialconsideration, taking into account the following
1.3.1
the rules annexed to the International Conference on Special
Trade Passenger Ships, 1971and;
1.3.2
the rules annexed to the International Conference on Space
Requirements for Special TradePassenger Ships, 1973.
Notwithstanding 1-1-4/1, the Rules in this Chapter are
applicable to vessels of 61m (200 ft)and over in length intended
for unrestricted ocean service. Passenger vessels of lesser
sizewill be given special consideration.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
PassengersSection 1 Introduction 5-7-1
954 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
1.5 Scope 5-7-1/1.5
This Chapter is intended to cover the additional hull
construction, machinery and safety equipmentrequired to class a
vessel as a passenger vessel.
These requirements are applicable to those features that are
permanent in nature and can be verifiedby plan review, calculation,
physical survey or any other means.
These Rules do not address the requirements for operational
instructions, Life Saving Appliances andArrangements (Chapter III),
Radiotelegraphy and Radiotelephony (Chapter IV), Safety of
Navigation(Chapter V), Carriage of Grain (Chapter VI), and Carriage
of Dangerous Goods (Chapter VII) whichmay be found in the
International Convention for the Safety of Life at Sea, 1974, as
amended.
1.7 Passenger Ship Safety Certificate 5-7-1/1.7
Where authorized by the Administration of a country signatory to
the International Convention for theSafety of Life at Sea, 1974, as
amended, and upon request of the Owners of a classed vessel or
oneintended to be classed, the Bureau will review the plans, data,
etc., and survey the vessel forcompliance with the provisions of
1974 SOLAS Convention, as amended, and issue a Passenger ShipSafety
Certificate prescribed in the Convention on behalf of the
Administration.
1.9 Independent Review 5-7-1/1.9
When the Passenger Ship Safety Certificate is issued by an
Administration or its agent other than theBureau, the Bureau when
requested by the owner, shipyard, or designers, will conduct an
independentreview of any of the following:
Subdivisions and StabilityTrim and Stability BookletInclining
ExperimentStructural Fire ProtectionFire Control Plan Damage
Control PlanLife-Saving Appliances and ArrangementsSafety for
NavigationCarriage of GrainCarriage of Dangerous Goods
Fees for such independent reviews will be charged to the owner
when the review is requested.
1.11 Administration Approval 5-7-1/1.11
In general, the approval of material, safety equipment,
lifesaving appliances, etc. is a function of theAdministration.
When the vessel is issued a Passenger Ship Safety Certificate by
the Administrationor its agent other than the Bureau, such
certificate will be accepted as evidence that theAdministration has
approved the material, safety equipment, life-saving appliances,
etc.
On the other passenger vessels the designer or builder will
submit evidence that the Administrationhas approved the material,
safety equipment, lifesaving, etc. for the Bureau acceptance on
vesselsbuilding to class.
When given specific instructions from the Administration, the
Bureau may approve and accept thematerial, equipment, life-saving
appliances, etc., fitted on the vessel.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
PassengersSection 1 Introduction 5-7-1
ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 955
3 Definitions 5-7-1/3
3.1 General 5-7-1/3.1
For definitions of terms used in this section and not shown
below, reference is to be made to thedefinitions in the various
Chapters in the International Convention for the Safety of Life at
Sea, 1974,as amended. (Abbreviated: 1974 SOLAS Convention, as
amended).
3.3 Accommodation Spaces 5-7-1/3.3
Accommodation Spaces are those spaces used for public spaces,
corridors, lavatories, cabins, offices,hospitals, cinemas, games
and hobbies rooms, barber shops, pantries containing no
cookingappliances and similar spaces.
3.5 Administration 5-7-1/3.5
Administration means the Government of the State whose flag the
vessel is entitled to fly.
3.7 Deepest Subdivision Load Line 5-7-1/3.7
Deepest Subdivision Load Line is the waterline which corresponds
to the greatest draft permitted bythe subdivision requirements
which are applicable.
3.9 Machinery Spaces 5-7-1/3.9
Machinery Spaces are all machinery spaces of category A and all
other spaces containing propulsionmachinery, boilers, oil fuel
units, steam and internal combustion engines, generators and
majorelectrical machinery, oil filling stations, refrigerating,
stabilizing, ventilation and air-conditioningmachinery, and similar
spaces, and trunks to such spaces.
3.11 Machinery Spaces of Category A 5-7-1/3.11
Machinery Spaces of Category A are those spaces and trunks to
such spaces which contain internalcombustion machinery used for
main propulsion, or internal combustion machinery used for
purposesother than main propulsion where such machinery has in the
aggregate a total power output of not lessthan 375 KW (500 hp), or
any oil-fired boiler or oil fuel unit.
3.13 Margin Line 5-7-1/3.13
Margin Line is a line drawn at least 76 mm (3 in.) below the
upper surface of the bulkhead deck atside.
3.15 Passenger 5-7-1/3.15
A Passenger is every person other than the master and the
members of the crew or other personsemployed or engaged in any
capacity on board a vessel on the business of that vessel and
childrenunder one year of age.
3.17 Passenger Spaces 5-7-1/3.17
Passenger Spaces are those spaces which are provided for the
accommodation and the use ofpassengers, excluding baggage, store,
provision and mail rooms. For the purposes of RegulationsII-1/5 and
II-1/6, spaces provided below the margin line for the accommodation
and the use of thecrew shall be regarded as passenger spaces.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
PassengersSection 1 Introduction 5-7-1
956 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
3.19 Public Spaces 5-7-1/3.19
Public Spaces are those portions of the accommodation which are
used for halls, dining rooms,lounges and similar permanently
enclosed spaces.
3.21 Regulations 5-7-1/3.21
Regulations means the regulations contained in the International
Convention for the Safety of Life atSea, 1974, as amended. The
abbreviated notation form is used; e.g. Regulation II-2/55.5
meansRegulation 55.5 of Chapter II-2.
3.23 Service Spaces 5-7-1/3.23
Service Spaces are those spaces used for galleys, pantries
containing cooking appliances, lockers, mailand specie rooms,
store-rooms, workshops other than those forming part of the
machinery spaces, andsimilar spaces and trunks to such spaces.
3.25 Short International Voyage 5-7-1/3.25
Short International Voyage is an international voyage in the
course of which the vessel is not morethan 200 miles from a port or
place in which the passengers and crew could be disembarked in
safety.Neither the distance between the last port of call in the
country in which the voyage begins and thefinal port of destination
nor the return voyage shall exceed 600 miles. The final port of
destination isthe last port of call in the scheduled voyage at
which the vessel commences its return voyage to thecountry in which
the voyage began.
3.27 Special Category Spaces 5-7-1/3.27
Special Category Spaces are those enclosed spaces above or below
the bulkhead deck intended for thecarriage of motor vehicles with
fuel in their tanks for their own propulsion, into and from which
suchvehicles can be driven and to which passengers have access.
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 957
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 2 Hull Structure
CONTENTS1 Longitudinal Strength
......................................................... 959
1.1
General.................................................................................
959
1.3 Bending Moment and Shear Force
Calculations.................. 959
3 Rudders and Steering Gear
................................................ 960
5 Bottom
Structure.................................................................
960
5.1
General.................................................................................
960
5.3 Double
Bottom......................................................................
960
5.5 Inner Bottom
Plating.............................................................
960
5.7 Drain Wells
...........................................................................
960
7 Side
Construction................................................................
960
7.1
General.................................................................................
960
7.3
Portlights...............................................................................
961
7.5 Shell Connections Located Below the Margin
Line.............. 961
7.7 Gangway and Cargo Ports Located Below theMargin
Line...........................................................................
962
7.9 Weathertight and Watertight Integrity Above theMargin
Line...........................................................................
962
9 Watertight Bulkheads and Openings in WatertightBulkheads
............................................................................
963
9.1 Watertight Bulkheads
........................................................... 963
9.3 Collision
Bulkhead................................................................
963
9.5 Afterpeak and Machinery Space Bulkheads
........................ 963
9.7 Stern Tubes
..........................................................................
963
9.9 Openings and
Penetrations..................................................
963
9.11 Doors, Manholes and Access Openings
.............................. 964
9.13 Shaft Tunnel Door and Doors within PropulsionMachinery
Spaces................................................................
964
9.15 Watertight Doors in Watertight Bulkheads
........................... 964
9.17 Power-operated Sliding Watertight
Doors............................ 965
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958 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
9.19 Central Operating
Console................................................... 967
9.21 Watertight Doors in Cargo
Spaces....................................... 968
9.23 Portable Plates
.....................................................................
968
9.25
Miscellaneous.......................................................................
968
11 Decks, Superstructures and Deck Houses
........................968
11.1
General.................................................................................
968
11.3 Watertight Decks, Trunks, Tunnels, Duct Keels
andVentilators.............................................................................
969
11.5 Support
Structures................................................................
969
11.7 Effective Lower Deck Thickness
.......................................... 969
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 959
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 2 Hull Structure 5 - 7 - 2
1 Longitudinal Strength 5-7-2/1
1.1 General 5-7-2/1.1
The longitudinal strength of the passenger vessel is to be in
accordance with Section 3-2-1, in additionto the following.
1.3 Bending Moment and Shear Force Calculations 5-7-2/1.3.1
1.3.1 Still Water Bending Moment and Shear Force 5-7-2/1.3.2
Still water bending moment and shear force calculations are to
be submitted for passengervessel over 122 m (400 ft) in length.
These calculations are to be carried out for all anticipatedloaded
and ballast conditions. The distribution of lightship weight is
also to be shown.
1.3.2 Wave Induced Bending Moments and Shear Forces
5-7-2/1.3.3
Where the block coefficient is less than 0.60 or where the
vessel has considerable bow flare,the wave induced bending moments
and shear forces may be calculated using a blockcoefficient of 0.60
in accordance with 3-2-1/3.5.
1.3.3 Total Bending Moment 5-7-2/1.3.4
Where the calculations indicate that the vessel is under hogging
condition, in all still waterloading conditions, the total bending
moments, Mt, is to be taken as not less than 0.9MWS inthe
calculations of the buckling strength of the structural members
above the neutral axis.Special consideration may be given to the
minimum Mt under the conditions given in3-2-1/19.
1.3.4 Buckling Strength 5-7-2/1.3.5
Shell, strength deck and other effective decks together with
their stiffening members are tohave sufficient strength to
withstand the compressive and shear loads due to the maximumbending
moment. Non-effective decks which are subject to compression due to
hull girderbending are to have stiffening members of sufficient
strength to withstand the compressionunder the above bending
moment.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
PassengersSection 2 Hull Structures 5-7-2
960 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
3 Rudders and Steering Gear 5-7-2/3
Rudders and steering gears are to be in accordance with Section
3-2-14 and in addition the steeringgear is to be designed
(4-3-4/1.9 and 4-3-4/23) and trial tested (4-3-4/21.7) with one of
the powerunits out of operation.
5 Bottom Structure 5-7-2/5
5.1 General 5-7-2/5.1
The bottom structure is to be in accordance with Section 3-2-4
in addition to the following.
5.3 Double Bottom 5-7-2/5.3
A double bottom is to be fitted, in accordance with Section
3-2-4, except in way of deep tanks,extending from the forepeak
bulkhead to the afterpeak bulkhead, or as near thereto as
practicable. Forvessels between 61 meters (200 feet) and 76 meters
(250 feet) in length, a double bottom may beomitted in the
machinery space. A double bottom need not be fitted in way of deep
tanks of moderatevolume provided the safety of the vessel is not
thereby impaired in the event of bottom or sidedamage.
5.5 Inner Bottom Plating 5-7-2/5.5
Where a double bottom as required by 5-7-2/5.3 is fitted, its
depth is to be compatible with therequirements of 3-2-4/3 and the
inner bottom is to be continued out to the vessels sides in such
amanner as to protect the bottom to the turn of bilge. Such
protection will be deemed satisfactory if theline of intersection
of the outer edge of the margin plate with the bilge plating is not
lower at anypoint than a horizontal plane passing through the point
of intersection with the frame line amidshipsof a transverse
diagonal line inclined at 25 to the base line and cutting it at a
point one-half thevessels molded breadth from the center line. (See
5-7-2/Figure 1.)
5.7 Drain Wells 5-7-2/5.7
Drain wells constructed in the double bottom in conjunction with
drainage arrangements of holds,etc., are not to extend downward
more than necessary. The depth of the wells are not to exceed
thedepth of the double bottom at the centerline less 460 mm (18
in.), and the well is not to extend belowthe horizontal plane
referred to in 5-7-2/5.5. A drain well extending below the
horizontal plane is,however, permitted at the after end of the
shaft tunnel. Other well arrangements (e.g. for lubricatingoil
under main engines) will be considered provided they give
protection equivalent to that affordedby the double bottom.
7 Side Construction 5-7-2/7
7.1 General 5-7-2/7.1
The side shell plating and framing are to be in accordance with
Sections 3-2-5, 3-2-6, 3-2-2, and3-2-11 except in addition to the
following. Side framing below the strength deck is to be
inaccordance with Sections 3-2-5 and 3-2-6 of the Rules. Ordinary
transverse frames in way oflongitudinally framed decks may be in
accordance with 3-2-5/3.17 using as defined in 3-2-5/5.3and h
measured from the middle of to the point indicated in
3-2-5/3.17.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
PassengersSection 2 Hull Structures 5-7-2
ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 961
FIGURE 1
B/2
Midship frame line
Well
25
No Part of inner bottom to extend below this line
7.3 Portlights (1 July 1998) 5-7-2/7.3
The location and construction of portlights and deadlights is to
comply with 3-2-17/7.
7.5 Shell Connections Located Below the Margin Line
5-7-2/7.5
7.5.1 5-7-2/7.5.1
All inlets and discharges in the shell plating are to be fitted
with efficient and accessiblearrangements for preventing the
accidental ingress of water into the vessel.
7.5.2 5-7-2/7.5.2
Subject to the requirements of the International Convention on
Load Lines, and except asprovided in 5-7-2/7.5.3, each separate
discharge led through the shell plating from spacesbelow the margin
line is to be provided with either one automatic nonreturn valve
fitted with apositive means of closing it from above the bulkhead
deck or with two automatic nonreturnvalves without positive means
of closing, provided that the inboard valve is situated above
thedeepest subdivision load line and is always accessible, for
examination under serviceconditions. Where a valve with positive
means of closing is fitted, the operating positionabove the
bulkhead deck is always to be readily accessible, and means are to
be provided forindicating whether the valve is open or closed.
7.5.3 (1998) 5-7-2/7.5.3
Machinery space main and auxiliary sea inlets and discharges
used in connection with theoperation of machinery are to be fitted
with readily accessible valves between the pipes andthe shell
plating or between the pipes and fabricated boxes attached to the
shell plating. Inorder to be considered readily accessible, the
valves, during normal operating conditions, areto be:
7.5.3(a) located in a space normally entered without using
tools,
7.5.3(b) clear of or protected from obstructions, moving
equipment and hot surfaces thatprevent operation or servicing,
and
7.5.3(c) within operators reach, or a remote control device
normally employed for operatingthe valve is to be within operators
reach.
The valves may be controlled locally and are to be provided with
indicators showing whetherthey are open or closed.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
PassengersSection 2 Hull Structures 5-7-2
962 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
7.7 Gangway and Cargo Ports Located Below the Margin Line
5-7-2/7.7
7.7.1 5-7-2/7.7.1
Gangway and cargo ports fitted below the margin line are to be
of sufficient strength. Theyare to be capable of being effectively
closed and secured watertight. The scantlings of theports are to be
equivalent to the scantlings required by the Rules for the hull
structure in thatlocation. Ports should normally open outboard.
Ports which open inboard are to have portablestrong-backs or props
in addition to the regular dogs. Also see 3-2-16/1.
7.7.2 5-7-2/7.7.2
Such ports are to be so fitted as to have their lowest point
above the deepest subdivision loadline.
7.9 Weathertight and Watertight Integrity Above the Margin Line
5-7-2/7.9
7.9.1 5-7-2/7.9.1
All reasonable and practicable measures are to be taken to limit
the entry and spread of waterabove the bulkhead deck. Such measures
may include partial bulkheads or webs. When partialwatertight
bulkheads and webs are fitted on the bulkhead deck above or in the
immediatevicinity of main subdivision bulkheads, they are to have
watertight shell and bulkhead deckconnections so as to restrict the
flow of water along the deck when the vessel is in a heeleddamaged
condition. Where the partial watertight bulkhead does not line up
with the bulkheadbelow, the bulkhead deck between is to be made
effectively watertight.
7.9.2 5-7-2/7.9.2
The bulkhead deck or a deck above it is to be weathertight. All
openings in the exposedweather deck are to have coamings of ample
height and strength and be provided withefficient means for
expeditiously closing them weathertight. Freeing ports, open rails
andscuppers are to be fitted as necessary for rapidly clearing the
weather deck of water under allweather conditions.
7.9.3 (1998) 5-7-2/7.9.3
The open end of air pipes terminating within a superstructure is
to be at least 1 m (3.3 ft)above the waterline when the ship heels
to an angle of 15, or the maximum angle of heelduring intermediate
stages of flooding, as determined by direct calculation, whichever
is thegreater. Alternatively, air pipes from tanks other than oil
tanks may discharge through the sideof the superstructure.
7.9.4 5-7-2/7.9.4
Portlights, gangway, cargo ports and other means for closing
openings in the shell plating areto be of efficient design and
construction and of sufficient strength having regard to thespaces
in which they are fitted and their positions relative to the
deepest subdivision load line.
7.9.5 5-7-2/7.9.5
Efficient inside deadlights are to be provided for all
sidescuttles to spaces below the first deckabove the bulkhead deck
and so arranged that they can be easily and effectively closed
andsecured watertight.
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 963
9 Watertight Bulkheads and Openings in WatertightBulkheads
5-7-2/9
9.1 Watertight Bulkheads 5-7-2/9.1
Watertight bulkheads are to be in accordance with Section 3-2-9
or Section 3-2-10 in addition to thefollowing. Also see Section
5-7-3.
9.3 Collision Bulkhead 5-7-2/9.3
9.3.1 General 5-7-2/9.3.1
The requirements in 3-2-9/3.1.1 and 3-2-9/Figure 2 apply to
passenger vessels except thatreference to freeboard deck is to be
substituted by bulkhead deck.
9.3.2 Location 5-7-2/9.3.2
The collision bulkhead is to be located at any point not less
than 0.05L nor more than 0.05Lplus 3 m (9.84 ft) abaft the
reference point as defined in 3-2-9/3.1.4, where L is the length
ofthe vessel between perpendiculars at the deepest subdivision load
line.
9.5 Afterpeak and Machinery Space Bulkheads 5-7-2/9.5
An afterpeak bulkhead, and bulkheads separating the machinery
space, as defined below, from thecargo and passenger spaces forward
and aft, are to be fitted and made watertight up to the
bulkheaddeck. The afterpeak bulkhead may, however, be stepped below
the bulkhead deck, provided thedegree of safety of the vessel as
regards subdivision is not thereby diminished.
Machinery Space is to be taken as extending from the molded base
line to the margin line andbetween the extreme main transverse
watertight bulkheads, bounding the spaces containing the mainand
auxiliary propulsion machinery, and boilers serving the needs of
propulsion. The limits of themachinery spaces will in the case of
unusual arrangements be subject to special consideration.
9.7 Stern Tubes 5-7-2/9.7
The stern gland is to be situated in a watertight shaft tunnel
or other watertight space(s) separate fromthe stern tube
compartment and be of such volume that, if flooded by leakage
through the stern gland,the margin line will not be submerged.
9.9 Openings and Penetrations (1998) 5-7-2/9.9
9.9.1 5-7-2/9.9.1
The number of openings in watertight bulkheads is to be reduced
to the minimum compatiblewith the design and proper working of the
vessel; satisfactory means are to be provided forclosing these
openings.
9.9.2 5-7-2/9.9.2
Penetrations through watertight subdivision bulkheads for fixed
services such as pipes,scuppers or electrical cables are to be
prototype tested for a period of at least 30 minutesunder
hydrostatic pressure corresponding to the actual installation.
There is to be no leakagethrough the prototype for the duration of
the test. Penetrations which can be seal welded donot require
prototype testing.
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964 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
9.9.3 5-7-2/9.9.3
Valves not forming part of a piping system are not permitted in
watertight subdivisionbulkheads.
9.9.4 5-7-2/9.9.4
Lead or other heat sensitive materials are not to be used in
systems which penetrate watertightsubdivision bulkheads, where
deterioration of such material would in the event of a fire,impair
the watertight integrity of the bulkheads.
9.9.5 5-7-2/9.9.5
Except as provided in 5-7-2/9.9.6, the collision bulkhead may be
pierced below the marginline by not more than one pipe for dealing
with fluid in the forepeak tank, provided that thepipe is fitted
with a screwdown valve capable of being operated from above the
bulkheaddeck; the valve chest being secured to the collision
bulkhead inside the forepeak.
9.9.6 5-7-2/9.9.6
If the forepeak is divided to hold two kinds of liquids, the
collision bulkhead may be piercedbelow the margin line by two
pipes, each of which is fitted as required by 5-7-2/9.9.5,provided
there is no practical alternative to the fitting of such a second
pipe and that, havingregard to the additional subdivision provided
in the forepeak, the safety of the vessel ismaintained.
9.11 Doors, Manholes and Access Openings 5-7-2/9.11
Doors, manholes, or access openings are not permitted:
i) in the collision bulkhead below the margin line;
ii) in watertight transverse bulkheads dividing a cargo space
from an adjoining cargo space orfrom a permanent or reserve bunker,
except as provided in 5-7-2/9.21.
9.13 Shaft Tunnel Door and Doors within Propulsion Machinery
Spaces 5-7-2/9.13
Within spaces containing the main and auxiliary propulsion
machinery including boilers serving theneeds of propulsion, not
more than one watertight door, apart from the watertight doors to
shafttunnels, is to be fitted in each main transverse bulkhead.
Where two or more shafts are fitted, thetunnels are to be
interconnected by a passage. There is to be only one watertight
door between themachinery space and the tunnel spaces where two
shafts are fitted, and only two watertight doorswhere there are
more than two shafts. All these watertight doors are to be of the
sliding type and shallbe so located as to have their sills as high
as practicable. The hand gear for operating these doors fromabove
the bulkhead deck is to be situated outside the spaces containing
the machinery.
9.15 Watertight Doors in Watertight Bulkheads 5-7-2/9.15
9.15.1 5-7-2/9.15.1
Watertight doors, except as provided in 5-7-2/9.21 are to be
power-operated sliding doorscomplying with the requirements of
5-7-2/9.17 capable of being closed simultaneously fromthe central
operating console at the navigating bridge in not more than 60
seconds with thevessel in the upright position.
9.15.2 5-7-2/9.15.2
The means of operation whether by power or by hand of any
power-operated slidingwatertight door is to be capable of closing
the door with the vessel listed to 15 either way.Consideration is
also to be given to the forces which may act on either side of the
door as maybe experienced when water is flowing through the opening
applying a static head equivalentto a water height of at least 1 m
(3.28 ft) above the sill on the centerline of the door.
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 965
9.15.3 5-7-2/9.15.3
Watertight door controls, including hydraulic piping and
electric cables, are to be kept asclose as practicable to the
bulkhead in which the doors are fitted, in order to minimize
thelikelihood of them being involved in any damage which the vessel
may sustain. Thepositioning of watertight doors and their controls
are to be such that if the vessel sustainsdamage within one fifth
of the breadth of the vessel, as defined in Section 3-1-1, such
distancebeing measured at right angles to the centerline at the
level of the deepest subdivision loadline, the operation of the
watertight doors clear of the damaged portion of the vessel is
notimpaired.
9.15.4 5-7-2/9.15.4
All power-operated sliding watertight doors are to be provided
with means of indicationwhich will show at all remote operating
positions whether the doors are open or closed.Remote operating
positions are to be at the navigating bridge as required by
5-7-2/9.17.1(e)and, at the location where hand operation above the
bulkhead deck is required by5-7-2/9.17.1(d).
9.17 Power-operated Sliding Watertight Doors (1994)
5-7-2/9.17
9.17.1 5-7-2/9.17.1
Each power-operated sliding watertight door is to comply with
the following:
9.17.1(a) have either a vertical or a horizontal motion;
9.17.1(b) subject to 5-7-2/9.23 normally being limited to a
maximum clear opening width of1.2m (3.94 ft). Larger doors may be
considered to the extent necessary for the effectiveoperation of
the vessel provided that other safety measures, including the
following, are takeninto consideration:
i) special consideration is to be given to the strength of the
door and its closingappliances in order to prevent leakages;
ii) the door is to be located inboard of the transverse extent
of damage (B/5) as definedin Regulation II-1/8.4.2;
iii) the door is to be kept closed when the vessel is at sea,
except the door may be openedfor limited periods when absolutely
necessary.
9.17.1(c) be fitted with the necessary equipment to open and
close the door using electricpower, hydraulic power, or any other
acceptable form of power;
9.17.1(d) be provided with an individual hand-operated
mechanism. It is to be possible toopen and close the door by hand
from either side of the door, and in addition, close the doorfrom
an accessible position above the bulkhead deck with an all round
crank motion or someother movement providing the same acceptable
degree of safety. Direction of rotation or othermovement is to be
clearly indicated at all operating positions. The time necessary
for thecomplete closure of the door, when operating by hand gear,
is not to exceed 90 seconds withthe vessel in the upright
position;
9.17.1(e) be provided with controls for opening and closing the
door by power from bothsides of the door and also for closing the
door by power from the central operating console atthe navigating
bridge;
9.17.1(f) be provided with an audible alarm, distinct from any
other alarm in the area, whichwill sound whenever the door is
closed remotely by power and which is to sound for at leastfive
seconds but no more than ten seconds before the door begins to move
and is to continuesounding until the door is completely closed. In
the case of remote hand operation it issufficient for the audible
alarm to sound only when the door is moving. Additionally, in
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966 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
passenger areas and areas of high ambient noise, the audible
alarm is to be supplemented byan intermittent visual signal at the
door; and
9.17.1(g) have an approximately uniform rate of closure under
power. The closure time, fromthe time the door begins to move to
the time it reaches the completely closed position, is to benot
less than 20 seconds or more than 40 seconds with the vessel in the
upright position.
9.17.2 5-7-2/9.17.2
The electrical power required for power-operated sliding
watertight doors is to be suppliedfrom the emergency switchboard
either directly or by a dedicated distribution board situatedabove
the bulkhead deck. The associated control, indication and alarm
circuits are to besupplied from the emergency switchboard either
directly or by a dedicated distribution boardsituated above the
bulkhead deck and be capable of being automatically supplied by
thetransitional source of emergency electrical power required by
5-7-5/1.5.1(c) in the event offailure of either the main or
emergency source of electrical power.
9.17.3 5-7-2/9.17.3
Power-operated sliding watertight doors are to have one of the
following systems,
9.17.3(a) a centralized hydraulic system with two independent
power sources each consistingof a motor and pump capable of
simultaneously closing all doors. In addition, there are to befor
the whole installation hydraulic accumulators of sufficient
capacity to operate all the doorsat least three times, i.e.
closed-open-closed, against an adverse list of 15. This
operatingcycle is to be capable of being carried out when the
accumulator is at the pump cut-inpressure. The fluid used is to be
chosen considering the temperatures liable to be encounteredby the
installation during its service. The power operating system is to
be designed tominimize the possibility of having a single failure
in the hydraulic piping adversely affect theoperation of more than
one door. The hydraulic system is to be provided with a
low-levelalarm for hydraulic fluid reservoirs serving the
power-operated system and a low gas pressurealarm or other
effective means of monitoring loss of stored energy in hydraulic
accumulators.These alarms are to be audible and visual and are to
be situated on the central operatingconsole at the navigating
bridge.
9.17.3(b) an independent hydraulic system for each door with
each power source consistingof a motor and pump capable of opening
and closing the door. In addition, there is to be ahydraulic
accumulator of sufficient capacity to operate the door at least
three times, i.e.closed-open-closed, against an adverse list of 15.
This operating cycle is to be capable ofbeing carried out when the
accumulator is at the pump cut-in pressure. The fluid used is to
bechosen considering the temperatures liable to be encountered by
the installation during itsservice. A low gas pressure group alarm
or other effective means of monitoring loss of storedenergy in
hydraulic accumulators is to be provided at the central operating
console on thenavigating bridge. Loss of stored energy indication
at each local operating position is to beprovided.
9.17.3(c) an independent electrical system and motor for each
door with each power sourceconsisting of a motor capable of opening
and closing the door. The power source is to becapable of being
automatically supplied by the transitional source of emergency
electricalpower as required by 5-7-5/1.7.2 in the event of failure
of either the main or emergencysource of electrical power and with
sufficient capacity to operate the door at least three times,i.e.
closed-open-closed against an adverse list of 15.
For the systems specified in 5-7-2/9.17.3(a), 5-7-2/9.17.3(b)
and 5-7-2/9.17.3(c) the powersystems for power-operated watertight
sliding doors are to be separate from any other powersystem. A
single failure in the electric or hydraulic power-operated system
excluding thehydraulic actuator is not to prevent the hand
operation of any door.
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Part 5 Specific Vessel TypesChapter 7 Vessels Intended to Carry
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 967
9.17.4 5-7-2/9.17.4
Control handles are to be provided at each side of the bulkhead
at a minimum height of 1.6 m(5.25 ft) above the deck and are to be
so arranged as to enable persons passing through thedoorway to hold
both handles in the open position without being able to set the
power closingmechanism in operation accidentally. The direction of
movement of the handles in openingand closing the door is to be in
the direction of door movement and is to be clearly indicated.
9.17.5 5-7-2/9.17.5
As far as practicable, electrical equipment and components for
watertight doors are to besituated above the bulkhead deck and
outside hazardous areas and spaces.
9.17.6 5-7-2/9.17.6
The enclosures of electrical components necessarily situated
below the bulkhead deck are toprovide suitable protection against
the ingress of water.
9.17.7 5-7-2/9.17.7
Electric power, control, indication and alarm circuits are to be
protected against fault in such away that a failure in one door
circuit will not cause a failure in any other door circuits.
Shortcircuits or other faults in alarm or indicator circuits of a
door are not to result in a loss ofpower operation of that door.
Arrangements are to be such that leakage of water into
theelectrical equipment located below the bulkhead deck will not
cause the door to open.
9.17.8 5-7-2/9.17.8
A single electrical failure in the power operating or control
system of a power-operatedsliding watertight door is not to result
in opening of a closed door. Availability of the powersupplies is
to be continuously monitored at a point in the electrical circuit
as near aspracticable to each of the motors required by
5-7-2/9.17.3. Loss of any such power supply isto activate an
audible and visual alarm at the central operating console at the
navigatingbridge.
9.19 Central Operating Console 5-7-2/9.19
9.19.1 5-7-2/9.19.1
The central operating console at the navigating bridge is to
have a master mode switchwith two modes of control: a local control
mode which will allow any door to be locallyopened and locally
closed after use without automatic closure, and a doors closed
modewhich will automatically close any door that is open. The doors
closed mode will permitdoors to be opened locally and will
automatically reclose the doors upon release of the localcontrol
mechanism. The master mode switch is to be normally in the local
controlmode.
9.19.2 5-7-2/9.19.2
The central operating console at the navigating bridge is to be
provided with a diagramshowing the location of each door, with
visual indicators to show whether each door is openor closed. A red
light is to indicate a door is fully open and a green light is to
indicate a dooris fully closed. When the door is closed remotely
the red light is to indicate the intermediateposition by flashing.
The indicating circuit is to be independent of the control circuit
for eachdoor.
9.19.3 5-7-2/9.19.3
The arrangements are to be such as to prohibit the opening of
any door from the centraloperating console.
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968 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
9.21 Watertight Doors in Cargo Spaces 5-7-2/9.21
Watertight doors of substantial construction may be fitted in
watertight bulkheads dividing cargobetween deck spaces. Such doors
may be hinged, rolling or sliding doors and are not to be
remotelycontrolled. They are to be fitted at the highest level and
as far from the shell plating as practicable, butin no case is the
outboard vertical edge to be situated at a distance from the shell
plating which is lessthan one fifth of the breadth of the vessel,
such distance being measured at right angles to thecenterline of
the vessel at the level of the deepest subdivision load line.
All watertight doors in the cargo spaces are to be kept closed
during navigation and should any of thedoors be accessible during
the voyage, they are to be fitted with a device which prevents
unauthorizedopening. When it is proposed to fit such doors, the
number and arrangements are to be speciallyconsidered.
9.23 Portable Plates 5-7-2/9.23
Portable plates on bulkheads are not permitted except in
machinery spaces. The necessary precautionsare to be taken in
replacing them to ensure that the joints are watertight.
The Bureau will consider not more than one power-operated
sliding watertight door in each maintransverse bulkhead larger than
1.2 m (3.94 ft) in clear opening width being substituted for
theseportable plates, provided these doors are closed during
navigation except, in case of urgent necessity,the doors may be
opened at the discretion of the master. These doors need not meet
the requirementsof 5-7-2/9.17.1(d) regarding complete closure by
hand-operated gear in 90 seconds provided the doorscan be closed in
a reasonable time.
9.25 Miscellaneous 5-7-2/9.25
9.25.1 5-7-2/9.25.1
Where trunkways or tunnels for piping, or for any other purpose
are carried through maintransverse watertight bulkheads, they are
to be watertight and in accordance with therequirements of
5-7-2/9.1. The access to at least one end of each such tunnel or
trunkway, ifused as a passage at sea, is to be through a trunk
extending watertight to a height sufficient topermit access above
the margin line. The access to the other end of the trunkway or
tunnelmay be through a watertight door of the type required by its
location in the vessel. Suchtrunkways or tunnels are not to extend
through the first subdivision bulkhead abaft thecollision
bulkhead.
9.25.2 5-7-2/9.25.2
Where it is proposed to fit tunnels piercing main transverse
watertight bulkheads, these willbe subject to special
consideration.
9.25.3 5-7-2/9.25.3
Where trunkways in connection with refrigerated cargo and
ventilation or forced draft trunksare carried through more than one
watertight bulkhead, the means of closure at such openingsare to be
operated by power and be capable of being closed from a central
position situatedabove the bulkhead deck.
11 Decks, Superstructures and Deck Houses 5-7-2/11
11.1 General 5-7-2/11.1
The decks and superstructures and supporting structures are to
be in accordance with Sections 3-2-3,3-2-7, 3-2-8, and 3-2-11 in
addition to the following. The strength deck plating is in general
to be inaccordance with 3-2-3/5.1 and equation 2a in 3-2-3/Table 2
and the buckling strength is to be inaccordance with
5-7-2/1.3.4.
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 969
11.3 Watertight Decks, Trunks, Tunnels, Duct Keels and
Ventilators 5-7-2/11.3
11.3.1 5-7-2/11.3.1
Watertight decks, trunks, tunnels, duct keels and ventilators
are to be of the same strength aswatertight bulkheads at
corresponding levels. The means used for making them watertight,and
the arrangements adopted for closing openings in them are to be
submitted for approval.Watertight ventilators and trunks are to be
carried at least up to the bulkhead deck.
11.3.2 (1998) 5-7-2/11.3.2
In ro-ro passenger vessels, where a ventilation trunk penetrates
the bulkhead deck, the trunk isto be capable of withstanding the
water pressure that may be present within the trunk, afterhaving
taken into account the maximum allowable heel angle during
intermediate stages offlooding.
11.3.3 (1998) 5-7-2/11.3.3
In ro-ro passenger vessels, where all or part of the penetration
of the bulkhead deck is on themain ro-ro deck, the trunk is to be
capable of withstanding impact pressure due to internalwater
motions (sloshing) of water trapped on the ro-ro deck.
11.5 Support Structures 5-7-2/11.5
The deck beams, longitudinals, girders, transverses and pillars
are to be in accordance with Section3-2-7 and Section 3-2-8 with
the following modifications.
11.5.1 5-7-2/11.5.1
In lieu of 3-2-7/Table 1, design h of 0.50 m (1.64 ft) may be
used in way of all enclosedaccommodation spaces except that in
store rooms, air conditioning rooms, etc. where deckloadings exceed
3530 N/m2 (360 kgf/m2, 75 lbf/ft2), the h is to be
increasedproportionately. Other values may be considered upon
submission of calculations. Also see5-7-2/1.3.5 for all supporting
structures. The structural stability of the stiffening members
ofthe decks are to be investigated.
11.5.2 5-7-2/11.5.2
The height h for any pillar is not to be less than the height
for the beams at the top of thepillar plus the sum of the heights
for the beams of all complete decks and partialsuperstructures and
houses supported by the pillar.
11.7 Effective Lower Deck Thickness 5-7-2/11.7
Where an analysis based upon the ultimate strength is submitted,
the requirements in 3-2-3/5.1 may bespecially considered.
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P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 3 Subdivision and Stability 5 - 7 - 3
1 General 5-7-3/1
When the vessel is issued a Passenger Ship Safety Certificate by
the Administration or its agent otherthan the Bureau, such
certificate will be accepted as evidence of compliance with
subdivision andstability requirements of Regulations II-1/4 through
8 of the 1974 SOLAS Convention, as amended.On all other passenger
vessels, when authorized by an Administration and requested by the
Owner,the Bureau will review the data on the subdivision and
stability for compliance with 1974 SOLASConvention, as amended, on
behalf of the Administration. However, also see 5-7-1/1.9.
3 Inclining Experiment and Trim and Stability Booklet
5-7-3/2
When the vessel is issued a Passenger Ship Safety Certificate by
the Administration or its agent otherthan the Bureau, such
certificate will be accepted as evidence of compliance with the
requirement foran inclining experiment and Trim and Stability
Booklet of Regulation II-1/ 22 of the 1974 SOLASConvention, as
amended. On all other passenger vessels, when authorized by an
Administration andrequested by the Owner, the Bureau will review
the inclining experiment and Trim and StabilityBooklet and data for
compliance with 1974 SOLAS Convention, as amended, on behalf of
theAdministration. However, also see 5-7-1/1.9.
5 Damage Control Plans 5-7-3/3
There is to be permanently exhibited, for the guidance of the
officers in charge of the vessel, plansshowing clearly for each
deck and hold the boundaries of the watertight compartments, the
openingstherein with the means of closure and position of any
controls thereof, and the arrangements for thecorrection of any
heel due to flooding. In addition, booklets containing the
aforementionedinformation are to be made available to the officers
of the vessel.
When the vessel is issued a Passenger Ship Safety Certificate by
the Administration or its agent otherthan the Bureau, such
certificate will be accepted as evidence of compliance with the
requirements fordamage control plans of Regulation II-1/23 of the
1974 SOLAS Convention, as amended. On all otherpassenger vessels,
when authorized by an Administration and requested by the Owner,
the Bureauwill review the damage control plan for compliance with
1974 SOLAS Convention, as amended, onbehalf of the Administration.
However, also see 5-7-1/1.9.
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P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 4 Fire Safety Measures 5 - 7 - 4
1 Structural Fire Protection 5-7-4/1
When the vessel is issued a Passenger Ship Safety Certificate by
the Administration or its agent otherthan the Bureau, such
certificate will be accepted as evidence of compliance with the
structural fireprotection requirement of Regulation II-2/16, 18, 23
through 35 of the 1974 SOLAS Convention, asamended. On all other
passenger vessels, when authorized by an Administration and
requested by theOwner, the Bureau will review the structural fire
protection data and plans for compliance with 1974SOLAS Convention,
as amended, on behalf of the Administration. However, also see
5-7-1/1.9.
3 Fire Control Plans 5-7-4/2
When the vessel is issued a Passenger Ship Safety Certificate by
the Administration or its agent otherthan the Bureau, such
certificate will be accepted as evidence of compliance with
furnishing of firecontrol plans requirement of Regulation II-2/20
of the 1974 SOLAS Convention, as amended. On allother passenger
vessels, when authorized by an Administration and requested by the
Owner, theBureau will review the fire control plans for compliance
with 1974 SOLAS Convention, as amended,on behalf of the
Administration. However, also see 5-7-1/1.9.
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 975
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 5 Machinery Equipment andSystems
CONTENTS1 Emergency Source of Power
.............................................. 977
1.1
General.................................................................................
977
1.3 Emergency Loads
................................................................
977
1.5 Emergency Source of Electrical
Power................................ 979
1.7 Transitional Source of Electrical Power
............................... 979
1.9 Emergency Switchboard
...................................................... 980
1.11 Non-emergency
Circuits.......................................................
980
1.13 Distribution System
..............................................................
981
3 Electrical Cables in Accommodation Areas
...................... 981
5 Fire Pumps, Fire Mains, Hydrants, Hoses
andNozzles.................................................................................
981
5.1
General.................................................................................
981
5.3 Fire Pumps
...........................................................................
981
5.5 Fire
Mains.............................................................................
982
5.7 Hydrants
...............................................................................
982
5.9 Fire Hoses
............................................................................
982
5.11
Nozzles.................................................................................
983
5.13 Location and Arrangement of Water Pumps, etc, forOther
Fire-Extinguishing Systems........................................
983
7 Bilge and Ballast Systems
.................................................. 983
7.1
General.................................................................................
983
7.3 Bilge Piping System
.............................................................
983
7.5 Bilge Pumps
.........................................................................
984
9 Fixed Fire Detection and Fire Alarm Systems,Automatic
Sprinkler, Fire Detection and FireAlarm Systems
....................................................................
985
9.1 Vessels Carrying 36 Passengers or Less
............................ 985
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976 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
9.3 Vessels Carrying More Than 36
Passengers....................... 985
9.5 Control Station for Fire Detection
Alarms............................. 985
11 Cargo
Spaces.......................................................................986
11.1 Special Category Spaces
..................................................... 986
11.3 Protection of Cargo Spaces, Other than Special
CategorySpaces, Intended for the Carriage of Motor Vehicles
withFuel in Their Tanks for Their Own
Propulsion...................... 986
11.5 Protection of Closed and Open Ro-Ro Cargo Spaces,Other than
Special Category Spaces and Ro-Ro SpacesIntended for the Carriage
of Motor Vehicles with Fuel inTheir
Tanks...........................................................................
986
11.7 Other Cargo
Spaces.............................................................
986
13 Special Arrangements in Machinery Spaces
.....................986
13.1 Remote
Controls...................................................................
986
13.3 Fuel Oil Tanks
......................................................................
987
13.5 Sounding Pipes
....................................................................
987
13.7 Doors in Machinery Spaces
................................................. 987
15 Firemans Outfits
.................................................................987
15.1
Number.................................................................................
987
15.3 Storage
.................................................................................
987
15.5 Breathing
Apparatus.............................................................
987
17 Manual Alarm
System..........................................................988
19 General and Special Fire Alarms
........................................988
21 General Emergency Alarm
System.....................................988
23 Public Address System
.......................................................988
25 Portable Communication
Equipment..................................988
27 Dangerous
Goods................................................................988
29 Protection Against Noise in Machinery
Spaces.................988
31 Vibration Prediction Calculations
.......................................989
33 Helicopter Landing and Pick-up
Areas...............................989
33.1 Helicopter Pick-up
Area........................................................
989
33.3 Helicopter Landing
Area....................................................... 989
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 977
P A R T
5C H A P T E R 7 Vessels Intended to Carry
Passengers
S E C T I O N 5 Machinery Equipment andSystems 5 - 7 - 5
1 Emergency Source of Power 5-7-5/1
1.1 General 5-7-5/1.1
The emergency source of power is to be in accordance with
4-8-2/5.1, 4-8-2/5.13.5 and 4-8-2/5.15, inaddition to the
following.
1.3 Emergency Loads 5-7-5/1.3
The electrical power available is to be sufficient to supply all
those services that are essential forsafety in an emergency, due
regard being paid to such services as may have to be
operatedsimultaneously. Having regard to starting currents and the
transitory nature of certain loads, theemergency source of
electrical power is to be capable of supplying simultaneously at
least thefollowing services for the periods specified hereinafter,
if they depend upon an electrical source fortheir operation:
1.3.1 5-7-5/1.3.1
For a period of 36 hours, emergency lighting:
1.3.1(a) at every muster and embarkation station and over the
sides of the vessel;
1.3.1(b) in alleyways, stairways and exits giving access to the
muster and embarkationstations;
1.3.1(c) in all service and accommodation alleyways, stairways
and exits, personnelelevators;
1.3.1(d) in the machinery spaces and main generating stations
including their controlpositions;
1.3.1(e) in all control stations, machinery control rooms, and
at each main and emergencyswitchboard;
1.3.1(f) at all stowage locations for firemens outfits;
1.3.1(g) at the steering gear; and
1.3.1(h) at the fire pump, the sprinkler pump and the emergency
bilge pump and at thestarting position of their motors.
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978 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
1.3.2 5-7-5/1.3.2
For a period of 36 hours:
1.3.2(a) the navigation lights and other lights required by the
International Regulations forPreventing Collisions at Sea, and
1.3.2(b) (1 February 1995) VHF radio installation required by
Regulation IV/7.1.1 andIV/7.1.2 of SOLAS 1974, as amended; and if
applicable:
i) The MF radio installation required by Regulations IV/9.1.1,
IV/9.1.2, IV/10.1.2 andIV/10.1.3 of SOLAS 1974, as amended
ii) The ship earth station required by Regulation IV/10.1.1 of
SOLAS 1974, as amended
iii) The MF/HF radio installation required by Regulations
IV/10.2.1, IV/10.2.2 andIV/11.1 of SOLAS 1974, as amended.
1.3.3 5-7-5/1.3.3
For a period of 36 hours:
1.3.3(a) all internal communication equipment required in an
emergency;
1.3.3(b) shipborne navigational equipment (i.e., radar, gyro
compass, etc.) as required byRegulation V/12 of SOLAS 1974, as
amended, except that where such provision isunreasonable or
impracticable for vessels having a gross tonnage of less than 5,000
tons, thisrequirement may be waived if evidence of approval by the
Administration is submitted;
1.3.3(c) the fire detection and fire alarm system, and the fire
door holding and releasesystem; and
1.3.3(d) for intermittent operation of daylight signaling lamp,
the vessels whistle, themanually operated fire alarms, and all
internal signals that are required in an emergency.
1.3.4 5-7-5/1.3.4
For a period of 36 hours:
1.3.4(a) one of the required fire pumps;
1.3.4(b) the automatic sprinkler pump, if any; and
1.3.4(c) the emergency bilge pump and all the equipment
essential for the operation ofelectrically powered remotely
controlled bilge valves.
1.3.5 5-7-5/1.3.5
The steering gear for the time period and electrical capacity
specified in 4-8-2/5.5.10 and4-3-4/11.9 except where an independent
source of power to the steering gear is fitted withinthe steering
gear compartment that complies with 4-3-4/11.9.
1.3.6 5-7-5/1.3.6
For a period of half an hour:
1.3.6(a) any watertight doors required by 5-7-2/9 to be
power-operated together with theirindicators and warning
signals;
1.3.6(b) the emergency arrangements to bring the elevators to
deck level for the escape ofpersons. The passenger elevators may be
brought to deck level sequentially in an emergency.
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ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001 979
1.3.7 5-7-5/1.3.7
In a vessel engaged regularly on voyages of short duration and
provided it can bedemonstrated that an adequate standard of safety
would be attained, a period less than the 36hours period specified
in 5-7-5/1.3.1 to 5-7-5/1.3.4 but not less than 12 hours would
beconsidered.
1.3.8 5-7-5/1.3.8
If the emergency generator is used to meet the requirements for
dead vessel start(see 4-8-2/3.1.3) it is to be sized to supply
simultaneously power to emergency lighting,internal communications,
and fire detection and alarms in addition to power needed to
startthe main propulsion plant.
1.5 Emergency Source of Electrical Power 5-7-5/1.5
The emergency source of electrical power may be either a
generator or an accumulator battery, whichis to comply with the
following:
1.5.1 5-7-5/1.5.1
Where the emergency source of electrical power is a generator,
it is to be:
1.5.1(a) driven by a suitable prime mover with an independent
supply of fuel having aflashpoint (closed cup test) of not less
than 43C (109F);
1.5.1(b) (1 Oct. 1994) started automatically upon failure of the
electrical supply from themain source of electrical power and is to
be automatically connected to the emergencyswitchboard; those
services referred to in 5-7-5/1.7 are then to be transferred
automatically tothe emergency generating set. The automatic
starting system and the characteristic of theprime mover are to be
such as to permit the emergency generator to carry its full rated
load asquickly as is safe and practicable, subject to a maximum of
45 seconds; and
1.5.1(c) provided with a transitional source of emergency
electrical power according to5-7-5/1.7.
1.5.2 5-7-5/1.5.2
Where the emergency source of electrical power is an accumulator
battery, it is to be capableof:
1.5.2(a) carrying the emergency electrical load without
recharging while maintaining thevoltage of the battery throughout
the discharge period within 12 percent above or below itsnominal
voltage;
1.5.2(b) automatically connecting to the emergency switchboard
in the event of failure of themain source of electrical power;
and
1.5.2(c) immediately supplying at least those services specified
in 5-7-5/1.7.
1.7 Transitional Source of Electrical Power 5-7-5/1.7
The transitional source of electrical power required by
5-7-5/1.5 is to consist of an accumulatorbattery suitably located
for use in an emergency. It is to operate without recharging while
maintainingthe voltage of the battery throughout the discharge
period within 12 percent above or below itsnominal voltage and be
of sufficient capacity and so arranged as to supply automatically
in the eventof failure of either the main or emergency source of
electrical power at least the following services;
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1.7.1 5-7-5/1.7.1
For half an hour:
1.7.1(a) the lighting required by 5-7-5/1.3.1 and
5-7-5/1.3.2
1.7.1(b) all services required by 5-7-5/1.3.3(a), 5-7-5/1.3.3(c)
and 5-7-5/1.3.3(d) unless suchservices have an independent supply
for the period specified from an accumulator batterysuitably
located for use in an emergency.
1.7.2 5-7-5/1.7.2
Power to operate the watertight doors, as required by
5-7-2/9.17.3(c), but not necessarily allof them simultaneously,
unless an independent temporary source of stored energy is
provided.Power to the control, indication and alarm circuits as
required by 5-7-2/9.17.2 for half anhour.
1.9 Emergency Switchboard 5-7-5/1.9
1.9.1 5-7-5/1.9.1
The emergency switchboard is to be installed as near as is
practicable to the emergencysource of electrical power.
1.9.2 5-7-5/1.9.2
Where the emergency source of electrical power is a generator,
the emergency switchboard isto be located in the same space unless
the operation of the emergency switchboard wouldthereby be
impaired.
1.9.3 5-7-5/1.9.3
No accumulator battery fitted in accordance with these
requirements is to be installed in thesame space as the emergency
switchboard. An indicator is to be mounted in a suitable placeon
the main switchboard or in the machinery control room to indicate
when the batteries,constituting either the emergency source of
electrical power or the transitional source ofemergency electrical
power referred to in 5-7-5/1.5 or 5-7-5/1.7, are being
discharged.
1.9.4 5-7-5/1.9.4
The emergency switchboard is to be supplied during normal
operation from the mainswitchboard by an interconnector feeder
which is to be adequately protected at the mainswitchboard against
overload and short circuit and which is to be disconnected
automaticallyat the emergency switchboard, upon failure of the main
source of electrical power, by aswitch, circuit breaker, or other
equivalent disconnecting device. Where the system isarranged for
feedback operation, the interconnector feeder is also to be
protected at theemergency switchboard at least against overload and
short circuit protection and is to bearranged to open before the
generator is overloaded.
1.9.5 5-7-5/1.9.5
In order to ensure ready availability of the emergency source of
electrical power,arrangements are to be made where necessary to
disconnect automatically non-emergencycircuits from the emergency
switchboard to ensure that power is available to the
emergencycircuits.
1.11 Non-emergency Circuits 5-7-5/1.11
Provided that suitable measures are taken for safeguarding
independent emergency operation under allcircumstances, the
emergency generator may be used exceptionally, and for short
periods, to supplynon-emergency circuits.
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1.13 Distribution System 5-7-5/1.13
Electrical distribution systems are to be so arranged that fire
in any main vertical zone as is defined inRegulation II-2/3.9 will
not interfere with services essential for safety in any other such
zone. Thisrequirement will be met if main and emergency feeders
passing through any such zone are separatedboth vertically and
horizontally as widely as is practicable.
3 Electrical Cables in Accommodation Areas (1999) 5-7-5/3
In addition to 4-8-3/9.5, electrical cables installed in
accommodation areas are to be of a low-halogencontent type meeting
a recognized test standard. To verify the aforementioned, an
affidavit from thecable manufacturer attesting to such effect is to
be included in pertinent plans submission.
5 Fire Pumps, Fire Mains, Hydrants, Hoses and Nozzles
5-7-5/5
5.1 General 5-7-5/5.1
The fire pumps, fire mains, hydrants, hoses and nozzles are to
be in accordance with 4-7-3/1 inaddition to the following.
5.3 Fire Pumps 5-7-5/5.3
5.3.1 Number of Fire Pumps 5-7-5/5.3.1
Ships of 4,000 tons gross tonnage and over are to be provided
with at least threeindependently driven fire pumps and ships of
less than 4,000 tons gross tonnage are to beprovided with at least
two independently driven fire pumps.
5.3.2 Capacity of Fire Pumps 5-7-5/5.3.2
The fire pumps required by 5-7-5/5.3.1 above are to be capable
of delivering for fire-fightingpurposes a quantity of water not
less than two thirds that required to be dealt with by the
bilgepumps when employed for bilge pumping at the appropriate
pressure specified in 5-7-5/5.5.2.
5.3.3 Arrangement of Fire Pumps and Power Sources
5-7-5/5.3.3
The arrangement of sea connections, fire pumps and their source
of power are to be locatedaft of the collision bulkhead and are to
be such to ensure that:
5.3.3(a) in ships of 1,000 tons gross tonnage and upwards, a
fire in any one compartment willnot put all the fire pumps out of
action.
5.3.3(b) (1996) in ships of less than 1,000 tons gross tonnage,
if a fire in any onecompartment could put all the pumps out of
action, an emergency fire pump complying with4-7-3/1.5.3 is to be
provided. The emergency fire pump is to be capable of
simultaneouslydelivering a 12 m (40 ft) jet throw from any two
adjacent hydrants located in accordance with5-7-5/5.7.1.
5.3.4 Arrangement of Fire Water Supply 5-7-5/5.3.4
The arrangements for the ready availability of water supply are
to be:
5.3.4(a) In ships of 1,000 tons gross tonnage and upwards such
that at least one effective jetof water is immediately available
from any hydrant in an interior location and so as to ensurethe
continuation of the output of water by the automatic starting of a
required fire pump;
5.3.4(b) In ships of less than 1,000 tons gross tonnage an
effective stream is to be readilyavailable;
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982 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
5.3.4(c) If fitted with periodically unattended machinery
spaces, provisions for fixed waterfire-extinguishing arrangement
for such spaces equivalent to those required for normallyattended
machinery spaces are to be provided.
5.5 Fire Mains 5-7-5/5.5
5.5.1 Size 5-7-5/5.5.1
The diameter of the fire main and water service pipes is to be
sufficient for the effectivedistribution of the maximum required
discharge from two fire pumps operatingsimultaneously.
5.5.2 Pressure (1 Oct. 1994) 5-7-5/5.5.2
With the two pumps simultaneously delivering through nozzles the
quantity of waterspecified in 5-7-5/5.5.1, through any adjacent
hydrants, the following minimum pressures areto be maintained at
all hydrants:
5.5.2(a) 4,000 tons gross tonnage and upwards 0.4 N/mm2 (4.1
kgf/cm2, 58 psi)
5.5.2(b) Less than 4,000 tons gross tonnage 0.3 N/mm2 (3.1
kgf/cm2, 44 psi)
The maximum pressure at any hydrant is not to exceed that at
which the effective control of afire hose can be demonstrated.
5.7 Hydrants 5-7-5/5.7
5.7.1 5-7-5/5.7.1
The number and position of hydrants are to be such that at least
two jets of water notemanating from the same hydrant, one of which
is to be from a single length of hose, mayreach any part of the
vessel normally accessible to the passengers or crew while the
vessel isbeing navigated, and any part of any cargo space when
empty, any ro-ro cargo space or anyspecial category space in which
latter case the two jets will reach any part of such space,
eachfrom a single length of hose. Furthermore, such hydrants are to
be positioned near theaccesses to the protected spaces.
5.7.2 5-7-5/5.7.2
In the accommodation, service and machinery spaces the number
and position of hydrants areto be such that the requirements of
5-7-5/5.7.1 are to be complied with when all watertightdoors and
all doors in main vertical zone bulkheads are closed.
5.7.3 5-7-5/5.7.3
Where access is provided to a machinery space of Category A at a
low level from an adjacentshaft tunnel, two hydrants are to be
provided external to, but near the entrance to thatmachinery space.
Where such access is provided from other spaces, in one of those
spacestwo hydrants are to be provided near the entrance to the
machinery space of Category A. Suchprovision need not be made where
the tunnel or adjacent spaces are not part of the escaperoute.
5.9 Fire Hoses 5-7-5/5.9
At interior locations in vessels carrying more than 36
passengers, the fire hoses are to be connected tothe hydrants at
all times.
There is to be at least one fire hose for each of the hydrants
required by 5-7-5/5.7 and these hoses areto be used only for the
purposes of extinguishing fires or testing the fire-extinguishing
apparatus atfire drills and surveys.
Vessels are to be provided with fire hoses the number and
diameter of which are to be to thesatisfaction of the Bureau.
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5.11 Nozzles 5-7-5/5.11
In vessels carrying more than 36 passengers, each machinery
space of Category A is to be providedwith at least two suitable
water fog applicators.
5.13 Location and Arrangement of Water Pumps, etc, for Other
Fire-ExtinguishingSystems 5-7-5/5.13
Pumps required for the provision of water for other required
fire-extinguishing systems, their sourcesof power and their
controls are to be installed outside the space or spaces protected
by such systemsand are to be so arranged that a fire in the space
or spaces protected will not put any such system outof action.
7 Bilge and Ballast Systems 5-7-5/7
7.1 General 5-7-5/7.1
The bilge and ballast systems are to comply with 4-6-4/5 and
4-6-4/7 respectively and, in addition, tothe following.
7.3 Bilge Piping System 5-7-5/7.3
7.3.1 General 5-7-5/7.3.1
The bilge pumping system is to be capable of operation under all
practicable conditions aftera casualty whether the vessel is
upright or listed. For this purpose wing suctions are togenerally
be fitted except in narrow compartments at the end of the vessel
where one suctionmay be sufficient. In compartments of unusual
form, additional suctions may be required.Arrangements are to be
made whereby water in the compartment may find its way to
thesuction pipes. Where the provision of drainage may for
particular compartments beundesirable, the provision of drainage to
that compartment will be specially considered ifcalculations show
that the survival capability of the vessel will not be impaired by
flooding ofthe compartment.
7.3.2 Emergency Bilge Suctions 5-7-5/7.3.2
All vessels are to be provided with emergency bilge suctions as
indicated in 4-6-4/5.5.5(b).
7.3.3 Spindles 5-7-5/7.3.3
The spindles of the sea inlet and direct suction valves are to
extend well above the engine-room platform
7.3.4 Bilge Suctions 5-7-5/7.3.4
All bilge suction piping up to the connection to the pumps are
to be independent of otherpiping.
7.3.5 Machinery Space 5-7-5/7.3.5
Independently powered bilge pumps situated in machinery spaces
are to have direct suctionsfrom these spaces, except that not more
than two such suctions are to be required in any onespace. Where
two or more such suctions are provided, there is to be at least one
on each sideof the vessel. Independently powered bilge pumps
situated in other spaces with maingenerators or other equipment
essential to the safety of the vessel are to have separate
directsuctions. Direct suctions are to be suitably arranged, and
those in a machinery space are to beof a diameter not less than
that required for the bilge main.
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984 ABS RULES FOR BUILDING AND CLASSING STEEL VESSELS 2001
7.3.6 Manifolds, Cocks and Valves 5-7-5/7.3.6
Manifolds, cocks and valves in connection with the bilge pumping
system are to be soarranged that, in the event of flooding, one of
the bilge pumps may be operative on anycompartment; in addition,
damage to a pump or its pipe connecting to the bilge main
outboardof a line drawn at one fifth of the breadth of the vessel
is not to put the bilge system out ofaction. If there is only one
system of pipes common to all the pumps, the necessary valves
forcontrolling the bilge suctions are to be capable of being
operated from above the bulkheaddeck. If an emergency bilge pumping
system is fitted, it is to be independent of the mainsystem and so
arranged that a pump is capable of operating on any compartment
underflooding condition as specified in 5-7-5/7.3.1; in that case
only the valves necessary for theoperation of the emergency system
need be capable of being operated from above thebulkhead deck.
All cocks and valves referred to above which can be operated
from above the bulkhead deckare to have their controls at their
place of operation clearly marked and are to be providedwith means
to indicate whether they are open or closed.
7.5 Bilge Pumps 5-7-5/7.5
7.5.1 5-7-5/7.5.1
At least three power pumps are to be fitted aft of the collision
bulkhead and connected to thebilge main, one of which may be driven
by the propulsion machinery. Where the criterionnumeral is 30 or
more as defined in Regulation II-1/6, one additional independent
powerpump is to be provided. When the Passenger Ship Safety
Certificate is issued by theAdministration or its agent other than
the Bureau, the builder or designer is to advise theBureau of the
criterion number used by the Administration or its agents.
7.5.2 5-7-5/7.5.2
Where practicable, the power bilge pumps are to be placed in
separate watertightcompartments and so arranged or situated that
these compartments will not be flooded by thesame damage. If the
main propulsion machinery, auxiliary machinery and boilers are in
twoor more watertight compartments, the pumps available for bilge
service are to be distributedas far as is possible throughout these
compartments.
7.5.3 5-7-5/7.5.3
On a vessel of 91.5 m (300 ft) in length and above or having a
criterion numeral of 30 ormore, the arrangements are to be such
that at least one power bilge pump is to be available foruse in all
flooding conditions which the vessel is required to withstand, as
follows:
7.5.3(a) One of the required bilge pumps is to be an emergency
pump of a reliablesubmersible type having a source of power
situated above the bulkhead deck; or
7.5.3(b) the bilge pumps and their sources of power are to be so
distributed throughout thelength