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DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

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<strong>DOE</strong>-<strong>STD</strong>-I090-<strong>96</strong> (Rev-!)7. Locate sling eyes so that:i. Adequate clearance is maintainedbetween the attached slings <strong>and</strong>other parts or surfaces ofthecomponent or equipment.Figure 11-14. Double-saddle clips(drop-forged steel, galvanized).22. As a minimum, mark wire-rope slingswith the rated capacity <strong>and</strong> inspection due date.This information maybe stenciled or stamped on ametal tag affixed to the sling. (Stenciling orstamping on the swages ofa sling eye is notrecommended.)23. Slings made ofrope with 6 x 19 <strong>and</strong>6 x 37 construction <strong>and</strong> cable-laid slings shallhave a minimum clear length ofrope 10 times therope diameter between splices, sleeves, or endfittings.24. Braided slings shall have a minimumclear length ofrope 40 times the component(individual) rope diameter between the loops orend fittings.25. Grommets <strong>and</strong> endless slings shallhave a minimum circumferential length of<strong>96</strong> times the body diameter ofthe grommet orendless sling.b. Critical Lifts1. All provisions ofparagraph 11.3.2.3.a,"OrdinaryLifts," also shall apply to critical lifts.2. Wire-rope sling eyes with thimblesshall be made with a thimble having a ratio ofthimble diameter (D) to rope diameter (d) of3 ormore (DId greater than or equal 3).3. Do not use wedge sockets or wire-ropeclips on slings used for critical lifts.4. Ensure that working loads ofwire-ropeslings do not exceed their rated capacities.5. Do not splice slings together.6. Use thimble eyes for slings to bejoined end-to-endii.iii.iv.There is no interference with thefunctioning ofhoisting, rigging,or h<strong>and</strong>ling equipment.Maximum accessibility to the eyeis maintained.Attached slings can convergeover the center ofgravity ofthelift.v. Proper stability canbemaintained during lifting <strong>and</strong>positioning ofthe item at theinstallation site.vi.The planeofthe slinging eye iscoincident with the plane ofthesling underloaded conditionswithin ±5 degrees.vii. Sling angles are not less than 45degrees with the horizontal.8. In addition to marking requirementslisted for ordinary lifts, other items may need to bemarked as determined on a case-by-case basis,such as the reach, type, weight ofthe slingassembly, <strong>and</strong> rated capacity.11.3.3 Alloy Steel-Chain Slingsa. This section applies to slings made fromgrade 80 alloy chain manufactured <strong>and</strong> tested inaccordance with National Association ofChainManufacturers welded steel chainspecifications-1990. Ifchain other than this isused, it shall be used in accordance with herecommendations ofthe chain manufacturer.b. Alloy Steel-chain slings differ fromwire-rope slings in that components using wire arereplaced by link chain. Other sling componentsare similar. Chain slings are more rugged <strong>and</strong>flexible, but less shock resistant than wire-rope orbraided slings. The size is measured by the linkstock.Chapter 11Wire Rope <strong>and</strong> Slings 11-22

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