1、 Guide for Dropped Object Prevention on Offshore Units and Installations GUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS MAY 2017 American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 2017 American Bureau of Shipping. All rights reserved
2、. ABS Plaza 16855 Northchase Drive Houston, TX 77060 USA Foreword Foreword The prevention of dropped objects is an important component of safeguarding personnel, property and the environment. The ABS Guide for Dropped Object Prevention on Offshore Units and Installations has been developed to provid
3、e users with specific guidance and criteria on the dropped object prevention program, which corresponds to a growing industry-wide development to mitigate and eliminate the hazards imposed by dropped objects. This Guide specifies the ABS requirements for an onboard dropped object prevention program
4、to be implemented on an offshore asset, and provides the design requirements for equipment primary securing, secondary retention methods and securing for specific equipment, etc. This Guide is intended for use by installation Owners, Operators, and Companies requesting an optional DOPP or DOPP+ nota
5、tion. The following describes the general scope of the ABS DOPP and DOPP+ notations: i) The ABS DOPP notation is for ABS-classed offshore installations with an onboard dropped object prevention program approved, surveyed, and commissioned in full compliance with the applicable sections of this Guide
6、. ii) The ABS DOPP+ notation is for ABS-classed offshore installations with an onboard dropped object prevention program integrating equipment designs that meet the requirements for primary securing, secondary retention, and specific equipment securing, which are approved, surveyed, and commissioned
7、 in full compliance with this Guide. This Guide is to be used in conjunction with other Rules published by ABS and recognized international Regulations. This Guide becomes effective on the first day of the month of publication. Users are advised to check periodically on the ABS website www.eagle.org
8、 to verify that this version of this Guide is the most current. We welcome your feedback. Comments or suggestions can be sent electronically by email to rsdeagle.org. ii ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 Table of Contents GUIDE FOR DROPPED OBJECT PREVEN
9、TION ON OFFSHORE UNITS AND INSTALLATIONS CONTENTS CHAPTER 1 Scope and Conditiions of Classification 1 Section 1 Classification 2 Section 2 Classification Symbols and Notations 3 Section 3 Rules for Classification 4 Section 4 Plans and Data to be Submitted for Review 5 Section 5 Alternatives 6 Sectio
10、n 6 Acronyms, Abbreviations, Definitions, and References . 7 CHAPTER 2 Onboard Dropped Object Prevention Program . 9 Section 1 General 12 Section 2 Roles and Responsibilities . 16 Section 3 Risk Assessments for Dropped Object Hazards . 18 Section 4 Implementation of Dropped Object Prevention Program
11、 . 24 Section 5 Continual Improvement 32 Appendix 1 Examples of DROP Program Roles and Responsibilities . 35 Appendix 2 Sample Zoning Area 38 Appendix 3 Recommended Practices for Working at Height 42 Appendix 4 Audit of a DROP Program . 46 CHAPTER 3 Equipment Design for Dropped Object Prevention for
12、 DOPP+ Classification 48 Section 1 Introduction 50 Section 2 Risk Assessment for Dropped Objects Hazard for Equipment Design, Installation, and Maintenance 51 Section 3 Equipment Design 56 Section 4 Equipment Installation and Maintenance . 61 ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS
13、AND INSTALLATIONS .2017 iii CHAPTER 4 Surveys . 67 Section 1 Surveys During Manufacture and Installation 68 Section 2 Surveys After Construction and Maintenance of Class . 72 Appendix 1 Procedural Requirements for ABS Recognized Dropped Object Prevention Specialists 76 iv ABSGUIDE FOR DROPPED OBJECT
14、 PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 Chapter 1: Scope and Conditions of Classification CHAPTER 1 Scope and Conditions of Classification CONTENTS SECTION 1 Classification 2 SECTION 2 Classification Symbols and Notations . 3 1 Class Notations . 3 1.1 DOPP Notation 3 1.3 DOPP+ Notation
15、 3 SECTION 3 Rules for Classification . 4 1 General . 4 SECTION 4 Plans and Data to be Submitted for Review 5 1 Submission of Plans . 5 SECTION 5 Alternatives . 6 1 Novel Features 6 3 ABS Type Approval Program 6 3.1 Type Approval . 6 3.3 Unit-Certification 6 SECTION 6 Acronyms, Abbreviations, Defini
16、tions, and References . 7 1 List of Acronyms, Abbreviations, and Definitions . 7 3 References 8 ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 1 Section 1: Classification CHAPTER 1 Scope and Conditions of Classification SECTION 1 Classification The requirements for
17、conditions of classification are contained in the separate, generic ABS Rules for Conditions of Classification of Offshore Units and Structures (Part 1). Additional requirements specific to the dropped objects prevention for offshore installations are contained in the following Sections of this Guid
18、e. 2 ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 Section 2: Classification Symbols and Notations CHAPTER 1 Scope and Conditions of Classification SECTION 2 Classification Symbols and Notations 1 Class Notations Units with a dropped object prevention program that
19、complies with this Guide and have been surveyed and commissioned to the satisfaction of the Surveyors in full compliance with this Guide and where approved by the Committee may be classed and distinguished in the Record by the appropriate notation for the intended service as follows. 1.1 DOPP Notati
20、on Units with a dropped object prevention program approved in accordance with the requirements and criteria established in Chapter 2 and Chapter 4 of this Guide will be assigned a notation of DOPP. 1.3 DOPP+ Notation Units that comply with DOPP and possess equipment designs that meet the requirement
21、s for primary securing, secondary retention, and specific equipment securing, and which are approved, surveyed, and commissioned to the satisfaction of the Surveyors in full compliance with this Guide, will be assigned a notation of DOPP+. ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND
22、 INSTALLATIONS .2017 3 Section 3: Rules for Classification CHAPTER 1 Scope and Conditions of Classification SECTION 3 Rules for Classification 1 General This Guide is applicable to the optional classification of dropped object prevention programs and associated equipment used to control and prevent
23、dropped objects from height, and supports dropped object prevention activities on mobile offshore drilling units, offshore installations, tendering vessels, mobile offshore units and other offshore units and installations that are classed with ABS. This Guide is intended for use in conjunction with
24、the ABS Rules for Building and Classing Mobile Offshore Drilling Units (MODU Rules), the ABS Rules for Building and Classing Offshore Installations (Offshore Installations Rules), ABS Rules for Building and Classing Floating Production Installations (FPI Rules), and the ABS Guide for Drilling Tender
25、 Barges, ABS Guide for Building and Classing Mobile Offshore Units (MOU Guide), as well as other applicable ABS Rules and Guides. If requested by the manufacturers, Owner/Operator, or designers, ABS can provide approval of individual equipment or components associated with a dropped object preventio
26、n program in accordance with the requirements of this Guide where the installation unit may not be classed with ABS. 4 ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 Section 4: Plans and Data to be Submitted for Review CHAPTER 1 Scope and Conditions of Classificatio
27、n SECTION 4 Plans and Data to be Submitted for Review 1 Submission of Plans Typical documentation that is required to be submitted for review for the dropped object prevention program, equipment, and/or components for the ABS Classification process is provided in Chapter 2 and 3 of this Guide. i) De
28、tailed plans and documentation of the onboard dropped object prevention program in accordance with 2-1/5 is to be submitted. ii) The documentation and plan for design, installation, and maintenance of equipment in accordance with 3-1/3 is to be submitted. iii) Dropped object prevention program docum
29、entation, equipment and/or component-related drawings and related calculations are required to be submitted to ABS for review by the contracting party or the party assigned by the contracting party to substantiate that the dropped object prevention program and the design of the equipment and/or comp
30、onents are in compliance with this Guide, and applicable codes or standards, as listed in this Guide. Upon satisfactory completion of ABS review of the submitted documentation, plans, and data, ABS will issue an approval letter verifying the completion of the review in accordance with the provisions
31、 of this Guide. This letter, in conjunction with ABS approved documentation, will be used and referenced during surveys. Subsequently, the ABS Surveyor will issue appropriate survey reports. Upon satisfactory completion of all of the required engineering design review and survey processes, ABS may i
32、ssue the Classification Certificate to the operating unit, including the Class notation DOPP or DOPP+. ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 5 Section 5: Alternatives CHAPTER 1 Scope and Conditions of Classification SECTION 5 Alternatives 1 Novel Features D
33、ropped object prevention programs and related equipment which contain novel features of design or monitoring provisions to which the content of this Guide is not directly applicable may be classed, when approved by the Committee, on the basis that this Guide insofar as applicable has been complied w
34、ith and that special consideration has been given to the novel features, based on the best information available at that time. The ABS Guidance Notes on the Review and Approval of Novel Concepts provides a methodology for requesting approval of a novel design. 3 ABS Type Approval Program 3.1 Type Ap
35、proval Products that are used as components for the dropped object prevention program and can be consistently manufactured to the same design and specification may be Type Approved under the ABS Type Approval Program. The ABS Type Approval Program is a voluntary option for the demonstration of compl
36、iance of a system or product with the Rules, Guides, or other recognized standards. It may be applied at the request of the designer or manufacturer. Specific requirements and details regarding the ABS Type Approval Program can be found in 1-1-4/7.7 and Appendix 1-1-A3 of the ABS Rules for Condition
37、s of Classification (Part 1). 3.3 Unit-Certification Unit-Certification is a review of individual materials, components, products, and systems for compliance with ABS Rules, Guides, or other recognized standards. This allows these items to be placed on a vessel, marine structure, or system to become
38、 eligible for classification. Certification is a “one-time” review. The process is: i) A technical evaluation of drawings or prototype tests of a material, component, product, or system for compliance with the ABS Rules, Guides, or other recognized standards ii) A survey during manufacture for compl
39、iance with the ABS Rules, Guides or other recognized standards and results of the technical evaluation iii) Alternatively, a certificate of type approval will expedite the requirements of i) and ii) above iv) Products found in compliance are issued “Individual Unit Certification” 6 ABSGUIDE FOR DROP
40、PED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 Section 6: Acronyms, Abbreviations, Definitions, and References CHAPTER 1 Scope and Conditions of Classification SECTION 6 Acronyms, Abbreviations, Definitions, and References 1 List of Acronyms, Abbreviations, and Definitions Assemble.
41、 Fit together the separate component parts of a machine or other object. BOP. Blowout preventer. BRC. Bridge racking crane. Dropped Object Dynamic. Any object that falls from its previous position due to applied force. For example: collisions involving travelling equipment or loads, snagging on mach
42、inery or stacked items, motion, helicopter downdraft, or severe weather. Dropped Object Static. Any object that falls from its previous position under its own weight (gravity) without any applied force. For example: a failure caused by corrosion, vibration, or inadequate securing. DROP . The term us
43、ed to indicate Dropped Objects Prevention. DROPS . Dropped Object Prevention Scheme. The global, independent oil and gas industry initiative focus entirely on the prevention of dropped objects. External Specialist. A person or company approved by ABS in accordance with ABS procedures for approval of
44、 External Specialist. The results of their inspections are used by Surveyors in making decisions affecting classification or statutory certification. Fastening. A device that closes or secures an object. Fixing. Screws, bolts, or other items used to fix or assemble equipment. HAZID: Hazard identific
45、ation study is a process to find, list, and characterize hazards. This is the first step of a risk assessment. Hierarchy of Controls. The dropped object control hierarchy from most effective to least effective is elimination, substitution, engineering controls, administrative controls, and personal
46、protective equipment. JSA. Job safety analysis. Mitigating Controls. Methods, actions or policies that reduce the rate and/or consequences of an incident if preventive controls fail or are not effective. Non-Through Bolted Connection. Connection type where screw/bolt is screwed into hole drilled and
47、 tapped directly in the material. OEM. Original Equipment Manufacturer. PHM. Pipe handling machine. PLS. Position location system. PPE. Personal protective equipment. Preventive Controls. Preventing dropped object incidents by reducing the likelihood that an incident will occur by drop resistant des
48、ign, reliable securing, management of change, training, etc. ABSGUIDE FOR DROPPED OBJECT PREVENTION ON OFFSHORE UNITS AND INSTALLATIONS .2017 7 Chapter 1 Scope and Conditions of Classification Section 6 Acronyms, Abbreviations, Definitions, and References 1-6 Primary Securing Methods. The fixing met
49、hods by which an item is fixed so as to prevent it from dropping or falling by using primary securing devices, such as nuts, bolts, screws, claps, brackets, turnbuckles, welding, etc. PRS. Pipe racking system (rig). Risk Zones. Area on the offshore asset identified as having the potential for a dropped object incident. Retain. To maintain in place; hold fixed. Secondary Retention. The method for securing a part from unintended loosening resulting in loss of clamping force, pre-tension, backing out, displacement, or loss of any part. Securing. Fixed or fastened so as not to give way, bec
