NR467_Amendments to Parts B, D, E_June2007

Rules for the Classification of Steel Ships NR 467 AMENDMENTS June 2007 These sheets contain amendments within the following Sections of the April 2007 issue of the Rules for the Classification of Steel Ships. These amendments are effective from July 1st, 2007. Part Volume Chapter Section Part B NR 467 B2 DT R03E Ch 6 Ch 7 Ch 8 Sec 2 Sec 2, Sec 4 Sec 4 Part B NR 467 B3 DT R03E Ch 9 Sec 1, Sec 2 Part D NR 467 D3 DT R03E Ch 20 Ch 21 Sec 3 Sec 2 Part E NR 467 E2 DT R03E Ch 6 Ch 10 Sec 1, Sec 2, Sec 4 Sec 11 ARTICLE 1 1.1. - BUREAU VERITAS is a Society the purpose of whose Marine Division (the “Society”) is the classifi- cation (“Classification”) of any ship or vessel or structure of any type or part of it or system therein collec- tively hereinafter referred to as a “Unit” whether linked to shore, river bed or sea bed or not, whether operated or located at sea or in inland waters or partly on land, including submarines, hovercrafts, drilling rigs, offshore installations of any type and of any purpose, their related and ancillary equipment, subsea or not, such as well head and pipelines, mooring legs and mooring points or otherwise as decided by the So- ciety. The Society: • prepares and publishes Rules for classification, Guidance Notes and other documents (“Rules”); • issues Certificates, Attestations and Reports following its interventions (“Certificates”); • publishes Registers. 1.2. - The Society also participates in the application of National and International Regulations or Standards, in particular by delegation from different Governments. Those activities are hereafter collectively referred to as “Certification”. 1.3. - The Society can also provide services related to Classification and Certification such as ship and com- pany safety management certification; ship and port security certification, training activities; all activities and duties incidental thereto such as documentation on any supporting means, software, instrumentation, measurements, tests and trials on board. 1.4. - The interventions mentioned in 1.1., 1.2. and 1.3. are referred to as “Services”. The party and/or its representative requesting the services is hereinafter referred to as the “Client”. The Services are prepared and carried out on the assumption that the Clients are aware of the International Maritime and/or Offshore Industry (the “Industry”) practices. 1.5. - The Society is neither and may not be considered as an Underwriter, Broker in ship’s sale or charter- ing, Expert in Unit’s valuation, Consulting Engineer, Controller, Naval Architect, Manufacturer, Shipbuilder, Repair yard, Charterer or Shipowner who are not relieved of any of their expressed or implied obligations by the interventions of the Society. ARTICLE 2 2.1. - Classification is the appraisement given by the Society for its Client, at a certain date, following sur- veys by its Surveyors along the lines specified in Articles 3 and 4 hereafter on the level of compliance of a Unit to its Rules or part of them. This appraisement is represented by a class entered on the Certificates and periodically transcribed in the Society’s Register. 2.2. - Certification is carried out by the Society along the same lines as set out in Articles 3 and 4 hereafter and with reference to the applicable National and International Regulations or Standards. 2.3. - It is incumbent upon the Client to maintain the condition of the Unit after surveys, to present the Unit for surveys and to inform the Society without delay of circumstances which may affect the given appraisement or cause to modify its scope. 2.4. - The Client is to give to the Society all access and information necessary for the performance of the requested Services. ARTICLE 3 3.1. - The Rules, procedures and instructions of the Society take into account at the date of their preparation the state of currently available and proven technical knowledge of the Industry. They are not a code of con- struction neither a guide for maintenance or a safety handbook. Committees consisting of personalities from the Industry contribute to the development of those documents. 3.2. - The Society only is qualified to apply its Rules and to interpret them. Any reference to them has no effect unless it involves the Society’s intervention. 3.3. - The Services of the Society are carried out by professional Surveyors according to the Code of Ethics of the Members of the International Association of Classification Societies (IACS). 3.4. - The operations of the Society in providing its Services are exclusively conducted by way of random inspections and do not in any circumstances involve monitoring or exhaustive verification. ARTICLE 4 4.1. - The Society, acting by reference to its Rules: • reviews the construction arrangements of the Units as shown on the documents presented by the Client; • conducts surveys at the place of their construction; • classes Units and enters their class in its Register; • surveys periodically the Units in service to note that the requirements for the maintenance of class are met. The Client is to inform the Society without delay of circumstances which may cause the date or the extent of the surveys to be changed. ARTICLE 5 5.1. - The Society acts as a provider of services. This cannot be construed as an obligation bearing on the Society to obtain a result or as a warranty. 5.2. - The certificates issued by the Society pursuant to 5.1. here above are a statement on the level of compliance of the Unit to its Rules or to the documents of reference for the Services provided for. In particular, the Society does not engage in any work relating to the design, building, production or repair checks, neither in the operation of the Units or in their trade, neither in any advisory serv- ices, and cannot be held liable on those accounts. Its certificates cannot be construed as an implied or express warranty of safety, fitness for the purpose, seaworthiness of the Unit or of its value for sale, insurance or chartering. 5.3. - The Society does not declare the acceptance or commissioning of a Unit, nor of its construc- tion in conformity with its design, that being the exclusive responsibility of its owner or builder, re- spectively. 5.4. - The Services of the Society cannot create any obligation bearing on the Society or constitute any war- ranty of proper operation, beyond any representation set forth in the Rules, of any Unit, equipment or ma- chinery, computer software of any sort or other comparable concepts that has been subject to any survey by the Society. ARTICLE 6 6.1. - The Society accepts no responsibility for the use of information related to its Services which was not provided for the purpose by the Society or with its assistance. 6.2. - If the Services of the Society cause to the Client a damage which is proved to be the direct and reasonably foreseeable consequence of an error or omission of the Society, its liability towards the Client is limited to ten times the amount of fee paid for the Service having caused the damage, pro- vided however that this limit shall be subject to a minimum of eight thousand (8,000) Euro, and to a maximum which is the greater of eight hundred thousand (800,000) Euro and one and a half times the above mentioned fee. The Society bears no liability for indirect or consequential loss such as e.g. loss of revenue, loss of profit, loss of production, loss relative to other contracts and indemnities for termination of other agreements. 6.3. - All claims are to be presented to the Society in writing within three months of the date when the Serv- ices were supplied or (if later) the date when the events which are relied on of were first known to the Client, and any claim which is not so presented shall be deemed waived and absolutely barred. ARTICLE 7 7.1. - Requests for Services are to be in writing. 7.2. - Either the Client or the Society can terminate as of right the requested Services after giving the other party thirty days' written notice, for convenience, and without prejudice to the provisions in Article 8 hereunder. 7.3. - The class granted to the concerned Units and the previously issued certificates remain valid until the date of effect of the notice issued according to 7.2. hereabove subject to compliance with 2.3. hereabove and Article 8 hereunder. ARTICLE 8 8.1. - The Services of the Society, whether completed or not, involve the payment of fee upon receipt of the invoice and the reimbursement of the expenses incurred. 8.2. - Overdue amounts are increased as of right by interest in accordance with the applicable leg- islation. 8.3. - The class of a Unit may be suspended in the event of non-payment of fee after a first unfruitful notification to pay. ARTICLE 9 9.1. - The documents and data provided to or prepared by the Society for its Services, and the information available to the Society, are treated as confidential. However: • Clients have access to the data they have provided to the Society and, during the period of classification of the Unit for them, to the classification file consisting of survey reports and certificates which have been prepared at any time by the Society for the classification of the Unit ; • copy of the documents made available for the classification of the Unit and of available survey reports can be handed over to another Classification Society Member of the International Association of Classi- fication Societies (IACS) in case of the Unit’s transfer of class; • the data relative to the evolution of the Register, to the class suspension and to the survey status of the Units are passed on to IACS according to the association working rules; • the certificates, documents and information relative to the Units classed with the Society may be reviewed during IACS audits and are disclosed upon order of the concerned governmental or inter-gov- ernmental authorities or of a Court having jurisdiction. The documents and data are subject to a file management plan. ARTICLE 10 10.1. - Any delay or shortcoming in the performance of its Services by the Society arising from an event not reasonably foreseeable by or beyond the control of the Society shall be deemed not to be a breach of con- tract. ARTICLE 11 11.1. - In case of diverging opinions during surveys between the Client and the Society’s surveyor, the So- ciety may designate another of its surveyors at the request of the Client. 11.2. - Disagreements of a technical nature between the Client and the Society can be submitted by the Society to the advice of its Marine Advisory Committee. ARTICLE 12 12.1. - Disputes over the Services carried out by delegation of Governments are assessed within the frame- work of the applicable agreements with the States, international Conventions and national rules. 12.2. - Disputes arising out of the payment of the Society’s invoices by the Client are submitted to the Court of Nanterre, France. 12.3. - Other disputes over the present General Conditions or over the Services of the Society are exclusively submitted to arbitration, by three arbitrators, in London according to the Arbitration Act 1996 or any statutory modification or re-enactment thereof. The contract between the Society and the Client shall be governed by English law. ARTICLE 13 13.1. - These General Conditions constitute the sole contractual obligations binding together the Society and the Client, to the exclusion of all other representation, statements, terms, conditions whether express or implied. They may be varied in writing by mutual agreement. 13.2. - The invalidity of one or more stipulations of the present General Conditions does not affect the va- lidity of the remaining provisions. 13.3. - The definitions herein take precedence over any definitions serving the same purpose which may appear in other documents issued by the Society. MARINE DIVISON GENERAL CONDITIONS BV Mod. Ad. ME 545 j - 16 February 2004 Part B Amendments June 2007 Bureau Veritas 3 Amendments to PART B Ch 6, Sec 2, [3.2.1] Replace “normal stresses” by “shear stresses” in the first paragraph. Ch 7, Sec 2, [3.4.2] Replace the formula giving the maximum normal stress σ by the following one: Ch 7, Sec 2, [3.4.3] Replace the formula giving the maximum normal stress σ by the following one: Ch 7, Sec 2, [3] Multiply the formulae giving the net section modulus w in requirements [3.7.3], [3.7.4], [3.8.3], [3.8.4], [3.9.3], and [3.9.4] by the expression: Ch 7, Sec 4, [3.1.1] Replace the formula giving the elementary fatigue damage ratio Dij by the following one: Delete the definition of symbol βIF. Delete Table 8. Delete the paragraph below Table 8: “The grinding method ... and root cracking”. σ βbγS2 pS γW2pW+12w---------------------------------- 1 s 2� ------ – � � � � s�2103 σX1+= σ λbβbγS2pS γW2 pW+12w---------------------------------- 1 s 2� ------ – � � � � s�2 103= 1 s 2� ------ – � � � � Dij Nt Kp ----- ∆σN ij,( )3 pRln–( )3 ξ⁄ -------------------------- µ ij ΓC 3 ξ--- 1+= Part B 4 Bureau Veritas Amendments June 2007 Ch 7, Sec 4, [3.1.2] Replace the formula giving the cumulative damage ratio D by the following one: Add the following definition at the end of the symbol definition list: βIF : Improvement fatigue life factor for grinding technique, generally to be taken equal to 2,2. Another value may be considered by the Soci- ety on a case-by-case basis. See also Tab 11 for the applicability of the grinding technique. Ch 7, Sec 4, [4.3.1] Replace the definition of symbol KF by the following one: KF : Fatigue notch factor, equal to: for flame-cut edges, KF may be taken equal to the values defined in Tab A, depending on the cut- ting quality, post treatment and control quality. Add the new following Table A: T1 :Table A: KF values Ch 7, Sec 4, [6.2.1] Replace the formula giving the nominal local stress σ� by the following one: Ch 7, Sec 4 Replace Table 11 by the following one: D Kcor β IF--------- αDF 1 α–( )DB+[ ]= KF λ θ30------= Flame-cut edge description KF Machine gas cut edges, with subsequent machining, dressing or grinding 1,4 Machine thermally cut edges, corners removed, no crack by inspection 1,6 Manually thermally cut edges, free from cracks and severe notches 2,0 Manually thermally cut edges, uncontrolled, no notch deeper than 0,5 mm 2,5 σ � γS2pS γW2 pW+ 12w ---------------------------------- 1 s 2� ------ – � � � � s�2 103= Part B Amendments June 2007 Bureau Veritas 5 T2 :Table 11: Weld coefficient λ Weld configuration Coefficient λ Grinding applicableType Description Stress direction Figure Butt weld Parallel to the weld 2,10 yes Perpendicular to the weld 2,40 yes Fillet weld Continuous Parallel to the weld 1,80 yes Perpendicular to the weld (1) 2,15 yes Well contoured end Perpendicular to the weld 2,15 yes Not continuous Parallel to the weld 2,90 yes Lap weld (root cracking) Axial loading out of plane and perpendicular to the weld 4,50 no Cruciform joint Full penetration Perpendicular to the weld 2,10 yes Partial penetration Perpendicular to the weld Toe cracking: 2,10 yes Root cracking: 4,50 no (1) This case includes the hot spots indicated in the sheets of special structural details in Ch 12, Sec 2 relevant to the connections of longitudinal ordinary stiffeners with transverse primary supporting members. Part B 6 Bureau Veritas Amendments June 2007 Ch 8, Sec 4, [3] Multiply, in requirements [3.4.3], [3.4.4], [3.6.3], [3.6.4], [3.7.3], and [3.7.4], the formula giving the net section modulus w by the expression: Ch 9, Sec 1 Multiply, in Table 6, Table 9, Table 10, Table 12 and Table 14, the formula giving the net section mod- ulus w of ordinary stiffeners by the expression: Ch 9, Sec 2 Multiply, in Table 7, the formula giving the net section modulus w of bottom, side and deck ordinary stiffeners by the expression: 1 s 2� ------ – � � � � 1 s 2� ------ – � � � � 1 s 2� ------ – � � � � Part D Amendments June 2007 Bureau Veritas 7 Amendments to PART D Ch 20, Sec 3 Multiply, in Table 32 and Table 33, the formula giving the section modulus w of ordinary stiffeners by the following expression: Ch 21, Sec 2 Multiply, in Table 32 and Table 33, the formula giving the section modulus w of ordinary stiffeners by the following expression: 1 s 2� ------ – � � � � 1 s 2� ------ – � � � � Part E 8 Bureau Veritas Amendments June 2007 Amendments to PART E Ch 6, Sec 1, [1.1.1] Replace the sentence introducing the second bullet list by: The notation COMF is to be completed as follows: Ch 6, Sec 2, [3.2.1] Replace cross-reference “Ch 6, Sec 3, Tab 1” by “Tab 4” in requirement [3.2.1]. Ch 6, Sec 4, [2.1.2] Replace cross-references “Ch 6, Sec 2, Tab 5 and Ch 6, Sec 2, Tab 6” by “Tab 2 and Tab 3” in item b) of requirement [2.1.2]. Ch 6, Sec 4, [2.2.1] Replace cross-reference “Ch 6, Sec 2, Tab 2” by “Tab 1” in the two paragraphs of requirement [2.2.1]. Ch 6, Sec 4, [2.3.1] Replace cross-references “Ch 6, Sec 2, Tab 5 and Ch 6, Sec 2, Tab 6” by “Tab 2 and Tab 3” in requirement [2.3.1]. Ch 6, Sec 4, [3.2.1] Replace cross-reference “Ch 6, Sec 3, Tab 2” by “Tab 4” in requirement [3.2.1]. Chapter 10 Replace Section 11 by the following one. Part E Amendments June 2007 Bureau Veritas 9 SECTION 11 COLD WEATHER CONDITIONS COLD (H tDH, E tDE) 1 General 1.1 Application 1.1.1 The additional class notation COLD (H tDH, E tDE) is assigned, in accordance with Pt A, Ch 1, Sec 2, [6.13.13], to ships operating in cold weather conditions, as defined in [1.1.2], built and fitted with systems and equipment for de- icing complying with the requirements of this Section, where tDH and tDE are defined in [1.1.2] for, respectively, hull and equipment. 1.1.2 Cold weather conditions The requirements of this Section apply to ships intended to operate with the following conditions: • tDH: design temperature, in °C, to be considered for the hull, provided by the ship designer • tDE: design temperature, in °C, to be considered for the equipment, provided by the ship designer • sea water temperature: −2°C • wind speed: 30 knots. 1.1.3 The requirements for the additional class notation COLD (H tDH, E tDE) concern mainly the following functions of the ship and its equipment under cold weather conditions: • decks and superstructures • stability • propulsion • other essential services, as defined in [3] • electricity production • navigation • crew protection. They cover also: • the elimination of ice where necessary for safe access. 1.2 Documentation to be submitted 1.2.1 Plans and documents to be submitted for approval The plans and documents listed in Tab 1 are to be submitted to the Society for approval. 1.2.2 Plans and documents to be submitted for information The plans and documents listed in Tab 2 are to be submitted to the Society for information. 1.2.3 Plans and documents to be kept on board The Owner is to keep on board the ship the following plans and documents and they are to be made available to the Surveyor: • stability manual including loading conditions with ice accretion, • manual for de-icing procedures. Table 1 : Plans and documents to be submitted for approval Table 2 : Plans and documents to be submitted for information Plan or document Distribution of steel qualities in structures exposed to low air temperatures Trim and stability booklet including the additional loading conditions with ice accretion Damage stability calculations when applicable for the loading conditions with ice accretion Compartments containing internal combustion engines, auxiliary systems, HVAC systems: • heat balance for ventilation / air supply to engine turbo-blowers • heat balance for sea water / fresh water cooling circuits • minimum temperatures required for ambient air to ensure