8 2.7-2, 2.22 & dnv houston services_tcm153-474867

DNV Houston 10th October 2011

DNV 2.7-1 & 2.7-3 Seminar

DNV 2.7-2, DNV 2.22 & Container-related services in DNV Houston

Det Norske Veritas AS. All rights reserved.


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Topics Covered DNV 2.7-2 DNV 2.22 and CG3 Certificates DNV Houston Services Q&A



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DNVs Standard for Certification No. 2.7-2

Offshore Service Containers



4Slide 4

General Scope of Standards

DNV 2.7-1:- Container shaped unit- Repeated offshore transportation- Under 25 tonnes- General cargo- Unit capable of transporting dangerous goods

DNV 2.7-2:- Service container for temporary installation (laboratories, control and work vans, etc)- Structural code references DNV 2.7-1

DNV 2.7-3:- No requirements for defined structural geometry- Can be for single installation events- Under 50 tonnes (can be used for container shaped above 25 tonnes)- Designed for specific cargo



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DNVs 2.7-1, 2.7-2 & 2.7-3



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DNVs Standard for Certification 2.7-2 Contains specific requirements for the following, as applicable:

- Structure (References 2.7-1)- Electrical Equipment*- Gas Detection System- Heating, Ventilation & Air Conditioning- Public Address and Main Alarm Systems- Fire Protection- Noise and Vibration

* For electrical equipment in hazardous areas it should be noted that American and European installation codes of practice differ to various extents and therefore should not be mixed. This Certification Note has been directed towards the European practice. However, where equivalence can be demonstrated the American practices and equipment may be accepted. Reference is made to sec 2.4 Alternative certification.



7Slide 7

Service Container



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DNV Standard 2.22 Lifting Appliances



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General- This Standard for Certification provides criteria and guidance for certification and verification

of the design, materials, fabrication, installation, testing and commissioning of lifting appliances

- The Standard for Certification applies to:- shipboard cranes- conventional cargo gear derrick systems and other lifting appliances (cargo ramps and movable decks)

onboard a ship or other floating vessel- offshore cranes- industrial cranes- various types of lifting gear.

- Compliance with 2.22 is required if unit has DNVs Additional Class CRANE



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General (continued)- The Standard for Certification is based on DNVs understanding and interpretation of the ILO

Convention No.152 of 1979.

- A number of bodies, such as Port Authorities, Maritime Authorities, Shelf Authorities and Municipal or Governmental Health and Safety Authorities require that lifting appliances and loose gear shall be certified. Normally, DNVs certification in accordance with this certification standard will satisfy the authorities requirements.



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Systems and Features CoveredAll load-carrying structural members and components.Cargo hooks, blocks, sheaves, lifting beams, ropes and loose gear.Structural integrity of grabs, or other load transferring componentsWinchesSkids & Frames (Lifting/Transportation with issuance of CG-3)Slewing bearing systemPower systemsSafety equipmentProtection against fireSeating and fasteners for prime movers, winches and for bearings of power transmitting

components.Instrumentation and automationElectrical installation



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Skids- Both skids designed for transport of different varying loads as well as skids designed for a

specific load may be certified by DNV.

- For special offshore services one should consider whether certification as offshore portable unit (2.7-3) might be an alternative to certification as loose gear.

- If certification as loose gear is requested, the skid will, in principle, be certified in accordance with the ILO Convention. By DNV, this implies that this Certification Standard will form the basis for certification. The certification work will be documented by DNVs certificate CG3.

- Any limiting design conditions for the operation of the skid shall be defined and annotated on the CG3 and will normally also be required to be included in the marking. This may, in addition to the SWL, include such details as limitations for the centre of gravity of the load and angles of the lifting slings that may be attached.



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CG3 Certificate



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Container-related services by

DNV-Houston



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DNV-Houston Services

Verification- Calculations/Finite Element Analysis and review of manufacturing drawing- Deliverables include Design Verification Report and Design Assessment for Type Approval

Survey- Witness/review of manufacturing process (i.e. material traceability, welding procedures,

load testing, etc)- Deliverables include Survey Reports

Certification- Verification + Survey- Deliverables include Product Certificates and Type Approval Certificate

Dynamic Analysis- Mechanical event simulation for modeling DNV 2.7-3 drop test- May submit .step file for initial analysis or for comparative results- DNV-Houston may model unit for individual assessment



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Certification Process Production Assessment Prefabrication meeting is recommended

- Confirm certification scope of work & deliverables- Discuss design and fabrication issues (conceptual design, technical requirements, issues related to

welding/materials/testing, etc)- Review and Agreed upon Inspection & Test Plan

Scope of survey may include but is not limited to:- Approval of welding procedures- Weld start-up/Welding during fabrication- Verify material traceability- Specifically for 2.7-1, witness of mechanical and chemical testing of padeye material (provided its not

delivered with a 3.2 Certificate) - Witness of testing as applicable (NDT, Pressure Test, Load Test, Prototype Testing, etc)- Review of manufacturing record book- Hard stamping of frame and issuance of decals (2.7-1, 2.7-2, 2.7-3)- Issuance of Product Certificate (or Inspection Release Note if there any outstanding items. Product

Certificate to be issued once the remaining items have been cleared)

Equipment is DNV Certified once a Product Certificate has been issued. Note: a Survey Report is not a Product Certificate!

In some cases (e.g., 2.7-1, 2.7-3), periodic examination and testing is required in order to maintain the validity of the Certificate



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Certification Process - FAQs Once the Product Certificate is issued is that the end of DNVs involvement?

- There are specific requirements in the Standard (e.g., 2.7-1, 2.7-3) for periodic inspection and testing.

Do modifications or repairs invalidate the original certification unless DNV is involved- Yes. DNV must be involved and in some cases the changes must be re-approved (a Survey Report will be issued with

reference to the original Product Certificate)

Can DNV certify existing new or used equipment?- Yes, but it may be a challenge - Additional work, time & cost is probable

Does DNV have requirements for lifting/transportation when equipment is moved from unit to unit?- No, but National Authorities and/or operators may have requirements for certification

Is the certification process different for equipment designed by one company but fabricated by another?- No, the process is the same.

What electrical certification does DNV offer?- DNV can certify equipment/systems to either DNV Standards (e.g, DNV-OS-D201; DNVs Ship Rules Part 4, Ch. 8) or

International Standards (IEC, NEC, etc).- DNV is a Notified Body for various EU Directives, including ATEX (Atmosphere Explosible) Directive, EMC (Electromagnetic

Compatibility) Directive and Low Voltage Directive



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Safeguarding life, property and the environment

www.dnv.com

8 2.7-2, 2.22 & dnv houston services_tcm153-474867

Documents

dnv houston det norske

dnvs certification

alternative certification

certification note

lifting appliances cargo

seminar10dnv standard

seminar8dnv standard

seminar9dnv standard