Hs503 - Cargo

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RULES FOR CLASSIFICATION OF

DETNORSKEVERITASAS

The content of this service document is the subject of intellectual property rights reserved by Det Norske Veritas AS (DNV). The useraccepts that it is prohibited by anyone else but DNV and/or its licensees to offer and/or perform classification, certification and/orverification services, including the issuance of certificates and/or declarations of conformity, wholly or partly, on the basis of and/orpursuant to this document whether free of charge or chargeable, without DNV's prior written consent. DNV is not responsible for theconsequences arising from any use of this document by others.

High Speed, Light Craft andNaval Surface Craft

PART 5 CHAPTER 3

SPECIAL SERVICE AND TYPEADDITIONAL CLASS

CargoJANUARY 2009

This chapter has been amended since the main revision (January 2009), most recently in July 2011.

See Changes on page 3.

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FOREWORD

DET NORSKE VERITAS (DNV) is an autonomous and independent foundation with the objectives of safeguarding life,property and the environment, at sea and onshore. DNV undertakes classification, certification, and other verification andconsultancy services relating to quality of ships, offshore units and installations, and onshore industries worldwide, andcarries out research in relation to these functions.

The Rules lay down technical and procedural requirements related to obtaining and retaining a Class Certificate. It is usedas a contractual document and includes both requirements and acceptance criteria.

The electronic pdf version of this document found through http://www.dnv.com is the officially binding version Det Norske Veritas AS January 2009

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Rules for High Speed, Light Craft and Naval Surface Craft, January 2009Pt.5 Ch.3 Changes Page 3

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CHANGES

General

The present edition of the rules includes additions and amendments decided by the Board in December 2008 andsupersedes the January 2002 edition of the same chapter.

The rule changes come into force as indicated below.

Text affected by the main rule changes is highlighted in red colour in the electronic pdf version. However, where thechanges involve a whole chapter, section or sub-section, only the title may be in red colour.

This chapter is valid until superseded by a revised chapter.

Amendments July 2011

General

The restricted use legal clause found in Pt.1 Ch.1 Sec.4 has been added also on the front page. In addition, the layouthas been changed to one column in order to improve electronic readability.

Main changes coming into force 1 July 2009

Sec.1 General Requirements

A new item B501 has been inserted covering requirements for Failure Mode and Effect Analysis (FMEA) as a

consequence of the HSC Code. The subsequent item has been renumbered. The renumbered item B503 has been amended to cover documentation of control and monitoring systems of bowdoors and television surveillance. Table B1 has been deleted.

Sec.6 Control and Monitoring

This new section has been introduced to cover requirements for instrumentation and automation additional to thosegiven in Pt.4 Ch.9 Control and Monitoring System and Pt.4 Ch.14 Steering Gear.

Corrections and Clarifications

In addition to the above stated rule requirements, a number of corrections and clarifications have been made to the existingrule text.

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Rules for High Speed, Light Craft and Naval Surface Craft, January 2009 Amended July 2011, see page 3Pt.5 Ch.3 Contents Page 4

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CONTENTS

Sec. 1 General Regulations........................................................................................................................... 6

A. Classification..................................................................................................................................................................6A 100 Application............................................................................................................................................................ 6A 200 Class notations ...................................................................................................................................................... 6

A 300 Service area restriction notation............................................................................................................................ 6

B. Documentation ..............................................................................................................................................................7B 100 General ..................................................................................................................................................................7B 200 Wheel loading ....................................................................................................................................................... 7B 300 Ramps for shore connections................................................................................................................................7B 400 Cargo securing systems ........................................................................................................................................7B 500 Instrumentation and automation ...........................................................................................................................8

Sec. 2 Arrangement....................................................................................................................................... 9

A. Cargo Compartments ...................................................................................................................................................9A 100 General ..................................................................................................................................................................9

B. Side and Stern Doors ....................................................................................................................................................9B 100 General ..................................................................................................................................................................9B 200 Structural arrangement..........................................................................................................................................9B 300 Closing and securing of doors .............................................................................................................................. 9B 400 Packing................................................................................................................................................................10

C. Bow Doors....................................................................................................................................................................10C 100 General ................................................................................................................................................................ 10C 200 Structural arrangement........................................................................................................................................ 10C 300 Closing and securing arrangement...................................................................................................................... 10

D. Indication and Surveillance........................................................................................................................................10D 100 Indicator system..................................................................................................................................................10D 200 Surveillance ........................................................................................................................................................11

E. Cargo Hatches .............................................................................................................................................................11E 100 Hatchway coamings............................................................................................................................................11

F. External Vehicle Ramps ............................................................................................................................................ 11F 100 Design, construction and testing.........................................................................................................................11

Sec. 3 Structures, Equipment..................................................................................................................... 12

A. General.........................................................................................................................................................................12A 100 Structural standard .............................................................................................................................................. 12A 200 Local strengthening............................................................................................................................................. 12A 300 Support of cargo handling equipment.................................................................................................................12A 400 Plans and calculations .........................................................................................................................................12

B. Requirements for Stability .........................................................................................................................................12

B 100 General ................................................................................................................................................................ 12B 200 External watertight integrity ............................................................................................................................... 12B 300 Internal watertight integrity ................................................................................................................................13B 400 Surveys................................................................................................................................................................13

Sec. 4 Machinery and System..................................................................................................................... 14

A. Arrangements in Cargo Spaces .................................................................................................................................14A 100 General ................................................................................................................................................................ 14

B. Fire Safety - Cargo Craft............................................................................................................................................14B 100 Application..........................................................................................................................................................14

C. Requirements for Machinery.....................................................................................................................................14C 100 Essential machinery and control .........................................................................................................................14C 200 Bilge pumping systems.......................................................................................................................................14

D. Electrical Installations ................................................................................................................................................14D 100 General ................................................................................................................................................................ 14D 200 Emergency and transitional source of electrical power ......................................................................................14

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Amended July 2011, see page 3 Rules for High Speed, Light Craft and Naval Surface Craft, January 2009 Pt.5 Ch.3 Contents Page 5

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Sec. 5 Container Carriers........................................................................................................................... 17

A. General.........................................................................................................................................................................17A 100 Classification ......................................................................................................................................................17A 200 Scope...................................................................................................................................................................17A 300 Assumptions........................................................................................................................................................17A 400 Definitions .......................................................................................................................................................... 17A 500 Documentation.................................................................................................................................................... 17

A 600 Certificates..........................................................................................................................................................18

B. Testing and Marking of Lashing and Securing Equipment....................................................................................18B 100 Prototype testing .................................................................................................................................................18B 200 Production testing ...............................................................................................................................................19B 300 Marking...............................................................................................................................................................19

C. Arrangements for Stowing and Lashingof Containers ...............................................................................................................................................................19

C 100 General ................................................................................................................................................................ 19C 200 Containers secured by lashings and other removable equipment .......................................................................19C 300 Containers on linear seatings .............................................................................................................................. 19

D. Design Loads................................................................................................................................................................ 19D 100 General ................................................................................................................................................................ 19D 200 Static loads..........................................................................................................................................................19D 300 Dynamic loads .................................................................................................................................................... 20

E. Strength Analysis ........................................................................................................................................................20E 100 Rigid containment arrangements ........................................................................................................................20E 200 Non-rigid containment arrangements .................................................................................................................20

F. Allowable Forces and Stresses ...................................................................................................................................20F 100 Forces acting on and within container structures................................................................................................ 20F 200 Forces in lashings and fittings ............................................................................................................................ 20

G. Signboards ...................................................................................................................................................................21G 100 General ................................................................................................................................................................ 21

Sec. 6 Control and Monitoring................................................................................................................... 22

A. General Requirements................................................................................................................................................22A 100 General ................................................................................................................................................................ 22

B. System Design..............................................................................................................................................................22B 100 General ................................................................................................................................................................ 22

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Rules for High Speed, Light Craft and Naval Surface Craft, January 2009 Amended July 2011, see page 3Pt.5 Ch.3 Sec.1 Page 6

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SECTION 1GENERAL REGULATIONS

A. Classification

A 100 Application

101 The rules in this chapter apply to craft intended for carriage of various dry cargoes. The requirementsshall be regarded as supplementary to those given for the assignment of main class in Parts 1, 2, 3 and 4 of therules.

102 The craft are normally to be arranged for carriage of one or more of the following types of cargo:

containers pallets stowed in racks cars or cargo trailers.

103 The craft shall not be arranged for carriage of liquid cargo in tanks, cargo in bulk or dangerous cargo.

Packed goods, which are accepted carried onboard air-, road- and rail-transportation, can be carried onboard

cargo craft even when it is defined as dangerous by maritime codes.104 The requirements in this chapter apply to cargo craft as defined under the International Code of Safetyfor High-Speed Craft, 2000 (2000 HSC Code).

Guidance note:

Cargo craft is defined as a cargo craft of 500 gross tonnage and upwards, which do not proceed in the course of theirvoyage more than 8 hours at operational speed from a place of refuge when fully laden.(HSC Code 1.3.2.2)

---e-n-d---of---G-u-i-d-a-n-c-e---n-o-t-e---

105 The requirements in this chapter are applicable for classification of high speed cargo craft regardless ofsize as long as the speed and displacement ratio is within the limitation of the HSC Code.

106 Text quoted from the International Code of Safety for High-Speed Craft, 2000 (2000 HSC Code) isprinted in italics.

107 For the application of these rules, wherever the term Administration is quoted, this shall be read asSociety.

A 200 Class notations

201 Craft complying with relevant additional requirements of this chapter will be assigned the type notationCargo.

202 Craft carrying cargo in enclosed hold will be given the class notation Cargo A. The cargo hold shall beregarded as special category space, except for craft limited to carriage of cargo of particular low fire risk whichwill be specially considered.

203 Craft carrying cargo on an open deck will be given the class notation Cargo B. Cargo on open deck shall

be carried in ship containers or equivalently protected.

204 The main objective for the class notations Cargoshall provide a safe transport of the cargo within theoperational restriction of the craft and in addition to provide safety of the cargo even in the damage conditionsof the craft.

205 Cargo spaces are all spaces other than special category spaces used for cargo and trunks to suchspaces.

(HSC Code 1.4.9)

A 300 Service area restriction notation

301 A cargo craft shall be built in accordance with one of the following service restrictions R0, R1, R2, R3,R4or R5.

302 Craft assigned additional class notation Cargo will normally be given operative restrictionscorresponding to 1g for R3. For wider service restrictions the design loads may be increased.

303 Craft assigned the additional class notation Cargomay be given a service area restriction notationcorresponding to maximum:

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Amended July 2011, see page 3 Rules for High Speed, Light Craft and Naval Surface Craft, January 2009 Pt.5 Ch.3 Sec.1 Page 7

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where V is the maximum service speed in loaded condition.

304 The service area restriction is in no case to exceed:

R = 12 V (N miles).

Guidance note:

The HSC Code restricts the operation of cargo craft to a maximum of 8 hours, from a place of refuge.


B. Documentation

B 100 General

101 Details related to additional classes regarding design, arrangement and strength are in general to beincluded in the plans specified for the main class.

102 A loading manual containing information on the loading conditions on which the hull scantlings arebased shall be submitted for approval.

B 200 Wheel loading

201 For the approval of structures subjected to wheel loading the following information shall be submitted:

make and type of cargo handling vehicles including maximum axle load and details of wheel and or footprint arrangement

stowage and securing arrangement for road transporters and other vehicles to be carried. Maximum axleload to be stated.

B 300 Ramps for shore connections

301 For the approval of ramps for shore connections, the following information shall be submitted:

maximum number of vehicles with loads and or the most unfavourable combination of vehicles which maybe situated on the ramp

maximum lifting force and hinge forces, including force direction hoisting and securing arrangement in working and stowed position tightening arrangement if relevant proposed procedure for functional testing plans and supplementary documentation giving pertinent particulars of the hoisting and lowering

mechanical gear arrangement schematic diagrams of hydraulic systems, electrical systems and pneumatic systems braking systems.

B 400 Cargo securing systems

401 For the approval of cargo securing systems the following information shall be submitted:

a cargo stowage plan including specification of:

- size and type of cargo units to be transported- maximum mass of cargo units- strength standard for containers or pallets

a cargo securing plan showing arrangements of lashings, stow racks, fittings and supports including:

- lashings with data regarding type (wire rope, chain, rod, etc.) and dimensions, fittings, materials,minimum breaking strength and specified prestressing

- fittings with data regarding material, dimensions and minimum breaking strength drawings of supporting structures including:

- cell guide structures and adjoining hull structures- stow rack structures with their supporting hull structures- container sockets and other supports with necessary local strengthening of the hull structures.

RV L

8--------- (N miles) in the winter zone=

RV L

4--------- (N miles) in the summer zone=

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B 500 Instrumentation and automation

501 A Failure Mode and Effect Analysis (FMEA) shall be prepared for vessels required to comply withInternational Code of Safety for High-Speed Craft 2000 (hereafter referred to as the HSC Code). The FMEAshould follow guidelines in HSC Code Annex 4 and should include at least:

machinery systems and associated controls directional control system

stabilization system integrated control and monitoring system electrical system.

For Category B Passenger Craft, the FMEA shall take into consideration fire and flooding in one compartment(except in bridge) as a single failure scenario.

A test programme demonstrating conclusions of the FMEA shall be prepared and submitted for approvaltogether with the FMEA.

Guidance note:

Machinery auxiliaries, control and electric equipment location serving independent system shall not be placed in thesame fire zone. Proper arrangement drawings shall be included in the FMEA. Exemptions will be considered in eachcase.


502 For documentation of instrumentation and automation, including computer based control andmonitoring, see also Pt.4 Ch.9 Sec.1.

503 Documentation for control and monitoring systems of bow doors shall be submitted for approval inaccordance with requirements stated in Pt.4 Ch.9 Sec.1.

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SECTION 2ARRANGEMENT

A. Cargo Compartments

A 100 General101 Cargo compartments shall be suitably arranged for carriage of cargo as specified in Sec.1 A102 asapplicable.

102 Cargo compartments shall be located above the freeboard deck. The reserve buoyancy below thefreeboard deck shall be void or utilized only for propulsion machinery and fuel tank installations. Crewcompartments may be arranged below the freeboard deck if the arrangement does not reduce the reserve

buoyancy of the craft as required by Pt.1.

103 Systems and components essential for normal and emergency operation of the craft shall be accessiblewhen the craft is in the fully loaded condition.

B. Side and Stern DoorsB 100 General

101 These requirements cover cargo and service doors in the craft side (abaft the collision bulkhead) andstern above the freeboard deck. Bow doors are dealt with in C.

102 The side and stern doors shall be fitted so as to ensure tightness and structural integrity commensuratewith their location and surrounding structure.

103 Special consideration shall be given to prevent the spread of any leakage water over the deck. A lowcoaming or a recess in the deck and the provision of scuppers is considered appropriate.

104 Doors should preferably open outwards.

B 200 Structural arrangement

201 Door openings in the shell shall have well rounded corners and adequate compensation shall be arrangedwith web frames at sides and stringers or equivalent above and below.

202 Doors shall be adequately stiffened, and means shall be provided to prevent movement of the doors whenclosed. Adequate strength shall be provided in the connections of the lifting and manoeuvring arms and hingesto the doors structures and to the ship structure.

203 Doors with opening area A > 12 m2shall be such that the sea pressure is transferred directly to the hullcoamings.

204 For doors with opening area A < 12 m2securing bolts or similar devices may be accepted as carriers ofsea pressure to the coamings if an arrangement as required in 203 is not feasible.

205 If a door is divided into separate sections, each section shall have full strength independent of the othersections.

206 Where doors also serve as vehicle ramps, the design of the hinges shall take into account uneven loadingon the hinges, even in case of maximum heeling angles.

B 300 Closing and securing of doors

301 Side and stern doors shall be fitted with adequate means of closing and securing, commensurate with thestrength of the surrounding structure.

302 The closing and or supporting devices shall be fitted not more than 2.5 m apart and as close to cornersas possible. However, a large number of small devices should be avoided.

The total external or internal force may normally be considered as equally distributed between the devices.

303 Closing devices shall be simple to operate and easily accessible. Where hinges are used as closingdevices they shall be well integrated into the door structure.

304 Doors on Cargo A craft with opening area >12 m2 shall be provided with closing devices with anarrangement for remote control from a convenient position and with indication of the open and closed positionof every closing device.

305 The operating panel for remote controlled doors shall be inaccessible to unauthorized persons. A notice

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plate giving instructions to the effect that all closing devices shall be locked before leaving harbour, shall beplaced at the operating panel and shall be supplemented by warning indicator lights.

306 Where hydraulic cleating is applied, the system shall be mechanically lockable in the closed position.This means that, in the event of failure of the hydraulic system, the cleating will remain locked.

307 Devices shall be arranged for the ports to be secured in open position.

B 400 Packing401 Packing material shall be of a comparatively soft type, and the supporting forces shall be carried by thesteel structure only. Other types of packing will be specially considered.

402 Flat bars or similar fastening devices for packings shall have scantlings and welds determined with ampleconsiderations to wear and tear.

C. Bow Doors

C 100 General

101 Bow doors shall be situated above the freeboard deck.

102 Where bow doors are leading to a complete or long forward enclosed superstructure, an inner door shallbe fitted. The inner door shall be part of the collision bulkhead. A vehicle ramp may be arranged for thispurpose, provided the regulations concerning the position of the collision bulkhead are fulfilled, see Pt.3 Ch.1Sec.2 B300. If this is not possible a separate inner door has to be installed.

103 Bow doors shall be fitted so as to ensure tightness consistent with operational conditions and to giveeffective protection to inner doors. Inner doors shall be weathertight, and shall be arranged with supports onthe aft side of the doors.

C 200 Structural arrangement

201 In general the strength of bow doors shall be equivalent to the strength of the surrounding structure.Impact strengthening shall be considered.

202 Bow doors of the visor or hinged opening type shall be adequately stiffened, and means shall be provided

to prevent lateral or vertical movement of the doors when closed. Adequate strength shall be provided in theconnections of the lifting arms to the door structure and to the ship structure.

C 300 Closing and securing arrangement

301 Bow doors shall be fitted with adequate means of closing and securing, commensurate with the strengthof the surrounding structure.

302 Closing devices shall be simple to operate and easily accessible.

303 Bow doors with clear opening area >12 m2shall be provided with closing devices with an arrangementfor remote control from a convenient position and with indication of the open and closed position of everyclosing device.

The operating panel for remote controlled bow doors shall be inaccessible to unauthorized persons.

304 Notice plates, giving instructions to the effect that the doors (inner and outer) shall be closed and allclosing devices locked before leaving quay-side (or terminal), shall be placed at the operating panel (or forsmall doors at the door when no operating panel) and on the bridge.

305 Where hydraulic cleating is applied, the system shall be mechanically lockable in closed position. Thismeans that, in the event of failure of the hydraulic system, the cleating will remain locked.

306 Devices shall be arranged for the doors to be secured in open position.

D. Indication and Surveillance

D 100 Indicator system

101 Indicators shall be provided on the operating panel and on the navigation bridge for all shell doors,loading doors and other closing appliances which, if left open or not properly secured, could lead to majorflooding of a special category space or Ro-Ro cargo space.

The indicator system shall be designed on the fail to safe principle and shall show if the door is not fully closedor not secured.

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The power supply for the indicator system shall be independent of the power supply for operating and securingthe doors.

D 200 Surveillance

201 Means shall be arranged, such as television surveillance or a water leakage system, to provide anindication to the navigation bridge of any leakage through bow doors, stern doors or any other cargo or vehicleloading doors which could lead to major flooding of special category spaces or Ro-Ro cargo spaces.

202 Special category spaces and Ro-Ro cargo spaces are either to be patrolled or monitored by effectivemeans, such as television surveillance, so that movement of vehicles in adverse weather and unauthorizedaccess by passengers can be observed whilst the ship is underway.

E. Cargo Hatches

E 100 Hatchway coamings

101 Side coamings of hatchways shall extend to the lower edge of deck beams. Side coamings not formingpart of continuous girders, are below deck to extend two frame spaces beyond the hatch ends.

102 Hatch end coamings not in line with ordinary deck transverses are below deck to extend at least three

longitudinal frame spaces beyond the side coamings.103 If the junction of hatch coamings forms a sharp corner, well rounded brackets shall be fitted towards thedeck both longitudinally and transversely. The hatch end beam shall be given a smooth transition to the decktransverse.

104 The web plate of low hatch side coamings shall be stiffened over the entire height at each frame. Trippingbrackets shall be fitted on every 2nd frame.

105 Cutouts in the top of hatch coamings are normally to be avoided. Unavoidable cutouts shall be circularor elliptical in shape. Local reinforcements shall be given a soft transition in the longitudinal direction.

F. External Vehicle Ramps

F 100 Design, construction and testing

101 Vehicle ramps for shore connection are normally to be built with a grillage system of girders, and localstiffeners in the vehicles moving direction. The ramps shall have sufficient strength for the specified designworking loads and maximum loads during hoisting operation. After end ramps shall have sufficient flexibilityfor resting on the quay during loading and unloading operations with a minimum list of 3 degrees. A directstress analysis may have to be carried out to demonstrate that stresses and flexibility are acceptable.

102 Plates and stiffeners shall satisfy the strength requirements given in Ch.2 Sec.3 A.

103 If the ramp is also acting as a watertight door, relevant requirements given for the main class shall besatisfied.

104 The support structure for large ramps in stowed position will have to be specially considered based ondesign loads as given for heavy units in Pt.3 Ch.1 Sec.2 C. A direct stress analysis may have to be carried out.

105 Satisfactory functional tests shall be carried out.

106 Control handles for winches or operation devices shall be so arranged that they quickly revert to theneutral (stop) position when released. Provision shall be made to lock handles in the neutral position when theoperating gear is unattended.

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SECTION 3STRUCTURES, EQUIPMENT

A. General

A 100 Structural standard101 Craft with class notation Cargo Aor Bshall have a structural strength standard in accordance with therequirements of the main class.

102 Cargo decks shall be marked with signboards stating the maximum load in tonnes per square metre.

103 The design acceleration level of the craft shall be given in the operational manual of the craft and shallbe at least 1 g in LCG.

104 The structural strength of the craft shall be based on the specified maximum cargo load plus the standarddeck loading accelerated with the design acceleration of the craft at each longitudinal position as given by therules. Other acceleration distribution may be used if it is documented by verified analysis that the accelerationlevel differs from the rules taking the maximum loadings into consideration.

A 200 Local strengthening

201 Areas exposed to impact loads from cargo handling equipment shall be locally strengthened or protected(e.g. fender arrangements).

202 Craft with notation Cargo Bshall have bulwarks at the sides with scantling as for sides.

203 Openings in craft side for cargo handling shall be locally reinforced.

204 The main structure in way of areas exposed to impact from the connected harbour arrangements shall besatisfactory strengthened.

205 Bow doors shall be strengthened according to requirement as for Car Ferryin Ch.2 Sec.3 D.

A 300 Support of cargo handling equipment

301 Masts and posts shall be efficiently supported and connected to at least two decks or to one deck and a

mast house top above. If the latter arrangement is adopted, the mast house top shall be of sufficient size andadequately stiffened. A winch house of usual size and scantlings is not considered to meet the requirements.

302 At fastenings for standing rigging and for guys and topping lifts, the deck shall be securely stiffened andreinforced for the additional loading.

303 The support of other lifting arrangement will be specially considered.

A 400 Plans and calculations

401 The following documentation shall be submitted in addition to documentation required for theassignment of the main class:

damage stability calculations (for approval) internal watertight integrity plan (for information).

Guidance note:Details of the above documentation are given in Classification Note No. 20.1 "Stability Documentation - Ships"


B. Requirements for Stability

B 100 General

101 The requirements of this subsection shall be complied with in addition to the stability requirements forthe assignment of the main class.

B 200 External watertight integrity

201 All external openings submerged in the equilibrium position at intermediate or final stages after damage,based on assumptions in Ch.1 Sec.3 B100, shall be of watertight standard and shall comply with 300.

202 All external openings submerged within the minimum residual range beyond the maximum equilibriumposition after damage shall be at least of weathertight standard.

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B 300 Internal watertight integrity

301 The requirements of the 2000 HSC Code 2.2.2.2 apply.

302 Pipes, ducts etc. are, to the extent possible, to be positioned outside the damage penetration zone. Smallpipes through which progressive flooding may not occur may be located within the damage penetration zone.

B 400 Surveys

401 Internal watertight integrity surveyAn internal watertight integrity survey shall be carried out with the following scope:

the internal watertight integrity plan shall be verified as internal watertight subdivision, position and typeof internal closing appliances as well as any applicable alarms, indicators, remote controls and signboardsof these

any pipes, ducts and tunnels in the damage penetration zone, shall be verified as being in accordance withthe plan.

402 Inclining

The requirements of 2000 HSC Code Ch.2 Part C 2.16 applies.

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SECTION 4MACHINERY AND SYSTEM

A. Arrangements in Cargo Spaces

A 100 General101 Craft with the notation Cargo Bshall have the enclosed cargo hold arranged as a special category space.

102 Craft arranged for Ro-Ro cargo space shall comply with the requirements for car deck given in Ch.2Sec.3 A.

B. Fire Safety - Cargo Craft

B 100 Application

101 Cargo Craft shall be designed in accordance with the requirements of Pt.4 Ch.10.

C. Requirements for Machinery

C 100 Essential machinery and control

101 Cargo craft should be capable of maintaining the essential machinery and control in the event of a fireor other casualties in any one compartment onboard. The craft need not be able to return to a place of refugeunder its own power.

(HSC Code 9.9)

C 200 Bilge pumping systems

201 At least two power pumps connected to the main bilge system should be provided, one of which may bedriven by the propulsion machinery. If the Administration is satisfied that the safety of the craft is not impaired,

bilge pumping arrangements may be dispensed with in particular compartments. Alternatively, thearrangement may be in accordance with the requirements of 10.3.14(Pt.4 Ch.6 Sec.4 A100).

(HSC Code 10.10.1)

202 On multihull craft each hull should be provided with at least two power pumps, unless a bilge pump inone hull is capable of pumping bilge in the other hull. At least one pump in each hull should be an independentpower pump.

(HSC Code 10.10.2)

D. Electrical Installations

D 100 General

101 Separation and duplication of electrical supply should be provided for duplicated consumers of essentialservices. During normal operation these consumers may be connected to the same power-bus directly or viadistribution boards or group starters, but should be separated by removable links or other approved means.Each power-bus should be able to supply all equipment necessary to maintain the control of propulsion,steering, stabilizing, navigation, lighting and ventilation, and allow starting of the largest essential electric motorat any load. However, having regard to 12.1.2 (Pt.4 Ch.8), partial reduction in the capability from normaloperation may be accepted. Non-duplicated consumers of essential services connected to the emergencyswitchboard directly or via distribution boards may be accepted. Automatic load-dependent disconnection ofnon-essential consumers may be allowed.

(HSC Code 12.8.1)

D 200 Emergency and transitional source of electrical power

201Where the main source of electrical power is located in two or more compartments which are not

contiguous, each of which has its own self-contained systems, including power distribution and controlsystems, completely independent of each other and such that a fire or other casualty in any one of the spaceswill not affect the power distribution from the others, or to the services required by 12.8.2.2 (202.2), therequirements of 12.3.1, 12.3.2 and 12.3.4 (Pt.4 Ch.8) respectively, may be considered satisfied without anadditional emergency source of electrical power, provided that:

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.1 there is at least one generating set, meeting the requirements of 12.3.12(Pt.4 Ch.8) and each of sufficientcapacity to meet the requirements of 12.8.2.2(202.2), in each of at least two non-contiguous spaces;

.2 the arrangements required by .1 in each such space are equivalent to those required by 12.3.6.1, 12.3.7to 12.3.11 and 12.4(Pt.4 Ch.8) so that a source of electrical power is available at all times to the servicesrequired by 12.8.2(200); and

.3 the generator sets referred to in .1 and their self-contained systems are installed in accordance with 12.3.2(Pt.4 Ch.8).

(HSC Code 12.8.2.1)

202 The electrical power available should be sufficient to supply all those services that are essential for safetyin an emergency, due regard being paid to such services as may have to be operated simultaneously. Theemergency source of electrical power should be capable, having regard to starting currents and the transitorynature of certain loads, of supplying simultaneously at least the following services for the periods specifiedhereinafter, if they depend upon an electrical source for their operation:

.1 for a period of 12 h, emergency lighting:

.1.1 at the stowage positions of life-saving appliances;

.1.2 at all escape routes such as alleyways, stairways, exits from accommodation and service spaces,embarkation points, etc.;

.1.3 in the public spaces, if any;

.1.4 in the machinery spaces and main emergency generating spaces including their control positions;

.1.5 in control stations;

.1.6 at the stowage positions for firemans outfits; and

.1.7 at the steering gear;

.2 for a period of 12 h:

.2.1 the navigation lights and other lights required by the International Regulations for Preventing Collisionsat Sea in force;

.2.2 electrical internal communication equipment for announcements during evacuation;

.2.3 fire detection and general alarm system and manual fire alarms; and

.2.4 remote control devices of fire-extinguishing systems, if electrical;

.3 for a period of 4 h of intermittent operation:

.3.1 the daylight signalling lamps, if they have no independent supply from their own accumulator battery;and

.3.2 the crafts whistle, if electrically driven;

.4 for a period of 12 h:

.4.1 the navigational equipment as required by chapter 13 (Pt.4 Ch.11 Sec.2). Where such provision isunreasonable or impracticable, the Administration may waive this requirement for craft of less than5 000 tons gross tonnage;

.4.2 essential electrically powered instruments and controls for propulsion machinery, if alternate sources ofpower are not available for such devices;

.4.3 one of the fire pumps required by 7.7.8.1(Pt.4 Ch.10 Sec.7 A101);

.4.4 the sprinkler pump and drencher pump, if fitted;

.4.5 the emergency bilge pump and all the equipment essential for the operation of electrically powered

remote controlled bilge valves as required by chapter 10(Pt.4 Ch.6); and

.4.6 craft radio facilities and other loads as set out in 14.12.2(Pt.4 Ch.12 Sec.2 C702);

.5 for a period of 10 min, power drives for directional control devices including those required to directthrust forward and astern, unless there is a manual alternative acceptable to the Administration ascomplying with 5.2.3(Pt.4 Ch.14).

(HSC Code 12.8.2.2)

203 Provision should be made for the periodic testing of the complete emergency system including theemergency consumers required by 12.8.2.2 (202) and should include the testing of automatic startingarrangements.

(HSC Code 12.8.2.3)

204 Where the emergency source of electrical power is a generator, a transitional source of emergencyelectrical power should be provided according to 12.8.3(205), unless the automatic starting system and thecharacteristics of the prime mover are such as to prevent the emergency generator to carry its full rated loadas quickly as is safe and practicable, subject to a maximum of 45 s.

(HSC Code 12.8.2.4)

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205 The transitional source of emergency electrical power required by paragraph 12.8.2.4(204) may consistof an accumulator battery suitably located for use in an emergency which should operate without rechargingwhile maintaining the voltage of the battery throughout the discharge period within 12% above or below itsnominal voltage and be of sufficient capacity and so arranged as to supply automatically, in the event of failureof either the main or emergency source of electrical power, at least the following services, if they depend uponan electrical source for their operation:

.1 for a period of 30 min, the load specified in 12.8.2.2.1, .2 and .3(201.2, 201.2 and 201.3, respectively);and

.2 with respect to the watertight doors:

.2.1 power to operate the watertight doors, but not necessarily simultaneously, unless an independenttemporary source of stored energy is provided. The power source should have sufficient capacity tooperate each door at least three times, i.e. closed - open - closed against an adverse list of 15; and

.2.2 power to the control, indication and alarm circuits for the watertight doors for half an hour.

(HSC Code 12.8.3)

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SECTION 5CONTAINER CARRIERS

A. General

A 100 Classification101 The requirements in this Section apply to craft intended for carriage of standard freight containers forgeneral cargo at predetermined positions on board, on weather deck.

102 For craft with class notations Cargo Band arranged for ship containers a statement of the maximumnumber of twenty-foot equivalent units (TEU) that may be carried will be entered in the Register of Ships, e.g.123 teu containers.

103 Craft with the notation HSLCshall not carry containers in more than two levels.

A 200 Scope

201 The following matters are covered by the classification:

arrangements for stowing and securing of containers on weather deck

design, construction and installation of permanent supporting fittings and structures for the containers design and construction of lashings and other removable equipment for securing of containers. For

equipment produced in series the Societys type approval scheme may be applied instructions (manual) for stowing and securing of the containers.

A 300 Assumptions

301 The classification of the vessel is based on the assumptions that:

the approved container stowage and securing manual is kept available for the stevedores on board the containers are stowed and secured in accordance with the guidelines of the approved manual and the

approved stowage and securing plans all removable equipment for lashing and securing is properly maintained damaged equipment is replaced by equipment of strength, design and make approved by the Society for its

purpose. Makers specification as required in 503 shall be kept available onboard for replaced equipment repair of equipment is carried out by works approved by the Society for this purpose.

302 The above assumptions shall be stated in the approved container stowage and securing manual.

A 400 Definitions

401 Terms:

container:freight container according to ISO-standard, or other specially approved container container stack:containers which are stacked vertically and secured horizontally by stackers, lashings etc.,

see Fig.1 lashing:container securing member effective in tension minimum breaking load:tested minimum breaking strength of wire rope, chain, rod or other member in

accordance with rule specifications

non-rigid securing arrangements: securing arrangements where the stiffnesses of containers influencesupport forces and internal forces in the containers, e.g. lashing arrangements rigid securing arrangements: Securing arrangements where the stiffnesses of the containers do not

influence support forces and internal forces in the containers, e.g. cellular containment arrangementssupport:supporting member being effective in compression (and in tension and shear where relevant) working load:calculated maximum force in supporting member.

A 500 Documentation

501 Information shall be submitted on the load data on which the design approval of supporting structuresand securing arrangements shall be based.

502 The following plans shall be submitted for approval for each container stowing area on decks and onhatch covers:

a container stowage plan including specification of:- size of containers to be transported- maximum mass of loaded containers- strength standard for containers

a container securing plan showing arrangements of lashings, fittings and supports including:

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- lashings with data regarding type (wire rope, chain, rod etc.) and dimensions, fittings, materials,minimum breaking strength and specified prestressing

- fittings with data regarding material, dimensions and minimum breaking strength drawings of supporting structures including:

- adjoining hull structures- container sockets and other supports with necessary local strengthenings of the hull structures.

Fig. 1Individual container stacks with lashings.

503 A container stowage and securing manual shall be submitted for approval. The manual shall includecopies of the container stowage and securing plans as well as an inventory list for all lashings, fittings and otherremovable equipment required for the vessel. The inventory list shall be supplemented by a makersspecification with all details for each type of loose equipment carried onboard. Material and strengthcharacteristics, dimensions, testing procedures and maintenance directions shall be stated. Instructions andsketches showing proper stowing and securing of the containers and use of loose equipment are also to beincluded in the manual.

504 Calculations of maximum forces and stresses in container supports, and adjoining hull structures (e.g.hatch covers and supporting coamings and girders), lashings, containers etc. shall be submitted forconsideration.

A 600 Certificates

601 Structural members and fittings to be welded into the hull structure (e.g. container sockets, supports etc.)shall be delivered with Det Norske Veritas product certificate.

602 Lashing and supporting devices not intended for welding into the hull structure may be delivered with aworks certificate from the material manufacturer.

603 All fittings, lashing and supporting devices shall be delivered with a certificate giving type designation,manufacturer, marking, drawings, safe working load as well as proof loads and breaking loads to be applied,according to the following alternatives:

case-by-case product certificate issued by the manufacturer. Plans, materials and testing procedure shall beapproved in each case

for equipment produced in series the approval of design, materials and testing procedure may be given asa type approval. A type approval certificate will be issued by Det Norske Veritas, and the product will beentered in a list of type approved products.

The normal inspection of each individual product may be replaced by a surveillance of the manufacturersquality control system.

B. Testing and Marking of Lashing and Securing Equipment

B 100 Prototype testing

101 Prototype testing of each item shall be performed on at least 2 samples. Test loads shall be applied in atest rig simulating the actual service conditions. All test samples shall withstand at least the specified minimum

breaking strength. A test result report shall be issued, endorsed by the surveyor.

STACKER

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B 200 Production testing

201 Production testing shall be carried out as follows:

For items produced in large quantities, at least 0.5% of all items to be proof tested. For items with welded partssubject to large tensional loads at least 2% of all items shall be proof tested. For lashing chain cables, eachlength shall be subjected to the proof load. Test load to be applied is normally to be taken as 1.1 times theworking load.

On completion of the proof test, each item shall be examined and shall be free of any significant defects. Forhighly loaded parts such as lashing bars, turnbuckles and heavy shoring devices breaking load tests are inaddition to be performed on at least 0.5% of all items.

202 For chain cables additional breaking load tests shall be performed as follows:

A breaking test specimen consists of at least 3 links connected together, and they shall be manufactured at thesame time and in the same way as well as with the same heat treatment as the chain cable. One breaking testshall be made for every 1000 m of chain cable or fraction thereof, produced in continuous length from the samesteel cast.

The breaking test is considered passed if no sign of fracture has occurred after application of the desired load.

B 300 Marking

301 Each item shall be marked with a suitable type identification mark such as to enable identification withmakers specification in the inventory list.

C. Arrangements for Stowing and Lashingof Containers

C 100 General

101 Containers may be stowed longitudinally or transversely, and shall be effectively supported by the shipstructure.

102 The containers shall be effectively prevented from sliding, lifting or tilting by a system of fixed supportsor detachable lashing equipment.

103 The supporting and lashing equipment shall be arranged and dimensioned in such a way that the supportingforces and internal forces in the containers are within the minimum capabilities of the containers to be used.

C 200 Containers secured by lashings and other removable equipment

201 For containers on weather decks a combination of stacking cones (to prevent sliding), locking cones ortwist locks (to prevent lifting) and lashing shall be applied.

C 300 Containers on linear seatings

301 Upon special consideration an arrangement of permanently fitted linear seatings supporting thecontainers may be accepted, provided the containers are stowed in not more than two tiers with a reducedmaximum weight specified for the uppermost tier.

302 Linear seatings may be obtained by fittings sunk in pockets to match the lower corner fittings of the

container. In lower holds linear seatings obtained by arranging continuous steel or wooden dunnage may beallowed. There shall be a free clearance below the lower corner fittings of the lower tier containers.

303 Containers on linear seatings shall be secured vertically and horizontally by special lashings.

D. Design Loads

D 100 General

101 Securing arrangements for containers shall be based on analysis of support and lashing forces for themost severe realistic static load conditions in combination with extreme dynamic loads.

D 200 Static loads

201 The static conditions which give the largest support forces, lashing forces and the largest internal forcesin the container structure shall be considered.

202 Unless otherwise specified, the maximum mass of 20 foot and 40 foot ISO containers in any givenlocation shall be taken as 24.00 and 30.48 tonnes, respectively.

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203 When limitations regarding the maximum total mass of containers in a particular location (e.g. in acontainer block stack) are specified, the assumed mass of individual containers shall be such that the mostsevere realistic load condition is obtained.

D 300 Dynamic loads

301 Acceleration loads shall be taken in accordance with the combined vertical, transverse and longitudinaldesign accelerations for the craft.

302 All containers in a stack or a group of stacks are assumed to be subjected to the acceleration of gravityin combination with a uniform vertical acceleration according to 301.

303 For containers in positions which may be exposed to wind, the acceleration loads shall be combined withwind forces.

E. Strength Analysis

E 100 Rigid containment arrangements

101 Cellular containment structures and containment arrangements with numerous sideway supports maynormally be considered as rigid containment arrangements.

102 Normally, the racking stiffnesses of the containers may be disregarded in the analysis of the overallresponse of the containment structure. Deflections in the supporting structure shall be taken into account.

103 The analysis shall determine:

nominal stresses in the containment structure vertical and horizontal support forces relevant internal forces in containers.

E 200 Non-rigid containment arrangements

201 Securing arrangements including lashings and other flexible securing members or a small number ofrigid horizontal supports may normally be considered as non-rigid containment arrangements.

202 The analysis shall take duly account of the flexibilities of containers and of the securing members as well

as possible deflections in the supporting structure.

203 Possible effects of clearances between stacks of containers and between containers and supports shall betaken into account.

204 The analysis shall determine:

vertical and horizontal support forces forces in lashings and other securing members internal forces in containers.

F. Allowable Forces and Stresses

F 100 Forces acting on and within container structures

101 Unless otherwise specified, calculated internal reaction forces in containers and external forces on thecontainer structure shall not exceed the tested minimum capabilities stated in the appropriate ISO-standard forfreight containers.

Applicable container strength ratings according to this standard are given in Classification Note No. 32.2.

F 200 Forces in lashings and fittings

201 Working loads in lashings and other members shall comply with the requirement:

Pm = minimum breaking load of considered member

= usage factor= 0.5 for steel wire ropes and chains

=

for rod lashings and for fittings being part of lashings etc.

P Pm

0.85yb------

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y = yield stress. yshall not be taken greater than 0.7 bb = tensile strength of material.

Possible influence on the mechanical properties of the material by welding etc. shall be taken into account.

202 Members of other materials subjected to tensile loads will be specially considered.

G. Signboards

G 100 General

101 As far as found suitable for the vessel in question, stowage and securing plans showing typicalarrangements and giving further reference to the stowage and securing manual shall be posted at suitablelocations in each cargo space and in deck office.

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SECTION 6CONTROL AND MONITORING

A. General Requirements

A 100 General101 For instrumentation and automation, including computer based control and monitoring, the requirementsof in this chapter are additional to those given in Pt.4 Ch.9 and Pt.4 Ch.14.

B. System Design

B 100 General

101 For cargo craft, remote control systems for propulsion machinery and directional control should beequipped with back-up systems controllable from the operating compartment or from an engine control spacesuch as an engine control room outside the operating compartment.

(HSC Code 11.2.4)

102 Category B craft should be provided with at least two independent means of propulsion so that the failureof one engine or its support systems would not cause the failure of the other engine or engine systems andwith additional machinery controls in or close to the machinery space(local control system).

(HSC Code 9.7)

Hs503 - Cargo

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