Code of Safety for Special Purpose Ships

ABS OSV Seminar

Miri, Malaysia

28 October 2010

A K Seah

VP Technology and Business Development

2

Agenda

� SPS Code

� Comparing the old and the new codes – Resolution A.534(13) v.

Resolution MSC.266(84)

� Some example requirements

3

Special Purpose Ship (SPS)

� SPS

� Mechanically self-propelled ship

� Perform “industrial functions”

� Unusual design and operational characteristics

� More than 12 special personnel onboard

� Special Personnel

� Not passengers, crew or children under 1 years old

� Onboard because of specialized work to be performed

� E.g. scientists, technician, diving personnel, etc

Saturation diving support vessel

Saturation diving system

4

Early days

� Resolution A.534(13) – Code of Safety for Special Purpose Ships [1983]

� Applicable to ships ≥ 500GT which

carry > 12 special personnel

� Examples of special purpose ship

given in 1.3.4 of the code

� Ships engaged in research,

expeditions and survey

� Ships for training of marine

personnel

� Whale and fish factory ships not engaged in fishing

� Ships processing other living resources of the sea, not engaged

in catching

� Other ships….similar to ships referred to above

� Application of the code has not been “common”

Japanese whale processing ship

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25 years later…

� Resolution MSC.266(84) – Code of Safety for Special Purpose

Ships [2008]

� Supersedes Resolution A.534(13)

� Examples of “special personnel” given in 1.3.11

� Scientists, technicians and

expeditionaries

� Personnel engaged in training

…to develop seafaring skills…

� Personnel who process the catch

of fish, whales or other living

resources of the sea on factory

ships not engaged in catching

� Salvage personnel on salvage ships; cable-laying personnel in cable-

laying ships; seismic personnel in seismic survey ships; diving

personnel on diving support ships…

� Application of the code has gathered momentum

Fugro’s seismic survey vessel

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Driver: Offshore oil and gas production

Source: Douglas Westwood, March 2010

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FPSO field developmentMondo Field, West Africa

Field Operators: Esso, BP, ENI, Statoil

Development by SBM/Sonasing

Water depth: 728m

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Deepwater Field Example

Tahiti Field – Green Canyon, Gulf of Mexico

Operator: Chevron, Statoil, Total

4,100 ft water depth

Subsea trees rated 15,000psi 0-250°F

Spar hull dimensions:

• Diameter 128 ft

• Overall length 555 ft

• Draft 500 ft

• Hard tank length 270 ft

• Center well 50 ft x 55 ft

• Lightship wt 24,000 t

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Deepwater Intervention Vessel: Angola

� FPSO field developments with

subsea production systems

� Stream of activities for

installation, commissioning,

startup

� Need for inspection,

maintenance, repair

� Capabilities of intervention

vessel

� Lifting capacity in

deepwater

� ROV support

� Dynamic positioning

� Cargo deck

� Accommodation

Source: Richard J S Harris et al, Offshore Magazine, Feb 07

Subsea production system / umbilical

flowline riser intervention vessel

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Multi-Service Intervention Vessel

� Aker Oil field Services intervention vessel’s roles:

� Subsea intervention: installation, testing, and maintenance of

subsea modules and top-section downhole equipment

� Riserless well intervention: Logging, reperforation, zonal isolation

through plug-setting and removal

� Riser-based intervention: Coiled tubing and wireline operations, well

testing and clean-up, chemical injection, circulation, sand removal,

push force and

scale milling

� Light drilling: Through-tubing

drilling with coil and downhole

motor, through-tubing rotary

drilling with slim-pipe, and

managed-pressure drilling.

� Two sizes: 121 m construction

vessel; 157 m MODU

Source: Offshore magazine, Feb 2009

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Offshore multi-purpose vessel

Source: Work Boat World, Aug 09

Owner: Adam Offshore, UK

Builder: Astilleros Balenciaga, Spain

LOA 85.74m x 18m x 8m; draft 5.75m

Diesel electric 4 x 2,600kW

Propulsion 2 x 2,450kW; DP2

Crane: 100t at 8m; A-frame: 25t at 6m

Diving System: 12-person saturation to 300m; ROV

Complement: 101 persons

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Offshore multi-purpose vessel

Owner: Island Offshore, Norway

Builder: Ulstein Verft, Norway

LOA 120.2m x 25m x 10m; draft 7.0m

Diesel electric 2 x 4,320kW, 2 x 2,880kW

Propulsion 2 x 3,500W; DP3

Crane: 150t at 8m; 15t at 15m; 10t at 20m

Moon pool: 8m x 8m; 300t handling tower

Complement: 90 persons

Well intervention with subsea lubricator

Subsea construction and installation

Inspection/Maintenance/Repair; ROVSource: Work Boat World, Sep 08

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Some key features of SPS regulations

IMO Res. A.534(13) – Code of Safety for Special Purpose Ships [1983]

� Damage stability – 3 levels

� ≤ 50 SP: longitudinal damage - lesser of 1/3L⅔ or 14.5 m, side damage - lesser of B/5 or 11.5m; transverse bhd & E/R not considered for damage

� ≤ 200 SP: same, except E/R considered for damage

� > 200 SP: SOLAS for passenger ships

� Fire protection – 3 levels

� ≤ 50 SP: SOLAS for cargo ships

� ≤ 200 SP: SOLAS for passenger ships ≤36 passengers

� > 200 SP: SOLAS for passenger ships >36 passengers

� Bilge system – 2 levels

� ≤ 50 SP: SOLAS fro cargo ships + operability requirements in the event of damage

� > 50 SP: SOLAS for passenger ships

� Lifesaving appliances – 2 levels

� ≤ 50 SP: SOLAS for cargo ships other than tankers

� > 50 SP: SOLAS for passenger ships

� Implementation: “uncommon” – e.g. only in more recent years: Singapore, Malaysia,

Panama, and vessels trading in Indian coastal water require compliance

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Some key features of SPS regulations

IMO Res. MSC.266(84) – Code of Safety for Special Purpose Ships [2008]

� Damage stability – SOLAS for passenger ships; SP = Passengers; 3 levels of R-value:

� ≤ 60 persons: R-value = 0.8R

� < 240 persons: R-value by interpolation

� ≥ 240 persons: R-value = R

� Fire protection – 3 levels

� ≤ 60 persons : SOLAS for cargo ships

� ≤ 240 persons : SOLAS for passenger ships ≤36 passengers

� > 240 persons: SOLAS for passenger ships >36 passengers

� Bilge system

� All SPSs should comply with SOLAS as though the ship is a passenger ship

� Lifesaving appliances – 2 levels

� ≤ 60 persons: SOLAS for cargo ships other than tankers

� > 60 persons: SOLAS for passenger ships (passenger = SP)

� Implementation: some countries have adopted the code, example: Cyprus, India, Marshall Islands, Malta, Norway, Singapore, UK

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Some key differences between Old and New

Res. A.167(ES.IV), Res. A.469(12)IMO 2008 IS CodeIntact Stability

SOLAS (old)SOLAS (new); provisions for

Safe Return to Port (SRtP)

Fire Protection

1974 SOLAS Convention as

amended by Resolution

MSC.1(XLV) adopted 20 Nov 1981

1974 SOLAS Convention as

amended – most recent

amendments

Applicable

SOLAS

SPS Code deterministic approachSOLAS probabilistic

approach; provisions for Safe

Return to Port (SRtP)

Damage Stability

< 50 SP

between 50 and 200 SP

>200 SP

< 60 persons

between 60 and 240 persons

> 240 persons

Refers to SPRefers to persons (crew, SP,

passengers)

Special

Personnel

A.534(13)MSC.266(84)

Summary of Requirements of 2008 SPS Code

Additional CommentIMO

Requirement

Special considerations by Admin if machinery space can be

periodically unattended

-Part E Chapter II-1,

excl. Reg 46

Periodically Unattended

Machinery Spaces

Emergency Power Source: apply Reg 42 (Pax)Emergency Power Source: apply Reg 43 (cargo);

If >50m, + Reg 42.2.6.1

Precautions against shock, fire, other electrical hazards:

Reg 45.1 to 45.11 (cargo + Pax)

Precautions against shock,

fire, other electrical hazards: Reg 45.1 to 45.10 (cargo)

Part D Chapter II-1

Electrical Installation

II-1/9, II-1/13, II-1/19, II-1/20, II-1/21, II-1/35 (Pax ship)

II-1/8, II-1/8-1, II-1 part B-2, B-3, B-4 (Pax ship)

N/A: II-1/14, II-1/18

II-1 part B-2, B-3, B-4 (cargo ship)N/A: II-1/8, II-1/8-1, II-1/14, II-1/18

SOLAS

Chapter II-1

Subdivision and

Damage Stability

Section 2.5 of Part B of 2007 Intact Stability CodeIS CodeIntact Stability

Apply Passenger Req

Apply Passenger (>36)Apply Passenger (<36)Apply Cargo ShipChapter II-2Fire Protection

Apply Cargo Ship ReqChapter IIILife Savings

Consider IMDG Code

Chapter XI-2

Chapter V

Chapter IV

Part C Chapter II-1

-Safety of Navigation

IMDG Code: appropriate construction, loading, stowage, segregation and carriage of goods. Formal safety assessment to address stowage, personal protection, emergency procedures

Dangerous Goods

-Security

Apply Cargo Ship ReqRadio Communication

Steering Gear: apply 29.6.1.1 (Pax)Steering Gear: apply 29.6.1.2 (cargo)Machinery Installation

<60 persons >240 persons60<persons<240

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Application of 2008 SPS Code

� Flag to decide:

� Entry into force – 13 May 2008 [contract date, keel laid date, delivery date]

� Applicable to new ship >500GT, >12 SP; status of existing ships not defined

� SPS Code not applicable to ships meeting MODU Code

� Flag may choose MODU Code in lieu of SPS Code

� India

� Self-propelled ship built on/after 13 May 2008 – full compliance

� Self-propelled and Non Self-propelled ships built before 13 May 2008 – certified to meet comparable standard

� Marshall Islands

� Applies SPS Code to all new and existing SPS

� Case-by-case for existing SPSs: generally, at expiry of A.534 certificate, vessel to be reissued with MSC.266 certificate with modification as reasonable and practicable

� Panama

� Applies SPS Code to ship constructed on/after 13 May 2008

� No retroactive application

Some example requirements

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Containment of Fire – Main Vertical Zones

� Persons >240 [SPS Code Ch 6]

� “…the hull, superstructure and deckhouses shall be subdivided into main vertical zones by “A-60” class divisions” [Reg.II-1/9.2.2.1.1.1]

� 60 < Persons ≤ 240 [SPS Code Ch 6]

� “…the hull, superstructure and deckhouses in way of accommodation and service spaces shall be subdivided into main vertical zones by “A” class divisions” [Reg.II-1/9.2.2.1.1.2]

� Where main vertical zones defeats special purpose of the ship, equivalent means may be accepted [Reg. II-2/9.2.2.1.5.1]

SOLAS Reg. II-2/9.2.2.1.5.1:

On ships designed for special purposes, where the provision of main vertical zone bulkheads would defeat the purpose for which the ship is intended, equivalent means for controlling and limiting a fire shall be substituted and specifically approved by the Administration

Fire protection – 3 levels

• ≤ 60 persons: SOLAS for cargo ships

• ≤ 240 persons: SOLAS for passenger ships ≤36 passengers

• > 240 persons: SOLAS for passenger ships >36 passengers

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Containment of Fire – Main Vertical Zones

Some specific requirements associated with MVZs

� Electrical Installation:

� Main and emergency feeders passing through MVZs shall be separated vertically and horizontally as widely as is practicable [Reg. II-1/45.12]

� Fire Detection and Alarm for accommodation and service spaces

� Independent section of detectors for each MVZ [FSS Code 9.2.4.1.4]

� Fire Fighting

� Sprinkler systems: independent section of sprinklers for each MVZ [FSS Code 8.2.4.2.1]

� In accommodation, service and machinery space, at least 2 jets of water, not from same hydrant, to reach any part when all watertight doors and all doors in main vertical zone bulkheads are closed [Reg. II-2/2.1.5.2]

� Fire-fighter’s outfits, additional for MVZ

� SPS >240 persons, 2 outfits for each MVZ [Reg. II-2/10.10..2.2.1]

� Means of escape from spaces above bulkhead deck:

� 2 from each MVZ [Reg. II-2/13.3.2.2]

� Emergency Escape Breathing Devices:

� 2 EEBDs for each MVZ

� SPS >240 persons, additional 2 EEBDs in each MVZ [Reg. II-2/13.3.4]

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Accommodation – fire detection & fire fighting

� Persons ≤ 60 (cargo ship)

� Provide (A) and/or (B) depending on Method IC, IIC or IIIC

� 60 < Persons < 240 (passenger ship ≤ 36)

� Corridors, stairways and escape routes – provide (A) of smoke detector type

� Elsewhere – provide (A) of smoke detector type or (B)

� Persons ≥ 240 (passenger ship > 36)

� Everywhere, including corridors, stairways and escape routes – provide (A) of smoke detector type + (B)

(A) Fixed fire detection and fire

alarm system

(B) Automatic sprinkler, fire

detection and fire alarm system

Accommodation, Service

spaces and Control Stations[Reg. II-2/7.5; II-2/10.6]

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Sizing of sprinkler system pump

� Not simply a matter of:

5 liter/m2/min × 280m2 = 84 m3/h

� Sizing of sprinkler pump :

� Identify the most hydraulically

demanding deck of an area of

280m2, regardless of compartment

� Account for the number of nozzles

covering that area in the as-designed arrangement

� Min. pump size/head =

flow rate determined by hydraulic calculations for

simultaneous discharge through these nozzles at required

pressure

� Sizing of FW pressure tank

� ≥ flow volume of the pump (Ch 8/2.3.3.2) in 2 min.

FSS Code Ch 8/2.3.3.2

The pump and the piping system shall be capable of maintaining the necessary pressure at the level of the highest sprinkler to ensure a continuous output of water sufficient for the simultaneous coverage of a minimum area of 280m2 at the application rate specified in 2.5..2.3 (5 l/m2/min)

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Safe Return to Port (SRtP) – Reg. II-1/8-1; Reg. II-2/21, 22

� Intended for new passenger ships (KL ≥ 1 July 2010)

� Purpose of this regulation

� Define a threshold of damage by fire

� If threshold is not exceeded:

� Be able to perform safe return to port

� Will have safe areas for passengers/crew

� If threshold is exceeded:

� Be able to support orderly evacuation and abandonment

� Flooding of any single WT compartment

� Be able to perform safe return to port

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Safe Return to Port (SRtP) – Reg. II-1/8-1; Reg. II-2/21, 22

� Casualty threshold – defined in Reg.II-2/21

� Loss of space of fire origin up to nearest “A” class

boundary – if space is protected with fixed fire

extinguishing system

� Loss of space of fire origin and the adjacent space

up to the nearest “A” class boundary

� Ability to support Safe Return to Port is defined as: Systems specified in Reg.II-2/21.4 are operational

� Safe Areas – internal space(s) that provide passengers and crew with basic services in Reg.II-2/21.5.1.2 to maintain health of occupants

� Ability to support orderly evacuation and abandonment (OE&A) is defined as: Systems specified in Reg.II-2/22.3.1 are operational for ≥ 3 h

� Applicable to passenger ships ≥120m length or having ≥ 3 main vertical zones

Reg. II-2/21.4 systems

• Propulsion & Steering

• Navigational

• FO transfer

• Int./ext. communications

• Fire protection

• Bilge and ballast

• Powered WT doors

• Safe area support…

Reg. II-2/21.5.1.2 services

• Shelter from weather

• Means to prevent heat

stress or hypothermia

• Light & ventilation

• Food, water, sanitation

• Space for medical care…

Reg. II-2/22.3.1 systems

• Int./ext. communications

• Fire main

• Bilge

• Lighting for evacuation

• Guidance system for evacuation…

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Applicability to SPS

� SPS Code Ch 2/2.3 requires compliance with Reg.II-1/8-1 (SRtP)

for SPS ≥ 240 persons

� Reg.II-1/8-1 - SRtP applies to passenger ship of any length after

flooding of any single WT compartment

� SPS ≥ 240 persons to meet same

� SPS Code Ch 6 requires compliance

with Reg.II-2 via the 3-level rule

� Reg.II-2/21 (SRtP) & 22 (OE&A)

apply to passenger ships ≥120m

length or having ≥ 3 main vertical zones

� SPS > 60 persons to meet same

� SPS Code appears contradictory

� IACS to submit interpretation to IMO DE 55 that it should apply

only to SPS ≥ 240 persons

Fire protection – 3 levels

• ≤ 60 persons: SOLAS for cargo ships

• ≤ 240 persons: SOLAS for passenger ships ≤36 passengers

• > 240 persons: SOLAS for passenger ships >36 passengers

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Outlook

� Increasing use of SPS Code

� Complex code to use due to reference to

SOLAS for passenger ships

� Some requirements designed specifically for passenger ships are not practicable for SPSs

� Careful interpretations needed and consultation with Flag always necessary

w w w . e a g l e . o r g