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

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DOE-STD-I090-96 (Rev-I)BalancedNote:Cl = CenterlineCG = Center of GravityCLI CGSome unbalanceCL ICGSevere unbalanceFigure 11-6. Balancing loads.Verticalsling angleTension2.8741bload (1,000 Ib)load on each sling 2.874tbLoad (1,000 Ib)load on each sling 500 Ibload (1,000 Ib)Load on each sling 1,000 Ibload (1,000 Ib)load on each sling 7071bSlin?Eangelo~dangleactor90° 1.00085° 1.004BO° 1.01575° 1.03570° 1.06465° 1.10460° 1.15555° 1.22150° 1.30545° 1.41440° 1.55535° 1.74230° 2.00025° 2.36420° 2.92415° 3.86110° 5.7475° 11.490Figure 11-7. Relationship of load angle and lifting efficiency.11-9Chapter 11Wire Rope and Slings
DOE-STD-1090-96 (Rev-1)11.3.1.3 Design FactorIn general, a design factor of5:1 is maintainedthroughout this section. However, certain slingfittings, such as hooks (which will straightenwithout breaking) or links (which will deformbeyond usefulness before breaking) cannot beassigned a definite numerical design factor. Insuch cases, suitable safe loads are listed, based onwide experience and sound engineering practice.11.3.1.4 Sling CareProper care and usage are essential for maximumservice and safety. Wire-rope slings shall beprotected from sharp bends and cutting edges bymeans ofcomer saddles, burlap padding, or woodblocking. Overloading shall be avoided, as shallsudden dynamic loading that can build up amomentary overload sufficient to break: the sling.11.3.1.5 Sling StoragePersonnel using slings shall ensure that they arestored properly as follows:a. Slings should be stored in racks (preferablyvertical) and in designated locations when not inuse. Do not store slings in a location where theywill be subjected to mechanical damage, corrosiveaction, moisture, extreme heat, or kinking. Slingsmay require segregated storage as determined on acase-by-case basis.b. Before storage and periodically duringstorage, wipe slings clean to remove as much dirtand abrasive grit as possible and relubricate wirerope and chain slings to extend their useful life.Chains should not be lubricated when in use.c. Do not store metal-mesh slings in areaswhere the temperature exceeds 550 degrees F (288degrees C) or 200 degrees F (93 degrees C) ifelastomer covered.d. Do not store synthetic-web slings where thetemperature exceeds 200 degrees F (93 degreesC).11.3.2 Wire-Rope Slingsa. Ingeneral, wire-rope slings are made up of 6x 19 or 6 x 37 classification wire rope.Rotation-resistant wire rope shall not be used forwire-rope slings. Different kinds ofslings havebeen developed for specific purposes. These aredivided into different groups or types as follows:1. Endless-loop slings (grommetconstruction) and single-part slings withsingle-rope legs, double-rope legs, ormultiple-part rope legs.2. TWO-leg bridle slings with single-ropelegs, equalizing double-rope legs, or multiple-partrope legs.3. Three-leg bridle slings.4. Four-leg bridle slings.5. Special slings and combinations.b. The total load that can be safely lifted withslings depends on the rating ofthe slings and themanner in which they are attached to the load.Consult (load) Tables 11-4 through 11-9 andFigure 11-10.c. Braided slings are made by braiding ordinarywire ropes together, thus making them moreflexible than wire-rope slings. The size of abraided sling is determined by the diameter of onewire rope and the number ofropes in the crosssection ofthe sling.d. The design factor for wire-rope slings shallbe a minimum of5:1 based upon breakingstrength.e. When a wire rope sling is used in a chokerhitch, the normal angle formed in the rope body asit passes through the choking eye is 120 degreesor greater [do not confuse the choke angle with theangle ofinclination ofthe load (see Figure11-10)]. Rated load in load capacity Tables 11-4through 11-9 are for angles of 120 degrees orgreater. For smaller angles, reduce the rated loadto the percentages given in Figure 11-10.Chapter 11Wire Rope and Slings 11·10
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INCH-POUNDDOE STANDARDDOE-STD-1 090
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DISCLAIMERPortions of this document
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DOE-STD-I090-96 (Rev-I)7.5.6 Attach
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DOE-STD-I090-96 (Rev-I)9.2.6.3 Hydr
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DOE-STD-1090-96 (Rev-l)11.2.3.1 6 x
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DOE-STD-1090-96 (Rev-l)13.4.5 Disco
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DOE-STD-I090-96 (Rev-I)15.4.2 Mobil
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DOE-STD-I090-96 (Rev-I)History and
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DOE-STD-I090-96 (Rev-I)Acknowledgme
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DOE-STD-I090-96 (Rev-I)Introduction
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DOE-STD-I090-96 (Rev-I)CHAPTER 1TER
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DOE-STD-I090-96 (Rev-I)CLOSING LINE
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DOE-STD-I090-96 (Rev-I)END CONTROL:
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LIFT, PREENGINEERED PRODUCTION:Repe
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QUALIFIED ENGINEER/QUALIFIEDENGINEE
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DOE-STD-I090-96 (Rev-I)INTENTIONALL
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DOE-STD-I090-96 (Rev-I)2.2 CRITICAL
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DOE-STD-1090-96 (Rev-1)INTENTIONALL
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DOE-STD-I090-96 (Rev-I)3.2 OPERATIO
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DOE-STD-I090-96 (Rev-I)2. Perform a
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DOE-STD-I090-96 (Rev-I)3.4.4 Approv
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DOE-STD-I090-96 (Rev-I)3.6 TRAINING
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DOE-STD-I090-96 (Rev-I)that create
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4.3 OVERHEAD CRANESDOE-STD-I090-96
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DOE-STD-I090-96 (Rev-I)lNTENTIONAIL
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DOE-STD-I090-96 (Rev-I)5.2 HOSTILE
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DOE-STD-1090-96 (Rev-l)EXHIBIT IHOS
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6.2 QUALIFICATIONDOE-STD-I090-96 (R
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6.2.5Operators of ForkliftTrucksa.
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DOE-STD-I090-96 (Rev-I)6.3 TRAINING
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DOE-STD-1090-96 (Rev-l)24. Records
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6.4 REQUALIFICATIONDOE-STD-I090-96
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DOE-STD-I090-96 (Rev-!)Gantry Crane
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DOE-STD-I090-96 (Rev-I)Crane bridge
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DOE-STD-I090-96 (Rev-I)7.2 INSPECTI
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DOE-STD-I090-96 (Rev-I)h. Chain-dri
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DOE-STD-I090-96 (Rev-I)trouble pers
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DOE-STD-I090-96 (Rev-I)7.4 MAINTENA
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DOE-STD-I090-96 (Rev-I)HOIST. With
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DOE-STD-I090-96 (Rev-I)g. Do not lo
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DOE-STD-1090-96 (Rev-l). IN1ENTIONA
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DOE-STD-1090-96 (Rev-l)EXHIBIT I (c
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DOE-STD-I090-96 (Rev-I)EXHIBIT I (c
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DOE-STD-I090-96 (Rev-I)8.3 TESTING
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DOE-STD-I090-96 (Rev-I)Figure 8-3.
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DOE-STD-I090-96 (Rev-I)8.1.1Operato
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DOE-STD-I090-96 (Rev-I)operating co
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DOE-STD-I090-96 (Rev-I)2. A number
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DOE-STD-!090-96 (Rev-!)iv.Inspect f
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DOE-STD-I090-96 (Rev-I)8.4 MAINTENA
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DOE-STD-I090-96 (Rev-I)d. Do not op
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DOE-STD-I090-96 (Rev-I)Exhibit I is
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DOE-STD-I090-96 (Rev-I)EXHIBIT I (c
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DOE-STD-I090-96 (Rev-I)9.5.29.5.39.
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DOE-STD-I090-96 (Rev-I)Table 9-1. S
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DOE-STD-1090-96 (Rev-1)r-1r.ilE3...
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DOE-STD-I090-96 (Rev-I)d. Evidence
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12.5 TURNBUCKLESDOE-STD-I090-96 (Re
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12.6 LINKS AND RINGSDOE-STD-I090-96
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DOE-STD-I090-96 (Rev-I)12.7 METAL-P
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DOE-STD-I090-96 (Rev-I)Exhibit I is
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DOE-STD-1090-96 (Rev-l)13.2 INSPECT
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DOE-STD-I090-96 (Rev-I)13.3 TESTING
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DOE-STD-1090-96 (Rev-l)13.4 NONDEST
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DOE-STD-1090-96 (Rev-1)14.4.4.3 Per
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DOE-STD-I090-96 (Rev-I)14.2 STRUCTU
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DOE-STD-I090-96 (Rev-I)14.2.7 Maint
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DOE-STD-I090-96 (Rev-!)Four-pad pow
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DOE-STD-I090-96 (Rev-I)14.3.5 Testi
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DOE-STD-I090-96 (Rev-I)14.4 MAGNETS
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DOE-STD-I090-96 (Rev-I)1. External
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DOE-STD-I090-96 (Rev-I)instructed b
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DOE-STD-I090-96 (Rev-I)6. Charging
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DOE-STD-!090-96 (Rev-!)EXHIBIT IPag
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DOE·STD·I090-96 (Rev-I)15.2 DEFIN
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General note for Figures 15-5 throu
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DOE-STD-I090-96 (Rev-I)LIFT, ORDINA
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DOE-STD-1090~96 (Rev-l)Consideratio
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DOE-STD-I090-96 (Rev-I)15.4.2.4 Fre
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DOE-STD-I090-96 (Rev-I)4. Corroded
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DOE-STD-I090-96 (Rev-I)attention to
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DOE-STD-I090-96 (Rev-I)b. Test load
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DOE-STD-!090-96 (Rev-!)regardless Q
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DOE-STD-1090-96 (Rev-1)EMERGENCY ST
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DOE-STD-I090-96 (Rev-I)so by an app
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DOE-STD-I090-96 (Rev-I)Figure 15-13
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DOE-STD-I090-96 (Rev-I)include the
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DOE-STD-1090-96 (Rev-l)the platform
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DOE-STD-I090-96 (Rev-I)h. Report an
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DOE-STD-!090-96 (Rev-!)fRAISE THE T
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DOE-STD-I090-96 (Rev-I)h. Provide 4
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DOE-STD-1090-96 (Rev-l)ASME B56.7,
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