JACK-UP Specification.pdf

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    FRIEDE AND GOLDMAN LTD

    JU-2000E Jack-Up Drilling Unit

    Based on 032-11 Rev C Rev 0

    JU-2000ECONSTRUCTION SPECIFICATIONS

    140 Complement

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    FRIEDE AND GOLDMAN LTD

    JU-2000E Jack-Up Drilling Unit

    Based on 032-11 Rev C Rev 0

    DOCUMENT REVISION HISTORY

    Revision Description By Date

    A Initial Issue, 140 POB, 907 mt. hook load BW/RS Nov, 20110 Revised based on client comments F&G Feb, 2012

    140 Complement

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    FRIEDE AND GOLDMAN LTD

    JU-2000E Jack-Up Drilling Unit

    Based on 032-11 Rev C Rev 0

    140 Complement

    Table of Contents

    Section

    1.0 CONSTRUCTION SPECIFICATIONS

    2.0 STEEL STRUCTURES

    3.0 HULL FITTINGS

    4.0 INSULATION, JOINER WORK AND DECK COVERING

    5.0 FURNISHINGS

    6.0 LEGS, STRUCTURE, SUPPORTS, JACKS AND HANDLING

    7.0 SAFETY EQUIPMENT

    8.0 PAINTING AND MARKING

    9.0 DECK MACHINERY

    10.0 HAVC SYSTEMS

    11.0 REFRIGERATION

    12.0 MAIN AND AUXILIARY MACHINERY

    13.0 REQUIREMENTS FOR PIPIG SYSTEMS

    14.0 PIPING SYSTEMS

    15.0 ELECTRICAL SYSTEMS

    16.0 TRIALS AND TESTS

    17.0 DRILLING SYSTEMS

    18.0 EQUIPMENT LIST

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    TABLE OF CONTENTS

    SECTION 1.0 GENERAL PROVISIONS ...................................................................................................................... 2

    1.1 INTENTOFDOCUMENTS ................................................................................................................... 2

    1.2

    GENERALDESCRIPTION ................................................................................................................... 2

    1.3 DEFINITIONS......................................................................................................................................... 2

    1.4 CLASSIFICATION,RULES,REGULATIONSANDCERTIFICATES ............................................. 3

    1.5 PERFORMANCECRITERIAANDDESIGNCONDITIONS ............................................................. 5

    1.6 STABILITYREQUIREMENTS ............................................................................................................ 9

    1.7 MATERIALSANDWORKMANSHIP ................................................................................................. 9

    1.8 CONTRACTPLANS .............................................................................................................................. 9

    1.9 BUILDERSDRAWINGS .................................................................................................................... 11

    1.10 DRAWINGAPPROVAL ...................................................................................................................... 11

    1.11 ASBUILT DRAWINGS ................................................................................................................... 12

    1.12 OPERATIONANDMAINTENANCEMANUALS ........................................................................... 12

    1.13 PROGRESSSCHEDULE ..................................................................................................................... 13

    1.14 WEIGHTANDCENTEROFGRAVITY ............................................................................................ 13

    1.15

    PHOTOGRAPHS .................................................................................................................................. 14

    1.16 INSPECTION ........................................................................................................................................ 14

    1.17 SOURCEOFEQUIPMENT ................................................................................................................. 14

    1.18 SUBSTITUTIONS ................................................................................................................................ 15

    1.19 TRIALS,TESTINGANDCLEANING ............................................................................................... 16

    1.20 SPECIFICATIONANDPLANOWNERSHIP .................................................................................... 16

    1.21 OWNERFURNISHEDEQUIPMENT(OFE) ..................................................................................... 16

    1.22 CONSTRUCTIONPORTFOLIO ......................................................................................................... 16

    1.22 NOISEANDVIBRATION ................................................................................................................... 17

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 2

    SECTION 1.0 GENERAL PROVISIONS

    1.1 INTENT OF DOCUMENTS

    It is the intent of this Specification, its Appendices, and the Contract Plans referenced below to provide for the

    construction and delivery to the Owner of a completely outfitted and equipped Self-Elevating Mobile OffshoreDrilling Unit (hereinafter referred to as Vessel). The Vessel is to be constructed, outfitted and furnished to meetthe most current requirements of the American Bureau of Shipping (ABS), IMO MODU Code (2001) including allamendments, and other such specific requirements as are set out in this Specification, the Contract and the ContractPlans.

    The Contract shall include the Builders labor, supply and installation of all materials, machinery, equipment,

    furnishing, and fittings, as specified herein, and as required to deliver a complete and fully operational Drilling Rig,able to drill in water depths up to 121.9 m. (400 ft.) and a drilling depth down to 35,000 ft. (10,668 m.) with 5 "drill pipe under the conditions and limit as defined in the Specifications. The only equipment or materials not to besupplied by the Builder are those items specifically identified as Owner Furnished Equipment (OFE) in Section 18.The Builder shall be responsible for the storage, preservation and installation of all OFE. Upon delivery, the Vessel

    including all material and equipment furnished by Builder and Owner shall be complete, and all its parts, systems,

    and appurtenances shall be proven by appropriate commissioning tests and trials to be thoroughly workable asspecified herein.

    1.2 GENERAL DESCRIPTION

    The Vessel consists of a modified triangular hull with three (3) triangular truss work legs, each fitted with a spudcan at its lower end. The modified triangular hull is 70.4 meters (231 ft.) long, approximately 76.0 meters (249 ft.)wide, and 9.5 meter (31 ft.) deep. The three legs are spaced with the forward leg on the centerline of the Vessel, andthe two aft legs 45.7 meters (150 ft.) aft of the forward leg and 23.8 meters (78.0 ft.) outboard of the Vessel

    centerline. The spud cans, which form the lower segments of the legs, are circular with an outside diameter of 18meters (59 ft.). The total leg length, including the spud can, is 167 meters (547 ft.).

    The multi-level accommodations provides spaces for catering, housekeeping, hospital, offices, and recreationalfacilities for a crew complement of 140 persons in a combination of one and two man staterooms, generally asshown in the Contract Drawings. The heliport is mounted on the bow of the Vessel on the Vessels longitudinal

    centerline. The accommodations also house the helicopter waiting room, radio room, jacking control room and anemergency generator house.

    The drill floor is located on the substructure above the cantilever. The cantilever is capable of being skidded foreand aft, and the drill floor on its substructure can be skidded on the cantilever port and starboard of the Vesselcenterline.

    The cantilever and drill floor shall be outfitted with sufficient lengths of continuous (no breaks) electrical (power,control, communication, etc.) service cables. The cables shall be run from point to point without use of intermediateterminal boxes except where required by the design of the equipment or devices being served. Accommodation for

    movement or translation between structures shall be handled by drag chains at the main deck/cantilever and atcantilever/drill floor interfaces so that the centerline of rotary can be skidded 22.8 meters (75 ft.) aft of the transomand 4.6 meters (15 ft.) either port or starboard. Similarly, where service hoses are used as a catenary, adequate hose

    connections (main deck / cantilever) shall be provided to accommodate the full range of cantilever skidding. Drillfloor translation shall be accommodated without the use of multiple terminals.

    1.3 DEFINITIONS

    When the term "Owner" is used herein, it shall be understood to mean (TBD) or its nominee.

    Where the term "Resident Inspector" or "Inspector" or "Owner's Representative" is used, it shall be understood to be

    any person or member of any organization designated by the Owner for that particular duty.

    Where the term "Builder" or "Contractor" is used, it shall be understood to mean the shipyard awarded theconstruction contract for this vessel.

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 3

    When the term Designer is used, it shall be understood to mean Friede & Goldman, Ltd.

    Where the term "Regulatory Agencies," "Regulatory Requirements," or "Regulatory Bodies" is used, it shall be

    understood to be the requirements of all Government Agencies or statutory regulations relative to the construction ofthe Vessel as defined in sub paragraph 1.1 above or 1.4 below.

    Where the term "Vessel", Drilling Rig or "Unit" is used, it shall be understood to be the Self Elevating DrillingVessel, the construction of which is covered by the Contract, Contract Plans and this Specification.

    Where the terms "Provided," "Furnish" or "Install" are used, it shall be understood that the Builder shall provide, athis expense, any labor, material and equipment (hereinafter referred to as Builder Furnished Equipment or BFE) andany installation materials required for the complete construction and outfitting of the Vessel including that necessaryfor installation, commissioning, and testing of items listed in Section 18 which will be supplied by the Owner asOwner Furnished Equipment (hereinafter referred to as Owner Furnished Equipment or OFE). The Builder shall

    install all the referenced material and/or equipment (OFE and BFE) according to equipment manufacturersrequirements at the Builder's expense, and to the complete satisfaction of the Classification Society, RegulatoryBodies as applicable, and the Owner.

    "Classification Society" - The term Classification Society shall be the American Bureau of Shipping (ABS).

    Contract Plans, Contract Drawings or Drawings- The term Contract Plans shall be those plans or Drawingslisted in Section 1.8.

    Flag country: TBDIt is Owners responsibility to make application; documents approval and certificate obtain to flag country

    regulatory bodies based on Vessel technical condition with assistance of Builder. In the case of design changes dueto requirement of flag country regulatory bodies, such changes shall be made subject to the mutual agreement inwriting under Contract.

    1.4 CLASSIFICATION, RULES, REGULATIONS AND CERTIFICATES

    The Vessel, with its equipment, shall be built under special survey of the Classification Society to the highest

    classification for Vessels of this type of Self-Elevating Drilling Vessel.

    All items required by the Classification Society and other Regulatory Bodies (including latest changes, amendmentsand published revisions) in effect as of the date of the Contract, shall be Builder's responsibility.

    All changes or revisions required by the Classification Society and Regulatory Bodies as a direct result of rule

    changes put into effect after the date of the Contract shall be for Owner's account.

    The Vessel as delivered, shall comply with the applicable regulatory requirements as follows:

    American Bureau of Shipping Rules for Building and Classing Mobile Offshore Drilling Units (2012)including load line assignment, cargo gear, Certification of Drilling Systems (CDS) and distinguished inRecord by Maltese Cross Symbols

    A1 Self-Elevating Drilling Unit

    ABS Rules for Building and Classing Mobile Offshore Drilling Units (2012)

    ABS Steel Vessel Rules (2001, reprint 2006)

    International Convention on Load lines 1966 Regulation, with 1988 protocol.

    International Convention for the Prevention of Pollution from Ships (MARPOL consolidated edition

    2006), and as amended. (Single point discharge collection and treatment)

    International Convention on Tonnage Measurement 1969.

    International Convention for the Safety of Life at Sea Consolidated edition, 2009 (SOLAS) including

    all amendments

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 4

    International Regulations For Preventing Collisions At Sea, 1972, consolidated edition 2003 (COLREG)

    IMO international convention on the control of harmful anti-fouling systems on ships, adopted Oct. 2001,into force Sept. 2008IMO Code for Construction and Equipment of Mobile Offshore Drilling Units, 2009. (ResolutionA.1023).

    IEC publication 61892, part 1 through 7. Mobile and fixed offshore units Electrical installations

    International Tele-Communication and Radio Regulations Convention (1974 and 1982)

    USCG regulations for foreign flagged vessels; CFR 155, CFR 159, CFR 164

    UK Civil Aviation Authority, CAP 437 (for heliport design) 6thedition, April 2010.

    WHO / US department of health and human services, CDC, Vessel sanitation program, constructionguidelines

    ILO, 92 and 133, Accommodation of crews convention, as applied to MODUs by the Flag State

    IMO FSS (Fire Safety Systems) code (2007 edition)

    IMO resolution A.468 (XII) Codes of noise levels on board ships

    ABS Guide for Certification of Cranes and lifting appliances 2007.

    IMO LSA (Life-Saving Appliances) Code (2010 Edition)

    The Builder shall obtain and deliver all necessary certificates and/or documents, except for those which apply to OFE,covering the approval and indicating compliance with the above regulations, including cargo gear certificates and

    admeasurement documents. The Builder shall also furnish a Master Carpenter's Certificate, a Classification Certificate, aBuilders Certificate, a Load Line Certificate, an IMO Certificate, and a Certificate of Inspection (issued by the FlagState), all to be delivered to the Owner. An official number shall be obtained by the Owner and marked on Vessel byBuilder as directed.

    In addition, the Vessel shall be designed and built to meet the following:

    1) Electrical Cable: Cables are to be selected according to IEC 331, 332-3 CAT A and ABS requirements.All cables are to be approved by the Classification Society.

    2) A60 Windows as shown on the Contract Plans and as required by the Regulatory Bodies shall complywith ABS requirements and are to be approved by the Classification Society.

    3) Ambient Temperature for Motors: Motors shall comply with ABS requirements.

    4) IP Model Code of Safe Practice, Part 15 - Area Classification Code for Petroleum Installations

    5) API RP500B Recommended Practice for Classification of Areas for Electrical Installations at DrillingRigs and production Facilities on Land and On Marine Fixed and Mobile Platforms

    6) Blowout Prevention Equipment and Systems

    Blowout Preventers:

    API-RP53API 16ANACE MR01-75Hi-Temp Service

    Choke & Kill Manifold, Piping, and Auto Chokes

    API 6AAPI 16C

    API RP-53NACE MR01-75

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 5

    PSL-03Hi-Temp Service

    DiverterAPI-RP-64NACE MR01-75

    BOP ControlsAPI 16DAPI 16E

    API 53

    7) AWS D1.1 - Structural Welding Code - Steel (latest revision)

    8) AISC - Specification for the Design, Fabrication and Erection of Structural Steel For Buildings

    9) International Association of Classification Societies (IACS) Recommendation No. 47 (5 Oct 2010)

    Part A Shipbuilding and Repair Quality Standard for New Construction

    10) ANSI B31.3 - Chemical Plant and Petroleum Refinery Piping (latest edition)

    11) IP Code of Practice Part 1 Electrical

    12) IP Code of Practice Part 8 Drilling and Production Safety Code for Offshore Operations

    13) ASTM American Society of Testing of Materials

    14) AISE Association of Iron and Steel Engineers

    15) SNAME T&R 5-5A

    16) NACE National Association of Corrosion Engineers

    17) All calculations for cooling and heating shall be in accordance with the applicable sections ofSNAME technical and research bulletins 4-7 and 4-16, ISO 7547 (accommodations), ISO 8861(engine rooms), ISO 8862 (control rooms) and ASHRAE standards including, but not limited to,standards 26, 55, and 62.

    18) ABS Guide for Crew Habitability on Offshore Installations (with regards to noise and vibration only does not apply to room size requirements)

    All fees incidental to the foregoing inspections, certificates, etc., shall be paid by the Builder except for those required forOFE.

    Owner shall be responsible for registering the Unit with the Flag authorities, at his expense, at least 60 days prior to theContractual delivery date.An official number shall be obtained by the Owner and marked on vessel by Builder.

    1.5 PERFORMANCE CRITERIA AND DESIGN CONDITIONS

    Definitions

    Fixed Loads: Consist of the following, all of which are permanently attached and form part of the drilling Vessel:quarters, heliport, substructure, cranes, winches, engines, generators, pump, electrical equipment, electrical cables,drilling machinery, cementing unit, well logging unit, foundations, piping, rigging, all fluids in equipment at normal

    operating levels, etc.

    Movable (fixed) Loads: Consist of the Cantilever, Drill Floor and their fixed machinery, and equipment (i.e. mudreturn tanks, cement package, shale shakers, mud process machinery, drawworks house, drilling machinery,

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 6

    pump(s), electrical equipment, electrical cables, derrick, piping, rigging, all fluids in equipment at normal operatinglevels, etc.).

    Variable Loads: Consist of the following items which are readily removable, shifted, or consumed during the

    drilling operations: bulk mud, bulk chemicals, bulk cement, liquid mud, liquid cement, casing, drill pipe, drillcollar(s), drill water, diesel oil, lube oil, crew, crew supplies, potable water, setback load, conductor tensioner load,

    mud logging unit, BOPs, well test equipment, skimmer tank contents, well logging unit, etc. Also includesSubstructure Drilling Loads, consisting ofHook or rotary loads, setback load, and conductor tensioner load.

    General Operating Conditions:

    Temperature

    Minimum -20 C

    Maximum 45 CRelative Humidity

    Minimum 30 %Maximum 90 %

    Sea water temperature:

    Minimum -2 CMaximum 35 C

    Design Operating Conditions1

    Water Depth (meters) 100 107 122

    Maximum Wave Height (meters) 22.0 20.7 17.1Corresponding Wave Period (sec) 15.5 14.7 14.5

    Maximum Wind Velocity (m/s - one min. avg.) 36 36 36Surface Current (m/s) 0.51 1.03 0.77Air Gap (meters) 19.8 15.2 12.2Penetration (meters) 3 3 3

    Variable Load (mt.) 3,766 3,766 3,766Minimum Design Temperature -20 C -20 C -20 C

    Design Storm Survival Conditions1

    Water Depth (meters) 100 107 122Maximum Wave Height (meters) 22.0 17.4 13.4Corresponding Wave Period (sec) 15.5 15.5 14.1

    Maximum Wind Velocity (m/s - one min. avg.) 44.8 51.4 51.4Surface Current (m/s) 0.51 1.03 0.77Air Gap (meters) 19.8 15.2 12.2Penetration (meters) 3

    3 3

    Variable Load (mt.) 2,995 2,995 2,995

    Minimum Design Temperature -20 C -20 C -20 C

    1These ratings based on:

    - ABS-approved calculation methodology- Leg length: 167 meters- Cantilever position: CL rotary 22.8 meters aft of transom- Conductor (915 mm dia) included- No marine growth

    - P-delta and dynamic amplification per ABS

    Hull Design Loads

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    FRIEDE & GOLDMAN, LTD.

    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 7

    - Maximum Combined Variable (subject tolocation, water depth, environmental conditions,stability nomograms)

    6,488 mt. (14,300 kips)

    Drillfloor/Cantilever Load Maximum CombinedTotal

    1180 mt. (2600 kips)

    - Consisting of any proportion of the following:Hook 907 mt. (2000 kips)Rotary 907 mt. (2000 kips)Set Back 431 mt. (950 kips)

    Conductor Tensioner 408 mt. (900 kips)Skimmer Tank Load 58 mt. (127 kips)

    Maximum Combined Load when CantileverSkidding

    431 mt. Setback + 508 mt. Cantilever PipeRack

    Cantilever Pipe Rack Load Total 508 mt.

    Maximum Preload Spud Can Reaction 10,662 mt.

    Deck Design Loads

    Main Deck (Inside Pipe Rack) 2.64 mt./m2

    Main Deck (Outside Pipe Rack) 2.08 mt./m2

    Cantilever Deck (Inside Pipe Rack) 2.64 mt./m2

    Cantilever Deck (Outside Pipe Rack) 1.32 mt./m2

    Drill Floor (Working Areas) 1.95 mt./m2

    (Setback Areas) 22.5 mt./m2

    Quarters' Deck 0.46 mt./m2House Tops 0.73 mt./m2Mud Pits 10.25 mt./m2

    Machinery Spaces 1.32 mt./m2Sack Stores 2.64 mt./m

    2

    Sloping Deck over BOP Storage 1.47 mt./m2

    Cantilever Design Loads

    Rotary Position On Centerline 4.57m Off CL P/S

    22.86 m Aft of Transom 1230 mt. 500 mt.

    21.34 m Aft of Transom 1360 mt. 590 mt.

    10.67 m Aft of Transom 1360 mt. 1360 mt.

    The above design cantilever loads are the sum of the following individual loads:

    a) Setback load

    b) Rotary load

    c) Hook load

    d) Conductor Tensioner load

    The above design loads are based on the following data (any changes to weights and centers mayaffect the load chart):

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    BASED ON JOB #032-11 REV.C

    Friede & Goldman, Ltd., Houston, TX USA Rev. 0 8

    Item Weight (mt.) LCG (m fwd. ofrotary

    centerline)

    TCG (m stbdrotary

    centerline)Drill Floor 960 0.1 0.42

    Cantilever/Substructure 1867 15.82 0.07Setback 0 - -

    Cantilever Pipe Rack 0 - -

    Cantilever Design Loads also include Well Control Load of 64 mt., Mud Return Load of 73 mt., &Miscellaneous Loads of 50 mt.

    Note: 1 tonne = 1 mt.

    Cantilever and Drill floor weights are inclusive of structure, paint, outfitting and equipment, aslisted elsewhere in this Specification and include mud logging unit, cementing unit and futurecentrifuge units and pumps. During design development these weights shall be carefully

    monitored, and should these weights vary appreciably, the designer is to be promptly notified bythe Builder.

    Operating CapacitiesTo be confirmed by the capacity calculations.

    Tank Total Capacity Units

    Diesel Fuel 4151 bbls 660 mDrill Water 9874 bbls 1570 m

    Fresh Water 3428 bbls 545 mBallast or Preload 84161 bbls 13,382 mBulk Mud and/or Cement 17657 Ft

    3 500 m

    Sack Stores 5000 SacksActive & Reserve Mud Pits 4729 bbls 752 m

    Slugging Pit 150 bbls 23.8 mBrine 1340 bbls 213 m

    Return Pits, Sand Trap, treatment tanks 528 bbls 84 mBase Oil 1340 bbls 213 mTrip Tank (2) 63 bbls 10.0 mStripping Tank 19 bbls 3.0 m

    Skimmer Tank 126 bbls 20 m

    Pipe Rack - Cantilever 453 mPipe Rack Main Deck 241 m

    Design Towing Conditions

    1. Wet TowField Transit

    Allowable Motion

    6 degrees single amplitude roll or pitch at

    the natural period of the unit, plus 120%of the gravity load at that angle of

    inclination.Leg Length Fully Retracted 167 meters

    2. Wet TowOcean TransitAllowable Motion

    15 degrees single amplitude roll or pitchat a 10 second period, plus 120% of the

    gravity moment caused by the angle ofinclination of the legs (ABS)

    Leg Length Fully Retracted 130.5 meters

    3. Dry TowLeg Length 167 metersIt is to be confirmed that the structure of the Vessel is designed for dry tow with propersea fastening.

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    1.6 STABILITY REQUIREMENTS

    The Builder shall prepare and obtain Classification Society approval of the stability calculations. The stabilitycalculations shall be based on the Vessel as delivered and verified by the inclining test of the Vessel. Stabilitycalculations shall be included in the Operations Manual covering the operating conditions of the Vessel as specifiedin sub-paragraph 1.14 of this Section of the Specification. The location of air escapes, ventilation openings, hatches,

    and personnel accesses shall be as shown on the Contract Plans.

    1.7 MATERIALS AND WORKMANSHIP

    All material, machinery and equipment furnished by the Builder shall be new and of a grade suitable for the service

    intended, and approved by Classification Society and the Owner.

    1.8 CONTRACT PLANS

    All of the Drawings listed below Contract Drawing List are incorporated into and form an integral part of this

    Specification and are hereafter referred to as "Contract Plans, Drawings or Contract Drawings. In the eventthere are conflicts or inconsistencies between the Specification and the Contract Plans, the Specification will prevail.In any event, if the Builder discovers a conflict or an inconsistency between the Specification and any of theContract Plans, he shall bring such conflict or inconsistency to the attention of the Owner who shall promptlyprovide the Builder with a resolution. Under no circumstances shall such resolution cause the Builder to request a

    change order unless the resolution clearly exceeds the intent of the Specification.

    The Specification calls for compliance with Classification Society and other Regulatory Body requirements asdefined in paragraph 1.4. Builder shall modify and supplement the Contract Plans as necessary to meet the fullrequirement of paragraph 1.4 and shall build the Vessel according to such modified and supplemented drawings.

    If Contractor determines that there is a better or simpler way of building any part of the Vessel in a way that doesnot affect the performance of the Vessel or its compliance with any of the regulatory bodies, Contractor shall bepermitted to redesign such part of the rig to provide a better or simpler arrangement, as long as the redesign isapproved by the Designer and the Owner and it meets all Regulatory Body and Classification Society requirementsand does not result in a lightship weight increase.

    All sizes, dimensions, quantities and descriptions shown on the Contract Plans are given for the purpose of guiding

    the Builder in developing the detail design and working drawings. The Builder shall develop his own measurementsand shall not scale from the Contract Plans. However, no departure from principal characteristics, basicarrangements and major dimensions will be allowed. While it is recognized that exact adherence to structuralarrangements, machinery layout, etc., is not always fully possible in progressing from the Contract Plans to the

    detailed design and working drawings, any deviations made by the Builder shall be kept to an absolute minimumand be subject to the Owner's prior written approval. Deviations permitted for the Builder's convenience shall beconsidered a development of the Contract Plans and Specifications, and not as a basis of "change orders" or "extrawork". All such changes or deviations including weight increase or decrease shall be noted in written formaccompanying the submittal of the working plan for Owner's approval.

    The Contract Plans which form a part of these Specifications are as follows:

    Project Documentation

    Document No. Title

    SP-7811-001 Construction SpecificationWE-7811-001 Preconstruction Weight Estimate

    Arrangement Drawings

    Document No. Title

    7811-J-001 General Arrangement - Outboard Profile

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    7811-J-010 Inner Bottom Tank Arrangement7811-J-011 General Arrangement - Machinery Deck 1830 ABL7811-J-012 General Arrangement - Machinery Deck 5640 ABL7811-J-013-1 General Arrangement - Top Deck Plan

    7811-J-013-2 General Arrangement - Main Deck7811-J-014 General Arrangement - Drill Floor and Cantilever Beam Pipe Rack

    7811-J-015 General Arrangement - Cantilever Beam Cellar Deck and Mud Processing Area7811-J-016 Primary Structure Plan7811-J-020 General Arrangement Quarters7811-J-030 Lines Plan

    7811-J-034 Cathodic Protection Arrangement7811-J-035 Load line Mark & Draft Plan7811-J-040 Capacity and Deck Load Plan7811-J-041 External Watertight Integrity Plan7811-J-042 Internal Watertight Integrity Plan

    7811-J-092 Leg and Jack Tower Tolerance Plan7811-J-093 Cantilever Beam Tolerance Plan7811-J-099 F&G Standard Symbols and Drawing Aids7811-J-600 Jacking Foundation & Rack Chock Arrangement

    Global Scantling Drawings

    Document No. Title

    7811-J-100-1 Scantling Plan - Main Deck7811-J-100-2 Scantling Plan - 5640 Flat7811-J-100-3 Scantling Plan - Inner Bottom7811-J-100-4 Scantling Plan - Bottom Plating7811-J-101-1 Scantling Plan - Transverse Sections - Frames 2A to 10A

    7811-J-101-2 Scantling Plan - Transverse Sections - Frames 11 to 227811-J-101-3 Scantling Plan - Transverse Sections - Frames 13 to 28, 30, 31 & Side Shell7811-J-102 Scantling Plan - Longitudinal Bulkheads

    7811-J-103 Scantling Plan - Longitudinal Girders7811-J-104 Scantling Plan - Leg Well Modules7811-J-105 Framing Below the Jack Foundation and Lower Guide

    7811-J-106 Dry Tow Strong Boxes7811-J-120 Leg Structure7811-J-121 Spudcan Structure7811-J-122 Racks for JU-2000E7811-J-123 Rack Chord Detail

    7811-J-130 Scantling Plan - Superstructure7811-J-131 Structural Plan - Heliport7811-J-151 Jack Foundation Bracing7811-J-152 Pump Tower and Leg Jetting Piping

    7811-J-620 Jackcase Foundation Structure and Details

    7811-J-621 Jackcase Foundation Machining and Miscellaneous Details

    Equipment Dependent Drawings

    Document No. Title

    7811-J-140 Scantling Plan - Substructure and Cantilever Beams7811-J-141 Drill Floor Structure

    7811-J-142 Cantilever Support, Guides and Securing Arrangement7811-J-143 Cantilever Bearing Plates7811-J-150-1 Crane Foundation - Crane 2 & Details (Stbd Fwd. Crane)7811-J-150-2 Crane Foundation - Crane 1 & Details (Port Aft Crane)7811-J-150-3 Crane Foundation - Crane 3 & Details (Stbd Aft Crane)

    7811-J-156 Conductor Tensioner Platform

    Piping Flow Diagrams

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    Document No. Title

    7811-J-201 Piping Diagram Preload Supply & Dumps

    7811-J-202 Piping Diagram Bilge and Stripping System7811-J-203 Piping Diagram Jetting System

    7811-J-204 Piping Diagram Salt Water Service7811-J-210 Piping Diagram Main Engines7811-J-212 Piping Diagram Brake Cooling System7811-J-213 Piping Diagram Fire Fighting System

    7811-J-220 Piping Diagram Fresh Water & Potable Water System7811-J-222 Piping Diagram Drill Water System7811-J-230 Piping Diagram Diesel Oil System7811-J-231 Piping Diagram Lube Oil & Dirty Oil System7811-J-240 Piping Diagram Compressed Air System

    7811-J-241 Piping Diagram Bulk, Barite, Gel & Cement System7811-J-260 Piping Diagram High Pressure Mud & Cement System7811-J-261 Piping Diagram Low Pressure Mud System7811-J-262 Piping Diagram Low Pressure Mud Processing System

    7811-J-265 Piping Diagram Brine & Base Oil System7811-J-282 Piping Diagram Single Point Discharge System

    Electrical One-Line Diagrams

    Document No. Title

    7811-J-301 One Line Diagram of Power System7811-J-302-1 One Line Diagram of 480V Distribution (Main MCC 1)7811-J-302-2 One Line Diagram of 480V Distribution (Main MCC 2)

    7811-J-303 One Line Diagram of 480V Distribution (Drilling MCC's)7811-J-304 One Line Diagram of 480V Distribution (Cantilever Drilling MCC's)7811-J-305 One Line Diagram of 480V/400/230V Distribution (Emergency)

    7811-J-306 One Line Diagram of 690V Distribution (Jacking MCC)7811-J-307 One Line Diagram of 480V Distribution (Ventilation MCC's)7811-J-308 One Line Diagram of 400/230V Distribution (Main)

    7811-J-309 One Line Diagram of 400/230V Distribution (Galley Power Panels)

    1.9 BUILDERS DRAWINGS

    During the detail engineering phase the Builder shall develop his own detailed measurements, prepare and provideall working and construction drawings, shop drawings, sketches and calculations for the approval of the Owner andClassification Society prior to the use of these drawings. The Builder shall also prepare and provide full composite

    layouts and / or isometric drawings (for machinery spaces and accommodation corridors), including piping,electrical cable ways, and ventilation ducts, for review and comment by the Owner. Approval of these drawings by

    the Owner or Classification Society does not relieve the Builder of his responsibility to provide a complete andoperable Vessel in accordance with the requirements of these Specifications. If it is found, after approval of thedrawings by the Owner or Classification Society, that a drawing is in error or is not in compliance with theseSpecifications, the Builder shall correct the drawing and make any changes to the Vessel required to ensurecompliance with the Specifications at no additional cost to the Owner.

    It is to be clearly understood that the Contract Plans are not intended to show all details of the work to be performed.

    In particular the scantling plans, even when already approved by the Classification Society, do not purport to showall structure required for this design. The Builder shall have included in his Contract price the cost of suchadditional steel work as may be required by the Classification Society when working drawings are submitted forapproval and for mutually agreed scantling increases which the Owner may request for Builder-developed structure

    not shown on the Contract Plans.

    1.10 DRAWING APPROVAL

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    The Builder shall provide the Owner, within thirty (30) days after the Contract date, a schedule of detailed workingdrawings to be submitted for approval. The schedule shall list for each drawing the proposed and actual submittaldates, approval dates and revision submittal and approval dates. The schedule shall be brought up to date quarterlyand resubmitted to the Owner.

    The Builder shall submit six (6) copies of all drawings, sketches, diagrams, etc., and calculations developed by him

    to the Owner for approval. The Builder shall simultaneously submit to both Classification Societies as well as toother applicable Regulatory Bodies and agencies all documents required by these organizations to obtain thecertifications listed in Section 1.4. The Builder is responsible for any modifications to the drawings or calculationsrequired by the Classification Societies or Regulatory Bodies or agencies. The requested modifications shall be

    made in a timely manner and shall be resubmitted to all parties including the Owner for approval. The Owner shallnormally approve the drawings within twenty (20) working days after receipt or the Owner shall advise the Builderof discrepancies, which would require revision and re-submittal. For drawings requiring urgent approval, Ownershall return within ten working days. Two (2) copies of all drawings submitted to and returned by the ClassificationSociety will be issued by the Builder to the Owner within ten days of receipt.

    1.11 AS BUILT DRAWINGS

    Upon completion of the construction, the Builder shall provide the Owner and the Designer with one (1) set ofAutoCAD *.dwg files on optical disk and one set of photocopy "as-built" working plans, including tank tables (inbarrels, liters, metric tons, VCG, LCG, TCG, and longitudinal and transverse free surface moment as a function of

    actual sounding height in meters and millimeters), capacity plan, curves of form, stability booklet, all diagrams, andmaterial traceability booklet (construction portfolio) The Designer shall receive one set of AutoCAD *.dwg files onoptical disk and one set of all documentation provided to the Owner.

    The Builder shall further provide the following documentation:The hazardous area equipment registers using the format, supplied by the Owner. One picture for each equipmenttype shall be taken and filed as well as all certificates of the hazardous equipment shall be filed in one commonfolder according to a grid plan, which shall be added to the hazardous area drawings.

    The following studies and calculations shall be provided by the Builder:

    Load analysis in transit, normal drilling, back reaming, emergency mode, including load cases for UPS andchargers.

    Power system study dossier, including short circuit calculations, earth fault calculations, load flow, largemotor inrush voltage drop, transformer inrush voltage drop, cable sizing and selection tables, totalharmonic distortion and battery and cable sizing calculations.

    1.12 OPERATION AND MAINTENANCE MANUALS

    The Builder shall furnish to Owner one copy in Microsoft Word on optical disk and six photocopies of all operationand maintenance manuals and parts lists for all BFE. The Builder shall furnish to the Designer one copy of alldocumentation furnished to the Owner.

    The operation and maintenance manuals shall include information describing; installation, operation, safety,

    maintenance, adjustment, wiring, and parts lists, with suitable illustrations and dimension drawings. The manualshall be formatted and organized according to Owner requirements.

    Builder shall obtain from each vendor of BFE a list of recommended spares for one year's service, compile these

    spares lists in a cross indexed booklet form and present them to the Owner for his subsequent use. This bookletshall be provided to the Owner at least ninety days prior to delivery of the Vessel and notification of any longdelivery spares should be given as soon as possible during the construction of the Vessel.

    All information regarding the as-built condition of the vessel necessary for completion of the operating manual shallbe submitted to the Owner in a timely manner. Schedule of submittal for this information shall be mutually agreedupon between the Builder and the Owner.

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    A software register, identifying all installed support, operating and application software to be provided by theBuilder. For each release of software installed in a system, a back-up and tools for upload/download of updates shallbe provided by the Builder, together with upload/download instructions.

    1.13 PROGRESS SCHEDULE

    The Builder shall, within thirty days after execution of the Contract, prepare and furnish the Owner or hisRepresentative a detailed key event production schedule in the form of a Gantt bar graph based on Microsoft Projectsoftware or another recognized planning program, such as Primavera showing planned construction progress of the

    Vessel. The Builder shall provide a progress report to Owner or his Representative two weeks after Contractexecution. After approval of the production schedule by the Owner or the Representative within ten working daysafter receipt thereof, the production schedule (herein called the "Production Schedule") shall be the basis ofinterpretation of actual construction progress of the Vessel.

    This Production Schedule shall include, but shall not be limited to, the following:

    The schedule shall as a minimum be of a level 3 type with sufficient detail to allow tracking of progress anddetermination of the critical path.

    An erection sequence to show the order in which the construction of the Vessel shall take place. This Schedule shallbe in a form detailing all major activities with time duration of each. The Schedule shall be prepared in sufficientdetail to show all production items including the proposed start and finish dates for hull groups, machinery items,piping systems, electrical items and systems, ventilation and air conditioning systems, and joiner items.

    The schedule shall indicate by milestones identified to be achieved during the construction. The schedule shallinclude planned issue dates for IDC, IFA, AFC and As Built. The final set of drawings shall be: As Built andCommissioned

    A schedule of proposed plans: This schedule shall include all plans to be prepared by the Builder and hissubcontractors.

    A schedule of required dates for material, showing the dates on which all material items, including OFE, arerequired at the shipyard for fabrication, erection or installation.

    A schedule of documentation submittal to Classification Society or Regulatory Bodies.

    A schedule of documentation deliverables to Owner.

    All tasks shall be appropriately linked according to their interdependence, and the Builder shall use the Tracking Ganttfeature of the Microsoft Project software to indicate actual progress against planned activities and to identify the critical

    path for completion.

    Progress reports are to commence thirty (30) days following the date of the Contract signing through completion of the

    Vessel.

    These schedules shall be kept current with the progress of the Work, revised to show all changes, progress (percentage

    complete) and delays, and shall be submitted to the Owner weekly for his information and review. Percentagecomplete shall not be limited to an evaluation of the steel tonnage completed, but shall include evaluations of the statusof items such as engineering and systems installation. As each item on the schedule is completed, it shall be soindicated. Dates of submittals and approvals shall be noted.

    1.14 WEIGHT AND CENTER OF GRAVITY

    Within ninety (90) calendar days after date of award, the Builder shall submit for approval by the Owner anindependently prepared estimate of light ship weight and center of gravity. This estimate shall describe the weight andcenter of gravity of the Vessel in comprehensive detail and shall include summaries and work sheets showing detailed

    calculations.

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    Within thirty days of the receipt of the Builder's estimate of the lightship weight and center of gravity, the Owner shallapprove the estimate. Thereafter, the Builder shall be responsible for monitoring the weight and center of gravitycharacteristics adjusted for authorized departures from the construction contemplated in the approved estimate.

    Departures from the construction contemplated in the approved estimate, which affects the light ship weight, and centerof gravity shall not be undertaken until the Builder has submitted to the Owner his estimate of the effect on weight and

    center of gravity of the Vessel, and obtained written approval to proceed with the departure. Departures, of which thetotal effect changes any weight group by less than 250 kg, may be considered negligible and will not require writtenapproval with respect to weight.

    As an aid to weight, trim and stability control, the Builder shall submit quarterly to the Owner a tabulation of approveddepartures and their cumulative effect on weight and center of gravity of the approved light ship. In addition, insubmitting plans for approval, where such plans involve departures from the type of construction contemplated in designdrawings or the estimate, the Builder shall itemize such departures and their effect on light ship weight and center ofgravity in his letter of transmittal. Where material substitutions are required, Builder shall submit the proposed

    substitutions to the Owner so that the optimum substitution can be chosen

    1.15 PHOTOGRAPHS

    During the construction of the Vessel, the Builder shall make approximately one hundred (100) photographs to identifyprogress of construction, and shall furnish the Owner with one set of these photographs. Upon completion of thefinished Vessel, the Builder shall make approximately two hundred (200) photographs showing exterior and interior

    views as directed and furnish three prints each and the digital copies on optical disk (CD-ROM/DVD) to the Owner andDesigner.

    Photographs shall only be taken by the Builder or the Owner. The public release of any photographs shall be approved

    by the Owner.

    1.16 INSPECTION

    The Vessel is to be built, equipped and delivered under the inspection and subject to the approval of the Owner,

    Classification Society and applicable Regulatory Bodies.

    The Builder shall have a quality control system and inspection force of his own to insure the quality of workmanship andmaterials at the yard and at his vendors plants as necessary. The construction project shall be administered on the basisof an ISO 9000 Quality Management System. Failure on the part of the Builder to provide these safeguards shall notlater be the basis of a claim for delay in delivery if workmanship or design of a vendor is rejected by the Owner. Failureon the part of the Owner to identify substandard quality at a particular time does not relieve the Builder of its

    responsibility to correct this problem when it is discovered. Radiograph inspection shall also be provided in accordancewith Section 2 of these Specifications.

    All material and workmanship shall be subject to inspection by representatives of the Owner at any reasonable timeduring manufacture or construction and at any or all places where such work is carried on.

    The Owner or his representative shall have the authority to reject workmanship or material whenever found defective,not in conformity with good shipbuilding practice, or not in accordance with the requirements of the Plans andSpecifications.

    The Builder and Owner will coordinate the scheduling of inspection personnel to minimize the disruption to both sides

    by giving a minimum of one working day's but not less than twenty-four hours, written notice prior to all inspections.

    The Builder shall furnish, without additional charge, all facilities, including air conditioned furnished offices, heat, light,telephones, drawing tables, stools, desks, chairs, filing cabinets, personal computers with e-mail connections, etc., as

    may be required for the resident project team. Long distance telephone calls, faxes and mailing costs, incurred by theproject team will be paid for by the Owner. Access to yard and office shall be available twenty-four hours a day seven

    days a week.

    1.17 SOURCE OF EQUIPMENT

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    Unless specifically stated to the contrary in this Specification, the Builder shall furnish and install all necessary materials,machinery, equipment, appurtenances, etc., as specified herein for the construction of a complete Vessel.

    Any outfit or equipment which may be OFE for use on the Vessel, upon delivery to the shipyards by Owner at Builder's

    dock, or by truck to his warehouse, shall be stored and preserved until the time of installation by the Builder to preventpilferage, breakage, weather damage, etc., and shall be insured against all risk, and shall be installed and/or delivered

    onboard prior to acceptance of the Vessel. Items of equipment, material and certified drawings to be furnished by theOwner will be delivered free to the Contractor's yard. The Builder shall receive, unload, handle, inspect, preserve and beresponsible for all materials and articles furnished by the Owner under these Specifications, do all uncrating, cleaningnecessitated by wear or exposure after delivery to the Builder, care for the material and store same in a suitable manner

    after Owner's inspection, including warehousing where usual, until such time as required by installation on board theVessel. All OFE shall be segregated from any Builder or other Owner equipment and its location ID shelf, spare numberidentified. The OFE should then not be moved from this location without prior notice to, and approval by the Owner

    The Builder, upon delivery by Owner, shall inspect OFE and endeavor to determine that no shipping damage, shortages

    or obvious defects exist prior to the acceptance of such items. The Builder shall immediately notify the Owner in writingshould any such damage or defect be found. Thereafter any damages, shortages shall be rectified/replaced at the builderscost.

    Copies of all material receiving sheets whether OFE or BFE, shall be transmitted to Owner's representative withintwenty-four hours of receiving the material. Receiving sheet shall denote item, manufacturer, model, type, serial

    number, and other name plate data, including area where stored, and whether anti-condensation heaters have beeninstalled where necessary. Copies shall be in triplicate.

    All OFE material must be of a usable quality suitable for the service intended and will be subject to inspection by theBuilder. Material found to be unsuitable shall be rejected in writing.

    It shall be the responsibility of the Builder to provide suitable 3-conductor cords and plugs to meet regulations forgrounding the portable electrical appliances and to suit the receptacles provided. Electrical/mechanical equipment shallbe protected by use of heat lamps and/or supplying electrical source for equipment heaters according to manufacturersrecommendations.

    The Builder shall then assemble, fit and install the items in their proper locations in a satisfactory manner, ready for use,and shall deliver them with the completed Vessel in a condition at least equal to that in which they were found at thetime of the Owner's inspection approval. All work of installation, assembling, fitting, fastening, wiring, piping and allconnections pertaining thereto shall be performed by the Builder as part of the Contract at no additional cost to the

    Owner.

    In the case of articles or materials supplied by the Owner, the Builder shall follow the manufacturer's installationinstructions, unless they do not specifically apply to the installation, at which time the Builder shall notify the Ownerwho will furnish appropriate instructions. The Builder shall not be relieved of his responsibility in the event of faulty orincorrect installation and securing on the Vessel of such equipment or apparatus.

    Unless otherwise specified herein, the Owner will furnish all of the drilling and allied equipment, tools, hotel outfit(cutlery, napery, bedding and chinaware, etc.), radio, and communication equipment, etc., to the extent listed in Sections

    17 and 18.

    1.18 SUBSTITUTIONS

    Where materials, fittings or equipment are specified herein by vendor or trade name, it is the intent that such product befurnished and installed by the Builder. Where the terms "or equal" or "similar to" are used herein in conjunction withsuch vendor or trade name, the Builder may propose articles substantially similar in design, quality and constructionproduced by reputable manufacturers other than those indicated, but such proposed substitutions shall be submitted to the

    Owner for written approval, with reasons for substitution and complete description and specification of the article. Itshall be understood that any proposed substitution shall not be grounds for delay of delivery or increase of cost exceptwhere specifically stated in the proposal and as agreed thereupon in writing by the Owner. Owner's written decisionregarding the acceptability or otherwise of any substitution shall be final, and such decision shall be given to Builder

    within ten days. Substitution will not be allowed among other reasons if, in the opinion of the Owner, spare parts for theproposed equipment are not readily available on an international basis.

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    1.19 TRIALS, TESTING AND CLEANING

    All in place trials and testing shall be in accordance with Section 16 herein. Cleaning and testing of all piping systemsshall be in accordance and with the standards set forth in Section 13. The cleaning and chlorination of potable watertanks and system shall be in accordance with Regulatory Requirements. At time of delivery all tanks shall be empty,clean and free from all foreign material, except those tanks containing clean fuel, lube oil and fresh water.

    1.20 SPECIFICATION AND PLAN OWNERSHIP

    The Specifications and Contract Plans, which have been developed by the Designer are the Designers property. Noalterations shall be made to any of the above listed Contract documents without the written consent of the Ownerand Designer, except for alterations made according to the provisions of paragraph 1.8 of this Specification. The

    reuse of the design, Specifications, and the Contract Plans are subject to the express consent of their respective ownersexcept as follows:

    In addition to any Classification Society requirements, the Builder shall provide the Owner with copies of the as-builtplans for the Vessel as per paragraph 1.11 of this Specification, which the Owner may use as they see fit.

    Any further development of the Specifications by the Owner shall be their property. Likewise, any further developmentof the Construction Plans for this vessel shall be the property of the Builder.

    If either the Builder or the Owner provides any other party with all or any part of the design, Plans, or Specifications,they shall require such other party to treat the information contained therein as confidential.

    1.21 OWNER FURNISHED EQUIPMENT (OFE)

    All material and equipment furnished by the Owner shall be to the extent as listed in Section 18.

    1.22 CONSTRUCTION PORTFOLIO

    A booklet of pertinent documentation shall be compiled by the Builder, reviewed and approved by the ClassificationSociety (through Builder) and presented to the Owner upon delivery of the Vessel or as soon as possible thereafter. Asample booklet shall be prepared and submitted to the Owner along with a procedure for obtaining the documentationwithin ninety days of Contract date.

    The booklet shall contain the following:

    a) Key plans showing locations and grades of steel material.

    b) List of piping and fitting materials for all applications.

    c) List of structural drawings.

    d) Welding procedures, specifications for all materials, and procedure qualification records.

    e) Non-Destructive Testing (NDT) Plan.

    f) NDT record of Vessel during construction.

    g) Recommendation for repair procedures.

    h) Mill certificates on all high strength and special application materials with a record of where allsuch identified materials are to be found in the completed Vessel.

    i) Full certification for all BFE equipment.

    j) Comprehensive list of all pad eyes and their capacities.

    Those items of special steel, piping and fittings included in lists shall include trade names, ASTM (or equivalent)specifications, chemical composition, and physical properties, as well as any pertinent data, modifications, etc., that may

    be required when ordering replacement parts or materials.

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    1.22 NOISE AND VIBRATION

    Noise levels to comply with criteria as noted below.

    Area dB (A) IMO dB (A) ABS

    WorkspacesMachinery spaces (continuously manned)** 90 85

    Machinery spaces (not continuously manned)** 110 108

    Machinery control rooms 75 65

    Workshops 85 80

    Non-specified work spaces ** 90 80

    Navigation spaces

    Navigating bridge and chartrooms 65 55

    Listening post, including navigating bridges*wings and windows

    70 55

    Radio rooms (with radio eq. operating but not

    producing audio signals)

    60 55

    Radar rooms 65 55

    Accommodation spacesCabins and hospitals 60 50

    Mess rooms 65 55

    Recreation rooms 65 60

    Open recreation areas 75 65

    Offices 65 60

    Services spaces

    Galley, without food processing equipment 75 70

    Serveries and pantries 75 70

    Normally unoccupied spaces

    Spaces not specified ** 90 108

    *Reference is made to Resolution A. 343(IX) which also applies.

    **Ear protectors should be worn when the noise level is above 85 dB (A)

    The vibration levels shall comply with ISO/ABS

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    TABLE OF CONTENTS

    SECTION 2.0 - STEEL STRUCTURE .......................................................................................................... 2

    2.1 CONSTRUCTION ......................................................................................................................... 2

    2.2 HULL ............................................................................................................................................. 2

    2.3 LEGS .............................................................................................................................................. 2

    2.4 LEG GUIDE STRUCTURE ........................................................................................................... 2

    2.5 SUPERSTRUCTURES AND HELIPORT .................................................................................... 3

    2.6 DRILL FLOOR, SUBSTRUCTURE, AND CANTILEVER ......................................................... 4

    2.7 BURNER BOOMS ......................................................................................................................... 6

    2.8 BUILT-IN TANKS......................................................................................................................... 6

    2.9 SEA CHEST ................................................................................................................................... 6

    2.10 WELDING ..................................................................................................................................... 7

    2.11 FOUNDATIONS ............................................................................................................................ 8

    2.12 DERRICK....................................................................................................................................... 8

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    SECTION 2.0 - STEEL STRUCTURE

    2.1 CONSTRUCTION

    Workmanship shall be of good marine standard and meet the requirements of the Classification Society, the

    Regulatory Bodies and the Builder's standards. Plating shall be erected reasonably fair. Beams, frames, girders,etc., shall be installed fair and in proper alignment in accordance with regulatory and classification society standardslisted in Section 1. Bulkheads and decks shall be erected reasonably fair to provide a good appearance and preventthe collection of water. Fairness shall generally be in accordance with regulatory and classification societystandards listed in Section 1. Openings and doubler and insert plates shall have well-rounded corners with ampleradii. During the outfitting of the Vessel, care shall be taken to keep the size and number of openings made in the

    structure for the passage of piping, wiring, ventilation ducts, etc., to a minimum. Where openings are required, theyshall be carefully made, and the openings structurally reinforced where required according to construction standardsdeveloped by the Builder and approved by the Owner and Classification Society. Openings, permanent ortemporary, in the primary structure shall be approved by the Owner and the Classification Society.

    2.2 HULL

    The hull material shall be as shown on the Contract Plans and selected for a Minimum Design Temperature (MDT)of -20 C.

    Each tank required by the Classification Society to be hydrostatically tested shall be individually tested by anapproved procedure (air and water) and proven tight.

    The configuration of the hull shall be constructed with a flat bottom profile. There shall be no bilge radius on the

    hull. All connections between the side shell and bottom plate will be by fabricated plate intersection (squarecorners). Adequate structure and/or reinforcement shall be provided in way of chocks, towing pads, and recessedstrongboxes along the transom for dry transport sea fastening, etc., as required. The stern strong boxes, allcombined, shall be designed to react a transverse load of 7,000 mt. and a longitudinal load of 5,000 mt.

    All structure shall be designed to be within the normal Classification Society and Regulatory Body stress levels, but

    in any event shall not have scantlings less than indicated on the Contract Plans, except where specifically approvedby the Owner and Designer.

    Deck structure shall be designed for the deck loading specified in these Specifications and as shown on the Contract

    Plans. Concentrated loads such as foundations, depending on the framing method used, may require changes in thebasic scantlings, in which case the changes shall be considered as a development of the design and not an extra.

    The crane foundation locations are shown on the Contract Plans. The Builder shall provide foundations for thespecific cranes selected by Owner. Crane boom cradle supports with layered timber shall be provided by the Builderfor each of the cranes and a means of securing the booms during transit.

    Centerline, port, and starboard main deck pipe rack structures will be provided for racking of drill pipe and/orcasing. The details of the pipe racks shall be as shown on the Contract Plans. Easily removable pipe stanchions (with

    lifting attachments), and sockets shall be provided to subdivide the pipe rack into bays, and a tie-down system shallbe provided for securing tubulars while afloat. All main deck pipe rack areas outside the envelope of the cantilever

    shall have permanent bulkheads at the forward end.

    2.3 LEGS

    Legs shall be as defined in the Contract Plans and Section 6 of these Specifications.

    2.4 LEG GUIDE STRUCTURE

    The leg guide structure shall be constructed as shown on the Contract Plans. The Builder shall align guides in thehull with those of the jack case to insure proper operation of the jacking system. The construction tolerances

    considered critical are as follows:

    Pinion/Rack - The placement of the guides should be such that a contact ratio in excess of one is obtainable at allpositions of the chord within the guides or as approved by the Classification Society and Designer.

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    The legs must be manufactured within a tolerance that allows free movement of the legs through the guides aspositioned to satisfy the pinion/rack alignment described above.

    The Builder shall propose a procedure for both installing the jack houses and verifying pinion and guide placementthat is to the satisfaction of the Owner, the Designer and the Classification Society.

    2.5 SUPERSTRUCTURES AND HELIPORT

    The forward superstructure houses all of the accommodation and shall have size, shape and scantlings as shown onthe Contract Plans. Headers shall be provided below the main deck for carrying the above deck structures loads intothe hull structure.

    A truss structure forward of the bow leg supports the helicopter deck and the lifeboat davits below the helideck. Thehelicopter platform shall be designed in accordance with Classification Society and Regulatory Bodies rules for aSikorsky S-92 (gross weight of 12 mt.) or S-61N (gross weight of 9.3 mt). The edges of the deck around theheliport shall be fitted with a 1.52 m wide safety net consisting of chain link type, galvanized or PVC coated, wirefencing supported by a 32 mm galvanized pipe framework. The netting shall be securely lashed with stainless steel

    wire to the pipe frame to develop the strength of the netting and eliminate unsightly drooping of the netting

    (excluding the net across the flats).

    The hull shall be reinforced where the helicopter deck and lifeboat davit supports connect into the hull.

    The helicopter deck shall be equipped with a landing net suitably tensioned to meet CAP 437, IMO and

    Classification Society requirements.

    The helicopter deck shall be equipped with three equal distant placed exits, one of which exits from the outer edgeof the deck, complete with vertical ladders and safety railings. Each exit is to have an adjacent manually operatedfoam monitor and a storage facility for emergency equipment.

    A periphery drain gutter system with at least three 100 mm (4) diameter drain pipe shall be provided. Sufficientnumber of self-draining recessed helicopter tie down pads shall be provided. The helideck is to be completely

    liquid tight. The drainage collection manifold shall allow single point collection of fluids into a container or directoverboard discharge.

    The helideck height above main deck shall be such that all structure, deck plating, safety netting, life boats, andperipheral walkways and equipment will not dip into the sea under the maximum field move pitch / roll angle of theVessel. This angle shall be to the satisfaction of the Classification Society.

    All superstructures shall be hose tested and proven tight as per Regulatory Body requirements.

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    2.6 DRILL FLOOR, SUBSTRUCTURE, AND CANTILEVER

    The drill floor, substructure and cantilever shall be provided generally as called for on the Contract Plans; however,the final arrangements shall be based on the drilling equipment selected by the Owner. The Builder shall verify all

    equipment dimensions and local loadings and determine whether or not they are within the allowable loads shownon the Contract Plans. The Builder shall bring to the Owners attention any major discrepancies. The Builder shall

    be responsible for monitoring the final weights, details and adequacy of the deck structure for drill floor /substructure / cantilever.

    The drill floor shall be moved athwartship on the substructure using a hydraulically operated lift and roll system and

    shall be capable of being positioned at any rotary well center location 4.6 m port or starboard of the hull centerline.Guides shall be provided to keep the drill floor properly positioned on the substructure transverse skid rails.Movable clamps shall ride with the drill floor to secure the drill floor to the substructure in any location.

    The cantilever shall slide fore and aft on the main deck using a hydraulically operated skidding system. The

    Cantilever shall be capable of being secured by the skidding system in any position.

    The forward cantilever hold down clamp and the stern roller support structure are to be designed and located so as toprovide the maximum live drilling loads given in Section 1.5.

    The drill floor shall support the following and other BFE or OFE equipment, as listed in Sections 17 and 18 of the

    Specification, installed on the drill floor, including but not limited to the following:

    ITEM Description

    a) Derrick

    b) Drawworks, including motors and brakes incl. ventilation and cooling.

    c) Rotary table

    d) Setback area

    e) Drawworks house and Wind Walls

    f) Dead line anchor

    g) Top Drive System

    h) Manifolds (C&K, Cement, Mud, Cement Wash down)

    i) Iron Roughneck

    j) Casing Roughneck

    k) SPHS

    l) Hydraulic Power Unit

    m) Mud Gas Separator

    n) Drillers House, including instrumentation and equipment control packages

    o) Brake Water Cooling Package

    p) PLC room

    q)

    BOP Control Panels

    r) Air Hoists

    s) LIR and LER, Local Instrument and Local Electric Rooms

    t) Mouse Hole

    u) Auxiliary Mouse Hole

    v) Tong Posts

    w) Derrick Lighting

    x) Powered Wire Line Reel

    y) Wire Line Measuring Unit

    z) Choke Manifold Control Panels

    aa)

    Rig Floor Hydraulic Manifoldbb) Compressed Air Receiver

    cc) Diverter Control Panel / Manifold

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    dd) Hydraulic Cathead

    ee) Diverter with Hydraulic Ball Valves

    ff) Secondary Conductor Tensioning Cylinders

    gg) Workbench, lockers, etc.

    hh) Casing Stabbing Basket

    The drill floor in the areas indicated on the Contract Plans shall be strong enough to withstand the impact of a 27.4m stand of 241.3 mm drill collars (90 ft. stand of 9 drill collars) dropped from a height of 1.0 meter. There shall beprovided impact resistant sub-flooring beneath the drill floor as required withstanding such impact. The setbackarea shall have two (2) 75 mm layer of hardwood decking. This decking is built up in two layers, set apart 90 andlined with bitumen in between the layers of hardwood.

    Beneath the drill floor a system of access gratings, ladders, rails, etc., shall be provided for access to brake water-cooling system, air receiver, mud return system, diverter and other equipment. A 6 mm thick drain pan shall beprovided beneath the drawworks and rotary to collect all pollutants and direct them down to the skimmer tank.

    The drill floor shall be provided with a system of gutters, drains and deluge system as called for in Section 14.

    The drill floor shall be provided with a wind wall, complete with sliding doors, a drawworks shed and a wind wall atthe monkey board level. The Builder shall develop, subject to Owner approval, the structure for these using thedesign criteria set forth in the specification to meet the requirements of the Regulatory Bodies. The weight of these

    structures shall be held to a minimum; therefore, the construction need not be similar to that of the superstructure.Top of drawworks house to have minimum slope, design for 0.24 mt./m

    2loading and shall be fitted with hand rails.

    Composite materials shall be used for wind walls, etc. wherever allowed by the Regulatory Bodies and theClassification Society. Access shall be provided, either by walkways at the aft end of the drill floor or removablepanels on the aft side of the wind walls, to allow a rig mover a clear view to the stern of the Vessel.

    There shall be a unitized, enclosed, air-conditioned driller's house installed on the drill floor. The house shall fullyenclose all driller's instrumentation and controls for all the drill floor machinery and systems, pipe handling

    system(s), and other operational panels and alarms.

    There shall be installed in the derrick a pipe racking system that facilitates racking of pipe on the drill floor, a TopDrive drilling system, a TDS parking system, and a casing stabbing basket, including all of the associatedmechanical, electrical, hydraulic, and ventilation systems.

    The cantilever substructure shall support the following equipment or as otherwise indicated in Sections 17 and 18,including but not limited to:

    a) BOP Handler, Service Bridge Crane and BOP Horizontal Restraint System (HRS) Winches.

    b) BOP(s)

    c) BOP test unit

    d) Primary Conductor Pipe Tensioning Support Cylinders, accumulators and Control System(CTU)

    e)

    Conductor Tensioner Platform (CTP)

    f) CTP Support Brackets

    g) Movable CTP Walkways

    h) Trip and Strip Tanks and Pumps

    i) BOP Carts

    j) Scalper Shakers

    k) Drill floor and All Machinery

    l) Mud Processing Equipment and Tanks

    m) Mud Lab and Test Equipment

    n) BOP Closing Unit and Bottle Storage Racks

    o)

    Cementing Package

    p) Simultaneous Pipe Handling System (SPHS)

    q) Skimmer Tank

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    r) Electric Equipment Room

    s) Centrifuges and Pumps

    t) Mud Logging Unit

    u) Hydraulic Power Unit

    A system to support and handle the BOPs shall be installed consisting of a 125 Ton Bridge Crane, which travels ontrolley beams running longitudinally beneath the drill floor. Builder shall install four manually operated BOPstabilizer winches (14,000 lb. capacity) and fairleads.

    Removable test/assembly stumps for BOP stack(s) shall be installed on provided storage cart(s). The storage cartsshall be movable fore and aft from test/assembly area to staging area, using a hydraulic skidding system. Above theBOP test / assembly area a single 35 mt. Service Bridge Crane with two (2) 17.5 mt. trolleys shall be installed thattravels on trolley beams running transversely across the full width of the storage area.

    The BOP closing unit shall be installed under the elevated pipe rack within the forward end of the cantilever

    structure main and mezzanine decks. All necessary piping and fittings will be furnished by the Builder to locate fullfunction control panels at the unit, on the drill floor, in the toolpusher's office, and on the main deck.

    The third party cementing package with batch mixing plant, lquid additive tanks, etc. shall be installed under thecantilever pipe rack deck within the forward end of the cantilever structure. The installation shall include all service

    piping to and discharge or drain piping from the cementation package as well as any instrumentation, electrical orotherwise, control cables, electric power, communication, alarm, lighting, etc. systems. The area surrounding thecementing engine package shall be classed A-60.

    A pipe rack structure, approximately 30.5 m long x 18.3 m wide will be provided atop the cantilever beams withtransverse pipe rack beams and removable pinned socket type stanchions.

    The details of the pipe rack shall be as shown on the Contract Plans. Easily removable pipe stanchions (with liftingattachments), and sockets shall be provided to subdivide the pipe rack into bays, and a tie-down system shall beprovided for securing tubulars while afloat. Hatches shall be installed in the pipe rack to provide access for theremoval of cuttings.

    The elevated pipe rack will be outfitted with a drain system as provided in Section 14.

    2.7 BURNER BOOMS

    See Section 3.27

    2.8 BUILT-IN TANKS

    Built-in tanks shall be provided where shown to accommodate fresh water, fuel oil, lube oil, waste oil, base oil,

    mud, contaminated drains, etc., as required. Mud pits shall be covered and ventilated according to the ContractPlans.

    All inner bottom voids, preload, brine and drill water tanks shall be fitted with approved docking plugs. Each plug

    shall be accessible from inside the tank. The locations of the plugs shall consistently be adjacent to the tank accessladder landing. The design of the plug shall incorporate a cross bar to allow the plug to be struck with a hammer toloosen and remove it. The threaded portion of the plugs shall be generously lubricated with Never-Seize.

    Where fittings are required during construction for erecting scaffolding, they shall be designed and arranged so thatthey can be left installed to facilitate support of scaffolding for future repairs, maintenance or inspection.

    2.9 SEA CHEST

    Sea chests shall be provided with zinc anodes. The shell plating shall have heavy inserts in way of sea chests tocompensate for the openings and all sides of the sea chests shall have a plate thickness equal to the shell thickness. Allsea chests shall be fitted with strainer plates of 16 mm stainless steel with 25 mm diameter holes on 38 mm centers.

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    Strainers shall be attached with 316 stainless steel bolts and nuts so that the latter is flush with the shell. The free areathrough the strainer shall be at least twice that of the combined cross sectional area of the connections.

    Air flushing of the sea chest is to be provided. Valves shall be located as close as possible to the shell. All bolting shallbe 316 stainless steel.

    Two sea chests to be provided in the bottom plate of the hull. Locations shall be shown on the Contract Drawings.

    2.10 WELDING

    All welding shall be subject to rigid inspection and approval of the Owner, his authorized representatives and the

    Classification Society. Builders welding inspectors (direct employees or subcontractors) shall be currentlyqualified as ASNT-TC1A Level II for the NDT processes, which they are performing. All NDT processes are to beperformed according to approved written procedures. All NDT equipment shall have current calibrationcertification where applicable. Builders welding inspectors performing visual inspection shall be currently

    qualified according to the requirements of AWS D1.1 or as required by the Classification Society.

    All welds shall be shown on the working drawings using standard industry symbols and call outs. All welding

    processes, including repair processes, shall be documented by written procedures (WPS). All WPS shall bequalified (PQR) according to AWS, ANSI/ASME, and the Classification Society. All of Builders welders (direct

    employees or subcontractors) shall be qualified (WQR) to the qualified welding processes they are using.

    All welds shall be 100% visually inspected, and NDT inspected according to industry standards and ClassificationSociety requirements as detailed below.

    Industrial radiographic sequences shall be prepared and submitted to the Owner and the Classification Society.

    Radiographs shall be as per Classification Society requirement. The minimum extent of this inspection shall be asfollows:

    Hull structure weldments shall be non-destructively tested in accordance with the requirements ofthe Classification Society and the Regulatory Bodies.

    All welds at the attachment of jacks, chock supports, cantilever hold down clamps, supportingstructure, and connecting primary bulkheads shall be tested 100 % by Radiographic Testing (RT)or Ultrasonic Testing (UT) as accepted by the Owner, the Classification Society and theRegulatory Bodies.

    All welds in the crane support structures and their attachments to the hull shall be tested 100 % byRT or UT as accepted by the Owner, the Classification Society and the Regulatory Bodies.

    Welding inspection of the legs is covered in Section 6 of this specification.

    The Owner will be allowed 100 additional RT random shots to be taken at locations as directed inthe hull, substructure, foundations, etc. For each rejected X-ray, two additional X-rays shall beprovided at no additional cost to the Owner.

    Should visual inspection show that thickness, surface contour, or appearance of continuity of any strength weld is not in

    accordance with the applicable approved working drawing or should radiographic, magnetic particle or ultrasonicexamination and testing of any weld indicate defect of an unacceptable nature as determined by standards of theClassification Society, the weld shall be carefully cut out over the full extent of the defect, re-welded, and the quality ofthe final re-weld determined by similar methods of inspection at Builder's expense.

    All welds shall have adequate penetration and shall be reasonably free from undercutting. A maximum of 3 mm

    reinforcement will be allowed on butt welds.

    Intermittent welding of scantlings is not allowed. The welding of all beams, brackets, stiffeners, etc., above or below

    deck shall be continuously welded on both sides of the member to seal the faying surfaces and prevent corrosion.

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    2.11 FOUNDATIONS

    General

    It shall explicitly be the responsibility of the Builder to design and provide all needed foundations plus under deck

    support for proper distribution of loads into the structure for all machinery, equipment, structures and outfitting as shown

    on the Drawings or listed in Specifications, whether OFE or BFE. The Builder shall submit plans of all equipmentfoundations to Owner and the Classification Society for their approval and comments, before commencing construction.

    Layouts of the individual pieces of equipment shown on the Contract Plans are meant for general guidance and aresubject to relocation by the Owner and the Builder to suit local conditions and/or operational requirements. Relocationof equipment by the Builder must be approved by the Owner. Relocation of equipment by the Owner, which causes an

    impact on cost or schedule, must be negotiated with the Builder. Minor relocation of individual equipment afterdiscussion and before construction should not be considered as causing impact on cost and schedule.

    Vibration and Deflections

    Special attention shall be given to providing sufficient rigidity of the foundation support structure, and to the cushioning

    and restraint of piping, machinery or equipment, so as to minimize or otherwise control vibrations and consequenttransmission of noise and/or vibrations through the Vessel's structure to acceptable levels. Particular attention shall alsobe paid to limiting any relative deflections of foundations to insure positive alignments are maintained on machinery andto avoid any damaging effects on bearings, etc.

    Foundation Design

    Foundations shall be designed to act as complete supports, against all loading conditions, independent of the casing,

    frame bed plate, or other part of the supported panels, equipment, or machinery and in accordance with manufacturersrecommendations. Equipment furnished on oil field skids may be mounted on deck pads with under deck chocking atstructural intersection with the specific approval of the Owner. Foundations shall be designed to preclude developmentof thermal stresses in either the foundation or in supported heat producing equipment.

    Foundations for equipment shall be designed for a combined static and dynamic load of 1.5 G vertical and 0.5 Ghorizontal for roll and pitch.

    Changes to Owner Furnished Equipment

    Where Contract Plans show details of some foundations, it is to be understood that they are indicated for Builder'sguidance at bid stage as to the general principles of design and to show the minimum standard of strength expected for

    an assumed typical make of the equipment involved. The actual foundations in all details to suit the final selectedequipment in each case, shall remain within the Builder's scope of design and supply, and shall be subject to Owner'sreview and approval as already noted in this Section. The Owner may also change the manufacturer of any equipmentspecified in these Specifications and substitute a unit of similar size and weight without incurring any extra costs ordelays, if this is done prior to issuing certified drawings to shipyard for foundations or within ninety days of the contractdate, whichever is later. Any equipment change, which causes an increase in installation cost or schedule, shall be

    negotiated by the Owner and the Builder.

    2.12 DERRICK

    The Derrick Vendor shall provide derrick builders to assemble the derrick and supervise its installation on board theVessel. The Builder shall provide cranes (with operators, riggers, etc.) and services necessary to assist with assemblyand installation.

    The Builder is to outfit the derrick per the Specifications, including miscellaneous structure, lighting, piping, etc.

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    BASED ON JOB #032-11 REV. C

    TABLE OF CONTENTS

    SECTION 3.0 - HULL FITTINGS AND ACCESS ....................................................................... 1

    3.1 GENERAL ................................................................................................................................... 1

    3.2 WATERTIGHT DOORS .......................................................................................................... 1

    3.3 WEATHER TIGHT DOORS .................................................................................................... 1

    3.4 NON-TIGHT DOORS ............................................................................................................... 1

    3.5 WIRE MESH DOORS ............................................................................................................... 1

    3.6 GAS-TIGHT DOORS ................................................................................................................ 2

    3.7 JOINER DOORS ........................................................................................................................ 2

    3.8 MANHOLES ............................................................................................................................... 2

    3.9 HATCHES ................................................................................................................................... 2

    3.10 LADDERS AND STAIRWAYS .............................................................................................. 3

    3.11 RAILS .......................................................................................................................................... 3

    3.12 WINDOWS ................................................................................................................................. 4

    3.13 DECK FITTINGS ....................................................................................................................... 4

    3.14 GRATINGS AND FLOOR PLATES..........................................