offshore classification projects

RECOMMENDED PRACTICE

The electronic

DNV-RP-A205

Offshore Classification Projects - Testing and Commissioning

MARCH 2012

DET NORSKE VERITAS AS

pdf version of this document found through http://www.dnv.com is the officially binding version

FOREWORD

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

DNV service documents consist of among others the following types of documents:— Service Specifications. Procedual requirements.— Standards. Technical requirements.— Recommended Practices. Guidance.

The Standards and Recommended Practices are offered within the following areas:A) Qualification, Quality and Safety MethodologyB) Materials TechnologyC) StructuresD) SystemsE) Special FacilitiesF) Pipelines and RisersG) Asset OperationH) Marine OperationsJ) Cleaner Energy

O) Subsea Systems

© Det Norske Veritas AS March 2012

Any comments may be sent by e-mail to [email protected]

This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this document, and is believed to reflect the best ofcontemporary technology. The use of this document by others than DNV is at the user's sole risk. DNV does not accept any liability or responsibility for loss or damages resulting fromany use of this document.

Recommended Practice DNV-RP-A205, March 2012Changes –

CHANGES

General

This is a new document.


Recommended Practice DNV-RP-A205, March 2012Contents –

CONTENTS

1. Introduction............................................................................................................................................ 51.1 Preamble ...................................................................................................................................................51.2 General......................................................................................................................................................51.3 Objective ...................................................................................................................................................51.4 Scope and Application ..............................................................................................................................51.5 Structure of this document ........................................................................................................................51.6 How to use this document.........................................................................................................................51.7 References.................................................................................................................................................51.8 Abbreviations............................................................................................................................................62. Commissioning Process and Definition of Various Stages................................................................. 72.1 Detailed design..........................................................................................................................................72.2 Mechanical Completion ............................................................................................................................73. Pre-commissioning................................................................................................................................. 83.1 Commissioning .........................................................................................................................................83.2 Integration testing .....................................................................................................................................83.3 Marine sea trial .........................................................................................................................................93.4 Delivery.....................................................................................................................................................93.5 Hook up.....................................................................................................................................................93.6 Operation...................................................................................................................................................94. Commissioning Procedures................................................................................................................... 95. DNV Involvement in Commissioning................................................................................................. 11Appendix A. DNV Typical Survey Categorization for Drillships during Mechanical Completion and Commissioning of Marine and Drilling Systems ................................................................................. 12

Appendix B. DNV Typical Survey Categorization for Semi-submersible Units during Mechanical Completion and Commissioning of Marine and Drilling Systems ........................................................... 16

Appendix C. DNV Typical Survey Categorization for “Jack-up” Units during Mechanical Completion and Commissioning of Marine and Drilling Systems ........................................................... 20

Appendix D. DNV Typical Survey Categorization for FPSO Units during Mechanical Completion and Commissioning of Marine and Production Systems ...................................................... 24

Appendix E. DNV Typical Survey Categorization for FSO Units during Mechanical Completion and Commissioning of Marine and Production Systems....................................................... 25

Appendix F.DNV Requirements Related to Marine, Utility and Safety Systems ................................... 26

Appendix G. Survey Scope for Specific Class Notations ............................................................................ 52


Recommended Practice DNV-RP-A205, March 2012Sec.1. Introduction –

1. Introduction

1.1 PreambleThis Recommended Practice (RP) outlines the general best practices that lead to effective testing andcommissioning of marine and industrial systems onboard mobile offshore units in newbuilding projects. Forconvenience, an extract of all DNV rules related to testing and commissioning of marine and industrial systemshave been included in this document. It should be noted that for more accurate applicable statutory and classrequirements related to testing and commissioning, applicable versions of the statutory and class rules asspecified in the contract shall be referred to. System categorizations included in the appendix are general innature and may not include all applicable systems that are specific to particular newbuilding projects and so,this document should be used only as a guide. This document currently includes requirements related to drillingunits with the intention to include requirements related to other object types at a later stage.

1.2 GeneralDNV has recognized that the technical complexity of modern Offshore Installations is increasing due tosystems becoming more complex, more automated and more tightly integrated. This evolution providesdesigners, shipyards, owners and other involved parties challenges in the management of testing andcommissioning equipment and systems onboard offshore units successfully.

1.3 ObjectiveThis RP outlines recommended work processes for the testing and commissioning activities on offshorenewbuild units. This document shall be read as a guide to testing and commissioning equipment ad systemsonboard Offshore Units. The document will help users in preparing or carrying out witnessing of testing andcommissioning activities to satisfy the requirements of classification and applicable statutory regulations whereDNV has delegation from such authorities. It should be noted that final acceptance of commissioning is theowner’s responsibility.

1.4 Scope and ApplicationThis guide is applicable to testing and commissioning activities onboard classed Mobile Offshore Units e.g.,Drilling, Accommodation and FPSO’s.

1.5 Structure of this documentThis document contains

— a general overview of testing and commissioning activities together with samples of typical contents oftesting and commissioning procedures including the ones for integration testing and commissioning

— Extract of applicable DNV Service Specifications and DNV standards related to preparation, testing andcommissioning of various marine, utility and industrial systems

— Categorization of marine, utility and industrial systems that can be used to decide on the extent ofinvolvement from various stakeholders.

The RP can be used as a check list for reviewing Commissioning procedures to assist preparation ofrequirements related to class and applicable statutory regulations.

1.6 How to use this documentThe main function of the RP is to ensure that the commissioning procedures contain all the relevant informationrequired by the applicable DNV Service Specifications and DNV Offshore Standards.If the commissioning procedures are reviewed against this document, they should contain all the requiredinformation to ensure compliance with the various offshore standards thus ensuring that testing andcommissioning activities are fully in compliance with the required Classification requirements.

1.7 ReferencesInformation and requirements provided in this RP are extracted from the following DNV ServiceSpecifications, Offshore Standards and Ship Rules:

— DNV-OSS-101 Rules for Classification of Offshore Drilling and Support Units — DNV-OS-A101 Safety Principles and Arrangements — DNV-OS-C301 Stability and Watertight Integrity— DNV-OS-C401 Fabrication and Testing of Offshore Structures — DNV-OS-D101 Marine and Machinery Systems and Equipment — DNV-OS-D201 Electrical Installations — DNV-OS-D202 Automation, Safety, and Telecommunication Systems — DNV-OS-D301 Fire Protection — DNV-OS-E101 Drilling Plant— DNV Ship Rules Pt.4 Ch.2, Ch.3, Ch.7, Ch.8, Ch.14 / Pt.5 Ch.3 / Pt.6 Ch.3.


Recommended Practice DNV-RP-A205, March 2012Sec.1. Introduction –

1.8 Abbreviations

Abbreviation DescriptionAC Alternating CurrentBOP Blow Out PreventerCSG CasingDAT Digital Audio TapeDB Distribution BoardDC Direct CurrentDFMA Design for Manufacture and AssemblyDP Dynamic Positioning SystemESD Emergency Shut DownF&G fire & gas (systems)FPSO Floating Production, Storage and Offloading (Unit)FSO Floating Storage and Offloading (Unit)FW Fresh WaterHP High PressureHPU Hydraulic Power UnitHVAC Heating, Ventilation & Air ConditioningICCP Impressed Current Cathodic ProtectionICMS Integrated Control and Management SystemLER Local Electrical RoomLIR Local Instrument Room LMRP Lower Marine Riser PackageLP Low PressureLQ Living QuarterLV Low VoltageMC Mechanical CompletionMCC Main Control CenterMGPS Marine Growth Protection SystemP & ID Piping & Instrument DiagramPA/GA Public Address / General AlarmPMS Power Management SystemPSD Process Shut DownQA Quality AssuranceQC Quality ControlQSP Quality Survey PlanSIT System Integration TestSWBD SwitchboardUPS Uninterruptable Power SupplyVDU Visual Display UnitVFD Variable Frequency Drive


Recommended Practice DNV-RP-A205, March 2012Sec.2. Commissioning Process and Definition of Various Stages –

2. Commissioning Process and Definition of Various Stages

Commissioning of an offshore unit is a time consuming and complex process. A structured approach is anecessity for a successful commissioning phase of the newbuilding projects. While the requirements for thetesting and commissioning are clearly specified in various applicable DNV standards, how exactly thecommissioning activities should be carried out is largely left to the Builder/Owners of the mobile offshoreunits. For instance, there will be dependencies between the different packages. It is, however, a DNVrequirement to see that the testing requirements mentioned in our rules are carried out during commissioning.It is often required by DNV offshore standards that the equipment is to be tested in “as installed” condition. So,though similar tests have already been carried out during a factory acceptance test (FAT), a new test in installedcondition would be required., A typical example could be the offshore cranes. They will probably be overloadtested during FAT, but they will still be required to have an overload test in installed condition.

Before commissioning starts the responsible DNV surveyor and all stakeholders involved in preparing andcarrying out the testing and commissioning should also have an idea as to what activities are considered mostimportant to DNV and also what activities are not within the DNV scope. During commissioning it is alsoimportant to be aware that the owner’s and the yard’s viewpoint as to what is DNV’s scope of work may notbe in harmony with the scope required by the DNV Offshore standards. It is also important to recognize thatowner/yard may have additional requirements e.g., related to performance or additional functionality, that maybe over and above the classification requirements of DNV.

2.1 Detailed designWhen entering into the final stages of any project, the detailed design is expected to be fully completed,reviewed and approved. Failure to complete the design in a satisfactory manner may undermine alreadycompleted testing and commissioning, especially comments that may result in redesigning component orsystems. Any duplication in redoing testing and commissioning is not very efficient and will result in loss ofvaluable time and additional cost. The preferred solution would be to have the design engineers availableduring the commissioning stages. The design engineer can then confirm completion of the design activities andadvise what needs to be rectified, redesigned and followed up.

2.2 Mechanical CompletionFor most offshore projects mechanical completion (MC) is considered a natural and a logical step on the waytowards proper project completion. It is normal for the builder or system vendor to create mechanicalcompletion check lists for the actual equipment or system. Only some parts of mechanical completion iscovered in the DNV Offshore standards and is thus formally DNV scope of work. DNV generally maintainoversight of most of the mechanical completion activities of the project through unscheduled surveys. Whereit is mandated by the Quality Survey Plan (QSP), a DNV surveyor may attend certain mechanical completionactivities. Some of the examples of such activities are:

— Pressure testing of piping. — Installation of main engines/alignment.— Cable installation / segregation of cables.

In this instruction, MC is completed when construction and installation of equipment, piping, instrumentation,


Recommended Practice DNV-RP-A205, March 2012Sec.3. Pre-commissioning –

cabling, electrical equipment, etc. have been demonstrated as physically complete. Dynamic tests are limitedto non-energised tests like cold alignment of shafting for motors, engines and generators. Further megger tests,flushing and drying of piping systems, cleaning, etc. is included in this milestone. Typically, the MC will resultin a number of punches that must be rectified before any actual pre-commissioning, testing and commissioningcan commence. Normal findings typically include missing electrical equipment grounding, lack of propershielding of fuel pipes or hot surfaces, insufficient nozzle coverage for deluge systems, etc. The evidence ofthe required certification of equipment should be verified during mechanical completion stage so that there areno surprises before commencing pre-commissioning, testing and commissioning stages. Failure to do so mayjeopardize the safety of such activities.

3. Pre-commissioningPre-commissioning is the stage before commissioning which involves the verification of functional operabilityof the equipment part or full systems. This stage of testing requires energising of equipment and introduction offluids in fluid piping systems. This is the stage where the vendor and/or the yard are carrying out independenttesting of the equipment/system. This is a “trial and error” phase where class normally do not attend. Duringreview and approval of commissioning procedures, it is important for the DNV surveyor to make sure that testsrequired by the rules are carried out during the commissioning phase. It may be a challenge when the testsrequired by the rules are carried out during pre-commissioning but not attended by a DNV Surveyor. This shouldbe highlighted during the review of the commissioning procedures. Pre-Commissioning would typically include:

— Loop testing. — Motor no load runs. — Equipment final alignments.

3.1 Commissioning

The phase after mechanical completion, pre commissioning and testing is often referred to as thecommissioning phase. The “commissioning of an an offshore unit” is a very wide term and for the purpose ofclassification, it refers to equipment or system commissioning. Typically equipment/system commissioningwill consist of:

— Functional testing of systems by start-up priority.— Testing of ESD/PSD and F&G.— Load tests and other equipment performance testing.

In the commissioning phase it will be verified that the installed equipment and system are working as intendedand that the rule requirements for the various equipment/system functionality are met. The rules will haverequirements for “performance”, e.g. number of starts for starting air receivers and “functionality”, e.g. safetyfunctions of boilers and incinerators.

For effective commissioning, it is important that the testing and commissioning of the different skids/packagesare given the right priority so that they happen in the right sequence/order. Very little commissioning can beperformed without the hydraulic ring line, power system, cooling water, pneumatic systems and other utilitiesbeing functional and working properly, Typically, temporary arrangements should not be accepted forcommissioning. It should also be a general principle that commissioned equipment is not dismantled ormodified after testing and commissioning of the equipment/system is completed. Once the equipment/systemis tested and commissioning is completed it is good practice to have a close out meeting where thecommissioning procedures are signed, by owner and outstanding punch items are agreed.

3.2 Integration testing

Integration testing is a collective term for testing and commissioning of more than one system (a collection ofsystems, sub-systems and equipment packages) to ensure compliance with project requirements. Many systemsonboard are integrated with other systems in one way or another. However, in this context, integration testingis meant to cover the following but not limited to:

— Complete functional testing of systems across equipment boundaries. — Final adjustments of alarm-limits, measuring instruments.— End to end testing of ESD/PSD and F&G.— Integrated testing of PROD/DRILL plants.

Many of the system integration tests are often carried out during the marine sea trial as all the relevant systemsand consumers may be required to be ready for such tests to be carried out. The trials can also be organised e.g.with one drilling trial and one marine sea trial.


Recommended Practice DNV-RP-A205, March 2012Sec.4. Commissioning Procedures –

3.3 Marine sea trial

The marine sea trials typically focuses on propulsion, steering and utility systems functioning under normaloperating conditions. A prerequisite for sea trials is that the major safety systems like fire fighting, life-savingappliances, PA/GA, HVAC, etc. are satisfactorily commissioned ahead of sea trials. In addition, the incliningtest should be completed prior to taking the unit out on sea trial.

Sea trials are conducted to test a vessels performance and general seaworthiness. Testing of a vessels speed,manoeuvrability, equipment and safety features are usually conducted during sea trial. However, thisdemonstration of speed and manoeuvrability, etc. is normally more important for a merchant vessel than anoffshore unit. A merchant vessel will typically have a contract speed as part of the contract between the builderand the owner. That is seldom the case for an offshore unit. The marine sea trial will typically consist of butnot limited to:

— Testing of Dynamic Positioning System.— Final commissioning of Ballast systems, Cooling water, Lube oil, Fuel Oil, HVAC, Thrusters, etc.— Speed test.— Crash stop.— Turning test.— E0 test.— Endurance test.

The marine sea trial is normally not relevant for fixed units or units without propulsion.

3.4 Delivery

Depending on type of unit, the successful completion of all testing and commissioning activities will triggerthe delivery of the unit. The level of completion will however vary from project to project. Typically a projectwith a contract in place and a long transit to the operation area, the owner may prefer an early delivery with theintention to close some of the outstanding items in transit. If a unit does not have a project in place, the ownerwill typically aim for a higher level of completion before they will accept the unit. Equipment subject to classapproval that is not readily commissioned in accordance with approved testing and commissioning proceduresshould be identified in the delivery documentation by issuance of relevant conditions of class. It should beevaluated prior to delivery whether the outstanding class and statutory systems are minor in nature and doesnot affect the safety and integrity of the unit that will allow the Class Society to issue appropriate Class andStatutory Certificates. If critical systems e.g., fire fighting/detection, propulsion and steering, life-savingappliances, navigational aids, etc. are not commissioned, Class and Statutory Certificates are not typicallyissued.

3.5 Hook up

Hook up is mostly relevant for fixed units like FPSO’s and other units that will stay on the same location for anumber of years, however some drilling units may require some testing of systems on first location. Typicallyit means the hook up of risers to the unit and preparations required prior to first oil. Many of the vitalcommissioning activities for such units will have to take place at location and cannot be completed during theconstruction of the unit. Hook up is not typically included in the class scope but if safety and integrity of thevessel is in question, Class Society typically evaluates the status of such operation.

3.6 Operation

Once the unit is in operation, there should not be any major outstanding class and statutory items carried overfrom the newbuilding phase and procedures related to “units in operation” requirements should be followed.

4. Commissioning ProceduresTwo types of procedures are normally submitted for Review / Approval:

— System Commissioning.— Integration Testing.

Typical examples of the contents list of these procedures are shown in the Figure 4-1 and Figure 4-2 belowincluding a further explanation of the expected content in Italics.


Recommended Practice DNV-RP-A205, March 2012Sec.4. Commissioning Procedures –

Figure 4-1Typical content for a system commissioning procedure

Figure 4-2Typical content for a system integration test procedure

SYSTEM COMMISSIONING PROCEDURE

1 SYSTEM DESCRIPTION 1.1 Commissioning Package 1.2 System Integration Description 1.3 Pre-requisites

2 OBJECTIVE

3 GENERAL 3.1 Safety requirements and precautions 3.2 Regulatory and project specific requirements 3.3 Participants (e.g. Owner / Vendor / Class Representative / Builder) 3.4 Kick-off meeting 3.5 Special / Temporary Tools / Equipment, Spare & Consumables 3.6 Traceability of documents & records 3.7 Punch list system

4 PRE-COMMISSIONING 4.1 Each package listed 5 OPERATIONAL MULTI-DISCIPLINE COMMISSIONING 5.1 Detailed test procedure with acceptance criteria APPENDIXES

I. Equipment Data Sheet / Information II. Commissioning Test Results / Running Logs III. Single Line Diagram / Block Diagram IV. P & ID

INTEGRATION TEST PROCEDURE

1 SYSTEM DESCRIPTION 1.1 Commissioning Package 1.2 System Integration Description 1.3 Pre-requisites 2 OBJECTIVE 3 GENERAL 3.1 Safety Requirements and precautions 3.2 Sequence of Events 3.3 Participants (e.g. Owner / Vendor / Class Representative / Builder) 3.4 Kick-off meeting 3.5 Special / Temporary Tools / Equipment, Spare & Consumables 3.6 Traceability of documents & Records 3.7 Punch list system 4 PERFORMANCE OF INTEGRATION TEST 4.1 Detailed test procedure with acceptance criteria 5 OPERATIONAL MULTI-DISCIPLINE COMMISSIONING 5.1 Detailed test procedure with acceptance criteria APPENDIXES

I. Equipment Data Sheet / Information II. Commissioning Test Results / Running Logs III. Single Line Diagram / Block Diagram IV. P & ID


Recommended Practice DNV-RP-A205, March 2012Sec.5. DNV Involvement in Commissioning –

— Ad. Item 1.1 Commissioning PackageA generic description of the unit and its systems: - Marine System xxxx- Topside – Service System xxxx

— Ad item 1.2 System integration testingThe integral system is controlling several systems and their functions from a common operating systemVDU. The Integrated Control and Monitoring (ICMS) system is built for the specified type of vessel whichis a distributed monitoring and control system which, due to its flexibility and modular architecture can beextended to cover a wide range of applications and types of vessels.Integration testing is defined as testing of more than one system, i.e. testing that extends the workperformed in a single commissioning procedure and typically involves systems or equipment covered inanother commissioning procedures.

— Ad item 1.3 Pre-requisitesDescribe the systems required to be completed prior to start activities as listed in this procedure.

— Ad item 2.0 ObjectivesThe objective of an integrated test procedure is to verify the necessary check and pre-requisites areaccordingly carried out and that the system is in accordance with design specification and regulatoryrequirements.

5. DNV Involvement in CommissioningDNV’s involvement in testing and commissioning is limited to the requirements of statutory and class rules.DNV surveyor will attend testing and commissioning to the extent specified in applicable Quality SurveyProgram (QSP).Survey scope shall be categorized as follows:

— Survey Category 1 - Statutory and Essential Systems for Safety (normally increased attendance by DNV).— Survey Category 2 - Main Systems / Functionally Important (For Main and Additional Class Notations,

extent is based on the yard’s experience and the effectiveness of Yard’s QA/QC system).— Survey Category 3 – Normally limited or no attendance required by surveyor.

The tables attached in the following appendices detail the “survey categorization during MechanicalCompletion and Commissioning of Marine and Drilling Systems” (based on Project System / Sub System List).

Drillships Appendix ASemi-Submersible units Appendix BJack Ups Appendix CFPSO Appendix DFSO Appendix E


Recommended Practice DNV-RP-A205, March 2012App.A DNV Typical Survey Categorization for Drillships during Mechanical Completion and Commissioning of Marine and

Drilling Systems –

APPENDIX A DNV TYPICAL SURVEY CATEGORIZATION FOR DRILLSHIPS DURING MECHANICAL COMPLETION AND COMMISSIONING OF MARINE AND

DRILLING SYSTEMS

A.1 Category 1 Systems for Commissioning (for Integration)

A.2 Category II Systems for Commissioning (for Integration)

No. Name of the System Integrated with1 Fire Main System F&G/Deluge/control2 Inergen System F&G/HVAC/PA3 Fire Water Deluge System F&G4 Main Diesel Generator PMS&S/T&DP5 Sea Water Cooling System Consumer Capacity Test6 Thruster S.W. Cooling System S/T7 Thruster S/T8 11Kv Switchboard (or equivalent) PMS9 690V HPU MCC (or equivalent) SIT10 690V Drilling VFD Switchboard (or equivalent) SIT11 690V Thruster VFD Switchboard (or equivalent) DP/PMS12 230V AC UPS (or equivalent) ESD13 230V AC UPS Battery (or equivalent) ESD14 230V AC UPS Main Distribution Board (or equivalent) ESD15 230 AC UPS DB (or equivalent) ESD16 ICMS, Fire And Gas, ESD & DP

With Sensor And Reference SystemESD/HVAC

17 Telecom System ESD18 Electrical And Auxiliary Machinery Rooms Ventilation Systems ESD19 Engine Rooms Ventilation Systems ESD20 Port/Stbd/Aft Machinery Rooms Ventilation Systems ESD21 LQ HVAC ESD22 Power Management System DRILL/DP23 Dynamic Positioning System Test (DPS) CONTROL24 Machinery Unmanned Test E0

No. Name of the System Integrated with1 Ballast System Semi Recovery Test2 Aux. Cooling F.W. System S/T & SIT3 460V LV Switchboard S/T4 230V LV Switchboard S/T5 PA Coverage Measurement Normal Operation

(machinery Running)




A.3 Category I Systems for Commissioning (as independent systems)

A.4 Category II Systems for Commissioning (as independent systems)

No. Name of the System1 Lifeboat & Launch System2 Mob Boat Launch Device System3 Deck Crane4 Emergency bilge system5 Emergency Shut Off System (Quick closing valves)6 Drill Floor Elevator7 Escape Chute8 Watertight Doors9 Helideck Fire-Fighting System10 Emergency Generator11 Emergency Switchboard12 Cement unit13 230V AC UPS 14 230V AC UPS Battery15 230V AC UPS Main Distribution Board16 230 AC UPS DB17 Dynamic Positioning System Test (DPS)

No. Name of the System 1 Misc.Lifesaving Equipment2 Helicopter Refueling System3 Ballast System4 Dirty Drain System5 Fire Main System6 Inergen System7 Fire Water Deluge System8 Main Diesel Generator9 Steam Generating System10 Sea Water Cooling System11 Starting Air System For Main Engine12 Thruster S.W. Cooling System13 Sewage & Gray Water Discharge System14 Anchor Winches15 Thruster 16 Bilge System17 Diesel Gen. F.W Cooling System18 11Kv Switchboard (or equivalent)19 690V HPU MCC (or equivalent)20 690V Drilling VFD Switchboard (or equivalent)21 690V Thruster VFD Switchboard(or equivalent)22 230V AC UPS (or equivalent)23 230V AC UPS battery (or equivalent)24 230V AC UPS Main Distribution Board (or equivalent)25 230V AC UPS DB(or equivalent)26 Nav. And Signal Light27 U-Light And Foghorn28 Obstruction Light29 Remote Sounding System30 ICMS, Fire And Gas, Esd & Dp With Sensor And Reference System31 Telecom System 32 HPU For V/V Operation33 Ram Rig Travelling Yokes Main/Aux. (or equivalent)




34 Tong Lift System35 LIR / HVAC Room, HVAC 36 DDM-1000-HY-RR/DDM-650-HY-RR (or equivalent)37 Rotary Table Main/Aux.(Including Power Slips) 38 DAT System39 Guideline Winch & Tensioner System40 LP/HP Nitrogen System41 Mud Bucket42 Bulk Powder Handling System43 Mud Storage And Transfer System44 Mud Mixing And Additive System45 Mud Supply System46 Mud Return And Treatment System47 Mud, Brine, Oil Storage & Transfer System System48 BOP Package49 Diverter Package50 Tubular and Riser Feeding Machine/Shuttle, Main Rig51 Lower Guiding Arm including Heads and Rail, Main/Aux52 Trolley For Riser Guiding53 Riser Chute54 DP/DC, Casing & Riser Fingerboard55 Direct Lift Bridge Crane DP/DC/CSG, Main Rig/Aux. Rig56 Hydraulic Roughneck MH 189957 Multi Scope Arm(Casing Modem)58 Hydraulic Cathead, Brake Out, including Wire59 Tail in Arm60 Multi Manipulator Arm(DFMA)61 Piperack Gantry Crane62 Riser Handling Crane (w/ Rail)63 BOP Skid/X-Mas/ LMRP Transportation/Handling64 Miscellaneous Guides65 Access Basket66 BOP Overhead Crane/X-mas Tree Overhead Crane 67 Overhull Guiding68 Utility Winch & Manrider Winch69 Burner Boom70 Ringline HPU And Distribution System71 Ramrig HPU And Distribution System72 Dual Derrick Simultaneous Operation73 Integrated BOP & Riser Handling System74 Integrated Drill String Test (Simulated Spud-in Mode)75 Sludge system76 Loop Check77 Smart Zone System78 Drilling Control79 Mud and Cement Manifolds80 LQ HVAC81 Power Management System82 Navigation Equipment83 Machinery Unmanned Test84 Anchor Test85 PA Coverage Measurement

No. Name of the System (Continued)




A.5 Category III Systems for Commissioning (as independent system)

A.6 Category I Systems for Commissioning (Class Notation CRANE)

Guidance note:Additional systems based on the choice of additional class notations should be added in addition to the above.

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

No. Name of the System1 Monorail System2 Air Winches & Towing Equipment3 Drill Water System4 Deck Bilge System5 Service Air System6 Steam & Drain System7 Seawater Service System8 Aux. Cooling F.W. System9 Diesel Oil Transfer & Drain System10 Lub. Oil Storage, Transfer & Drain System11 Distilled & Make-Up Water System12 Potable & Sanitary Supply System13 Cold Starter Generator14 MGPS (Marine Growth)15 Heat Trace System16 460V LV Switchboard17 230V LV Switchboard18 Small Power DB19 Lighting And Small Power20 Shore Connection Box21 Column And Pontoon Machinery Rooms Ventilation Systems22 Electrical And Auxiliary Machinery Rooms Ventilation Systems23 Engine Rooms Ventilation Systems24 Port/Stbd/Aft Machinery Rooms Ventilation Systems25 HVAC Duck Air Leak Test Procedure for Hull & Topside26 ICCP27 Pneumatically Operated Door28 Provision Cold Store & Freezer System29 Noise Level Measurement30 Vibration Level Measurement31 Helideck Drains

No. Name of the System1 Deck Crane


Recommended Practice DNV-RP-A205, March 2012App.B DNV Typical Survey Categorization for Semi-submersible Units during Mechanical Completion and Commissioning

of Marine and Drilling Systems –

APPENDIX B DNV TYPICAL SURVEY CATEGORIZATION FOR SEMI-SUBMERSIBLE UNITS DURING MECHANICAL COMPLETION AND COMMISSIONING

OF MARINE AND DRILLING SYSTEMS

B.1 Category I Systems for Commissioning (for integration)

B.2 Category II Systems for Commissioning (for integration)

No. Name of the System Integrated with1 Fire Main System F&G/Deluge/control2 Inergen System F&G/HVAC/PA3 Fire Water Deluge System F&G4 Main Diesel Generator PMS&S/T&DP5 Sea Water Cooling System Consumer Capacity Test6 Thruster S.W. Cooling System S/T7 Thruster S/T8 11Kv Switchboard (or Equivalent) PMS9 690V HPU MCC (or Equivalent) SIT10 690V Drilling VFD Switchboard (or Equivalent) SIT11 690V Thruster VFD Switchboard (or Equivalent) DP/PMS12 230V AC UPS (or equivalent) ESD13 230V AC UPS Battery (or equivalent) ESD14 230V AC UPS Main Distribution Board (or equivalent) ESD15 230 AC UPS DB (or equivalent) ESD16 ICMS , Fire And Gas, ESD & DP


17 Telecom System ESD18 Column And Pontoon Machinery Rooms Ventilation Systems ESD19 Electrical And Auxiliary Machinery Rooms Ventilation Systems ESD20 Engine Rooms Ventilation Systems ESD21 Port/Stbd/Aft Machinery Rooms Ventilation Systems ESD22 LQ HVAC ESD23 Power Management System DRILL/DP24 Dynamic Positioning System Test (DPS) CONTROL25 Machinery Unmanned Test E0

No. Name of the System Integrated with1 Anchor Winches If Posmoor, TA/ATA2 PA Coverage Measurement Normal operation3 Ballast System Semi recovery test4 Auxiliary Cooling Fresh Water System (#2) S/T & SIT5 460V LV Switchboard S/T6 230V LV Switchboard S/T




B.3 Category I Systems for Commissioning (as independent systems)

B.4 Category II Systems for Commissioning (as independent systems)

No. Name of the System1 Lifeboat & Launch System2 Mob Boat Launch Device System3 Deck Crane4 Emergency Bilge System5 Emergency Shut Off System (Quick closing valves)6 Drill Floor Elevator7 Escape Chute8 Column Room Elevators9 Water Tight Doors10 Helideck Fire-Fighting System11 Inclining Experiment & Light Weight Measurement Procedure12 Emergency Generator13 Emergency SWBD14 Cement Unit

No. Name of the System 1 Misc. Lifesaving Equipment2 Helicopter Refueling System3 Dirty Drain System4 Ballast System5 Fire Main system6 Inergen system7 Fire Water Deluge system8 Main Diesel Generator9 Steam Generating System10 Sea Water Cooling System11 Starting Air System for Main Engine12 Thruster S.W. Cooling System13 Sewage & Gray Water Discharge System14 Anchor Winches15 Thrusters16 Bilge System17 Diesel Generator Fresh Water Cooling System18 11Kv Switchboard (or equivalent)19 Navigation and Signal Light20 690V HPU MCC (or Equivalent)21 690V Drilling VFD Switchboard (or Equivalent)22 690V Thruster VFD Switchboard (or Equivalent)23 230V AC UPS (or equivalent)24 230V AC UPS Battery (or equivalent)25 230V AC UPS Main Distribution Board (or equivalent)26 230 AC UPS DB (or equivalent)27 U-Light and Foghorn28 Obstruction Light29 Remote Sounding System30 HPU for V/V Operation31 Ram Rig Travelling Yokes Main & Auxiliary (or equivalent)32 Tong Lift System33 LIR/HVAC Room, HVAC34 Draw-Work35 DDM-1000-HY-RR/DDM-650-HY-RR (or equivalent)36 Rotary Table Main / Auxiliary (Including Power Slips)




37 DAT System38 Guideline Winch & Tensioner System39 LP/HP Nitrogen System40 Mud Bucket41 Bulk Powder Handling System42 Mud Storage & Transfer System43 Mud Mixing & Additive System44 Mud Supply System45 Mud Return & Treatment System46 Pontoon Mud, Brine, Oil Storage & Transfer System47 BOP Package48 Diverter Package49 Tubular & Riser Feeding Machine/Shuttle, Main Rig50 Lower Guiding Arm Includes Heads & Rail, Main & Auxiliary51 Trolley For Riser Guiding52 Riser Chute53 DP/DC, Casing & Riser Fingerboard54 Direct Lift Bridge Crane DP/DC/CSG, Main Rig / Auxiliary Rig55 Hydraulic Roughneck MH 189956 Multi Scope Arm (Casing Modem)57 Hydraulic Cathead, Brake Out, Including Wire58 Tail in Arm59 Multi Manipulator Arm (DFMA)60 Piperack Gantry Crane61 Riser Handling Crane (with Rail)62 BOP Skid / X-Mas / LMRP Transportation / Handling63 Miscellaneous Guides64 Access Basket65 BOP / X-Mas Tree Overhead Crane 66 Underhull Guiding Main / Auxiliary67 Overhull Guiding68 Utility Winch & Manrider Winch69 Burner Boom70 Ringline HPU & Distribution System71 Ramrig HPU & Distribution System (or equivalent)72 Dual Derrick Simultaneous Operation (if Fitted)73 Integrated BOP & Riser Handling System74 Integrated Drill String Test (Simulated Spud-in Mode)75 Sludge System76 Loop Check77 Smart Zone System78 Drilling Control79 Mud & Cement Manifolds80 Navigation Equipment81 Anchor Test82 Leakage detection system





B.5 Category III Systems for Commissioning (as independent system)

No. Name of the System1 Monorail System2 Air Winches & Towing Equipment3 Drill Water System4 Deck Bilge System5 Service Air System6 Steam & Drain System7 Seawater Service System8 Aux. Cooling FW system9 Diesel Oil Transfer & Drain System10 Lub Oil Storage, Transfer & Drain System11 Distilled & Make-Up Water System12 Potable & Sanitary Supply System13 Cold Starter Generator14 MGPS (Marine Growth)15 Heat Trace System16 460V LV Switchboard (or equivalent)17 230V LV Switchboard (or Equivalent)18 Small Power Distribution Boards19 Lighting and Small Power20 Shore Connection Box21 Column and Pontoon Machinery Rooms Ventilation Systems22 Electrical and Auxiliary Machinery rooms ventilation systems23 Engine room ventilation systems24 Port/ Stbd/Aft machinery rooms ventilation systems25 HVAC Duct Air Leak Test Procedure for Hull & Topside26 ICCP27 Pneumatically Operated Door28 Provision Cold Store & Freezer System29 Noise Level Measurement30 Vibration Level Measurement31 Helideck Drains


Recommended Practice DNV-RP-A205, March 2012App.C DNV Typical Survey Categorization for “Jack-up” Units during Mechanical Completion and Commissioning of Marine

and Drilling Systems –

APPENDIX C DNV TYPICAL SURVEY CATEGORIZATION FOR “JACK-UP” UNITS DURING MECHANICAL COMPLETION AND COMMISSIONING OF

MARINE AND DRILLING SYSTEMS

C.1 Category I Systems for Commissioning (for integration)

C.2 Category II Systems for Commissioning (for integration)

No. Name of the System Integrated with1 Fire Main System F&G/Deluge/control2 Inergen System F&G/HVAC/PA3 Fire Water Deluge System F&G4 Main Diesel Generator PMS&S/T&DP5 Sea Water Cooling System Consumer Capacity Test6 11Kv Switchboard PMS7 690V HPU MCC SIT8 690V Drilling VFD Switchboard SIT9 230V AC UPS ESD10 230V AC UPS Battery ESD11 230V AC UPS Main Distribution Board ESD12 230 AC UPS DB ESD13 ICMS, Fire And Gas and ESD


14 Telecom System ESD15 Electrical And Auxiliary Machinery Rooms Ventilation Systems ESD16 Engine Rooms Ventilation Systems ESD17 Port/Stbd/Aft Machinery Rooms Ventilation Systems ESD18 LQ HVAC ESD19 Power Management System DRILL/DP20 Machinery Unmanned Test E021 Jacking motors Jacking trial22 Jacking control system Jacking trial

No. Name of the System Integrated with1 Fire water lift with submerged pumps2 PA Coverage Measurement Normal operation3 Auxiliary Cooling Fresh Water System (#2) S/T & SIT4 460V LV Switchboard S/T5 230V LV Switchboard S/T




C.3 Category I Systems for Commissioning (as independent systems)

C.4 Category II Systems for Commissioning (as independent systems)

No. Name of the System 1 Lifeboat & Launch System2 Mob Boat Launch Device System3 Deck Crane4 Emergency Bilge System5 Emergency Shut Off System (Quick closing valves)6 Drill Floor Elevator7 Escape Chute8 Water Tight Door9 Helideck Fire-Fighting System10 Inclining Experiment & Light Weight Measurement Procedure11 Emergency Generator12 Emergency SWBD13 Cement Unit14 Cantilever15 Rack Chocking Device16 Accommodation Unit Gangway Test17 230V AC UPS 18 230V AC UPS Battery19 230V AC UPS Main Distribution Board20 230 AC UPS DB

No. Name of the System 1 Misc. Lifesaving Equipment2 Helicopter Refueling System3 Dirty Drain System4 Fire Main System5 Inergen System6 Fire Water Deluge System7 Main Diesel Generator8 Steam Generating System9 Sea Water Cooling system (including Buffer Tank alarms if Fitted)10 Starting Air System for Main Engine11 Sewage & Gray Water Discharge System12 Bilge System13 Diesel Generator Fresh Water Cooling System14 11Kv Switchboard or Equivalent15 690V HPU MCC (or Equivalent)16 690V Drilling VFD Switchboard (or equivalent)17 Navigation and Signal Light18 U-Light and Foghorn19 Obstruction Light20 Remote Sounding System21 ICMS, Fire and Gas and ESD22 Telecommunication System23 HPU for V/V Operation24 Ram Rig Travelling Yokes Main & Auxiliary (or equivalent)25 Tong Lift System26 LIR/HVAC Room, HVAC27 Draw-Work28 DDM-1000-HY-RR/DDM-650-HY-RR (or equivalent)29 Rotary Table Main / Auxiliary (Including Power Slips)30 Mud Bucket




31 Bulk Powder Handling System32 Mud Storage & Transfer System33 Mud Mixing & Additive System34 Mud Supply System35 Mud Return & Treatment System36 Mud, Brine, Oil Storage & Transfer System37 BOP Package38 Diverter Package39 Lower Guiding Arm Includes Heads & Rail, Main & Auxiliary40 Direct Lift Bridge Crane DP/DC/CSG, Main Rig / Auxiliary Rig41 Hydraulic Roughneck MH 189942 Multi Scope Arm (Casing Modem)43 Hydraulic Cathead, Brake Out, Including Wire44 Tail in Arm45 Multi Manipulator Arm (DFMA)46 Piperack Gantry Crane47 BOP Skid / X-Mas / Transportation / Handling48 Miscellaneous Guides49 Access Basket50 BOP / X-Mas Tree Overhead Crane 51 Utility Winch & Manrider Winch52 Burner Boom53 Ringline HPU & Distribution System54 Ramrig HPU & Distribution System55 Dual Derrick Simultaneous Operation56 Integrated Drill String Test (Simulated Spud-in Mode)57 Sludge System58 Loop Check59 Smart Zone System60 Drilling Control61 Mud & Cement Manifolds62 Navigation Equipment63 Anchor Test (if fitted for temp and emergency mooring)64 Ballast System/ Pre Load System65 Spud can HP water injection





C.5 Category III Systems for Commissioning (as independent system)

No. Name of the System1 Monorail System2 Air Winches & Towing Equipment3 Drill Water System4 Deck Bilge System5 Service Air System6 Steam & Drain System7 Seawater Service System8 Diesel Oil Transfer & Drain System9 Lube Oil Storage, Transfer & Drain System10 Distilled & Make-Up Water System11 Potable & Sanitary Supply System12 Cold Starter Generator13 MGPS (Marine Growth) (if fitted for spud cans)14 Heat Trace System15 Small Power DB16 Lighting and Small Power17 Shore Connection Box18 HVAC Duct Air Leak Test Procedure for Hull & Topside19 Pneumatically Operated Door20 Provision Cold Store & Freezer System21 Noise Level Measurement22 Vibration Level Measurement23 Helideck Drains


Recommended Practice DNV-RP-A205, March 2012App.D DNV Typical Survey Categorization for FPSO Units during Mechanical Completion and Commissioning of Marine

and Production Systems –

APPENDIX D DNV TYPICAL SURVEY CATEGORIZATION FOR FPSO UNITS DURING MECHANICAL COMPLETION AND COMMISSIONING OF MARINE AND

PRODUCTION SYSTEMS

(Pending)


Recommended Practice DNV-RP-A205, March 2012App.E DNV Typical Survey Categorization for FSO Units during Mechanical Completion and Commissioning of Marine and

Production Systems –

APPENDIX E DNV TYPICAL SURVEY CATEGORIZATION FOR FSO UNITS DURING

MECHANICAL COMPLETION AND COMMISSIONING OF MARINE AND PRODUCTION SYSTEMS

(Pending)


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SAFETY SYSTEMS

F

n when it is near to completion as possible, to determine

tight doors or hatch covers are hydraulically tested with

m water), and the acceptance criteria shall be: 1 litre per minute for doors or hatch covers with metallic

atch covers are hose tested. The water pressure shall be imum 1.5 m from the door or hatch cover. No leakage

l circumstances, upon acceptance by all parties involved.

atertight doors and hatch covers shall be tested. The

ore than 60 seconds.neously within 60 seconds from the control room.s by means of a local device and stored energy. and at the same time hold both handles in the “open

after being closed centrally, and the door or hatch cover

.ver is closed centrally.perly.

em, low pressure (below lowest permissible).

APPENDIX F DNV REQUIREMENTS RELATED TO MARINE, UTILITY AND

.1 Stability and Watertight Integrity

System / Equipment Description

DNV OS / Rule Reference

DNV Surveillance Focus

Inclining Test DNV-OS-C301Ch.2 Sec.1 C100

— Confirm the results of an inclining test are gathered for the first unit of a desigaccurately the light ship data (weight and position of center of gravity).

Watertight / Weathertight Doors and Hatches

DNV-OS-C301 Ch.2 Sec.2 I100

— Pressure testing of watertight doors and hatches:

- Before installation (i.e. normally at the manufacturer), confirm that waterexposure to the side most prone to leakage.

- The test pressure shall correspond to the pressure height + 0.05 N/mm2 (5- No leakage for doors or hatch covers with gaskets, maximum water leakage

sealing.DNV-OS-C301 Ch.2 Sec.2 I200

— Hose testing of all watertight and weathertight doors and hatch covers:

- After installation onboard, confirm watertight and weathertight doors or hat least 0.2 mm2 (2 bar), and the nozzle shall be held at a distance of maxshall be accepted.

- As an alternative to hose testing, chalk testing may be applied under speciaDNV-OS-C301 Ch.2 Sec.2 I300

— Function testing of watertight doors and hatch covers — After installation onboard the operation, control and alarm functions for all w

following shall be verified:

- For each door, the total closing time shall not be less than 30 seconds or m- It shall be possible to close all doors or hatch covers in one group simulta- It shall be possible to open and close the doors or hatch covers three time- It shall be possible for a person to pass through the doorway or hatchway

position”.- It shall be possible to open the door or hatch cover locally from both sides,

shall close automatically after such opening.- The door or hatch cover shall be mechanically locked in a closed position- The light and sound signals shall give warning when the door or hatch co- The remote position indicator for doors or hatch covers shall function pro- The alarms for the following conditions shall function properly: - Start of standby pump, loss of power to control, alarm and indicating syst

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hydraulic test using water. Alternatively, tightness may id spaces not part of the structural integrity in the A void space defined as a confined space is typically not s between cofferdams/pump room and adjacent non-

haser.arried out before protective coating has been applied. A applied prior to testing. Tightness may also be confirmed ir into root gap of fillet welds (fillet air test). Tightness in butt welds of plated boundaries may be omitted.hall not exceed 0.2 bar and shall be reduced to a smaller r indications of small leaks. Care should be taken so that because of unexpected raise in ambient temperature, an accurate method, such as a U-shaped tube with water.

the tank. The outside of the tank shall be dry and clean. maximum distance of 1.5 m. The nozzle inside diameter

By agreement, the test shall be carried out by applying r a series of sister vessels. Protective coating may be

ically tested from at least one side.ase a) as defined in the relevant offshore object standard. be restricted to avoid excessive dynamic design pressure.other damages have developed during the test..) which shall be watertight, are separately tested before

d.

t. The test method and results shall be reported.ation.

.2 Fabrication and Testing of Offshore Structures


DNV OS / Rule Reference


Tanks DNV-OS-C401 Ch.2 Sec.4 B100

— Testing of Tightness— Confirm that all tanks are tested for tightness. The test may be performed as a

be confirmed by use of compressed air and an efficient indicating liquid. Voaccidental limit state (ALS) can normally be omitted from this tightness test. intended to carry liquid cargo, ballast or fuel. Gas tightness of e.g. boundariehazardous area, may be subject to appropriate methods accepted by the purc

— Tightness test by compressed air and an effective indicating liquid shall be cthin layer (< 50 m) of primer with documented chemical composition may be by the following methods: vacuum testing of individual welds, injection of atesting of continuous automatic and multipass semiautomatic weld processes

— If compressed air and an efficient indicating liquid are used, the air pressure svalue, but not less than 0.15 bar before inspection. The method shall give cleathe pressure in the tank does not exceed 0.2 bar above atmospheric pressure falling atmospheric pressure or otherwise. The pressure shall be measured byMeans should be provided to release pressure in emergency case.

— If water is applied, the pressure shall not be less than 25 kN/m2 at the top of — For hose testing, the hose pressure shall be at least 200 kN/m2 and applied at a

shall be at least 12.0 mm.DNV-OS-C401 Ch.2 Sec.4 C100

— Structural Tests— Confirm that at least one of several identical tanks undergo a structural test.

water. In agreement with the purchaser, the structural test may be omitted foapplied before a structural test is carried out.

— Bulkheads between tanks arranged to carry different liquids shall be hydraul— The test pressure height shall be taken as the design pressure height for load c

The pressure shall be maintained for at least 20 minutes. The filling rate shall — The structural test is considered successful if no significant deformations or — Confirm that closing appliances for access openings in decks, bulkheads (etc

installation. Structural testing of other parts outside tanks may be required.— If structural tests reveal weaknesses in the structure, further testing is require

Corrosion Protection Systems

DNV-OS-C401Ch.2 Sec.5 A500

— Installation of impressed current cathodic protection system:

- Confirm that testing of the proper functioning of the systems is carried ou- Final testing and acceptance of the system shall be performed after install

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ed and approved by DNV in advance of the onsidered complete when all systems, equipment and

cked for compliance with approved documentation and

able, in accordance with approved procedures.rtight boundaries from control room / station, as well as

tegrity, these valves shall be capable of being operated te control station.rical, hydraulic, and pneumatic) does not cause opening ater system for propulsion and power generating

rer, at a pressure equal to 1.5 times the nominal pressure. emperature. The test pressure need not be more than 70 s side and bottom, the test pressure shall not be less than

are hydrostatically tested at a pressure equal to 5 bar

pipes, compressed air pipes and feed pipes of class III:

ceed working pressure by more than 70 bar.

one (1) hour.d functionally tested under working conditions.

.3 Marine and Machinery Systems and Equipment


DNV OS /Rule Reference


All Systems / Equipment

DNV-OS-D101Ch.3 Sec.1E100 / E200 / E300

— General

- Commissioning shall be in accordance with submitted procedures reviewcommissioning. Commissioning shall be witnessed by a surveyor and is cinstrumentation are operating satisfactorily.

— System and Equipment Checks

- During commissioning, all items of pipework and equipment shall be checommissioning procedures.

— Functional Testing

- During commissioning, the systems shall be functionally tested, as practicAll Piping Systems DNV-OS-C301

Ch.2 Sec.2 C200

— Confirm positive functional testing results of closure devices in way of watepositive remote confirmation of the same closure devices.

— Where valves are provided at watertight boundaries to maintain watertight infrom a control room. Valve position indicators shall be provided at the remo

DNV-OS-D101Ch.2 Sec.1 A700

— For remotely controlled valves, confirm that a failure in power supply (electof closed valves or closing of open valves on fuel oil tanks and in cooling wmachinery.

DNV-OS-D101Ch.2 Sec.2 E200

— Confirm that all valve bodies are subject to a hydrostatic test by the manufactuThe nominal pressure is the maximum allowable working pressure at room tbar in excess of the nominal pressure. For valves fitted on unit or installation’5 bar.

— Confirm that butterfly valves fitted on unit or installation’s side and bottom applied independently on each side of the closed disc.

DNV-OS-D101Ch.2 Sec.6F100 / F200

— Hydrostatic testing required after assembly on board — The piping shall be hydrostatically tested in accordance with the following:

- Fuel oil piping, heating coils in tanks, bilge, ballast and fire pipes, steam - 1.5 maximum working pressure, minimum 4 bar.- Hydraulic piping: - 1.5 maximum working pressure for 15 minutes. Test pressure need not ex- Piping systems made from non-metallic material: - 1.5 maximum working pressure, minimum six (6) bar, minimum duration

DNV-OS-D101Ch.2 Sec.6G100

— Confirm that all piping systems are properly flushed, checked for leakage an

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ored crude oil, are hydrostatically tested to 1.5 times the working pressure by more than 70 bar.

orking pressure, and to a minimum of 14 bar. um pressure head on the head-capacity curve.

s than the relief valve opening pressure. 1.5 times the steam pressure.

required.condition (rated speed and pressure head, viscosity, etc).

tests have been previously performed and documented.

allasted by either pump.

ing.

status indication.s.n (UPS function).

/ compartment may be removed by either pump.tted with such.thin pump / essential machinery rooms. essential machinery rooms.

pecified herein.

tion, while in an intact condition, from the maximum s.

be oil tanks above double bottom and located below top

, and tanks which upon unintended closing of the valves,

Pump Hydrostatic Testing

DNV-OS-D101Ch.2 Sec.2D200

— Confirm that all pump housings, excluding those for pumps which transfer stmaximum working pressure. The test pressure need not exceed the maximum

- Pumps for transfer of crude oil shall be tested at 1.3 times the maximum w- For centrifugal pumps, the maximum working pressure shall be the maxim- For displacement pumps, the maximum working pressure shall not be les- The steam side of the steam driven pumps shall be hydraulically tested to

— Hydrostatic testing of pump housings on submerged pumps is normally not Pump Capacity Testing


— Confirm that pump capacities are checked with the pumps running at design

- The capacity test need not be applied for pump designs where satisfactory

Ballast, Bilge and Drainage Systems - General

DNV-OS-D101Ch.2 Sec.3B100

— Ballast and Bilge System

- Confirm functional redundancy of system such that any tank may be de-b- Confirm installed pump capacity meets design requirements.- Confirm functionality of the central Ballast and Bilge Control Station test- Witness final comprehensive testing of the Ballast and Control System.- Confirm self-closure of ballast valves in emergency situations and remote- Confirm power supply function from normal and emergency switchboard- Confirm status indications remain following shutdown of power generatio

— Bilge System

- Confirm functional redundancy of system such that the bilge of any tank - Confirm free draining arrangements for tanks, compartments and voids fi- Confirm location and function of both branch bilge suction lines fitted wi- Confirm location and function of emergency bilge suction within pump / - Confirm installed pump capacity meets design requirements.

Ballast, Bilge and Drainage Systems – Column Stabilized Units and Installations

DNV-OS-D101Ch.2 Sec.3 C100

— Confirm that the general requirements are complied with, unless otherwise s

- The ballast system is to provide the capability to bring the unit or installanormal operating draught to a severe storm draught, within three (3) hour

Lubricating Oil Systems

DNV-OS-D101Ch.2 Sec.4C400

Confirm proper function of remote shut-off of normally open valves as fitted to luof the tank or overflow outlet.

— This requirement may be waived for small tanks with volume less than 0.5 m3

may result in loss of main functions.



DNV Surveillance Focus (Continued)

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ote shut-off valves as fitted to fuel oil (FO) tanks and location of remote control station.

on or nearby engine room bulkheads;ns above the floor plates.

ng of a filter under pressure.

wing pumps and fans from a central place outside the

anual interlock for over temperature.

pproved fixed fire-extinguishing system, operated from

er and oil-booster pumps outside the room. Ventilating

er in case consumers are shut-off. n outside the heater room, of stop-valves fitted to oil fired

cation outside the heater room, of circulation pumps and

l and bypass arrangements and fire extinguishing

es after stop of burners.

Fuel Oil Systems DNV-OS-D101Ch.2 Sec.4D400 / D500 / D600 / D900

— Fuel Oil Tank Valves

- Confirm proper function from central position outside engine room of remlocated below top of the tank or overflow outlet. Also, confirm the proper

— Arrangement of Valves

- Confirm location and proper function of fuel oil line shut-off valves fitted- Confirm all valves in the fuel oil system shall be controllable from positio

— Oil Filters

- Confirm duplex filter arrangement such that it prevents unintended openiDNV-OS-D201Ch.2 Sec.2H500

— Remote Stop of Fuel Oil Pumps and Fans— Confirm function of remote emergency stop of the power supply to the follo

engine and boiler room:

- Fuel oil transfer pumps;- Fuel oil booster pumps;- Nozzles cooling pumps when fuel oil is used as coolant;- Fuel oil purifiers;- Pumps for oil-burning installations;- Fans for forced draught to boilers;- Fans for ventilation of engine and boiler rooms;- Thermal oil circulation pumps;- Hydraulic oil pumps.

DNV Ship RulesPt.4 Ch.8 Sec.8A400

— Fuel Oil Pre-Heaters— Confirm proper function of oil temperature control (Max 50ºC) and related m

Thermal Oil Systems DNV Ship RulesPt.4 Ch.7 Sec.3B100 / B200 / B300 / B600 / B700

— Confirm function of mechanical ventilation, automatic fire detecting and an aan easily accessible place outside the room.

— Confirm location and proper function of remote stop of ventilation, oil-burnducts shall be possible to close by means of flaps.

— Confirm proper automatic function of minimum circulation through the heat— Confirm local and remote manual operation, from an easily accessible locatio

heater main inlet and main outlet pipes for thermal-oil.— Confirm local start, stop and remote manual stop, from an easily accessible lo

heater burners.— For exhaust fired thermal oil heaters, confirm function of temperature contro

arrangements as fitted.— Confirm that the circulating pumps remain in operation at least for 10 minut




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e to keep the oil temperature within the limits for safe

ty tested according to an approved test program. The test range of heater loads. The heater system charge shall be

hen boilers are operated at maximum load during normal

all have capacity for a number of starts specified below

ree (3) starts each, total capacity need not exceed six (6)

pts shall be limited to three (3) starts

ses, the capacity of the system shall be the sum of the

ceivers shall be sufficient for three (3) starts per engine. not exceed eighteen (18) starts. air receivers of capacities specified in 201 and 202 from

ption of starting energy.

h as to provide comfortable working condition in the oilers, and to prevent heat-sensitive apparatus from

ts of stagnant hot air are avoided. Special considerations ng areas, where reasonably fresh and clean outdoor air

ntake to air passing from the engine room up to the casing ºC.

gine room, which does not exceed 50 Pa.hour and non-hazardous enclosed spaces receives six (6)

Thermal Oil Systems(Continued)

DNV Ship RulesPt.4 Ch. 7 Sec.7E100 / E200

— Confirm proper automatic control of thermal-oil outlet temperature to be abloperation under all load conditions.

— Confirm alarm and automatic shutdown of burner for the following:

- Thermal Oil: Temperature Outlet High, Flow Low and Pressure Low;- Flue Gas: Temperature High;- Expansion Tank: Level Low, Temperature High (alarm only);- Forced Draft: Fan Stopped;- Heavy Fuel Oil: Temperature or Viscosity High / Low (alarm only);- Flame: Flame Ignition and / or Flame Failure.

DNV Ship RulesPt.4 Ch.7 Sec.8D600

— After onboard installation, confirm that the system is functionally and capaciprocedure shall include flow measurements for each coil, covering the wholea thermal-oil, which will allow maximum heater rating to be tested.

Feed Water and Condensation System

DNV-OS-D101Ch.2 Sec.4F200

— Confirm the preheating arrangement maintains the temperature above 80ºC wservice.

Pneumatic Starting Arrangements

DNV-OS-D101Ch.2 Sec.4 J200

— Confirm starting systems for internal combustion engines and gas turbines shwithout reloading of air receivers:

- Engines for driving electric generators and engines for other purposes – thstarts

- Engines for driving emergency generators – six (6) starts, automatic attem

— Confirm if a starting system serves two or more of the above specified purpocapacity requirements.

— Confirm for multi-engine propulsion plants, the capacity of the starting air reHowever, the total capacity shall not be less than twelve (12) starts and need

— Confirm compressors are installed with total capacity sufficient for chargingatmospheric to full pressure in the course of one (1) hour.

DNV-OS-D201Ch.2 Sec.2 H200

— Confirm that failed automatic starting attempts are limited to restrict consum

HVAC System DNV-OS-D101Ch.2 Sec.4 K300

— Confirm for machinery spaces that the capacity of the ventilation plant is sucengine room, to supply the necessary combustion air to the diesel engines, boverheating.

- Confirm that air is distributed to all parts of the engine room, so that pockeshould be given to areas with large heat emission and to all normal workishould be provided through adjustable inlet devices.

- Confirm for units with unrestricted location, the temperature rise from air ishould be maximum 10ºC for an outside air temperature of maximum +35

— Confirm that the air exhaust fans maintain a slight positive pressure in the en— Confirm that hazardous enclosed spaces receives twelve (12) air changes per

air changes per hour.




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tdown of gas and crude oil supply:

ntilated duct. For crude oil fired units, detection of liquid

is requirement may be dispensed with if the ducting has

d the following minimum requirements:

estion of flammable gas.:

d to the motors. The brake alarm shall be given by an

ovided. For a lattice leg unit, the load per chord is as a maximum load is exceeded.cepted methods.

descending load. The duration shall reflect one operating

Use of Gas and Crude Oil for Auxiliary Boilers and Turbines

DNV-OS-D101Ch.2 Sec.4L311

— Confirm the following fault conditions shall release alarm and automatic shu

- Detected gas of maximum 20% of the lower explosive limit (LEL) in the veat all low points in the ventilated duct may be accepted as an alternative;

- Detected gas of maximum 20% of the LEL in engine and boiler room. Thno opening (e.g. hood) into the machinery space;

- Loss of ventilation in the duct;- Abnormal pressure variation in the fuel supply line;- Detected fire in the engine and boiler room.

General Marine Equipment


— Confirm that a space is pressurized to make it non-hazardous, and is provide

- Pressurization air is taken from a safe area;- An alarm system is fitted to indicate loss of air pressure;- An air-lock system with self-closing doors are fitted;- An exhaust outlet is located in a non-hazardous area;- A combustion air inlet is located in a non-hazardous area.

— Automatic shutdown is arranged to prevent overspeeding in the event of ingJacking Gear Machinery


— Confirm that the following control and monitoring arrangements are present

- Remote indication and alarm if a brake is not released when power applieindependent mechanical sensor;

- Remote indication and alarm for overheating of an electric motor;- A permanent remote indication of loads during jacking and retrieval is pr

minimum to be presented. Confirm that an alarm signal is given when theDNV-OS-D101Ch.2 Sec.5 C1200

— Confirm that a spin test and contact pattern test is carried out according to ac


— Confirm that jacking machinery is tested with the highest specified lifting andcycle.

— Confirm that the interlock is tested.




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hall be subjected to the required hydrostatic and running

e tested at 1.5 times design pressuresure

e);

ical means, confirm that mutual adjustment is tested.

thruster azimuth gear power units:

release the anchor lines while risers are connected to the

/ chain in case of an emergency. rea close to the winch itself, and from a manned control e brakes once in order to halt the lowering and therefore

f the windlasses or winches shall take place. and an audible alarm system in case of overload.

Thrusters DNV-OS-D101Ch.2 Sec.5E100DNV Ship RulesPt.4 Ch.14I100

— Shipboard testing— After installation on board the vessel, and prior to seatrial, the steering gear s

tests. The test shall as a minimum comprise of:

- Hydrostatic testing;- Parts of steering gear that has not been pressure tested at workshop shall b- Assembly shall be tested at a minimum 1.5 times maximum working pres- Function testing of the steering gear;- Testing alarms and indicators;- Autostart test of power units;- Testing all start and stop functions;- Test control transfer between bridge and local control;- Test safety valve setting (if not performed during in Workshop);- Testing function and setting of overcurrent protection;- Test and check functions and settings in frequency converter (if applicabl- Check mechanical rudder indicator.

— On double rudder installations where two units are synchronized by mechanDNV-OS-D101Ch.2 Sec.5E900

— Confirm that alarms are provided for the following faults:

- Stop of prime mover;- Power failure of remote control system;- Power failure of alarm system;- Low level in lubrication oil tank (if provided);- Low level in hydraulic supply tank;- Low pressure in hydraulic system;- High level in bilge well.

— The following additional alarms shall be provided and tested for propulsion

- Power failure;- Phase failure;- Motor overload;- High lubrication oil inlet temperature.

Windlasses, Winches and Chain stoppers for Temporary or Limited Use

DNV-OS-D101Ch.2 Sec.5 F300

— Confirm that a riser disconnect system is fitted, such that it is not possible to unit. Confirm that a special safety system preventing this is provided.

— Confirm that it is possible to carry out a controlled lowering of the wire rope— Confirm that it is possible to release the brakes or stoppers from a protected a

room or bridge. During the emergency release, it shall be possible to apply threleasing them again.

— Confirm that an audible alarm system exists to warn that remote operation o— Confirm that winches are fitted with a load indicator, emergency stop system




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ll services necessary for maintaining the ship in normal

pulsion and steering, and to ensure safety of the offshore f the generators in service, including:

standby generator occurs preferably within 30 seconds,

led by an automation system. The following alarms shall

d kVAr) taken by the generators, with the necessary time

ssible.ervice.kout. .ation sufficient for conducting all related inspections or

rface temperature.r assemblies (may be submitted by the manufacturer):

ntation. Control and protection shall be tested for correct

unction tests after installation onboard.bject to a voltage test between the circuits and between e the rated voltage plus 1000 V with a minimum of 1500 5 and 100 Hz. st voltage shall be a minimum of 500 V. letion of the voltage test. Confirm that the testing does el shall be at least 1 MOhm.

.4 Electrical Installations




Main Electric Power Supply System


— Confirm the main power supply system has the capacity to supply power to aoperation without recourse to the emergency source of power.

DNV-OS-D201Ch.2 Sec.2 B200

— Confirm that electrical supply to equipment necessary for station keeping, prounit, will be maintained or immediately restored in case of loss of any one o

- Confirmation that starting and connection to the main switchboard of the but not more than 45 seconds after loss of power.

DNV-OS-D201Ch.2 Sec.2H200

— Confirm system for start, stop and load sharing between generators, if controlbe confirmed:

- Power failure to the control system;- Starting failure of prime mover;- High and low frequency;- High and low voltage;- Excessive percentage difference in loads (kVA or alternatively both kW an

delay, when in symmetrical load sharing mode.

— Confirm simultaneous connection of generators on to the same bus is not po— Confirm restoration of power in case of loss of any one of the generators in s— Confirm all generator sets are arranged with systems for starting during blac

DNV Ship RulesPt.4 Ch.3 Sec.1I300

— Confirm that propulsion engines are tested for four (4) hours at 100% power— Confirm that engines for auxiliary purposes are tested at 100% power for dur

measurements, however, not less than one (1) hour.

- Confirm insulation of hot surfaces during maximum load by measuring suSwitchgear and Control Assemblies


— Confirm that the following tests are performed on switchgear and controlgea

- Function test: all basic functions including auxiliary functions;- Insulation resistance test;- High voltage test.

— Confirm that all circuits are verified installed as shown in the as-built documefunctioning.

— Confirm that switchgear or control gear assemblies are subject to complete f— Confirm that switchgear and assemblies with rated voltage above 60 V is su

live parts and the enclosure. The test voltage shall be minimum equal to twicV. The test voltage shall be applied for 1 minute at any frequency between 2

— For switchgear assemblies with rated voltage below 60V, confirm that the te— Confirm that the insulation resistance test is completed prior to and on comp

not cause any reduction in the switchgear insulation level. The insulation lev

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e emergency switchboard in case of failure of the main automatically started within 45 seconds and supplies at

essential for safety in an emergency. Hence, the sidered as part of the main distribution system, even

m the main switchboard by an interconnecting feeder, hboard, and shall be disconnected automatically at the lectrical power. and the testing of automatic starting arrangements.

with a stored energy capability of at least three (3) additional three (3) starts within 30 minutes, unless rting motor is sufficient.

onsumer load is applied suddenly, or;

ain switchboard;

m step loading is not exceeded;emonstrated at ship’s trails.ficient for conducting all related inspections or

asuring surface temperature.east 80% capacity within 10 hours while system has

a battery fails.

for the two (2) alarms listed here;ed that an active alarm will not prevent initiation of any

art attempts of the engines being normally supplied:

peller or other devices enabling the engine to be started

arting batteries is sufficient for three (3) starts per engine,

icient capacity for at least three (3) start attempts of each e taken as a minimum of ten (10) seconds.

Emergency Power Supply System


— Confirm the emergency source of power to be automatically connected to thsource of electric power. If the power source is a generator, confirm that it isleast the services required by transitional power.

— Confirm the electrical power available to be sufficient to supply all services emergency switchboard and emergency distribution boards are not to be conthough supplied from such during normal operation.

— Confirm that in normal operation, the emergency switchboard is supplied frowhich shall be protected against overload and short circuit at the main switcemergency switchboard upon failure of the supply from the main source of e

— Confirm provision for the periodic testing of the complete emergency systemDNV-OS-D201Ch.2 Sec.2C300

— Confirm that emergency generating sets are equipped with a starting device consecutive starts. Confirm that a second source of energy is provided for anmanual starting can be demonstrated to be effective within this time. One sta

- The duration of each start shall be minimum 10 seconds.DNV Ship RulesPt.4 Ch.2 Sec.4A100

— Confirm governor conditions for emergency generator sets when their total c— The total consumer load is applied in steps, subject to:

- The total load is to be supplied within 45 seconds since power failure on m- The maximum step load is declared and demonstrated;- The power distribution system is designed such that the declared maximu- The compliance of time delays and loading sequence with the above are d

DNV Ship RulesPt.4 Ch.3 Sec.1I400

— Engines for auxiliary purposes to be tested at 100% power for a duration sufmeasurements, however not less than one (1) hour.

- Confirm sufficient insulation of hot surfaces during maximum load by meBattery Systems DNV-OS-D201

Ch.2 Sec.2D100

— Confirm that each charging device has sufficient rating for recharging to at lnormal load.

— Confirm that an alarm is given at a manned control station if the charging of— Confirm that an alarm shall be given if the battery is discharged.

- A single common alarm signal to a central alarm system may be accepted- If other alarms are included in the common alarm signal, it must be ensur

new alarm with its audible and visual indication.Engines with Electric Starter

DNV-OS-D201Ch.2 Sec.2E101

— Confirm that each battery has sufficient capacity for at least the following st

- Twelve (12) starts for each reversible engine;- Six (6) starts for each non-reversible engine connected to a reversible pro

with no opposing torque.- The duration of each starting shall be a minimum of 10 seconds.

— For multi-engine propulsion plants, it shall be confirmed the capacity of the sttotal capacity shall not be less than 12 starts and need not exceed 18 starts.

— For auxiliary engines, it shall be confirmed that each starting battery has suffof the engines being normally supplied. The duration of each starting shall b




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condition within 30 minutes using only the facilities

the tests carried out on a prototype of a machine or the h machine.lude:

me plate; verification of degree of enclosure protection; lubrication system during running tests; overspeed tests t (1 minute); windings resistance to be measured; erload or overcurrent test; measuring of voltage r); measuring of open circuit voltage characteristics (AC suring of excitation current at rated voltage, current and short circuit condition (AC synchronous generator); a

:

me plate; verification of degree of enclosure protection; lubrication system during running tests; overspeed tests inute); windings resistance to be measured; temperature- at rated voltage and frequency; overload or overcurrent

table starting and running performance is verified with

g and running performance are verified with full capacity

with their switchboard equipment (switchgear or

ing sets.rating sets.t circuit, other protection like earth fault, differential,

Rotating Machinery - General


— Confirm that machinery can be brought into operation from the «dead ship» installed onboard.


— Confirm that electrical machines are tested at the manufacturer’s works withfirst of a batch of machines. Confirm that routine tests are carried out on eac

— The type tests (TT) and routine tests (RT) that are required for generators inc

- Air gap measured or verified; visual inspection, verification of data on navibration or balance of the machine including operation of the bearing or (20% in excess of rated r.p.m. for two (2) minutes); withstand voltage testemperature-rise test at full load; measurement of insulation resistance; ovregulation during steady and transient loading and unloading (AC generatogenerator); measuring of short circuit characteristics (AC generator); meapower factor (AC synchronous motor or generator); measuring of steady steep fronted impulse test (for high voltage machines).

— The type test (TT) and routine tests (RT) that are required for motors include

- Air gap measured or verified; visual inspection, verification of data on navibration or balance of the machine including operation of the bearing or (20% in excess of rated r.p.m. for 2 minutes); withstand voltage test (1 mrise test at full load; measurement of insulation resistance; no load currenttest.

— Confirm that all machines are tested onboard, after installation, so that accepfull capacity of driven equipment.


— All machines shall be tested at site, after installation, so that acceptable startinof driven equipment, alternatively full generator load.

— Confirm electrical characteristics and control of all generating sets together protection and cabling) during full load test.

— Confirm engine room ventilation / airflow during full load test of all generat— Confirm voltage regulation, speed governing and load sharing for of all gene— Confirm overload protection, reverse power protection, overcurrent and shor

undervoltage, overvoltage (if applicable) for all generating sets.— Confirm synchronizing systems for all generating sets.




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an 10% of the rated frequency with a recovery time to lectrical step load is switched on or off.d shall be such that prime movers - running at no load - y the next 1/3 after an interval sufficient to restore the

rime mover shall be able to take a sudden application of power. Steady state conditions shall be achieved in not

20% to 100% of total load. The load on any generating ore than 15% of the rated power of the largest machine

is the less. 20 to 100% of the rated reactive load of each generator. om its proportionate share of the total reactive load by or not more than 25% of the smallest generator's rated

e tests (RT) being carried out on each transformer, and ormers.

uring of insulation resistance; measuring of voltage ratio nce; short circuit impedance and load losses; measuring ducted AC withstand voltage test; partial discharge el of partial discharge shall be 10 pC.

d enclosure all connected together. The full test voltage

ccordance with requirements for the transformers as

d to a high voltage test with a test voltage of at least 75%

he insulation resistance of a new, clean, dry transformer, e test shall be carried out between:

f each polarity or phase are individually accessible.

Rotating Machinery - Load Steps


— Confirm transient frequency variations in the electrical network to be less thsteady state conditions not exceeding five (5) seconds, when the maximum e

— Confirm application of electrical load to be possible with three load steps ancan suddenly be loaded to 1/3 of the rated power of the generator followed bspeed to a steady state condition.

— Finally, the sudden load step from 2/3 to full load applies. Additionally, the pnot less than 1/3 of full load when running at any part load below 2/3 of fullmore than five (5) seconds.

— Confirm parallel running of generating sets (active load, kW) in the range ofset shall not normally differ from its proportionate share of the total load by mor 25% of the rated power of the individual machine in question, whichever


— Confirm parallel running of generating sets (reactive load, kVAr) in the rangeThe actual reactive load (mean value, if oscillations occur) shall not differ frmore than 10% of the rated reactive load of the largest generator in parallel, reactive load, if this is less than the former.

Power Transformers DNV-OS-D201Ch.2 Sec.6B100

— Confirm that transformers are tested at the manufacturer’s works with routintype tests (TT) carried out on a prototype or the first batch of identical transf

— The following routine tests (RT) are to be carried out:

- Inspection of enclosure, terminations, instrumentation or protection; measat no load and check of phase displacement; measuring of winding resistaof no-load loss and current; separate-source AC withstand voltage test; inmeasurement on transformer windings above Um ≥ 3.6 kV, maximum lev

— The following type test (TT) is to be carried out:

- Temperature rise test,

— Confirm that the separate-source AC withstand voltage test involves:

- A high voltage test is applied to a new and completed transformer;- The test is carried out immediately after the temperature rise test;- The test is applied between each winding and the other windings, frame an

shall be maintained for one (1) minute;- Single phase transformers for use in a polyphase group shall be tested in a

connected together in the system;- After rewinding or other extensive repair, the transformer shall be subjecte

of that minimum test voltage.— Confirm that insulation resistance test is carried out and involves measuring t

after the temperature rise test and high voltage test have been carried out. Th

- All current carrying parts, connected together, and earth;- All current carrying parts of different polarity or phase, where both ends o




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nd specified overload capacity given by a current of

nd two consecutive start attempts immediately followed

0 Volt in less than five (5) seconds (or a residual charge able, warning signboards shall be fitted.

rms shall be provided: when the discharging battery fails, in operation for on-line units; operation of battery

e, frequency and current.ossible. Manual resetting / restarting of the unit shall not

re carried out on each converter. These tests should include:

oltage tests); insulation resistance test; control and oses. are carried out on a prototype of a converter or the first

ency tolerance test; stored energy and restored energy rrent test/full load test; temperature rise test; control and

arge; pressure test of coolant piping/hoses. are performed with all relevant ship systems

tions, an alarm is initiated. In case of duplicated supplies,

er supply for systems that are required to operate during eed. distribution system has a device or devices to n audible or visual indication in case of abnormally low

or operation at 1/3 or less of the minimum earth fault ged for less than 20% of the minimum earth fault current.ent or give an alarm on a manned control position.prevent simultaneously closing of both feeders when the strength. A short time parallel feeding as a “make before of one of the parallel feeders within 30 seconds.erator breaker trips at 110% to 125% of nominal current,

is installed such that the breaker trips at a maximum of 1

protection, such that it will trip when generator voltage

Semi-Conductor Converters

DNV-OS-D201Ch.2 Sec.7A201

— Confirm that the converter has a capacity of at least 100% continuous load, amaximum duration of time.

— Confirm for motor drives (including soft starters), shall as a minimum withstaafter stopping, or starting up from cold without being overheated.


— Confirm that capacitors within a converter shall be discharged to less than 6of less than 50 mC) after removal of power. If this requirement is not achiev

— Confirm that alarm is given for power supply failure and trip of unit.— Confirm that for power supply units with batteries included, the following ala

alternatively if the battery is being discharged; when the automatic bypass isprotective device.

— Confirm that converters have the possibility for monitoring the output voltag— Confirm that restarting the converter in a normal manner after a blackout is p

be necessary.DNV-OS-D201Ch.2 Sec.7B100

— Confirm that converters are routine tested (RT) at the manufacturer’s works and a

- Visual inspection; function test (UPS switch test); insulation tests (high vmonitoring system; cooling failure tests; pressure test of coolant piping/h

— Confirm that converters are type tested (TT) at the manufacturer’s works andbatch of identical converters. These tests should include:

- Visual inspection; function test (UPS switch test); input voltage and frequtests; insulation tests (high voltage tests); insulation resistance test; rated cumonitoring system; short circuit test; cooling failure tests; capacitor disch


— Confirm that functional tests of semi-conductor converters for motor driverssimultaneously in operation, and in all characteristic load conditions.

Control Power DNV-OS-D201Ch.2 Sec.2H100

— Confirm that upon failure of the power supply to essential and important funcboth shall be monitored.

— Confirm battery or uninterruptible power supply is provided as stand-by powblack-out, restore normal conditions or if specific requirements specify the n

Electrical Distribution Systems

DNV-OS-D201Ch.2 Sec.2 G100

— Confirm that each insulated, or high resistance earthed primary or secondarycontinuously monitor the values of electrical insulation to earth and to give ainsulation values.

— Confirm that on high voltage systems, automatic disconnection is arranged fcurrent. On low-resistance earthed neutral systems, the disconnection is arran

DNV-OS-D201Ch.2 Sec.2 G200

— Confirm loss of protective functions to either trip the corresponding equipm— Confirm interlocks when a switchboard has two incoming feeders in order to

parallel-connected short circuit power exceeds the switchboards’ short circuitbreak” arrangement is accepted when arranged with automatic disconnection


— Confirm that generators are fitted with overcurrent protection such that the genwith a time delay of 20 to 120 seconds. Confirm that short circuit protection second delay.

— Confirm that generator circuit breakers are also equipped with undervoltage drops within the range of 70% to 35% of its rated voltage.




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ith a supply voltage containing the following harmonic

e harmonic being greater than 5% of voltage RMS value.umers) connected during installation shall undergo

etween phases where applicable (i.e. switchboards

a suitable instrument applying a DC voltage according to:

um resistance 1 M-ohm;istance 1 M-ohm;resistance (rated voltage / 1000) + 1 M-ohm; resistance (rated voltage / 1000) + 1 M-ohm.e carried out.

stallation. conditions, and in any abnormal condition in which the

ting modes and are controlled by automatic control

be stopped in an emergency from an easily accessible

, trip of unit and earth fault (except dedicated system for

re provided for when the battery is being discharged, when vice is active. Confirm that alarms are given to main alarm

ies are put into service:

Electrical Distribution Systems(Continued)


— Confirm equipment is designed to operate at any load up to the rated load, wdistortion:

- Total harmonic content not exceeding 8% of voltage RMS value; no singlDNV-OS-D201Ch.2 Sec.10D300

— Confirm that all outgoing power circuits from switchboards (cables and consinsulation resistance testing to verify its insulation level towards earth and bassembled onboard).

— The insulation resistance tests (megger tests) shall be carried out by means of

- Rated voltage ≤ 250 V, minimum test voltage 2 x rated voltage (V), minim- 250 < rated voltage ≤ 1000 V, minimum test voltage 500 V, minimum res- 1000 < rated voltage ≤ 7200 V, minimum test voltage 1000 V, minimum - 7200 < rated voltage ≤ 15000 V, minimum test voltage 5000 V, minimum


— Confirm that function and load tests of essential and important equipment ar— Confirm settings of protective functions of consumers.— Confirm function of protective functions of consumers, if wired up during in— Confirm satisfactory operation (by use of tests) of the distribution in normal

system is intended to operate.— Confirm start-up and stop sequences are tested together with different opera

systems when relevant. — Confirm interlocks, alarms and indicators.— Confirm all control modes from all control locations.

Emergency Stops DNV-OS-D201Ch.2 Sec.2 H500

— Confirm that at least the following pumps and fans are arranged and able to position outside the space being served:

- Fuel oil transfer pumps;- Fuel oil feed and booster pumps;- Nozzles cooling pumps when fuel oil is used as coolant;- Fuel and lubrication oil purifiers;- Pumps for oil-burning installations;- Fans for forced draught to boilers;- All ventilation fans;- All electrical driven lubrication oil pumps;- Thermal oil circulating pumps;- Hydraulic oil pumps in machinery space.

Battery / UPS System DNV-OS-D201Ch.2 Sec.7A200

— Confirm monitoring with alarm for UPS is provided for power supply failuresingle consumers).

— Confirm for power supply units with batteries included, that additional alarms athe bypass is in operation for on-line units and operation of battery protective desystem.


— Confirm that the following tests and inspections are performed before batter

- Ventilation shall be verified, including natural ventilation;- Capacity tests, voltage measurements;- Alarms and monitoring functions.




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r is being switched off (black out simulation) for UPS gency or clean power) systems serving essential or

on expected load (in battery feeding mode) for a period (30 minutes unless specified by other Rule requirement).

with intended loading onboard.ll relevant ship systems simultaneously in operation, and

se parts of the ship normally accessible to, and used by, power. These areas include:

appliances, and area of water which they are launched; lift cars and lift trunks;l positions;of safety equipment may be necessary to bring the switchboard; controls of machinery essential for the performance of t are located;

g to is automatically supplied from the emergency source

alternative circuits, one from the main source of power arranged for the two supply circuits. Confirm that upon

city.

ubject to one of the following alternative high voltage

ot less than:

tes;plied for 24 hours.

plied between the conductor and the metallic screen or

Battery / UPS System(Continued)


— Confirm positive function test result for dip free voltage when feeding powesystems and regular D.C. battery backed up power supply (transitional, emerimportant functions.

— Confirm correct capacity of battery backed up power supply system by runningdetermined by the requirements for the actual system and by the relevant rules

— Confirm that alarms are verified for their correct function.— Confirm functional test result of semi-conductor converters for power supply— Confirm functional tests of semi-conductor converters for motor drives with a

in all characteristic load conditions.Lighting DNV-OS-D201

Ch.2 Sec.2 F200

— Confirm main electric lighting system to provide illumination throughout thopassengers or crew, and shall be supplied from the main source of electrical

- Every muster and embarkation station, survival craft and their launching - All service and accommodation alleyways, stairways and exits, personnel- All machinery spaces and main generating stations including their contro- All control stations, machinery control rooms, locations where operation

installation to a safe stage, steering gear and at each main and emergency- All spaces from which control of drilling process is performed and where

this process, or devices for the emergency switching-off of the power plan- All stowage positions for firemen’s outfits;- At the fire pump and its starting position;- At the sprinkler pump and its starting position;- At the emergency bilge pump and its starting position;- Floodlight and perimeter lights on helicopter landing decks;- In all cargo pump rooms.

— Confirm that upon loss of main source of power, all required emergency lightinof power.

— Confirm the navigation light switchboard (controller) to be supplied by two and one from the emergency source of power. A changeover switch shall befailure of either power supply, an alarm is given.

Parallel Connected Cables

DNV-OS-D201Ch.2 Sec.2J600

— Confirm that single cables, after installation, do not carry more than its capa— Confirm that this is demonstrated at full load of the consumer.

High Voltage Cable after Installation


— After installation, with termination kit applied, high voltage cables shall be stests, with the voltage applied between the conductors and the screen:

a) When a D.C. voltage withstand test is carried out, the voltage shall be n

- 1.6 · (2.5 · U0 + 2) kV for cables with U0 not exceeding 3.6 kV- 4.2 · U0 kV for cables with U0 in excess of 3.6 kV

The test voltage shall be maintained for a minimum of 15 minub) A power frequency test at the normal operating voltage of the system, ap

c) A power frequency test with the phase-to-phase voltage of the system apearth for five (5) minutes.




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ll be confirmed:

ng;quipment for essential serviceshe cooled equipment for important services. for all equipment equipped with air / water heat tating equipment (which are not located in heated and

sary torque, power, and for A.C. systems reactive power trial) conditions.

ncy variations exceed normal limits, if other equipment

systems, an alarm is given on the navigating bridge and afe operational mode are executed.

e appreciable change of the thrust level or direction and

en there is not adequate available power.ith an automatic control system having at least the

rloaded;running generator is tripped. If necessary by tripping of

fails, that is no start or stop of generators shall occur as

uate power is no longer available.ith separate warnings separated from group alarms.

nverters having forced cooling;

nductor converters having closed cooling method with a f. Auxiliary contacts from motor starters may be used for

nductor converters;

less excitation systems and for machines rated less than

Cooling and Anti-Condensation


— Where electrical equipment depends on additional cooling, the following sha

- Alarm is initiated when auxiliary cooling or ventilation motors stop runni- Alarm is initiated based on winding temperature for windings in cooled e- Alarm is initiated based on high winding temperature in the windings in t- Confirm automatic operation (on standstill condition) of heating elements

exchangers as well as for all high voltage converters, transformers and roventilated spaces).

Electric Propulsion DNV-OS-D201Ch.2 Sec.12A300 / A400

— Confirm the system to have sufficient overload capacity to provide the necesneeded during starting (seatrial), manoeuvring (sea trial) and crash stop (sea

- During crash-stop manoeuvres, it will be accepted that voltage and frequeoperating on the same net is not unduly affected.


— Confirm upon detection of abnormal conditions in the generators’ excitationin the engine control room and automatic actions to bring the system into a s


— Confirm that a failure of the remote propulsion control system does not causnot prohibit local control.

— Confirm thrust limitation of the normal propulsion remote control system wh— Confirm electric power generation and distribution system to be equipped w

following functions:

- Ensure adequate power for safe manoeuvring is available at all times;- Ensure even load sharing between on-line generators;- Execute load tripping and / or load reduction when the power plant is ove- Ensure that adequate power for safe manoeuvring is available also if one

non-essential consumers;- No changes in available power shall occur if the automatic control system

an effect of a failure;- Control the maximum propulsion motor output.

— Confirm that the control system initiates an alarm to the operator when adeq— Confirm that critical alarms are relayed to navigation bridge and displayed w

— Confirm that monitoring alarms are arranged for:

- High temperature of cooling medium of machines and semi-conductor co- High winding temperature of all propulsion generators and motors;- Loss of flow of primary and secondary coolants of machines and semi-co

heat exchanger, when this flow is not caused by the propulsion motor itselthis purpose;

- Lubricating oil pressure for machines with forced oil lubrication;- Leakage of water-air heat exchanger for cooling of machines and semi-co- Earth fault for main propulsion circuits;- Earth fault for excitation circuits (This may be omitted in circuits of brush

500 kW);




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ent.the stator windings of generators and propulsion motors

e applicable converter:

erator: A power factor meter or kVAr meter. power available for propulsion on the bridge and in the

als, are provided for pitch or direction of rotation, speed,

ntrol room, even if no control means are provided.pulsion system shall be confirmed during sea trial where

ment system, when relevant.

Electric Propulsion(Continued)

DNV-OS-D201Ch.2 Sec.12A600(Continued)

— Fuses for filter units or for other components where fuse failures are not evid— Confirm that a temperature indicator for directly reading the temperature of

is located in the control room.— Confirm that the following values are displayed in the control room or on th

- Stator current in each motor;- Field current in each motor (if applicable).

— Confirm the following values are displayed in the control room for each gen— Confirm that instruments are provided for indication of consumed power and

control room.— Confirm at each propulsion control stand, indications, based on feedback sign

and azimuth, if applicable.— Confirm indications as listed for control stands, are arranged in the engine co

DNV-OS-D201Ch. 2 Sec. 12B100

— Upon completion as well as satisfactory tests of all subsystems, the electric prothe propulsion plant shall be tested in normal and abnormal conditions.

— Confirm that start-up and stop sequences as controlled by the power manage— Confirm safety functions, alarms and indicators.— Confirm all control modes from all control locations.— Confirm required level of redundancy by verification through tests.




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station.pes:

the following:

the least critical of any possible new conditions. Special sed for each detection area, as fail safe action should be

nd integration of software modules into the same hardware on board include:

rmal operating parameters;

f all automation and safety systems and shall include:

s, together with establishment of correct parameters for

ration of systems, including the ability of the automation arry out all safety/protective actions;

/ installation systems. The tests should demonstrate that eans of operation (as required in the relevant application practical.

pleted with final set points. y the Approval centre.e tested with maximum return flow to verify that return

t system performance. nsure fail-safe operation, tests shall include verification

locations. Only one location shall be able to be in control location is in control.also applicable for mode change) does not result in

.5 Instrumentation and Telecommunication Systems




Failure Response DNV-OS-D202 Ch.2 Sec.1 C200

— Confirm that detected failures initiate alarms in the assigned manned control— Confirm that failure detection facilities at least cover the following failure ty

- Power failure;- Sensor and actuator failures.

— For computer based systems, confirm that failure detection facilities covers

- Communication errors; - Computer hardware failures;- Software execution failures;- Software logical failures.

— Confirm fail-safe functionality to ensure the most probable failures result in attention shall be paid to arrangement where single fire or gas detectors are utaken on instrument failure resulting in confirmed fire or gas.

Integration Testing DNV-OS-D202Ch.2 Sec.1 F300

— Confirm that integration tests include integration of hardware components ahardware. The integration tests to be performed with the actual software and

- Hardware tests for failures;- System software tests for failures;- Application software tests;- Function tests of normal system operation, as well as operation outside no- User interface tests.

On-board Testing DNV-OS-D202 Ch.2 Sec.1 F500

— On-board testing shall demonstrate, verify and document full functionality o

- During installation, the correct function of individual equipment packageautomation and safety (time constants, set points, etc.);

- During installation and sea trials, the correct function of systems and integand safety systems to keep any EUC within the specified tolerances and c

- The correct distribution, protection and capacity of power supplies;- Back-up and emergency automation and safety functions for essential unit

the essential installation functions are operable on the available back-up mstandard), and in a situation where the normal system is disabled as far as

— A copy of the approved test programme shall be kept on the installation, com— The test program for harbour and sea trials shall be approved prior to tests b— Hydraulic automation and shutdown systems with on or off regulation shall b

headers are adequately sized and free of blockages that could prevent correc— For pneumatic and hydraulic automation systems with accumulators used to e

of accumulator charge level and capacity.DNV-OS-D202 Ch.2 Sec.2 A300

— Confirm main propulsion remote controls are independent of other command at a time. Confirm on each alternative location that it is indicated when this

— Confirm transfer of propulsion remote control from one location to another (significant alteration of process equipment parameters.

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fter being stopped by safety system.

dible signal may not be heard due to background noise,

onditions.olour and special representation. by the receiving location. Confirm transfer of n when this location is in charge. to the external rotating lights. However, the visual alarm

owever, visual indication will remain in alarm state on l will not prevent initiation of any new alarm with its

r other appropriate means.ion identifier. identification information is maintained.

ain functions independent of network status.

nd initiates an alarm on dedication workstations.

s should be generated if malfunctions or reduced /

munication;

) measurements for each fibre can be used to correct and

ulators are hydrostatically tested to 1.5 times the system

On-board Testing (Continued)

DNV-OS-D202Ch.2 Sec.2 A400

— Confirm equipment under control (EUC) does not start again automatically a

DNV-OS-D202 Ch.2 Sec.2 A600

— Confirm that alarms indicate abnormal conditions only. In areas where the auadditional visual and audible display units shall be installed.

— Confirm audible alarms are distinguishable from signals indicating normal c— Confirm visual alarms are distinguishable from other indications by use of c— Confirm responsibility for alarms not to be transferred before acknowledged

responsibility gives audible warning and indicates at each individual locatio— Confirm that silencing the audible signal causes the signal to cease in addition

indication on the workstation remains unchanged, normally flashing.— Confirm that acknowledgement of the alarm causes silencing of the alarm. H

the workstation until the alarm condition ceases. Also, an active alarm signaaudible and visual indication.

DNV-OS-D202 Ch.2 Sec.3B100

— Confirm running software versions are uniquely identified by number, date o— Confirm software modifications are not made without also changing the vers— Confirm the record of changes to the system since the original issue and the

DNV-OS-D202 Ch.2 Sec.3 C100

— Confirm it is possible to maintain emergency operation of the vessel / units m


— Confirm that the data communication link is self-checking, detects failures a


— Confirm that network (traffic) performance is continuously monitored. Alarmdegraded capacity occurs.


— Confirm the following items in a test related to network functionality:

- The main observations / items from the analysis;- Self- diagnostics, alarming upon different network failures;- Worst-case scenarios - network storm;- Segment segregation - autonomous operation of segments;- Individual controller node integrity - nodes working without network com- Consequence of single cabinet loss.


— After installation, confirm that Optical Time Domain Reflectometry (OTDRre-evaluate the power budget calculations.

DNV-OS-D202 Ch.2 Sec.4D100

— Confirm piping and tubing to actuators and between actuators and local accumdesign pressure for minimum 15 minutes.




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unctions and alarm indications related to emergency rotection devices; system status, if applicable; gas detection status plicable; activation of BOP release sequence (normally

by the emergency shutdown (ESD) system.

On-board Testing (Continued)

DNV-OS-D202 Ch.2 Sec.6 F100

— Drilling Unit / Production and Storage Unit

- Confirm back-up means of operation contains the most important action frelocation (if required), gas detection, including activation of active fire p

- This will typically include release of foam systems and indication of foamindication (flammable and toxic); facilities for emergency relocation, if aplocated in BOP control panel).

DNV-OS-D202 Ch.2 Sec.7 B100

— Production and Storage Unit

- Confirm power to the relevant parts of the safety system is not be tripped




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e and flames up to the end of the two-hour standard fire

ed as “H” class.

tandard fire test.ed as “H” class.

tandard fire test.ed as “H” class.l stations, machinery spaces and hazardous areas is e being served. The means provided for stopping the separate from the means provided for stopping

out interruption of normal operation.

ltaneously from each of any two (2) fire hydrants, hoses

rm the pump is capable of maintaining a pressure of 0.7

ly at the control station where the operating status of the

ally activates start-up of fire water pumps.

d vertically in order to permit the monitor to cover the

onitor is installed.ected position as well as capable of both jet and spray

.6 Fire Protection Systems




Fire Divisions DNV-OS-D301Ch.1 Sec.1 C100

— “H” class divisions are tested to the following standards:

- They are constructed to be capable of preventing the passage of gas, smoktest.

- Confirm that a test of a prototype division is carried out before its classifi

— “A” class divisions are tested to the following standards:

- They prevent the passage of smoke and flame to the end of the one-hour s- Confirm that a test of a prototype division is carried out before its classifi

— “B” class divisions are tested to the following standards:

- They prevent the passage of flame to the end of the first half hour of the s- Confirm that a test of a prototype division is carried out before its classifi

Fire Protection DNV-OS-D301Ch.2 Sec.1 B300

— Confirm power ventilation of accommodation spaces, service spaces, contropossible of being stopped from an easily accessible position outside the spacpower ventilation serving machinery spaces or hazardous areas to be entirelyventilation of other spaces.

Fire Fighting Systems


— Confirm that active fire protection systems and equipment can be tested with


— Confirm that each pump has the capability of delivering at least one jet simuand 19 mm nozzles while maintaining a minimum pressure of 0.35 N/mm2.

— Where a foam system is provided for protection of the helicopter deck, confiN/mm2 at the foam installation.


— Confirm release of the deluge systems to be possible both locally and remotesystems is monitored.


— Confirm that pressure drop in the sprinkler system is alarmed and automatic


— Confirm that the fire water monitor has sufficient movement horizontally ancomplete area of protection.

— Confirm the local manual override control is possible, if remotely operated m— Confirm the monitor is provided with a locking device for operating in a sel

discharge.

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itiate a visual and audible fire signal at the control panel inutes, confirm that an audible alarm is automatically

ons and machinery spaces of category A.atisfaction of the Administration by means of equipment having the appropriate range of density or particle size, esigned to respond. ct operation and restored to normal surveillance without

principals includes facilities for periodical testing is

on and ventilation (activity normally performed during

monitors all enclosed areas of the unit in which the

in the control center, the presence of an accumulation

ntrol station. The firewater pumps should start n low pressure in the fire water ring main.e driver. Automatic trip is only accepted for over-speed

y situation. Over-speed protection shall be automatic

t stop the pump or inhibit the start of the fire pump driver.er distribution pipework, provide effective fire water

s detection system and has a local energy source for the

eatest of the following:

area means the maximum breadth of the ship multiplied

ing the largest such area, or; being entirely forward of the monitor, but not less than

0 minutes of foam generation in tankers fitted with an with an inert gas installation when using solution rates

ntrol station. Confirm that firewater pumps start n low pressure in the fire water ring main.

Fire and Gas Detection


— Confirm that activation of any detector or manually operated call point will inand indicating units. If the signals have not received attention within two (2) msounded throughout the crew accommodation and service spaces, control stati

— Confirm that the function of the detection system is periodically tested to the sproducing hot air at the appropriate temperature, or smoke or aerosol particlesor other phenomena associated with incipient fires to which the detector is d

— Confirm that all detectors are of the type such that they can be tested for correthe renewal of any component.


— Periodically Unattended Machinery Space:

- Confirm that an approved fire detection system based on self-monitoring installed in periodically unattended machinery spaces.

- Confirm fire detection system under varying conditions of engine operatisea trial – smoke tests).


— Confirm that a fixed automatic gas detection and alarm system continuouslyaccumulation of flammable gas may be expected to occur.

— Confirm that gas detection system indicates both, by audible and visual alarmof gas corresponding to 25% and 60% of lower explosion limit.

Fire Protection – Oil and Gas Production and Storage Units


— Confirm that the fire pump systems are available at all times at the central coautomatically upon fire detection in any area they are serving, as well as upo

— Confirm that fire pumps are only be capable of being manually stopped at thprotection.

— Confirm that fire pump systems can operate until destruction in an emergencreset to cater for situations where new start up is called for.

— Confirm that fire detection at the fire water pump and / or its driver area do noDNV-OS-D301Ch.2 Sec.7D100

— Confirm that fixed fire fighting systems, including deluge valve and fire watprotection within 20 seconds of the demand.

— Confirm the deluge valve system is activated by a signal from the fire and gavalve actuator.

DNV-OS-D301Ch.2 Sec.7E200

— Confirm that the rate of supply of foam solution shall not be less than the gr

- 0.6 litre / minute / m2 of storage tank deck area, where crude oil tank deckby the total longitudinal extent of the cargo tank spaces;

- 6 litre / minute / m2 of the horizontal sectional area of the single tank hav- 3 litre/ minute / m2 of the area protected by the largest monitor, such area

1250 litre / minute.

— Confirm that sufficient foam concentrate can be supplied to ensure at least 2inert gas installation, and 30 minutes of foam generation in tankers not fittedgiven above, whichever is greatest.

Fire Protection – LNG Import and Export Terminals and Production Units


— Confirm that the fire pump systems are available at all times at the central coautomatically upon fire detection in any area they are serving, as well as upo




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er distribution pipework, provide effective fire water

s detection system and has a local energy source for the

lities results in an automatic shut-down of hydrocarbon

d spaces or smoke detection in ventilation air inlets. tank areas initiates an automatic shutdown of wellhead

flow.air results in an automatic shutdown of all air inlets to

acilities and storage tanks result in the wellhead valves

and double hull spaces on floating installations results ump-room, engine control room and navigation bridge,

O2-content, two instruments for measuring hydrocarbon ents for measuring low hydrocarbon gas content 0 to

and in the cargo control room are triggered if safe levels

ng low hydrocarbon gas content 0 to 100% LEL are control room are triggered if safe levels are exceeded.

Fire Protection –LNG Import and Export Terminals and Production Units (Continued)


— Confirm that fixed fire fighting systems, including deluge valve and fire watprotection within 20 seconds of the demand.

— Confirm the deluge valve system is activated by a signal from the fire and gavalve actuator.


— Confirm that fire detection in areas containing gas and LNG processing faciflow and ventilation for the area.

— Confirm automatic shutdown of ventilation upon detection of fire in enclose— Confirm that fire detection in the wellhead, turret, oil production or crude oil

valves and oil production facilities.DNV-OS-D301Ch.2 Sec.8H100

— Confirm that gas detection results in an automatic shutdown all hydrocarbon— Confirm that a gas concentration of 25% lower explosion limit (LEL) in the

non-hazardous areas.— Confirm 60% LEL gas detection in the area of wellhead, turret, production f

and production facilities shutdown.DNV Ship RulesPt.5 Ch.3 Sec.9F and G

— Confirm that gas detection not higher than 10% LEL in product pump roomsin an audible and visual alarm signal which is automatically initiated in the pto alert personnel to the potential hazard.

— For ships with inert gas systems, confirm that two instruments for measuring content in the range of 0 to 20% hydrocarbon gas by volume and two instrum100% LEL are present. Confirm that alarms (visual and audible) on the bridgeare exceeded.

— For ships without inert gas system, confirm that two instruments for measuriprovided and that alarms (visual and audible) on the bridge and in the cargo




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l sensor and the whole signal loop, correct functionality,

onths, unless more frequent testing is specified by the ed 12 months. nuously powered and in case of a loss of normal power

ill have capacity for 30 minutes.

optical (flashing light) warning at both control positions until acknowledged.

parameter which is being monitored (ie. Low-pressure operator panel.

idge for over-speed protection, crankcase explosive

m the main alarm system.

;

y, including controllable pitch propeller if arranged;

safety system), as well as restart (from bridge) after

e a start, is limited to safeguard sufficient starting air e set at a level that still permits starting operations of the

inery spaces shall be confirmed.

inery shall be confirmed. Prior to testing, the propulsion

e carried out without manual assistance from the engine ry space.test programme for fixed or controllable pitch propeller

.7 Vessel Operations




Periodical Test DNV Ship RulesPt.6 Ch.3 Sec.1D200

— Confirm that testing of field instruments shall in general include the physicaindication and alarming.

— Confirm that all field instruments for critical alarms are tested every six (6) mmanufacturer. The test intervals for all other field instruments shall not exce

General Operations DNV Ship RulesPt.6 Ch.3 Sec.2C100

— Confirm that the alarm system including the extension alarm system is contisupply, an automatic change over to a continuously available power supply w

DNV Ship RulesPt.6 Ch.3 Sec.2C400

— Confirm that the watch responsibility transfer system initiates an audible andwhen watch transfer is requested, and the warning shall remain in operation


— Confirm that automatic start of the standby pump is initiated by the process signal). When a pump is standby, confirm that this is clearly indicated on the

Class Notation E0 – Monitoring Systems


— Confirm that a manual activated safety shutdown is not possible from the brconditions and short circuit in electrical propulsion plants.

— Confirm that the alarm for manual activation of shutdown is independent froDNV Ship RulesPt.6 Ch.3 Sec.3B100

— E0: Confirm and test individual alarms on the bridge for:

- Automatic shutdown of main boiler;- Automatic shutdown and / or slowdown of propulsion machinery;- Request for manual shutdown and / or slowdown of propulsion machinery- Power failure bridge alarm system;- Failure in the remote control systems with respect to propulsion machiner- Failure in the remote control systems with respect to steering;- Low starting air pressure for reversible propulsion engines.

— Confirm that the propulsion plant is possible to reset (propulsion machinery blackout. Automatic or manual arrangements are both acceptable.


— Confirm the number of consecutive automatic attempts, which fail to producpressure. Confirm that an alarm is provided indicating low starting air pressurpropulsion machinery.


— During sea trials, four (4) hours continuous operation with unattended mach

DNV Ship RulesPt.6 Ch.3 Sec.5B100

— During sea trials, testing of the remote control system for the propulsion machmachinery shall run for at least one (1) hour.

— All tests included in the test programme for the remote control system shall broom and all systems shall be in operation as normal for unattended machine

DNV Ship RulesPt.6 Ch.3 Sec.5B200 / B300

— Confirm manoeuvres, start, stop and emergency stop according to approved arrangement during sea trial.

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est programme for steam turbine arrangement during sea

inery spaces shall be confirmed for both gas operation

amme should be confirmed for both gas operation mode

el engines of the high pressure gas injection type: testing ergency stop test) may be carried out with boilers fired

s possible without manual surveillance, except that start

s possible without manual surveillance.xiliary boilers tests, which include:

s, vary the boiler load as follows:

minutes;inutes;

f the greater consumers;um.

rallel, vary the boilers’ load as follows:

cting one of the greater consumers;

mately 5% of full load and keep that load until stationary

ain boilers tests, which include:

pecified in B300. The boiler plant testing may be carried es.

Class Notation E0 – Monitoring Systems (Continued)


— Confirm manoeuvres, start, stop and emergency stop according to approved ttrial.

Ships with Gas Fuelled Machinery


— During sea trials, four (4) hours continuous operation with unattended machmode as well as fuel oil mode (resulting in 2 x 4 hours test).

— Manoeuvres, start, stop and emergency stop according to approved test progras well as fuel oil mode.

— For LNG carriers with steam propulsion and dual fuel boilers as well as dual furequired (four (4) hours continuous operation - manoeuvres, start, stop and emwith fuel oil only.

Other Installations for Boil-off Gas Handling


— Confirm that automatic operation of gas combustion units (oxidizing units) iand stop may be manually initiated.

— Confirm that automatic operation for re-liquefaction plants for boil-off gas iDNV Ship RulesPt.6 Ch.3 Sec.5C100

— Confirm that parameters are recorded for the automatic control system for au

- Steam pressure (primary and secondary system);- Water level in boiler;- Automatic actions such as start and/or stop of burners, alarms, etc.

— For an automatic control system for auxiliary boilers serving turbo generator

- Increase load from minimum to full load during a period of minimum 15 - Reduce load from full load to minimum during a period of minimum 15 m- Increase load suddenly to minimum 50% of full load by connecting one o- When stationary conditions are reached, reduce load suddenly to a minim

— For an automatic control system for two auxiliary boilers operating in pa

- Increase load suddenly to minimum 30% of full load, by conne

— When stationary conditions are reached, reduce load suddenly to approxiconditions are reached.


— Confirm that parameters are recorded for the automatic control system for m

- Steam flow (alternatively position of control valve);- Steam pressure;- Temperature of superheated steam;- Water level in boiler;- Water level in condenser and deaerator;- Fuel oil temperature or viscosity;- Excess of combustion air in exhaust gas.

— Confirm that the boiler load is varied in accordance with manoeuvring tests sout simultaneously with testing of remote control system for the main turbin




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hile in operation.y shielding the flame detector.

ty limit. realistically as practicable.in class test requirement and no major pending issues

amme.atic system in operation.

programme.

Other Installations for Boil-off Gas Handling(Continued)


— Confirm the flame fault detection system by closing fuel supply to burner w— With burners in operation, confirm the automatic shutoff valve for fuel oil b— With boiler in operation, confirm automatic stop of the combustion air fan. — Confirm that fuel oil supply is shut off after reducing water level below safe— Confirm remaining boiler alarms and safety actions by simulating failures as

Dynamic Positioning DNV Ship RulesPt.6 Ch.7 Sec.1E100

— Confirm power systems and thruster systems have been completed as per maremaining before commencing any dynamic positioning (DP) test activity.

- Main class test requirements will at least include:- Load test according to main class;- Transfer of thruster control;- Manual override of thruster control;- Emergency stop;- Communication systems;- Main alarm system as for main class and E0 (if applicable);- Integrated automation systems (if applicable).

DNV Ship RulesPt.6 Ch.7 Sec.1E600

— Confirm dynamic positioning (DP) functional test as per approved test progr— Confirm DP duration test for at least eight (8) hours with the complete autom— Confirm DP failure modes and effects analysis (FMEA) as per approved test




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IONS

G

on of DRILL equipment and systems. It is mainly to be

ffshore drilling facilities which have potential to effect

val of complete drilling plant, which includes at least the

with the Rules. This should be confirmed prior to testing

rdance with written test procedures accepted by the

r, the Surveyor should “Note” the program and ensure

acturer, it is important to ensure that equipment has not d in the correct manner. Also, time between equipment

conditions.

to fixation and support.quipment. The list should include DVR and PC numbers

way, F and G/ESD needs to be addressed as it’s always

upport of heavy equipment.

APPENDIX G SURVEY SCOPE FOR SPECIFIC CLASS NOTAT

.1 DNV Survey Scope for DRILL




Drilling Plant – General

DNV-OSS-101DNV-OS-E101

— This section includes instructions for surveys and tests in connection with installatiused by the PMF and his / hers project task members at the yard.

— DRILL notation covers design fabrication, installation and operational aspects of opersonnel or pollution of the environment.

— DRILL notation requires certification of drilling equipment and systems, and approfollowing:

- Drilling arrangement;- Piping and instrumentation;- Power supply;- Equipment interface.

— It is important to ensure that equipment installed onboard is certified in accordance of complete systems.

— Testing of systems and equipment specified in the Rules is to be carried out in accoSurveyor.

— Such test programs may contain testing that exceeds the Rule requirement; howevethat the rule requirements are complied with, as a minimum.

— Although most equipment will normally have undergone shop testing at the manufbeen damaged under transportation and has been assembled, installed and integratefabrication and installation onboard can be considerable.

— Functional testing of systems is to be carried out, as far as possible, under working— SIT test to be carried out.— In connection with installation of heavy equipment, special attention should be paid— Units with DRILL / DRILL(N) class should have equipment lists for all category I e

with name of maker and equipment.— A copy of all the PC’s shall be filed at the local station.— DNV-OS-E101 makes reference to other standards. In particular, A101 and Escape

a problem on site.— Communication / PA is not addressed.

Drilling Structures – Derrick

DNV-OS-E101Ch.2 Sec.5B100

— Confirm satisfactory fastening of derrick fixtures, special attention to fixation and s

Drill floor and sub-structures

DNV-OS-E101Ch.2 Sec.5B300 / B400

— Check satisfactory sea-fastening arrangement.— Lifting lugs / pad eyes, if covered by Class.

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and C/K connections. Testing should be carried out at

, suitably anchored to the test stump).safe valves (using the accumulator system, not only the

l or computer based BOP control systems.et.

e with required volume.e, low manifold pilot pressure, low fluid level, autostart

ogen charging side.

pletely draining the units and witnessing a sudden

nels are powered by 24V DC batteries, which are w uninterrupted operation by the batteries.

nnular and mud system valves).ssure.

ting unit), including starting the pump and the alignment

ping and flexible hoses.

Well Control Systems –

Blowout Preventer Stack

DNV-OS-E101 Ch.2 Sec.5C200


— Leak / pressure test to demonstrate function of rams, annular elements, valve gateslow pressure (2-300 psi) and rated working pressure.(Note: For testing of the pipe rams and annulars, a suitable test tool should be used

— Complete function testing of the BOP including all preventers, connectors and fail-stack-mounted accumulators).

Well Control Systems –Blowout Control System



— Leak / pressure testing of installed hoses and piping.— Operate all BOP functions from main control station and remote locations.— Confirm satisfactory operation from either pod.— Verify independence of the two mutually independent control systems for electrica— Verify that the system resumes normal operation automatically when started or res— Check flow rates and response times.— Check actual volumetric capacity of accumulator unit (usable volume) and compar— Check alarms (visual and audible) for low accumulator pressure, low rig air pressur

/ autostop of pumps, and loss of power supply.— Check function in emergency shutdown situations.— Test acoustic panel (if installed).— Check calibration of manometers and thermometers.— Confirm safety valves (or temperature sensitive fuse plugs) on the accumulator nitr— Check calibration of pressure gauge flow meters.— Check operation of the regulator for closing pressure in case of loss of rig air.— Confirm pre-charge pressure of the accumulators. This can be accomplished by com

pressure drop when they are emptied. — Confirm emergency power supply for remote panel operation. Normally, remote pa

continuously trickle charged. Confirm that loss of charging will give alarm but alloWell Control Systems –Diverter


— Function test dogs on fixed support housing.— Leak test to confirm tightness of seals.— Operate all functions from main and remote panels.— Confirm valve sequence interlock (opening of overboard valve prior to closure of a

Well Control Systems – Choke and Kill System

DNV-OS-E101Ch.2 Sec.5C400

— Valve seat sealing test at low pressure (approx. 200-300 psi) and rated working pre— Confirm operation of manual and remote chokes.— Confirm that manifold gauges and driller’s gauges correctly calibrated. — Function test of the Emergency Circulation Pump (normally the diesel driven cemen

/ operation of necessary valves under a (simulated) Black-Ship condition.— Pressure testing to maximum working pressure, including all high pressure (HP) pi— Confirm calibration of manometers and thermometers.

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s;

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achinery.

achinery.

ydraulic PSVs).

Marine Riser System –Workover Riser System



— Riser joints:

- Visual inspection to confirm no damage to sealing surfaces or distortion of pipe- Pressure test to max working pressure (of choke, kill and booster lines).

— Telescopic joint:

- Visual inspection to confirm no damage to sealing surfaces or distortion of pipe- Pressure test to confirm sealing at gooseneck connections.

— Flex joint:

- Visual inspection to confirm no damage to sealing surfaces or distortion of pipe- Pressure test to confirm sealing.

— Riser wellhead connector:

- Function testing of mechanisms for lock, unlock and disconnect; - Leak / pressure testing of control hoses.

Heave Compensating System

DNV-OS-E101Ch.2 Sec.5 D200

— Pressure testing to max working pressure of installed piping and flexible hoses.— Confirm full extension of hydraulic cylinders.— Confirm safety valve setting.— Confirm operation and safety features of any dedicated compressors or auxiliary m— Confirm operation of main valve control and indicators (weight and pressure).— Confirm operation of isolation valve control and indicators.— Confirm alignment and spacing of crown block guide wheels.— Confirm operation of crown position indicator.

Riser Tensioning System

DNV-OS-E101Ch.2 Sec.5D300

— Pressure testing of installed piping and flexible hoses.— Stroking of tensioners to confirm free movement.— At full stroke, apply full system air pressure and check for leaks.— Confirm safety valve setting.— Alignment and free movement of sheaves to be confirmed.— Retractable sheaves to be load tested at full extension. — Operation of hydraulic and pneumatic systems to be confirmed.— Check clamping of wires to be carried out satisfactorily.— Confirm operation and safety features of any dedicated compressors or auxiliary m— Verify proper functioning of slingshot valves.— Perform a function test on the tripsaver trolley over the full track length.— Perform a load test on the tripsaver trolley.— Confirm operation of limit switches, bumper stops, and parking bolts.

Hoisting Equipment

DNV-OS-E101Ch.2 Sec.5E100 / E200

— Confirm satisfactory fastening of derrick fixtures.— Confirm satisfactory functioning of guide dollies (especially retractable dollies).— Check calibration of deadline, load cell, etc.— Confirm correct torque of deadline clamp bolts.— Confirm operation of draw works main and auxiliary brakes.— Confirm operation of crown saver device.— Load test air winches to confirm correct installation and anchoring.— Confirm calibration and sealing of load limiting valves (air pressure regulators or h

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t slow speed through the entire operating range.

adius, shall generally be performed with the appropriate

ersed and travelled over the full length of their track.

raulic PSVs).

Rotating Equipment

DNV-OS-E101Ch.2 Sec.5E100 / E300

— Confirm operation of rotary table safety features (e.g. purge).— Confirm calibration of driller’s console torque and RPM.

BOP and Pipe Handling Equipment

DNV-OS-E101Ch.2 Sec.5 F100

— All lifting appliances shall be tested in “as installed” condition prior to first use.— Load test as applicable.— Load test of pipe handling crane. The test load shall be hoisted, slewed and luffed a— Function testing of all safety features.— Check operation of parking bolts, limit switches, and bumper stops.— Confirm hoisting and traversing over full track length.— Tests for lifting appliances where safe working load (SWL) varies with operating r

test load at maximum, minimum and at an intermediate radius.— Function test upper racking arm in all positions.— Test operation of spears.— Function test intermediate racking arm.— Confirm operation of standby cylinder under load.— Confirm operation of drill floor manipulator arm.— Confirm operation and safety features of hydraulic power unit.— Perform functional test of fingerboard.

BOP Overhead Crane


— All lifting appliances shall be tested in “as installed” condition prior to first use.— Load test of main and auxiliary hoists. Check main girder for excessive deflection.— Gantry and travelling cranes together with their trolleys, as applicable, shall be trav— Check hose reel operation.— Pressure test installed high pressure (HP) piping.— Check operation of parking bolts, limit switches, and bumper stops.— Check calibration and sealing of load limiting valves (air pressure regulators or hyd

BOP Bulkhead Guide


— Check traversing operation.— Check hose reel operation.— Check gripper function.— Check parking bolt function.— Check operation of hydraulic cylinders.— Check parking bolt arrangement.— Check unobstructed travel of frames.

BOP Baseplate Trolley


— Perform load test, especially in cantilevered position.— Confirm travel from storage position to cantilevered position.— Confirm operation of hose reels.— Confirm operation of parking bolt arrangement.

BOP Carrier and Skid


— Function test BOP carrier or skid with BOP installed over full track length.— Confirm function of sea fastening equipment.— Confirm operation of hose reels.— Confirm operation of limit switches, bumper stops, parking bolts.

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tanks safety valves / rupture discs.es.

confirmed at low pressure (2-300 psi) and rated working

f Kelly Cocks, IBOP, and valves in drill string.

t low pressure (2-300 psi) and rated working pressure.

, high cooling water temperature, and low lube oil

gine is to be reviewed to ensure that the engines can start es, if fitted between start air bottles and rig air systems. be tested. Typically, these are lube oil low pressure,

to (i.e. burner boom or open air).

. s and rig side, and fire monitors.

eight of burner and spreader.

Bulk Storage, Mud and Cementing System –

Bulk Storage

DNV-OS-E101Ch.2 Sec.5G100 / G200

— Pressure test to max working pressure (WP) of installed piping.— Pressure test pressure vessels to max WP.— Confirm operation and safety features of any dedicated compressors.— Confirm bulk transfer routes operate satisfactorily (may use air as medium).— Confirm operation of remote control valves and control panels.— Confirm safety valve setting.— Confirm operation of instrumentation (level alarms).— Confirm possibility to purge vent lines to prevent clogging on discharge side of the


Mud System


— Pressure testing to max working pressure (WP) of installed piping and flexible hos— Pressure test pressure vessels to max WP.— Pressure testing of standpipe manifold and mud system valves. Valve seat seal to be

pressure.— Calibration of mud standpipe gauges and driller’s gauges to be confirmed.— Perform pressure test of rotary hose and swivel.— Confirm mud pump safety valve setting.— Confirm system for monitoring mud return flow rate.— Function test and pressure test, both low pressure (LP, 200-300psi) and max WP, o


Cementing System


— If the cement unit is the emergency pump, confirm crossover to mud system.— Pressure test to max working pressure (WP) of installed piping and flexible hoses.— Pressure test cement manifold and system valves. Valve seat seal to be confirmed a— Confirm pressure safety valve settings.— Confirm calibration of manifold gauges and driller’s gauges.— Safety functions of diesel engine to be tested (overspeed, high exhaust temperature

pressure).— If the cement pump is the emergency kill pump, the starting system for the diesel en

without use of the rig’s air system. Special attention is to be paid to non-return valvFor diesel engines located in zone 2 areas, the safety functions on the engine are tocooling water high temperature and the overspeed trips.

— Confirm insulation of the exhaust gas manifold.Well Testing and Associated Well Control System

DNV-OS-E101 Ch.2 Sec.5H200

— Pressure test to max working pressure (WP) of installed piping and flexible hoses.— Pressure test pressure vessels to max WP.— Confirm settings of safety valves and where the discharge from the valve proceeds— Confirm safety features (e.g. level controls, fire and gas detection).— Complete a full functional testing of the associated safety systems and ESD system— Perform a function test of the fixed deluge system, cooling system on burner boom— Verify drainage system in well test area.— Confirm calibration of manifold gauges and control room gauges.— Confirm operation and safety features of any dedicated compressors.— The burner boom shall be tested with an overload of 25% related to the required w

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erating range, as applicable, for the lifting appliance in

working load (SWL).

r open sea).

nch drum at the lowest possible operating position.

orking load (SWL).

, these valves shall be capable of being operated from a ion.neumatic) shall not cause:

water system for propulsion and power generating

nufacturer at a pressure equal to 1.5 times the nominal temperature). The following regulations are required:

;not be less than five (5) bar; hydrostatically tested at a pressure equal to five (5) bar

ted in accordance with the following:

ompressed air pipes and feed pipes of class III - 1.5

ed working pressure by more than 70 bar.re, minimum six (6) bar, minimum duration one (1) hour.

tested under working conditions. / station - positive remote confirmation of the same.

Man Riding Equipment

DNV-OS-E101Ch.2 Sec.5I100 – I500

— All lifting appliances shall be tested in “as installed” condition prior to first use.— The test load shall be hoisted, slewed and luffed at slow speed through the entire op

question.— Perform static brake capacity test for all brakes operating simultaneously at 2 ´ safe— Perform static brake capacity test for each individual brake at 1.8 ´ SWL.— Perform dynamic brake capacity test for each individual brake at 1.25 ´ SWL.— Confirm operation of two independent locking devices.— Confirm emergency stop function. — Confirm that system is reset to function after an emergency stop.— Confirm that slack wire detection is functioning.— Confirm that load limiting devices and limit switches are functioning.— Confirm override possibilities between local and remote controls.— Confirm functioning of emergency hoisting system (if operating under deck or ove— Confirm emergency lowering and hoisting functionality.— Confirm that at least three (3) turns of wire rope is remaining on the man riding wi

Other Systems –

Winches

DNV-OS-E101Ch.2 Sec.5F100

— Perform load test.— Function test skid or carrier with overload over full track length.— Confirm operation of limit switches, bumper stops, parking bolts.

DNV-OS-E101Ch.2 Sec.5J100

— Perform load test.— Confirm that winches are shielded for personnel protection and marked with safe w— Confirm correct function of operating handle or equivalent (e.g. push buttons).— Confirm functionality of automatic brake.— Confirm emergency lowering function of the lifting device.— Confirm load limit device and pressure safety valve setting.

High Pressure Piping –

All Piping Systems

DNV-OS-D101Ch.2 Sec.2 E200

DNV-OS-D101Ch.2 Sec.6F100, F200 and G100

— Where valves are provided at watertight boundaries to maintain watertight integritycontrol room. Valve position indicators shall be provided at the remote control stat

— For remotely controlled valves, failure in power supply (electrical, hydraulic, and p

- Opening of closed valves, closing of open valves on fuel oil tanks and in coolingmachinery.

— Hydrostatic testing - all valve bodies shall be subject to a hydrostatic test by the mapressure (the nominal pressure is the maximum allowable working pressure at room

- The test pressure need not be more than 70 bar in excess of the nominal pressure- For valves fitted on unit or installation’s side and bottom, the test pressure shall - For butterfly valves fitted on unit or installation’s side and bottom, shall also be

applied independently on each side of the closed disc.

— Hydrostatic testing after assembly onboard - The piping shall be hydrostatically tes

- Fuel oil piping, heating coils in tanks, bilge, ballast and fire pipes, steam pipes, cmaximum working pressure, minimum four (4) bar.

- Hydraulic piping - 1.5 maximum working pressure. Test pressure need not exce- Piping systems made from non-metallic material - 1.5 maximum working pressu

— All piping systems shall be properly flushed, checked for leakage and functionally — Function testing of closure devices i.w.o. watertight boundaries from control room

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ch spool and weld joint. This recording should contain ness testing (for sour service), pressure testing, NDE and

dules and rating.ing of latest revision.ked.n tag weld, bevel configuration and cleanliness. piping with poor weldability and heavy thickness.ion lines at the surface of the welds, should not be less ould be sufficient to avoid high preheating temperatures

steel bulkheads. No welding is to be performed in high

e given expansion possibilities. For such pipes, the

tomation and safety systems and shall include:

her with establishment of correct parameters for

of systems, including the ability of the automation and tolerances and carry out all safety / protective actions;

lation systems. The tests should demonstrate that the eration (as required in the relevant application standard), of the approved test programme shall be kept on the

pproval centre.d with maximum return flow to verify that return headers ormance. fail safe operation, tests shall include verification of

High Pressure Piping –

General

DNV-OS-E101Ch.2 Sec.3B100 – B500

— Monitor the yard’s system to document the fabrication process with reference to eamaterial verification status, fit-up, edge penetration, WPS number, stress relief, hardfinal inspection.

— All piping including fittings, flanges, valves, etc., shall be checked for correct sche— Dimensions of all prefabricated pipework are to be checked against the spool draw— Confirm that flanges are square to pipework. The flange face flatness shall be chec— The fit-up shall be checked with particular attention to alignment, root gap, crack i— Special attention should be paid to systems which may be assembled of fittings and— The distance between two buttwelds, defined as the minimum distance between fus

than ten times the wall thickness, minimum 50 mm. In addition, the weld distance sh(100°C) on completed welds.

— Special attention should also be paid to penetration of high pressure pipes through pressure pipes.\

— In areas where the temperatures are fluctuating (e.g. on deck), pipe lengths are to bflexibility of support is important.

— Pressure testing is to be witnessed.Electrical Systems and Components

DNV-OS-E101Ch.2 Sec.4 B100

See section on Electrical Installations for requirements.

Instrumentation, Control and Monitoring Systems

DNV-OS-E101Ch.2 Sec.4 C100

— See section on Instrumentation and Telecommunication systems for requirements.— On-board testing shall demonstrate, verify and document full functionality of all au

- During installation, the correct function of individual equipment packages, togetautomation and safety (time constants, set points, etc.);

- During installation and sea trials, the correct function of systems and integrationsafety systems to keep any equipment under control (EUC) within the specified

- The correct distribution, protection and capacity of power supplies;- Back-up and emergency automation and safety functions for essential unit/instal

essential installation functions are operable on the available back-up means of opand in a situation where the normal system is disabled as far as practical. A copyinstallation, completed with final set points.

— The test program for harbour and sea trials shall be approved prior to tests by the A— Hydraulic automation and shut-down systems with on or off regulation shall be teste

are adequately sized and free of blockages which could prevent correct system perf— For pneumatic and hydraulic automation systems with accumulators used to ensure

accumulator charge level and capacity.

offshore classification projects

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