RULES FOR BUILDING AND CLASSING UNDERWATER VEHICLES, SYSTEMS AND HYPERBARIC FACILITIES 2002 NOTICE NO. 5 January 2008 The following Rule Changes were approved by the ABS Rules Committee on 7 June 2007 and become EFFECTIVE AS OF 1 JANUARY 2008. (See http://www.eagle.org/absdownloads/index.cfm for the consolidated version of the Rules for Building and Classing Underwater Vehicles, Systems and Hyperbaric Facilities, 2002, with all Notices and Corrigenda incorporated.) Notes - The date in the parentheses means the date that the Rule becomes effective for new construction based on the contract date for construction, unless otherwise noted. (See 1-1-4/3.3 of the ABS Rules for Conditions of Classification (Part 1).) Note Regarding the Changes to Section 1 For the 2008 edition, Section 1, Conditions of Classification was consolidated into a generic booklet, entitled Rules for Conditions of Classification (Part 1) for all vessels other than those in offshore service. The purpose of this consolidation was to emphasize the common applicability of the classification requirements in Section 1 to ABS-classed vessels, other marine structures and their associated machinery, and thereby make Conditions of Classification more readily a common Rule of the various ABS Rules and Guides, as appropriate. As a result of this consolidation, those Sections of Part 1 which are now included in the generic booklet are deleted or revised as follows. (Add new paragraph to the Foreword, as follows.) Note Regarding the Changes to Section 1 (1 January 2008) For the 2008 edition, Section 1, Conditions of Classification was consolidated into a generic booklet, entitled Rules for Conditions of Classification (Part 1) for all vessels other than those in offshore service. The purpose of this consolidation was to emphasize the common applicability of the classification requirements in Section 1 to ABS-classed vessels, other marine structures and their associated machinery, and thereby make Conditions of Classification more readily a common Rule of the various ABS Rules and Guides, as appropriate. ABS RULES FOR BUILDING AND CLASSING UNDERWATER VEHICLES, SYSTEMS AND HYPERBARIC FACILITIES. 2002 1
SECTION 1 SCOPE AND CONDITIONS OF CLASSIFICATION 1 Classification (1 January 2008) (Delete entire existing text of Subsection 1/1 and replace with the following:) The requirements for conditions of classification are contained in the separate, generic ABS Rules for Conditions of Classification (Part 1). Additional requirements specific to underwater vehicles, systems, and hyperbaric facilities are contained in the following portions of this Section. (Delete entire existing Subsection 1/3.) 3 Classification Symbols and Notations (1 January 2008) (Renumber Subsection 1/5 as Subsection 1/3. Add the following new text before Paragraph 1/3.1.) A listing of Classification Symbols and Notations available to the Owners of vessels, offshore drilling and production units and other marine structures and systems, List of ABS Notations and Symbols is available from the ABS website http://www.eagle.org/absdownloads/index.cfm. The following notations are specific to underwater vehicles, systems and hyperbaric facilities. (Paragraphs 1/3.1 through 1/3.7 remain unchanged.) 5 Rules for Classification (1 January 2008) (Renumber Subsection 1/7 as Subsection 1/5. Delete Paragraphs 1/5.3 through 1/5.7.) (Delete entire existing Subsections 1/9 and 1/11.) 7 Submissions of Plans, Calculations, Data and Test Results (Renumber Subsection 1/13 as Subsection 1/7.) 7.3 Documentation to be Submitted (2002) (Add new Subparagraph 1/7.3.5, as follows.) 7.3.5 Support Systems Provided by Diving Vessels (2008) Drawings, specifications, data and calculations are to be submitted for all support systems provided by the diving vessel for all diving systems classed in accordance with these Rules. Support systems include electrical power systems, compressed air systems, hydraulic systems, deck foundations and under deck supporting structure that are supplied by the diving vessel and not an integrated part of the diving system. 2 ABS RULES FOR BUILDING AND CLASSING UNDERWATER VEHICLES, SYSTEMS AND HYPERBARIC FACILITIES. 2002
For diving systems installed on ABS classed vessels these support systems are to be in accordance with the Steel Vessel Rules. When an ABS-classed diving system is installed on non-abs-classed vessel, documentation that these systems have been reviewed and approved by the Society classing the diving vessel is to be provided. Alternatively the details may be provided to the Bureau for review. 9 Manuals (Renumber Subsection 1/15 as Subsection 1/9.) (Delete entire existing Subsection 1/17.) 11 Personnel (Renumber Subsection 1/19 as Subsection 1/11.) (Delete entire existing Subsections 1/21 through 1/25.) SECTION 3 GENERAL REQUIREMENTS AND SAFEGUARDS 17 Buoyancy, Emergency Ascent, and Stability 17.1 Submersibles and Other Untethered Units (2002) (Revise Subparagraph 3/17.1.1, as follows.) 17.1.1 Normal Ballast System (2008) Each manned unit is to be fitted with a ballast system capable of providing normal ascent and descent and necessary trim adjustments. Ballast tanks that are subjected to internal or external pressure are to comply with the requirements of Section 6. Two independent means of deballasting are to be provided; one is to be operable with no electric power available. Consideration will be given on case-by-case basis for both means of deballasting to be operated electrically, provided both means are completely independent (i.e., they have two independent power sources, separate wiring, separate actuators or motors, etc.). ABS RULES FOR BUILDING AND CLASSING UNDERWATER VEHICLES, SYSTEMS AND HYPERBARIC FACILITIES. 2002 3
SECTION 4 MATERIALS 3 Pressure Boundary Material Specifications 3.1 Plates (Delete Grade CS from Item 4/3.1i), as follows.) i) Steel (2008): ABS Hull Grades E, EH32, EH36; U.S. Navy Grades HY-80 and HY-100 per MIL-S-16216; ASTM A516 Grades 55, 60, 65, 70; ASTM A537 Class 1 and 2; ASTM A517 Grades, A, B, E, F, J (Items ii) though v) remain unchanged.) APPENDIX 4 CERTIFICATION OF HANDLING SYSTEMS 3 Definitions (Delete Paragraph A4/3.3 and title of Paragraph A4/3.5. Renumber Subparagraphs A4/3.5.1 and A4/3.5.2 as A4/3.3 and A4/3.5, respectively, and revise as follows.) 3.3 Design Load (2008) The maximum expected load, including dynamic effects, on the handling system which is an appropriate combination of the rated load, weight of equipment to be lifted and rigging, wind load, drag, added mass effect, and weight of entrained mud and water. See also Subsection A4/9. 3.5 Rated Load The rated load is the maximum weight that may be lifted by the assembled handling system at its rated speed and under the parameters specified in the equipment specifications (e.g., hydraulic pressures, electrical current, electrical voltages, etc.). 3.7 Rigging (2008) (Revise Paragraph A4/3.7, as follows.) Running rigging consists of the rope (wire rope or synthetic line) that passes over sheaves or through rollers and intended to handle underwater systems. Standing rigging is rope that is stationary and provides mechanical support to the handling system. 4 ABS RULES FOR BUILDING AND CLASSING UNDERWATER VEHICLES, SYSTEMS AND HYPERBARIC FACILITIES. 2002
5 Submission of Plans, Calculations and Data 5.1 Plans (Revise first bullet of Paragraph A4/5.1, as follows.) (2008) General arrangements showing equipment locations, indicating safe working loads for each system component and rated load for the system (Preceding text and all other bullets remain unchanged.) 9 Design 9.1 Factors of Safety (Revise Subparagraphs A4/9.1.1 and A4/9.1.2, as follows.) 9.1.1 Wire Rope (2008) The factor of safety for rotating running rigging is to be not less than 4.7 and for rotation resistant running rigging in an unrestrained mode not less than 6.1. The factor of safety for standing rigging is to be not less than 4.0. These factors of safety are to be based on the design load of the system versus the nominal breaking strength of the rope. 9.1.2 Fiber and Synthetic Rope (2008) Safety factors for fiber and synthetic rope except nylon are to be not less than 7.0 for running rigging and 5.0 for standing rigging based on the design load of the system versus the nominal breaking strength of the rope. Safety factors for nylon rope are to be not less than 9.0 for running rigging and 7.0 for standing rigging. (Revise title of Paragraph A4/9.3, as follows. Text and subparagraphs remain unchanged.) 9.3 Design Loads (2008) 27 Functional Test (2008) (Revise Subsection A4/27, as follows.) Prior to the system being placed in service, the system is to be tested with a load equal to 125 percent of the rated load in the presence of the Surveyor. Satisfactory operation of power drives, emergency lifting devices, and brakes is to be demonstrated. After being tested, the system with all its components is to be examined visually for permanent deformation and failure. A copy of the certificate of tests witnessed and issued by the Surveyor is to be attached to the Record of Certification. ABS RULES FOR BUILDING AND CLASSING UNDERWATER VEHICLES, SYSTEMS AND HYPERBARIC FACILITIES. 2002 5