Module Thirteen - Intermediate Rigging - NCCER Substation Slides

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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Intermediate Rigging
Module Thirteen – 38201-11

2. Copyright © by NCCER,
Published by Pearson Education, Inc.
Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 1 Objectives
1. Describe the basic requirements to lift personnel.
2. Explain how a sling stress is determined.
3. Describe the basic elements of a lift plan.
4. Explain the purpose of a load chart.
5. Calculate and explain how the center of gravity is determined.
6. Given a particular load, select the appropriate sling(s) for a lift.
7. Describe how jacks, hoists, skids, and rollers are used to move a
load laterally.
Upon completion of this module, you will be able to do the
following:

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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 2 Performance Tasks
1. Given a particular load, select the appropriate sling(s) for a lift.
2. Calculate and explain how the center of gravity is determined.
Under the supervision of the instructor, you should be able to do
the following:

4. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 3 Figure 1 – Crane requirements for personnel platforms

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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 4 Figure 2 – Crane requirements for suspended personnel platforms

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Module 38201-11
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Slide 5 Figure 3 – Suspended personnel platform

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Module 38201-11
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Slide 6 Figure 4 – Bridle sling using a master link

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Slide 7 Figure 5 – Bridle sling using a shackle

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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 8 Figure 6 – Sling measurement

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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 9 Figure 7 – Sling angle factors

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Slide 10 Figure 8 – Example of a sling capacity chart

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Slide 11 Figure 9 – Bridle hitch arrangement

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Slide 12 Figure 10 – Asymmetrical bridle sling stress arrangement and formula

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Slide 13 Figure 11 – Choker hitch arrangement

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Slide 14 Figure 12 – Choker hitch derating factors

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Slide 15 Figure 13 – Industrial hydraulic crane with rotating boom

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Slide 16 Figure 14 – Rough-terrain crane

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Slide 17 Figure 15 – All-terrain crane

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Slide 18 Figure 16 – Truck-mounted telescopic crane

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Slide 19 Figure 17 – Truck-mounted and crawler-mounted lattice boom cranes

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Slide 20 Figure 18 – Crawler- and wheel-mounted crane components

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Slide 21 Figure 19 – Swing cab, lattice boom truck crane

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Slide 22 Figure 20 – A heavy-lift crane with counterweights

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Power Line Worker Level Two: Substation – Intermediate Rigging
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Slide 23 Figure 21 – Load chart

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Slide 24 Figure 22 – Typical deductions for a hydraulic crane

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Slide 25 Figure 23 – Typical deductions for a lattice boom crane

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Slide 26 Figure 24 – Boom length, boom angle, load operating radius,
and boom point elevation

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Slide 27 Figure 25A – Structural strength and stability charts

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Slide 28 Figure 25B – Structural strength and stability charts

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Slide 29 Figure 26 – Unlevel and level cranes

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Power Line Worker Level Two: Substation – Intermediate Rigging
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Slide 30 Figure 27 – Boom length, boom angle, load operating radius,
and boom point elevation measurements

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Power Line Worker Level Two: Substation – Intermediate Rigging
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Slide 31 Figure 28 – Hoist reeving chart

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Power Line Worker Level Two: Substation – Intermediate Rigging
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Slide 32 Figure 29 – Heavy-lift crane with ten-part reeving

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Slide 33 Figure 30 – Typical deductions for a lattice boom crane

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Power Line Worker Level Two: Substation – Intermediate Rigging
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Slide 34 Figure 31 – Jib off angle set

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Slide 35 Figure 32 – Teeter-totter demonstrating leverage

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Slide 36 Figure 33 – Bent lever

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Slide 37 Figure 34 – Crane-shaped lever

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Slide 38 Figure 35 – Typical center of gravity and leverage distances for
each position of a truck-mounted crane

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Slide 39 Figure 36 – Relative tipping force

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Slide 40 Figure 37 – Hydraulic jacks

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Slide 41 Figure 38 – Hydraulic cylinders

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Slide 42 Figure 39 – Hydraulic pumps

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Slide 43 Figure 40 – Jacking systems

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Slide 44 Figure 41 – Grip hoist

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Slide 45 Figure 42 – Use of rollers

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Slide 46
Supplemental Art

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Slide 47 Course Map

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Module 38201-11
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Slide 48 Appendix

50. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
National Center
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Education and
Research
Slide 49 Appendix

51. Copyright © by NCCER,
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Power Line Worker Level Two: Substation – Intermediate Rigging
Module 38201-11
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Slide 50 Appendix