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Rigging, Signals, Power Line Safety

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Rigging, Signals, Power Line Safety & Assembly / Disassembly in Construction Safety Standard WAC 296-155 Chuck Lemon Crane Safety Manager * Housekeeping moved ... – PowerPoint PPT presentation

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Title: Rigging, Signals, Power Line Safety


1
Rigging, Signals, Power Line Safety Assembly /
Disassembly in Construction Safety Standard WAC
296-155
Chuck Lemon Crane Safety Manager
2
Topics to be Covered
  • Crane Requirements for Const. Activities
  • Rigging Signal Person
  • Part L Changes
  • Power Line Requirements
  • Assembly / Disassembly

3
296-155-Part L
  • Phase 1- Effective January 1, 2010 (Crane Safety
    Rule)
  • Crane Certification
  • Operator Certification
  • Crane Types
  • Includes Mobile, Articulating, Tower cranes when
    used in the construction industry

4
296-155-Part L
  • Cranes Included (performing construction
    activities)
  • Mobile Cranes Crawler Cranes
  • Lattice Boom Hydraulic Telescoping Boom
  • Articulating Rough Terrain Cranes
  • Tower Cranes Self Erecting Tower Cranes
  • Derricks Digger Derricks
  • Exempt (crane certification and operator
    certification)
  • Cranes lt2000 capacity Backhoes
  • Automobile Wreckers Pump Hoists
  • Forklifts Dedicated Drilling Rig
  • Permanently installed overhead/bridge cranes

5
Washington State Crane Rule
  • Phase 2- Effective February 1, 2012
  • WAC 296-155, Safety Standards for Construction
    Workers, Part L
  • As effective as OSHA
  • Incorporated Latest ASME Requirements for Slings
    and Rigging Hardware
  • 270 pages

6
296-155 Part L
  • Table of Contents (Readers Digest Version)
  • Crane certification
  • Crane proof load testing-requirements
  • Crane certifier qualifications and accreditation
  • Crane Operator qualifications and certification
  • Signals and Signal person qualifications
  • Rigging and Rigger qualifications
  • Crane inspection and operational requirement
  • Duties of assigned personnel
  • Assembly/disassembly
  • Mobile, Tower, Articulating Overhead cranes , and
    Derricks
  • Wire Rope Inspections
  • Power line safety
  • Training
  • Safety devices and Operational aids
  • Personnel lifting requirements
  • Rigging and rigging hardware

7
Signal Persons Qualifications 296-155-53302
8
Signal Person (Required as of Feb 1, 2012)
  • This applies to construction activities which
    involve cranes, derricks, and powered industrial
    trucks which have been configured to hoist and
    lower by means of a winch or hook
  • A Qualified Signal Person is required when
  • Point of operation is not in full view of
    operator
  • View of direction of travel is obstructed
  • Site specific safety concerns which the operator
    or person handling the load determines it
    necessary
  • working near energized power lines and a
    dedicated spotter is used, this spotter must also
    be a qualified signal person

9
Signal Person Qualifications
  • Qualification Requirements
  • Know and understand the type(s) of signals which
    will be used
  • Competent in the application of the type of
    signals used
  • Have a basic understanding of equipment operation
    and limitations, crane dynamics, and boom
    deflection

10
Signal Person Qualifications As of February 1st,
2012
  • Qualification Requirements
  • Verbal or written test
  • AND practical test
  • Documentation from qualified evaluator must be on
    site
  • A Third Party Qualified Evaluator
  • An Employer Qualified Evaluator
  • Employer qualification is not portable

11
Qualified Rigger (296-155-53306)
12
What did the Rule say Before?
WAC 296-155-329 Qualified person Rigging.
Qualified person A person who, by possession
of a recognized degree or certificate of
professional standing, or who, by extensive
knowledge, training, and experience, has
successfully demonstrated the ability to solve or
resolve problems relating to the subject matter.
Also has authorization or authority by the nature
of their position to take prompt corrective
measures to eliminate them. The person shall be
knowledgeable in the requirements of this part.
13
Riggers (contd)
  • Qualification Requirements
  • Know and understand the requirements of
    applicable ASME standards (such as B30.9,Slings
    and B30.26, Rigging Hardware)
  • Know and understand the type of sling and hitches
    used including removal criteria for rigging gear
  • Be competent in the application of the type of
    hitches used

14
Riggers (contd)
  • Qualification Requirements
  • Basic understanding of the applicable slings,
    rigging hardware, winch, below-the-hook lifting
    devices and their limitations
  • Know and understand rigging related conditions,
    such as load weight estimation, center of
    gravity, effect of angles on rigging components
    and basic hand signals, as applicable.

15
Riggers (contd)
  • Qualification Documents
  • (July 31, 2012) Changed to
  • (February 1, 2013)
  • Written and Practical test
  • Documentation from qualified evaluator must be on
    site
  • A Third Party Qualified Evaluator
  • An Employer Qualified Evaluator
  • Employer's qualification is not portable

16
Qualified Rigger
  • When required
  • During hoisting activities while Assembling or
    Disassembling a crane or derrick
  • Whenever workers are
  • Hooking, unhooking, guiding the load or
  • in the initial connection of a load to a
    component or structure and are within the fall
    zone
  • This applies to all construction material
    handling activities, including cranes, derricks,
    powered industrial trucks, excavators, backhoes ,
    loaders, come-a-longs, chain falls, etc. The
    Department is looking at developing a separate
    set of requirements for Material Handling not
    involving Cranes.

17
Qualified Riggers and Signal Persons
  • The employer must make the documentation for
    whichever option is used available at the site
    while the rigger or signal person is employed by
    the employer.
  • The documentation must specify each type of
    rigging and signaling type
  • The documentation must specify each type of
    signaling
  • Sample Documentation

Qualified Rigger________________________________ Date _______________________ Qualified Rigger________________________________ Date _______________________
Rigging Type Chain Slings Wire Rope Synthetic Metal Mesh Rigging Hardware Shackles Turnbuckles Eye Bolts Wire Rope Clips
Third Party Evaluator __________________________ Employer Evaluator ___________________________ Evaluator Signature___________________________ Evaluator Company____________________________ Third Party Evaluator __________________________ Employer Evaluator ___________________________ Evaluator Signature___________________________ Evaluator Company____________________________
Qualified Signal Person__________________________ Date _______________________ Qualified Signal Person__________________________ Date _______________________
Signaling Type Voice Hand Radio Other_______________ Crane Type Mobile Tower Articulating Overhead
Third Party Evaluator _________________________ Employer Evaluator ___________________________ Evaluator Signature ___________________________ Evaluator Company____________________________ Third Party Evaluator _________________________ Employer Evaluator ___________________________ Evaluator Signature ___________________________ Evaluator Company____________________________
18
Power Line Safety 296-155-53408
19
Power Line Safety Requirements
  • If the crane, load, or rigging could get closer
    than 20/50 feet to an energized power line there
    are new safety requirements which apply. 
  • If the crane, load, or rigging can not get closer
    than 20/50 feet to the power line even if the
    crane is operated at its maximum working radius,
    the 20/50-foot requirement is satisfied.
  • Minimum approach distance
  • Up to 350kv 20 Feet
  • Over 350KV 50 Feet

20
Power Line Safety Requirements (Part L before
2/1/2012)
  • For energized power lines rated at or below 50kV
    the minimum approach distance shall be 10 ft.
  • For lines rated over 50 kV., minimum clearance
    between the lines and any part of the crane or
    load shall be 10 feet plus 0.4 inch for each 1
    kV. over 50 kV., or twice the length of the line
    insulator, but never less than 10 feet

21
Power Line Safety Requirements (Table 4)
  • Minimum Clearance Distances Table
  • Voltage Minimum clearance
    distance
  • up to 50 (kV) 10 (feet)
  • over 50 to 200 15
  • over 200 to 345 20
  • over 345 to 500 25
  • over 500 to 750 35
  • over 750 to 1,000 45

That was easy
22
Power Line Safety Requirements
  • Identify the Work Zone
  • Define the work zone by demarcating boundaries
    such as flags, or a device such as a range limit
    device or a range control warning device and
    prohibiting the operator from operating past
    those boundaries.

Note Flags
23
If the crane or load COULD get closer than 20/50
feet of Power Lines in the Work Zone
  • Crane operations near power lines, use one of 3
    Options
  • Option 1 - Deenergize Ground Power lines
  • Option 2 - Maintain 20/50 foot clearance
  • Option 3 - Obtain power line voltage from Utility
    Owner/Operator and ensure the crane or rigging
    does not get closer than the distances listed in
    Table 4

24
Power Line Safety Requirements
  • Options 2 and 3 require the following
  • Conduct a planning meeting with crane operator,
    all workers who will be in the area of crane
    load
  • This meeting must address the location of the
    power lines and the steps that will be
    implemented to prevent encroachment-electrocution
  • If tag lines are used they must be nonconductive
  • Erect elevated warning line, barricade, or line
    of signs, in view of the operator, equipped with
    flags or similar high-visibility markings
  • (opt 2 20/50 feet opt 3 Table 4)

25
Nonconductive
  • Nonconductive means that, because of the nature
    and condition of the materials used, and the
    conditions of use (including environmental
    conditions and condition of the material), the
    object in question has the property of not
    becoming energized (that is, it has high
    dielectric properties offering a high resistance
    to the passage of current under the conditions of
    use).

26
Power Line Safety Requirements
  • Options 2 and 3 also requires at least one of the
    following
  • Proximity Alarm
  • Dedicated Spotter that is also a Qualified
    Signal Person
  • Range Control Warning Device
  • Range Movement Limiter
  • Insulating Link
  • Currently, Proximity alarms and Insulating
    Links do not meet the National Recognized Testing
    Laboratory (NRTL) requirements.

27
Power Line Safety Requirements
  • If Dedicated Spotter is used, 5 rqmt. must be
    met
  • Spotter must be in continuous contact with
    operator
  • Be equipped with a visual aid to assist in
    identifying minimum clearance distance
  • Examples of visual aid include Clearly visible
    line painted on ground, clearly visible line of
    stations, line-of-site landmarks (such as a fence
    post and building corner)

28
Power Line Safety Requirements
  • If Dedicated Spotter is used cont.
  • Be positioned to effectively gauge the clearance
    distance
  • Where necessary, use equipment that enables
    spotter to communicate directly with operator,
    such as radio or telephone
  • Give timely information to the operator so that
    the required clearance distance can be maintained

29
Could you get within 20 feet of a power line?
YES
NO
Option 1 Deenergize Ground
No Further Action
Encroachment Prevention Measures
Option 2 20-foot Clearance
  • Planning Meeting
  • If Tag Lines are Used, They Must be
    Nonconductive
  • Elevated Warning Lines, Barricades, or Line of
    Signs
  • PLUS (Choose One)
  • Proximity Alarm, Spotter, Range Control Warning
    Device, Range Limiter, or Insulating Link

Option 3 Ask Utility for Voltage and Use Table
4 (with minimum clearance distance)
30
Operation INSIDE Table 4
  • ALL of the following MUST be met (41 items)
  • Notify Crane Safety Program at LI
  • (360) 902-4943 or LNICranes_at_Lni.wa.gov
  • Employer determines it is infeasible to perform
    job without breaching minimum approach distances
  • After consultation with utility owner/operator it
    is determined infeasible to deenergize ground
    power lines or relocate the power lines

31
Operation INSIDE Table 4 cont.
  • Power Line owner/operator determines the minimum
    clearance distance
  • Hold a planning meeting with utility
    owner/operator to determine the procedures to be
    followed in order to prevent electrical contact
    procedures must include
  • Deactivation of device that automatically
    reenergizes circuit in event of power line
    contact
  • Employ a dedicated spotter Spotter must

32
Operation INSIDE Table 4 cont.
  • Be equipped with a visual aid to assist in
    identifying the minimum clearance distance
  • Be positioned to effectively gauge clearance
    distance
  • Use equipment that enables the dedicated spotter
    to communicate directly with the operator
  • Give timely information to the operator
  • Dedicated spotter must be a Qualified Signal
    Person (see WAC 296-155-53302)

33
Operation INSIDE Table 4 cont.
  • Have an elevated warning line in view of the
    operator with high-visibility flags
  • Use an insulating link installed at a point
    between the end of the load line and the load
  • All employees who may come into contact with the
    equipment must wear gloves rated for the voltage
    involved
  • Use nonconductive rigging

34
Operation INSIDE Table 4 cont.
  • Use range limiter (if equipped) that is set to
    prevent breaching minimum clearance distance
  • If tag line is used it must be nonconductive
  • Barricade a perimeter at least 10 feet away from
    crane to prevent unauthorized entry
  • Employees must be prohibited from touching the
    load line above the insulating link

35
Operation INSIDE Table 4 cont.
  • Only essential employees are permitted in the
    area of the crane and load
  • The crane must be properly grounded
  • Insulating line hose or cover-up must be
    installed by the utility owner/operator
  • Procedures are documented and available on-site
  • The following personnel must meet with the
    utility owner/operator to discuss procedures

36
Operation INSIDE Table 4 cont.
  • Crane user, crane operator, ALL workers that will
    be in the area of the crane or load
  • Employer must ensure procedures are implemented
  • Employer must identify one person who will direct
    the implementation of the procedures
  • If a problem occurs implementing the procedures
    or it is found that the procedures are
    inadequate, new procedures must be developed or
    deenergize power lines

37
Operation INSIDE Table 4 cont.
  • All safety devices, operational aids must meet
    manufacturers procedures for use
  • The employer must train each employee and crew
    member assigned to work with the crane as
    follows
  • Procedures to be followed to prevent electrical
    contact
  • Information regarding the danger of electrocution
    from the operator simultaneously touching the
    crane and ground

38
Operation INSIDE Table 4 cont.
  • The importance of the operator remaining inside
    the cab except where imminent danger of fire,
    explosion, or other emergency that necessitates
    leaving the cab
  • The safest means of evacuating from the crane
    that may be energized
  • The danger of potentially energized zone around
    the crane (step potential)
  • The need for crew in the area to avoid
    approaching or touching the crane or load

39
Operation INSIDE Table 4 cont.
  • Safe clearance distance from power lines
  • Power lines are presumed energized unless utility
    owner/operator confirms them insulated
  • The limitations of an insulating link, proximity
    alarm, and range control device
  • The procedures to be followed to properly ground
    crane and limitations of grounding

40
Power Line Safety
  • Crane assembly/disassembly below energized power
    lines is prohibited.
  • Crane assembly/disassembly inside Table 4 is
    prohibited.

41
Non-Exempt Crane Crane Exempt 52900-53300 Excavator W /rigging Excavator W/O rigging Forklift W/O attachment Forklift W hook winch
Crane Certification Yes N/A EXEMPT EXEMPT Follow 296-863 Follow 296-863
Operator Certification Yes N/A EXEMPT EXEMPT Follow 296-863 Follow 296-863
Qualified Rigger 53306 When Required 296-155-55600(1) When Required 296-155-55600(1) When Required 296-155-55600(1) When Required 296-155-55600(1) When Required 296-155-55600(1) When Required 296-155-55600(1)
Qualified Signal Person 53302 When Required 296-155-53406(1) When Required 296-155-53406(1) EXEMPT EXEMPT EXEMPT When Required 296-155-53406(1)
Power Line 296-155 Part L Applicable Applicable EXEMPT EXEMPT EXEMPT Applicable
Power Line 296-155 Part I N/A N/A Applicable Applicable Applicable N/A
42
Power Lines 296-155-Part L or Part I
Operator Certification Equipment Certification
Qualified Rigger (Part L 53306) ?
Qualified Signal Person (Part L 53302) ?
43
Power Lines 296-155-Part L or Part I
Qualified Rigger (Part L 53306) ?
Operator Certification Equipment Certification
Qualified Signal Person (Part L 53302) ?
863
44
Responsibilities Duties of Assigned Personnel
  • Crane Owner has custodial control of the crane
    by virtue of lease or ownership
  • Crane User arranges the cranes presence on a
    worksite and controls its use there
  • Site Supervisor exercises supervisory control
    over the work site on which a crane is being used
    and over the work that is being performed on that
    site
  • Lift Director directly oversees the work being
    performed by a crane and the associated rigging
    crew
  • Crane Operator directly controls the cranes
    function


45
Assembly/Disassembly
46
Assembly/Disassembly
  • Crane assembly or disassembly must be controlled
    by an Assembly/Disassembly (A/D) Director
  • Must comply with
  • Manufacturer procedures,
    or
  • Employer procedures, which
    must be developed by a qualified
    person.

47
Assembly/Disassembly
  • Preassembly inspection.
  • Prior to assembling crane components or
    attachments the A/D director must visually
    inspect the components and attachments to ensure
  • Sound physical condition
  • Meet manufacturers recommendations
  • Functional per manufacturer's recommendations
  • Documentation of this inspection must remain at
    the job site while the crane/derrick is in use.

48
Assembly/Disassembly Procedures
  • Assembly/Disassembly procedures must address
  • Ways to prevent unintended dangerous movement or
    collapse of any part of the equipment
  • Adequate support and stability of all parts of
    the equipment and
  • Positioning employees involved in the
    assembly/disassembly operation that will minimize
    their exposure to unintended movement or collapse
    of the equipment.
  • The A/D director must follow any manufacturer
    prohibitions that apply to the assembly/disassembl
    y operation.

49
Assembly/Disassembly Director
  • Crane assembly or disassembly must be controlled
    by an Assembly/Disassembly Director.
  • An assembly/disassembly director is an individual
    who meets the criteria for both a competent
    person and a qualified person, or by a competent
    person who is assisted by one or more qualified
    persons.
  • The A/D director must know understand the
    applicable assembly/disassembly procedures. 

50
Assembly/Disassembly Director
  • The A/D director must ensure that the crew
    members understand all of the following
  • Their tasks
  • The hazards associated with their tasks
  • The hazardous positions locations that they
    need to avoid

51
Assembly/Disassembly Director
  • Assembly/Disassembly Director must cover 12 Key
    Hazards with their crew
  • Adequate site and ground conditions
  • Sufficient blocking for load and stability
  • Suitable boom and jib pick points
  • Identify center of gravity
  • Stability for pin removal
  • Consider wind speed and weather

52
Assembly/Disassembly Director
  • 12 Key Hazards (continued)
  • The suitability of blocking material
  • Verification of the loads for assist cranes
  • Snagging of cables or components
  • Struck by counterweights
  • Boom hoist brake failure
  • Loss of backwards stability

53
Personnel Lifting Platforms 296-155-547
  • 20 Pages
  • Personnel Lift Design
  • Personnel Lifting Hoisting Equipment
  • Crane Derrick Requirements
  • Inspections (Platform and Cranes)
  • Lift proof Load Tests
  • Trial Lift
  • Crane Operation Requirements
  • Employers Responsibilities
  • Personnel Lift Supervisors Responsibilities
  • Lifting Personnel

54
Rigging 296-155-556 - 562
  • 70 Pages
  • Slings
  • Chain
  • Wire Rope
  • Metal Mesh
  • Synthetic Rope Slings, Web Slings, Round Slings
  • Includes
  • Design
  • Maintenance Repair
  • Testing
  • Use

55
Rigging 296-155-556 - 562
  • Rigging Hardware
  • Shackles
  • Turnbuckles
  • Eyebolts Eye Nuts
  • Swivel Hoist Rings
  • Wire Rope Clips
  • Wedge Sockets
  • Includes
  • Design
  • Maintenance Repair
  • Testing
  • Operation

56
Rigging 296-155-556 - 562
  • Lifting Device by Types
  • Structural Mechanical Lifters
  • Vacuum Lifters
  • Lifting Magnets
  • Grapples
  • Includes
  • Design
  • Maintenance Repair
  • Testing
  • Operation

57
Questions?
Chuck Lemon 360-902-4669 Lemc235_at_Lni.wa.gov
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