Presentation on theme: "Rigging, Signals, Power Line Safety & Assembly / Disassembly in Construction Safety Standard WAC 296-155 This presentation is intended to “summarize” the."— Presentation transcript:
1 Rigging, Signals, Power Line Safety & Assembly / Disassembly in Construction Safety Standard WACThis presentation is intended to “summarize” the New Crane Safety Rules. The new rules incorporate ~270 pages and quite a few rules are unchanged. Rigging was “pulled” over from Part F. Power Line and Personnel Lifting rules are much stronger.I think you may conclude in the end that many circumstances might be better addressed by a Crane Safety CSHO. Please refer!Chuck LemonCrane Safety Manager
2 Topics to be Covered Crane Requirements for Const. Activities Rigging & Signal PersonPart L ChangesPower Line RequirementsAssembly / Disassembly
3 Operator Certification Crane Types Part LPhase 1- Effective January 1, 2010 (Crane Safety Rule)Crane CertificationOperator CertificationCrane TypesIncludes: Mobile, Articulating, Tower cranes when used in the construction industryConstruction IndustryAnnual CertificationAccredited Crane CertifierValid operator’s certificateOperating hours and Crane related experienceLBC, LBT, TLL, TSS, ABC, ABL, ABW, Tower (Hammerhead, Luffer, Self-Erecting) or Overhead (Cab Operated or Pendant/Remote), Derricks.
4 296-155-Part L Cranes Included (performing construction activities) Mobile Cranes Crawler CranesLattice Boom Hydraulic Telescoping BoomArticulating Rough Terrain CranesTower Cranes Self Erecting Tower CranesDerricks Digger DerricksExempt (crane certification and operator certification)Cranes <2000 # capacity BackhoesAutomobile Wreckers Pump HoistsForklifts Dedicated Drilling RigPermanently installed overhead/bridge cranes
5 Washington State Crane Rule Phase 2- Effective February 1, 2012WAC , Safety Standards for Construction Workers, Part LAs effective as OSHAIncorporated Latest ASME Requirements for Slings and Rigging Hardware270 pages
6 296-155 Part L Table of Contents (Reader’s Digest Version) Crane certificationCrane proof load testing-requirementsCrane certifier qualifications and accreditationCrane Operator qualifications and certificationSignals and Signal person qualificationsRigging and Rigger qualificationsCrane inspection and operational requirementDuties of assigned personnelAssembly/disassemblyMobile, Tower, Articulating Overhead cranes , and DerricksWire Rope InspectionsPower line safetyTrainingSafety devices and Operational aidsPersonnel lifting requirementsRigging and rigging hardwareHousekeeping – moved rigging from Part F to Part L.
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 hookA Qualified Signal Person is required when:Point of operation is not in full view of operatorView of direction of travel is obstructedSite specific safety concerns which the operator or person handling the load determines it necessaryworking near energized power lines and a dedicated spotter is used, this spotter must also be a qualified signal personA Qualified Signal Person is a signal person who meets the requirements of WAC
9 Signal Person Qualifications Qualification Requirements:Know and understand the type(s) of signals which will be usedCompetent in the application of the type of signals usedHave 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 testAND practical testDocumentation from qualified evaluator must be on siteA Third Party Qualified EvaluatorAn Employer Qualified EvaluatorEmployer qualification is not portable
12 What did the Rule say Before? WAC 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 (cont’d) 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 gearBe competent in the application of the type of hitches used
14 Riggers (cont’d) Qualification Requirements: Basic understanding of the applicable slings, rigging hardware, winch, below-the-hook lifting devices and their limitationsKnow 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 (cont’d) Qualification Documents: (July 31, 2012) Changed to: (February 1, 2013)Written and Practical testDocumentation from qualified evaluator must be on siteA Third Party Qualified EvaluatorAn Employer Qualified EvaluatorEmployer's qualification is not portable
16 Qualified Rigger When required: During hoisting activities while Assembling or Disassembling a crane or derrickWhenever workers are :Hooking, unhooking, guiding the load orin the initial connection of a load to a component or structure and are within the fall zoneThis 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 typeThe documentation must specify each type of signalingSample DocumentationQualified Rigger________________________________Date _______________________Rigging Type:Chain SlingsWire RopeSyntheticMetal MeshRigging Hardware:ShacklesTurnbucklesEye BoltsWire Rope ClipsThird Party Evaluator __________________________Employer Evaluator ___________________________Evaluator Signature___________________________Evaluator Company____________________________Qualified Signal Person__________________________Date _______________________Signaling Type:VoiceHandRadioOther_______________Crane Type:MobileTowerArticulatingOverheadThird Party Evaluator _________________________Employer Evaluator ___________________________Evaluator Signature ___________________________Evaluator Company____________________________
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 FeetOver 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 TableVoltage Minimum clearance distanceup to 50 (kV) 10 (feet)over 50 toover 200 toover 345 toover 500 toover 750 to 1,That was easy
22 Power Line Safety Requirements Identify the Work ZoneDefine 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 OptionsOption 1 - Deenergize & Ground Power linesOption 2 - Maintain 20/50 foot clearanceOption 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 & loadThis meeting must address the location of the power lines and the steps that will be implemented to prevent encroachment-electrocutionIf tag lines are used they must be nonconductiveErect 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 NonconductiveNonconductive 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 DeviceRange Movement LimiterInsulating 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 operatorBe equipped with a visual aid to assist in identifying minimum clearance distanceExamples 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 distanceWhere necessary, use equipment that enables spotter to communicate directly with operator, such as radio or telephoneGive 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? YESNOOption #1 Deenergize & GroundNo Further ActionEncroachment Prevention MeasuresOption #220-foot ClearancePlanning MeetingIf Tag Lines are Used, They Must be NonconductiveElevated Warning Lines, Barricades, or Line of SignsPLUS (Choose One):Proximity Alarm*, Spotter, Range Control Warning Device, Range Limiter, or Insulating Link*Option #3Ask Utility for Voltage andUse Table 4(with minimum clearance distance)When assembly / disassembly could get within 20 foot of a power line either;Shut off and groundMaintain the 20’ clearance including the meeting, non-conductive taglines insulators etc plusA proximity alarm, dedicated spotter, warning device or insulating linkOr verify with utility exact voltage and use a table for safe distances
30 Operation INSIDE Table 4 ALL of the following MUST be met: (41 items)Notify Crane Safety Program at L&I(360) orEmployer determines it is infeasible to perform job without breaching minimum approach distancesAfter 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 distanceHold 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 contactEmploy a dedicated spotter – Spotter must:
32 Operation INSIDE Table 4 cont. Be equipped with a visual aid to assist in identifying the minimum clearance distanceBe positioned to effectively gauge clearance distanceUse equipment that enables the dedicated spotter to communicate directly with the operatorGive timely information to the operatorDedicated spotter must be a Qualified Signal Person (see WAC )
33 Operation INSIDE Table 4 cont. Have an elevated warning line in view of the operator with high-visibility flagsUse an insulating link* installed at a point between the end of the load line and the loadAll employees who may come into contact with the equipment must wear gloves rated for the voltage involvedUse nonconductive rigging
34 Operation INSIDE Table 4 cont. Use range limiter (if equipped) that is set to prevent breaching minimum clearance distanceIf tag line is used it must be nonconductiveBarricade a perimeter at least 10 feet away from crane to prevent unauthorized entryEmployees 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 loadThe crane must be properly groundedInsulating line hose or cover-up must be installed by the utility owner/operatorProcedures are documented and available on-siteThe 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 loadEmployer must ensure procedures are implementedEmployer must identify one person who will direct the implementation of the proceduresIf 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 manufacturer’s procedures for useThe employer must train each employee and crew member assigned to work with the crane as follows:Procedures to be followed to prevent electrical contactInformation 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 cabThe safest means of evacuating from the crane that may be energizedThe 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 linesPower lines are presumed energized unless utility owner/operator confirms them insulatedThe limitations of an insulating link, proximity alarm, and range control deviceThe procedures to be followed to properly ground crane and limitations of grounding
40 Power Line SafetyCrane assembly/disassembly below energized power lines is prohibited.Crane assembly/disassembly inside Table 4 is prohibited.
41 Forklift W/O attachment Non-Exempt CraneCrane ExemptExcavatorW /riggingExcavator W/O riggingForklift W/O attachmentForklift W hook winchCrane CertificationYesN/AEXEMPTFollowOperator Certification**Qualified Rigger **53306When Required(1)**Qualified Signal Person **53302(1)Power Line Part LApplicablePower Line Part IRECAP SlideMUST be CONSTRUCTION!
42 Qualified Rigger (Part L 53306) Qualified Signal Person (Part L 53302) Power LinesPart L or Part IOperator CertificationEquipment CertificationOperator CertificationQualified Rigger (Part L 53306)?Qualified Signal Person (Part L 53302)?
43 Qualified Rigger (Part L 53306) Qualified Signal Person (Part L 53302) Power LinesPart L or Part IOperator CertificationEquipment CertificationQualified Rigger (Part L 53306)?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 ownershipCrane User: arranges the crane’s presence on a worksite and controls its use thereSite 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 siteLift Director: directly oversees the work being performed by a crane and the associated rigging crewCrane Operator: directly controls the crane’s function155 defines roles/responsibilities of key “players” now.An owner is not necessarily responsible for exposure to power line on site (example) BUT MAY BE IF they fill another role.Often the FIRST stop in determining responsibility or DUTY isCrane Owner:Has custodial control of a crane by virtue of lease or ownership.Crane User:Arranges the crane's presence on a worksite and controls its use there.Site Supervisor:Exercises supervisory control over the worksite 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 crane's functions.
46 Assembly/Disassembly Crane assembly or disassembly must be controlled by an Assembly/Disassembly (A/D) DirectorMust comply with:Manufacturer procedures, orEmployer procedures, which must be developed by a qualified person.A/D supervisor can be one person however if it is then he/she must meet the requirements of BOTH qualified & competent person. It can also be a competent person working along side with a qualified person.The A/D must not only understand the procedures but a clear requirement is there that he / she must have reviewed them prior to starting assembly.The A/D is also responsible for ensuring that workers are briefed on their tasks and anticipated hazards prior to work starting.This is the first of two sections that require a “Qualified Rigger” Prior to this the only place a “qualified rigger was req’d was in steel erection. The ANSI A10.42 standard can provide CSHO guidance as to what all is entailed in being a “Qualified rigger”If outriggers are used there is a requirement that be either fully deployed or set up according to a load chart, no more operator opinion.Employer ProceduresDeveloped by a qualified personDesigned to:• Prevent unintended dangerous movement to prevent collapse• Provide adequate support and stability during A/D process• Minimize employee exposure to unintended movement or collapse
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 conditionMeet manufacturer’s recommendationsFunctional per manufacturer's recommendationsDocumentation of this inspection must remain at the job site while the crane/derrick is in use.A/D supervisor can be one person however if it is then he/she must meet the requirements of BOTH qualified & competent person. It can also be a competent person working along side with a qualified person.The A/D must not only understand the procedures but a clear requirement is there that he / she must have reviewed them prior to starting assembly.The A/D is also responsible for ensuring that workers are briefed on their tasks and anticipated hazards prior to work starting.This is the first of two sections that require a “Qualified Rigger” Prior to this the only place a “qualified rigger was req’d was in steel erection. The ANSI A10.42 standard can provide CSHO guidance as to what all is entailed in being a “Qualified rigger”If outriggers are used there is a requirement that be either fully deployed or set up according to a load chart, no more operator opinion.
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; andPositioning 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/disassembly operation.A/D supervisor can be one person however if it is then he/she must meet the requirements of BOTH qualified & competent person. It can also be a competent person working along side with a qualified person.The A/D must not only understand the procedures but a clear requirement is there that he / she must have reviewed them prior to starting assembly.The A/D is also responsible for ensuring that workers are briefed on their tasks and anticipated hazards prior to work starting.This is the first of two sections that require a “Qualified Rigger” Prior to this the only place a “qualified rigger was req’d was in steel erection. The ANSI A10.42 standard can provide CSHO guidance as to what all is entailed in being a “Qualified rigger”If outriggers are used there is a requirement that be either fully deployed or set up according to a load chart, no more operator opinion.
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. The Assembly/Disassembly supervisor is responsible for addressing these plus:
50 Assembly/Disassembly Director The A/D director must ensure that the crew members understand all of the following:Their tasksThe hazards associated with their tasksThe hazardous positions & locations that they need to avoidThe Assembly/Disassembly supervisor is responsible for addressing these plus:
51 Assembly/Disassembly Director Assembly/Disassembly Director must cover 12 Key Hazards with their crew:Adequate site and ground conditionsSufficient blocking for load and stabilitySuitable boom and jib pick pointsIdentify center of gravityStability for pin removalConsider wind speed and weatherThe Assembly/Disassembly supervisor is responsible for addressing these plus:
52 Assembly/Disassembly Director 12 Key Hazards (continued):The suitability of blocking materialVerification of the loads for assist cranesSnagging of cables or componentsStruck by counterweightsBoom hoist brake failureLoss of backwards stability