1、Authorization for this document is on file in the GEO Standards Department.All information herein is the confidential property of Xxxx and Chemicals, Inc., unless another source is shown. This information is subject to return on demand and must not be disclosed or reproduced without prior written co
2、nsent. Xxxx and Chemicals, Inc., 2007GLOBAL ENGINEERING SPECIFICATIONPersonnel Lifting System (Manbasket) 4WCE-*Revision 123 August 2007Page 1 of 10RESPONSIBLE GROUP: Construction Engineering *Formerly 01.05.22Denotes Revision1. PURPOSE1.1 This global engineering specification defines the minimum st
3、andard and responsibilities for proper use of suspended personnel platform (manbasket) used in conjunction with mobile cranes at all Xxxx sites worldwide.2. SCOPE2.1 This specification applies to the use and inspection, set-up, and use of suspended personnel platforms. All operations, maintenance, a
4、nd construction personnel must comply with the provisions of this specification. Xxxx site or construction management (or designee) must ensure that lifting company personnel comply with the provisions of this procedure.2.2 This specification shall supplement all national, provincial, or municipal r
5、egulatory requirements and recognized industry standards in force within the country where this specification is being applied. Examples of some standards are indicated in paragraphs 4.2 through 4.5. If there are any conflicts between this specification and the applicable codes and standards, the Xx
6、xx representative shall be notified immediately.2.3 When using mobile cranes to support suspended personnel platforms, this specification shall be used in conjunction with 4WCE-, Crane and Lifting Procedures.3. SUMMARY3.1 The use of a suspended personnel platform shall be undertaken only in circumst
7、ances when it is not possible to accomplish the task by less hazardous means. A suspended personnel platform must never be used for convenience purposes. Suspended personnel platforms shall meet the national, provincial, and municipal design and operational requirements. 4. RELATED DOCUMENTS4.1 Xxxx
8、 Engineering Documents 01.05.21 Fall Protection4WCE- Crane and Lifting Procedures 4WCE- Lifting and Slinging 4WCE- Construction Safety To be published at a date subsequent to this issue date Provided for background information only (not referenced in the text)4.2 America Society of Mechanical Engine
9、ersB30.5 Mobile and Locomotive CranesB30.9 SlingsB30.20 Below-the-Hook Lifting DevicesB30.23 Personnel Lifting SystemsB30.26 Rigging HardwareBTH-1 Design of Below-the-Hook Lifting Devices4.3 British Standards Institution (BSI)BS 7121-3:2000 Code of Practice for Mobile CranesBS2830:1994 Specification
10、 for suspended access equipment (suspended chairs, traditional steeplejack chairs, work cages, cradles and platforms) for use in the building, construction, steeplejack and cleaning industries.4.4 Canadian Standards Association (CSA)CSA Z150 Safety Code on Mobile CranesCSA Z271 Safety Code for Suspe
11、nded Elevating Platforms4.5 United States Department of Labor, Occupational Safety and Health Administration (OSHA)29 CFR, Part 1910 Occupational Health and Safety StandardsSubpart N Material Handling and StorageStandard number 1910.180, Crawler, locomotive and truck cranesStandard number 1910.181,
12、Derricks29 CFR, Part 1926 Safety and Health Regulations for ConstructionSubpart M Fall ProtectionSubpart N Cranes, Derricks, Hoists, Elevators and ConveyorsStandard number 1926.550, Cranes and Derricks5. DEFINITIONS5.1 Xxxx representative is any qualified Xxxx site or plant manager or designated emp
13、loyee who has responsibility for organizing and managing lifting operations in a specific location.5.2 Anti-two-block device: When activated, disengages all hoisting equipment functions whose movement can cause two-blocking.5.3 Two-blocking is a condition in which the lower load block or hook assemb
14、ly comes in contact with the upper load block or boom point sheave assembly.5.4 Approval, unless specified otherwise, shall mean approval by Xxxx in writing or by e-mail.5.5 Authorization: The approval or permission from the appropriate entity for another individual to act in a defined role for a sp
15、ecific period.5.6 Boom: Hinged structural member of the hoisting equipment used for supporting the hoisting tackle and load.5.7 Certification: A statement attesting authoritatively that a specified standard or condition has been met.5.8 Competent: Capable of identifying existing and predictable haza
16、rds in the operation, conditions or surroundings that are hazardous, dangerous, or can initiate such a condition or situation, has the ability to take the necessary steps to abate the hazards identified, and has the knowledge to differentiate between minor and major hazards.Page 3 of 105.9 Crane ope
17、rator is the qualified person who is authorized by the lift supervisor to operate the controls of the crane and meets all the requirements of federal, provincial, and municipal regulations. Only personnel qualified by training, experience, medical evaluation and formal written and practical testing
18、shall operate cranes or derricks. (Note: Where permitted by local regulations and in the United States, mandatory substance abuse testing is required.) The lift company shall provide certification documentation and experience resumes for all operators. Operators shall be easily identifiable by the u
19、se of company overalls, hard-hat, or suit-badge identification.5.9.1 In the United States all crane operators shall be trained in accordance with the National Commission for the Certification of Crane Operators (NCCCO). For further information on the NCCCO, use the link to their website www.nccco.or
20、g5.10 Design factor: The ratio of the ultimate strength of a material to its working (unit) stress, unless defined otherwise in the text of ASME B30.235.11 Designated person: Selected or assigned by the employer or employers representative as being competent to perform specific duties.5.12 Inspectio
21、n, frequent: Required to be completed by a designated person on a frequent basis, e.g., daily pre-use check. It will cover the platform, suspension system, attachment points, and any platform motion controls. Any conditions found that may constitute a hazard shall be corrected prior to use.5.13 Insp
22、ection, periodic: Required to be completed by a qualified person on pre-determined schedule, e.g., every quarter, year, and no less than once every twelve months, or as required by the platform manufacturer or national, provincial, and municipal regulatory requirements. It shall be done in accordanc
23、e with the instructions provided by the manufacturer.5.14 Lifting company is any Xxxx or contractor competent person/organization that has control of both the lifting operation and the crane operation.5.15 Lift supervisor is the delegated person who fulfills the responsibility for progressing the wo
24、rk activities that involve the use of the crane(s) 1) In the UK this individual fulfills the role of the appointed person, 2) This person shall be responsible for and meet the requirements of “Personnel Lift Supervisor” as defined in ASME B30.23). In some instances the lift supervisor might be the p
25、erson who acts in one or all of the functions as the signalperson/banksman and rigger/slinger. The lift supervisor shall be qualified and demonstrate a basic understanding of crane operation and limitations, understanding of hand signals, and understanding of verbal signals. Designated lift supervis
26、or competency shall be documented and available for review during the duration of the contract.5.16 Live boom: A boom whose lowering is controlled by a brake without the aid of other lowering retarding devices (free-fall capable).5.17 Live load line: A load line whose lowering is controlled by a bra
27、ke without the aid of other lowering retarding devices (free-fall capable).5.18 Load, rated: Capacity or rating established by the manufacturer or a qualified person for a stipulated hoisting equipment configuration.5.19 Load, working: External load applied to the hoisting equipment including the pe
28、rsonnel lifting platform, its contents, and the load-attaching equipment such as lower load block, shackles, and slings.5.20 Manbasket: See Platform, personnel suspended.5.21 Platform, personnel suspended: A platform attached to hoisting equipment using wire rope, chain, or jointed attachment and th
29、at has no installed motion controls for the platform itself. 5.22 Personnel lift authorizer: Lifting company management shall designate qualified individuals to perform the duties of the “Personnel Lift Authorizer.“ This person shall be responsible for activities defined in ASME B30.23.5.23 Platform
30、 rating: Maximum capacity of a personnel lifting platform, established by the platform manufacturer, in terms of weight and number of occupants allowable.5.24 Proof test: Consists of evenly distributing a load in the platform equal to 125% of the platform rating. The platform is then hoisted and hel
31、d in a suspended position for at least five minutes. The platform is then lowered and inspected by a qualified person. If any damage is revealed, it shall be corrected and another proof test completed. If any structural modification or repair is performed, the load must be increased to 150% of the p
32、latform rating. (The preceding values are from ASME B30.23. If national, provincial, or municipal requirements are more stringent they shall be followed.)5.25 Proof test, boom-attached platforms: Consists of evenly distributing a load in the platform equal to 125% of the platform rating. The platfor
33、m is hoisted and held in a suspended position, then lowered at a speed no less than 100 ft/min (30.5 m/min). Once this lowering speed is reached, the hoisting equipment brakes are applied and the platform suspended for at least five minutes. The platform is then lowered and inspected by a qualified
34、person. If any damage is revealed, it shall be corrected and another proof test completed. If any structural modification or repair is performed, the load must be increased to 150% of the platform rating. (The preceding values are from ASME B30.23. If national, provincial or municipal requirements a
35、re more stringent they shall be followed.)5.26 Qualified: Has the training, experience, or instruction to be deemed “competent.“ Has demonstrated the ability to perform all assigned duties and do so in a safe manner. When required, has met the appropriate license, certification, or authorization req
36、uirements. Has received formal training by an accredited body in accordance with the national, provincial, or municipal regulations applicable in the location where work is being performed.5.27 Rigger/Slinger shall be the appointed person(s) who is/are qualified and authorized by the lift supervisor
37、 to ensure that lifting gear or rigging (e.g., slings, chokers, shackles, lifting beams) is suitable, is properly attached to the load, and that all loads are correctly rigged or slinged. The riggers shall be qualified and demonstrate an understanding of safe rigging practices. Rigger competency sha
38、ll be documented and available for review during the duration of the contract.5.28 Safety type shackles used in the suspension system are of bolt type with a cotter pin.5.29 Signalperson/Banksman is the qualified person appointed by the lift supervisor who is authorized to provide instructions to a
39、crane operator during a lifting operation. If one signalperson is insufficient to monitor the lift operation, additional signalperson(s) or radio communication shall be used. The signalperson shall demonstrate a basic understanding of crane operation and limitations, understanding of hand signals, a
40、nd understanding of verbal signals. Designated signalperson competency shall be documented and available for review during the duration of the contract.5.30 Suspension system: The wire rope or chain slings and other components, including fastening devices, used to connect the hoisting equipment to t
41、he personnel platform.6. PROCEDURE6.1 Use of Suspended Personnel Platform (Manbasket) 6.1.1 The use of a suspended personnel platform shall only be undertaken in circumstances when it is not possible to accomplish the task by less hazardous means. Use of suspended personnel platform is prohibited, e
42、xcept when the use of conventional methods of temporary platforms, e.g., scaffold, ladder, mobile elevated work platform (manlift) or temporary platform, is more hazardous, or is not possible to install because of structural design incompatibility or worksite conditions.Page 5 of 106.1.2 All suspend
43、ed personnel platforms manufactured on-site, purchased, leased, or borrowed must meet applicable national, provincial, and municipal design regulatory requirements. Appendix A, Suspended Personnel Platform Construction, shows typical suspended personnel platform design features.6.2 Evaluation of Sus
44、pended Personnel Platform in Lieu of Conventional Methods to Access Work Areas6.2.1 Evaluation of conventional methods of accessing work areas is mandatory prior to acceptance to use suspended personnel platform. The personnel lift shall not be authorized when less hazardous means are feasible. A ri
45、sk assessment shall be documented as to why each alternative conventional method is more hazardous than a suspended personnel platform or impractical to install because of other documented factors. Scaffold Ladder Elevated work platform Mobile elevated work platform (MEWP) (e.g., manlift, scissor li
46、ft)If the evaluation concludes that a suspended personnel platform is the least hazardous means of accessing the work area for the site-specific circumstances, Appendix B, Request to Use Suspended Personnel Platform (Manbasket) shall be completed and signed by the lift supervisor and the Xxxx repres
47、entative. Use must be authorized in writing by the Xxxx site manager or their management level delegate. 6.3 The risk assessment shall also address means of rescuing occupants from the suspended Personnel Platform or work area (if there are no other means to access work area than the use of the pers
48、onnel platform) if the lift equipment becomes non-functional when lifting the suspended personnel platform.6.4 Suspension system: For suspended personnel platforms, the suspension system shall be designed such that it minimizes the potential for its removal and use for other purposes. The suspension
49、 system shall be sized by the platform manufacturer, and its installed sling angle established, so as not to cause damage to the platform. Suspension systems shall comply with the following:6.4.1 If used, wire rope sling suspension system with mechanical spliced Flemish eyes shall be designed with thimbles in all eyes. Wire rope clips, wedge sockets, or knots shall not be used.6.4.2 If used, wire rope sling suspension systems with poured socket end connections shall be designed in accordance with the manufacturers or qualified persons application instructions.6.4.3 If used
