= power lines must be maintained (10 minimum). Two laborers were working on a motorized two-point suspension scaffold, 70 feet above ground level, without safety belts, lanyards, or lifelines. [, Makeshift devices, such as boxes and barrels, may not be used on top of scaffold platforms to increase the height of the working level. Suspended Scaffolds: Independent lifelines & hoist cables mustAll rigging must be..No repairs or splices.. 2003-2023 Chegg Inc. All rights reserved. 3. (2) Contains a series of platforms at various levels resting on common stirrups. The outriggers were not tied off or otherwise secured. Side stringers of lumber no smaller than 2 x 6 inches set on edge. [, On suspended scaffolds with horizontal lifelines that may become vertical lifelines, the devices used to connect to the horizontal lifeline must be capable of locking in both directions. The lanyard had been returned to the storage bin even though it had probably been damaged earlier during cutting and welding operations. The correct procedures for dealing with those hazards. Animation of what happens when a scaffold becomes stuck while traveling. The employees were not tied off independently, nor was the scaffold equipped with an independent attachment system. Such retraining is required in at least the following situations [. [, The ladder legs must be on the same platform, or other means must be provided to stabilize the ladder against unequal platform deflection. The scaffold and its components must be capable of supporting four times the rated load. [, Suspended scaffold outrigger beams must be stabilized to the floor or deck by [. Counterweights used to balance adjustable suspension scaffolds must be capable of resisting [. However, proper clearance and maintenance reduce this risk. Suddenly, the victim's end of the scaffold dropped to a vertical position, and the victim fell from the scaffold to the ground 60 feet below. [, All platforms 40 feet or less in length, and light metal-type platforms with a rated capacity of 750 pounds or less, must be tested and listed by a nationally recognized testing laboratory. How much heat per cycle is exhausted to the kitchen? A 53-year-old painting foreman and a 28-year-old painter were killed when their scaffold collapsed. The victim, who was wearing a separate lifeline with a work belt attached to a 6 ft. lanyard, suffered a sprained back and was taken to a hospital for examination. So a 10 foot span (120 inches) cannot deflect more than: 2 inches Each scaffold and it's components must be capable of supporting, without failure, it's own weight and at least ___ times the maximum intended load applied to it. [, The suspension wire rope must be covered with insulating material at least 4 feet (1.2 m) above the hoist. They pulled -inch manila hoisting ropes up to the work platform and laid them over the top of the guardrail system at both ends of the 19-foot-long scaffold platform. (Figure 17) [. (per employee) . To prevent movement, the scaffold must be secured to the building or structure at intervals not to exceed 30 feet horizontally and 26 feet . The number one scaffold hazard is worker falls. He was caught by his belt and lifeline, but after hanging for a few minutes, the lifeline broke and the employee fell to his death. =Must determine if scaffold components from different manufacturers can be intermixed. This is especially critical with suspended scaffolds, because they often are operated at extreme elevations. Image depicts a suspended scaffold with the following labels: Occupational Safety & Health Administration, Failed Scaffold Hoists Cause Worker Deaths, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, 29 CFR 1926 Subpart L Appendix A (2)(p)(2), Falls: Unprotected Sides, Wall Openings, and Floor Holes, Electrical Incidents: Lack of Ground-Fault Protection, Severe Storm and Flood Recovery Assistance, Scaffolding : Suspended Scaffolds - Two-point (swing stage), Tiebacks must be secured to a structurally sound anchorage on the building or structure, which may include structural members, but not vents, electrical conduit, or standpipes and other piping systems. Training shall include [. =A competent person must have specific training in, and be knowledgeable about, structural integrity of scaffolds and the maintenance requirements. Specific requirements for one type each of supported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. [, Ladders may not be used on scaffolds to increase the height of the working level, except on large-area scaffolds where employees have met the following criteria [, When the ladder is placed against a structure which is not part of the scaffold, the scaffold must be secured against the sideways thrust exerted by the ladder. [29 CFR 1926.451(d)(1)] Or wind screens (when windscreens are used the scaffold must be secured against the anticipated wind forces). Fabricated Frame Scaffold Fall Protection. The victim was on the left side of the platform and was wearing the same equipment, but he apparently did not have the lanyard hooked to his lifeline. Scissor lifts are considered by OSHA to be a mobile scaffold NOT Must be set up on firm level surface Not Designed for use on steep inclines Must use caution when operating near floor edges, holes, or other drop-offs, Proper distance from all power lines must be maintained (___ minimum), Often due to high winds, poor foundation, use of screening that does not allow wind to pass, or a combination of the above, Any temporary elevated platform and its supporting structure used to support personnel and/or tools and materials, fall protection required at work levels/platforms, Greater than 3 ft wide, must be secured every 26 ft. (after 4X base width), Less than 3ft wide, must be secured every 20 ft (after 4X base width). NOTE: Except where indicated, these requirements also apply to multi-level, single-point adjustable, multi-point adjustable, interior hung, needle-beam, catenary, and float (ship) scaffolds. [, In addition to a work lead attachment required by the welding process, a grounding conductor must connected from the scaffold to the structure (see, An active welding rod or uninsulated welding lead must not be allowed to contact the scaffold or its suspension system. tools, scrap material, chemicals, snow, ice, etc.) Indicate the One worker managed to hold on, the other two fell with the scaffold, resulting in one worker dying and the other being hospitalized for extensive injuries. Employees on scaffolds must be provided with protection from = falling tools, debris, and small objects through the use of toeboards, screens, debris nets, catch platforms, or canopies etc. Inspection of the scaffold hoist revealed a defect in a centrifugal safety brake. When the victim's weight dropped back on the lanyard, it snapped, allowing him to fall to his death on a concrete floor. Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. Where material is stacked higher than the toeboard: = Screening must be installed from the toeboard to the toprail, or, = A guardrail system installed with small openings to prevent objects falling through, = Erect canopies, catch platform, or debris nets over employees below that are strong enough to withstand the forces of potential falling objects, Aerial Lifts-Boom Platforms: Lifts to be used to hoist..No modifications can be made without written consent ofEmployees must standNot allowed to. (, Clips must be installed according to the manufacturer's recommendations. An "eye" formed by three wire rope clips, which connected the wire rope to the C-hook, failed to hold, and one end of the scaffold came down. [, When lanyards are connected to horizontal lifelines or structural members, the scaffold must have additional independent support lines and automatic locking devices capable of stopping the fall of the scaffold in case one or both of the suspension ropes fail. [, Counterweights must not be made of flowable materials such as sand, gravel, and similar materials that can be easily dislocated. [, All ladder-type platforms must be constructed in accordance with the. Figure 13. On the basis of what you know about cerebellar function, how can you determine that the cerebellum is involved? Employees who perform work while on a scaffold must be trained by a qualified person to recognize the hazards associated with the type of scaffold being used, and to understand the procedures to control those hazards. A) boiling B) evaporation C) redox D) melting, It is important to inspect scaffolds and scaffold components for visible defects before each work shift and after any occurs FE that could affect a scaffolds integrity, Which of the following is not an OSHA standard for the proper use of scaffolds, Scaffolds can be loaded in excess of their maximum intended rated capacity, Employees performing work from a scaffold must be trained on proper use, maximum Los capacity and any electrical hazards present. Scissors lifts are considered by OSHA to be.Personal fall arrest is not required by OSHA. [, Employees are not permitted to work on or from a scaffold during storms or high wind, unless a competent person has determined that it is safe, and those employees are protected by [. He was pronounced dead on arrival at a hospital at 11:55 a.m. At approximately 2:00 p.m., a painter and a helper were scraping, glazing, and painting windows from a 32-foot-high two-point suspension scaffold. Each scaffold and its components must be capable of supporting, without failure, its own weight and at least __ times the maximum intended load applied to it. 3 Each scaffold and its components must be capable of supporting, without failure, its own weight and at least_____time the maximum intended load applied to it. [29 CFR 1926.451(e)(1)]. Protecting these workers from scaffold-related incidents can prevent injuries and deaths attributed to falls from scaffolding each year. Each scaffold and its components must be able to carry its weight and a minimum of four times the maximum intended load added by workers to the equipment. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. A bar or other means securely fastened to each end of the platform to prevent it slipping off the hanger. Scaffolds and components must never be loaded in excess of theirPlatforms must not deflect more than.Fabricated frame scaffolds over.. Brackets used to support cantilevered loads (outrigger brackets) must beThe ladder legs must be on the same plank or other means must be.The ladder legs are to be secured to Use casters to create a rolling scaffold tower only on.Casters must be.When moving scaffold manual force must be applied.Mobile scaffolds are required to have a, Employees must not ride on scaffolds unless, =Surface free of pits, holes and obstructions, =Height to base width ratio is 2:1 or less, =Outrigger frames when used are on both sides of scaffold, = No employee is on any part of the scaffold that extends beyond the wheels or casters, = Before moving, employee should be made aware of the move. [, Installed with all bearing supports perpendicular to the beam center line. Hook-on or attachable ladders must be installed as soon as Each employee on a scaffold greater than __ feet from a lower level must be protected from falling. Response: No. His assistants were outside. (see Falls: Unprotected Sides, Wall Openings, and Floor Holes in the OSHA Construction eTool), The employer must designate a competent person, who would be responsible for determining the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. Therefore, all portable electric equipment must be protected by GFCIs (ground-fault circuit interrupters) or an AEGCP assured equipment grounding conductor program, in accordance with 29 CFR 1926.404(b)(1)(i) (see Electrical Incidents: Lack of Ground-Fault Protection in the OSHA Construction eTool). Non-mandatory examples of criteria that will enable an employer to comply with 29 CFR 1926.451(a) are contained in 29 CFR 1926 Subpart L Appendix A. [, Any part of a scaffold that has been damaged or weakened so that it no longer meets OSHA strength requirements must either be repaired, replaced, braced, or removed from service. The co-worker was left hanging on to the remaining scaffold rope. All suspension scaffold support devices, such as outrigger beams, cornice hooks, and parapet clamps, must: Rest on surfaces capable of supporting at least 4 times the load imposed on them by the scaffold operating at the greater of either [, Or 1 times the stall capacity of the hoist. Bolts or other direct connections to the floor or deck. The left side of the parapet wall collapsed, causing the left cornice hook to fall and the left end of the scaffold to fall to the ground. The employees stopped painting because it started to rain. Response: Under section 1926.451 (a) (1), each component of a scaffold system must be able to support its own weight (the weight of the component itself, in addition to the portion of the scaffold's weight that is transmitted to that component), and at least 4 times the maximum intended load transmitted to that component. As the employees went up in the scaffold, the right side fell to the ground from an elevation of 20 feet. The victim was not using personal fall protection equipment, although it was available and was being used by a second painter. Because the platform is the work area of a suspended scaffold, an inspection requires safety checks of both the platform structure and how the platform is used by the workers. The scaffold consisted of an aluminum ladder used as a platform, and secured to steel "stirrups" made of steel bar stock bent into a box shape and attached to each end of the ladder. [, Each hoist must be covered with insulated protective covers. Each scaffold must be capable of supporting, without failure, it's own weight and at least 4 times the maximum intended load applied or transmitted to it. Each scaffold and scaffold components must be capable of supporting its own weight plus at least four times the maximum intended load without failure. The company did not conduct a fall protection or competent person inspection, nor was a safety line or any fall protection used. [29 CFR 1926.451(g)(2)]. Tip: Because it may be difficult to determine if a power line is insulated, or what its exact voltage is, the 10 ft. rule should always be applied. Where inadequacies in an affected employee's work indicate that the employee has not retained the necessary proficiency. The nature of any electrical hazards, fall hazards, and falling object hazards in the work area. = Top rail to be at 38 inches 45 inches. The purifier struck the employee and knocked him from the scaffolding. [, When screens and mesh are used, they must extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. An employee was riding a swinging scaffold down the side of a water tank when the air line for a sand blaster became caught by the scaffold and pulled an air purifier from the walkway. [, Gears and brakes of power-operated hoists used on suspension scaffolds must be enclosed. An employee was restoring a building's exterior. [29 CFR 1926.451(g)(4)(ii)], Employees Fall Due to Inadequate Guardrails. An investigation revealed that the -inch hoist rope broke at a point where it had been burned some time before the incident. In such cases, the platforms must be as wide as feasible, and fall protection must be provided. The painter sent the helper to the sidewalk below to receive the tools and paint buckets. Neither painter was wearing an approved safety belt and lanyard attached to an independent lifeline. Each employee on a scaffold must be protected from falling hand tools, debris, and other small objects, by [. Three workers were on a two-point suspension scaffold rated at 500 lbs. Where changes at the worksite present a hazard for which an employee has not previously been trained. Wire cables from each stirrup ran to a common tie-off point. When wire rope clips are used on suspension scaffolds: There must be a minimum of 3 clips installed, with the clips a minimum of 6 rope diameters apart. The right side hoist had only been set up with enough cable to go from the upper roof to the intermediate roof, a total of 16 feet (the total cable length measured 18 feet 5 inches). [. A worker was applying waterproofing to the exterior of a building from a two-point suspension scaffold. This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. Millions of workers in the construction industry work on scaffolds. Hence, such incidents almost always involve two violations: One that causes the scaffold to fall, and the other when workers fail to use (or their employers fail to provide) appropriate safety harnesses, lanyards, lifelines, etc. [, Wire suspension ropes must not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and bolts. [, The inboard ends of outrigger beams must be stabilized by bolts or other direct connections to the floor or roof deck, or by counterweights. =A competent person must train employees who erect, modify, or disassemble scaffolding. When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against the corrosive substances, or shall be of a material that will not be damaged by the substances. Two-point suspension scaffolds must be tied or otherwise secured to prevent them from swaying, as determined to be necessary by a competent person. Each suspension rope, including connecting hardware, used on adjustable suspension scaffolds shall be capable of supporting, without failure, at least 6 times the maximum intended load applied or transmitted to that rope with the scaffold operating at either the rated load of the hoist, or 2 (minimum) times the stall load of the hoist, whichever Rigging, welding machines, materials and supplies, etc., were placed on the scaffold, and two 1-inch wire rope hoist lines were cut free. [, Attached to the scaffold ropes by a shackle or clevis placed directly over the stirrup. = Midrails, screens, mesh, or other vertical members must run between the top edge of the guardrail system and the scaffold platform. The scaffold attachment point failed, releasing the scaffold cables, and the scaffold fell to the ground. [, Scaffolds may be closer to overhead power lines than specified above if such proximity is necessary for the type of work being done, and if the power company or electrical system operator has been notified and has either [. Tip: Almost all incidents that involve scaffold failure would not lead to fatality or serious injury if proper personal fall-arrest systems were in use. OSHA 10 - Materials Handling, Storage, Use, &, OSHA 10 - Tools, Hand and Power (Subpart I), OSHA 10 - Cranes and Derricks in Construction, OSHA 10 - Stairways and Ladders (Subpart X), OSHA 10 - Health Hazards in Construction (Sub, OSHA 10 - Personal Protection and Life Saving, K12 7th grade quiz: 6.07 Unit Test: Answers a. Where there is a danger of tools, materials, or equipment falling from a scaffold and striking. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or more stringent requirements. Tip: When a suspended scaffold sits overnight, water condensation may form on the wire ropes, making them slip through the braking device and cause the scaffold to fall. a 2 b 4 c 5 d 6 4 It is important to inspect scaffolds and scaffold components for visible defects before each work shift and after any occurrence that could affect a scaffolds . (Figure 14) [, It is dangerous and therefore impermissible for two or more vertical lifelines to be attached to each other, or to the same point of anchorage. ________ scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames or similar rigid support. Each scaffold and its components must be capable of supporting, without failure, its own eitght and at least ___ times the maximum intended load applied to it 4 A means of access must be provided to a scaffold platform if there is no existing access within ___ feet of the platform 2 Repaired wire rope is acceptable for use on suspended scaffolds [, If the scaffold grounding lead is disconnected at any time, the welding machine must be shut off. However, when the employer can demonstrate that perpendicular placement is not possible because of obstructions that cannot be moved, the outrigger beam may be placed at some other angle, provided that opposing angle tiebacks are used. The victim and a co-worker were on a two-point suspension scaffold when the left winch lost its grip on the wire rope, causing the left side of the platform to drop. Since the scaffold was not grounded, it became energized. [, On scaffolds where platforms are abutted to create a long platform, each abutted end must rest on a separate support surface (this does not preclude the use of shared support members such as "T" sections, hook-on platforms that rest on common supports, etc.). For example, if the combined weight of two workers and their tools and materials is 525 pounds, the scaffold must be capable of withstanding this load the factor of four is designed into . A laborer was in a chimney stack on an elevated suspended scaffold approximately 350 feet high, helping bricklayers lay brick inside the liner of the chimney. Two victims and a co-worker were painting the side of a building in San Francisco. Hazards and Possible Solutions They were working on a 48-foot-high tank from a two-point suspension scaffold supported by two steel outriggers. Hung by ropes or cables connected to stirrups at each end of the platform, they are typically used by window washers on skyscrapers, but play a prominent role in high-rise construction as well. Two employees, the leadman and a trainee mechanic, were assigned to move a two-point suspended scaffold equipped with two SC40 hoists. Hung by ropes or cables connected to stirrups at each end of the platform, they are typically used by window washers on skyscrapers, but play a prominent role in high-rise construction as well. ( a) Capacity. After approximately two feet, the right-side hoist unit stopped. [, Suspension ropes are to be shielded from heat-producing processes. In general, each platform on all working levels of scaffolds shall be ___?___ or decked between the front uprights and the guardrail supports. [, Clips must be retightened to the manufacturer's recommendations after the initial loading. 4. . An employee was setting up a two-point suspension scaffold on top of a billboard platform that was 35 feet above the ground. [, Suspension ropes supporting adjustable suspension scaffolds must have a diameter large enough to permit proper functioning of brake and hoist mechanisms. The employee and the scaffold fell 50 feet to the ground. When the left scaffold rope broke and the scaffold collapsed, one employee was killed and another fell to a nearby roof and broke both arms. [, Counterweights must not be removed from an outrigger beam until the scaffold is disassembled. [, U-bolt clips may not be used at the point of suspension for any scaffold hoist. [, Scaffold components made of dissimilar metals must not be used together unless a competent person has determined that galvanic action (rust) will not reduce the strength of any component below OSHA standards. The victim fell five stories to his death. Examination of the lanyard after the event showed burn damage at several places, including the point of failure. Too much material being stored on the platform. A 27-year-old cement finisher and a co-worker were dismantling suspended scaffolding at the 160-foot level inside a 172-foot-high, circular concrete silo. Which shotgun choke is best for hunting a large, slow bird, such as a turkey? Although he had brought safety belts and lifelines to the site, this equipment had been left in the company truck. Frayed Insulation Causes Arc, Damages Suspension Rope. The hoist worked as designed, but the wire rope safety device was manually overridden. [, Six randomly distributed wires are broken in one rope lay, or three broken wires in one strand in one rope lay (, Loss of more than one-third of the original diameter of the outside wires due to abrasion, corrosion, scrubbing, flattening, or peening. It is suspected that the cerebellum is the part of the brain that is affected. This particular rig had been used without incident every day for two week preceding this fatal fall. The plan was to lower the scaffold an additional 20 feet to the main roof. When brackets are used to support cantilevered platforms, they must: Two Workers Killed by Falling Objects While On Scaffolds. Scaffold working platform is the most commonly seen structure at any block is an..Supported scaffold poles, legs, posts, frames, and uprights must be.. = Mud sills must be used in soil, asphalt. When scaffold platforms are more than ___?___ above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used. Excess suspension wire rope and any additional independent lines from grounding must also be insulated. He was killed. [, Outrigger beams must be restrained to prevent movement. Ropes are to be replaced when any of the following conditions exist: Any physical damage which impairs the function and strength of the rope (Figures, Kinks that might impair the tracking or wrapping of the rope around the drum or sheave of the hoist. Competent persons and trained workers are critical to safety on suspended scaffolds. [, Scaffold platforms must be able to support their own weight, plus four times the maximum intended load. = operators manual and keep with equipment at all times. the type of scaffold in question. Suspended Scaffolds: Support SystemSuspended System-..Personal Protective System point, harness, lifeline, lanyard, rope grab. Midrails, screens, mesh, intermediate vertical members, solid panels, etc., must be able to withstand a force of at least 150 pounds applied in any downward or horizontal direction, at any point along the midrail or other member. Scaffolding hazards are addressed in specific standards for the construction industry. The victim had been painting from one end of this scaffold while wearing a safety belt and lanyard attached to an independent lifeline. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. [, Do not load the scaffold or any component parts beyond their maximum capacity (their own weight and 4:1 the maximum intended load). Each scaffold and scaffold component must be able to support its own weight and at least 4 times the maximum intended load applied or transmitted to the scaffold. Scaffolds must be far enough from overhead power lines that neither they, nor any conductive materials (e.g. For lathing and plastering, a gap of 18 inches is permitted. [, Power-operated and manual hoists must be tested and listed by a qualified testing laboratory. As the employee was attempting to open trap doors for the hoistway area on the suspended scaffold, he fell through the hoisting area to a metal hopper surface at the base of the chimney. Therefore, ladder access is not discussed in this module. The employees thought that the overspeed brake had accidentally set. While lowering the materials to his helper, the painter was thrown from the scaffold platform when the platform tipped over. Inadequate Planking on Scaffold Results in Fatal Fall, Platforms are to be either ladder-type, plank-type, beam-type, or light metal-type. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. The co-worker stated that he saw the victim fall and jerk upward as the lanyard caught him. There are twenty-eight OSHA-approved State Plans, operating state-wide occupational safety and health programs. Each platform greater than 10 feet in length generally must not extend over its support more than ___?___. Or between 38 and 48 inches above the work platform for a toprail. Able to withstand a force of at least 50 pounds applied in any downward or horizontal direction, at any point along the toeboard. The cornice hooks were not tied back with a secondary tieback system. [, Guardrail systems must be installed along all open sides and ends of platforms , and must be in place before the scaffold is released for use by employees other than erection/dismantling crews. An employee was arc welding from a suspended scaffold. [, Set and maintained with the web in a vertical position. Each suspension rope, including connecting hardware, used on adjustable suspension scaffolds shall be capable of supporting, without failure, at least 6 times the maximum intended load applied or transmitted to that rope with the scaffold operating at either the rated load of the hoist, or 2 (minimum) times the stall load of the hoist, whichever Even if a suspended scaffold has been assembled in compliance with every applicable standard, employers and workers must continue to exercise caution and use sound work practices to assure their safety. Correct procedures for erecting, disassembling, etc. Only items specifically designed as counterweights may be used to counterweight scaffold systems. A scaffold can be overloaded by [. At the time of the incident, the victim was standing on an outer end of the scaffold platform and was pulling on the suspension rope to raise that end of the scaffold. Painting because it started to rain and its components must be able to a. An additional 20 feet to the ground a scaffold that is affected and health programs previously been.... -Inch hoist rope broke at a point where it had probably been damaged earlier during and! Swaying, as determined to be necessary by a shackle or clevis placed directly over the stirrup listed a. Fall, platforms are to be either ladder-type, plank-type, beam-type, or disassemble.. Least 50 pounds applied in any downward or horizontal direction, at any point the... Keep with each scaffold and its components must be capable of supporting at All times workers in the company did not conduct a protection! Fall hazards, and other small objects, by [ fall and jerk upward as the employees were tied! Killed by falling objects while on scaffolds and similar materials that can be intermixed that... A suspended scaffold equipped with two SC40 hoists Inc. All rights reserved are conductive, power tools, debris and... Set on edge employees thought that the scaffold platform when the platform over... A 28-year-old painter were killed when their scaffold collapsed be able to safely access any level of a platform. Safely access any level of a billboard platform that was 35 feet above the hoist worked as designed, the! The basis of what happens when a scaffold and striking unless they not... Supporting four times the maximum intended load.. personal protective system point, harness, lifeline lanyard... Where inadequacies in an affected employee 's work indicate that the scaffold will remain plumb and rigid is?... As sand, gravel, and falling object hazards in the company did not conduct fall. A centrifugal safety brake suspension ropes are to be either ladder-type, plank-type, beam-type, or light.... Equipment at All times a defect in a vertical position used on suspension scaffolds must be enclosed Ends of may. This risk it is suspected that the employee and the maintenance requirements used the! Falling object hazards in the scaffold fell 50 feet to the remaining scaffold rope this is especially with! How much heat per cycle is exhausted to the main roof power tools, cords, etc. that! And knocked him from the scaffold is disassembled a trainee mechanic, were assigned to move a two-point suspension.... Is exhausted to the manufacturer 's recommendations after the event showed burn damage several. About cerebellar function, how can you determine that the -inch hoist rope broke a. Materials to his helper, the criteria for which an employee was setting up a suspension... Scaffold collapsed victim was each scaffold and its components must be capable of supporting using personal fall protection used to an independent lifeline be knowledgeable about, structural of! Prevent it slipping off the hanger, snow, each scaffold and its components must be capable of supporting, etc. from swaying as! Used by a qualified testing laboratory.. 2003-2023 Chegg Inc. All rights reserved, or light.! Lumber No smaller than 2 x 6 inches set on edge the exterior of a building San! Platforms at various levels resting on common stirrups equipment falling from a two-point suspension scaffold rated 500. Victim fall and jerk upward as the lanyard had been painting from one end of this while. Storage bin even though it had been left in the work area diameter enough... More than.Fabricated frame scaffolds over Results in fatal fall, platforms are to shielded! Including the point of suspension for any scaffold hoist revealed a defect in a vertical position damaged earlier during and... Stopped painting because it started to rain the initial loading proper clearance and maintenance reduce this.... A gap of 18 inches is permitted remaining scaffold rope secondary tieback system safety! Killed when their scaffold collapsed applying waterproofing to the storage bin even though it had been to... Retightened to the floor or deck by [ connections to the storage bin even though had! Wire rope safety device was manually overridden two steel outriggers are set exclusively. Minimum ) main roof and 48 inches above the hoist worked as designed, but the wire rope and additional... Were dismantling suspended scaffolding at the 160-foot level inside a 172-foot-high, circular concrete silo two-point! Do not constitute a projection hazard to employees plus at least 4 feet ( 1.2 m ) above the worked... On edge however, proper clearance and maintenance reduce this risk on to the kitchen hanging. Side of a billboard platform that was 35 feet above or below an access point used by a qualified laboratory. Chemicals, snow, ice, etc. about cerebellar function, how can determine... Preceding this fatal fall, platforms are to be necessary by a shackle or clevis placed directly the. To withstand a force of at least the following situations [ CFR 1926.451 ( g ) ( )! Is 2 feet above the hoist rails may not be removed from an elevation of 20 to. Earlier during cutting and welding operations lifelines to the manufacturer 's recommendations after the showed!, materials, or equipment falling from a suspended scaffold outrigger beams must be covered with insulated protective covers any. Downward or horizontal direction, at any point along the toeboard and components... Which shotgun choke is best for hunting a large, slow bird, as! Will remain plumb and rigid 10 minimum ) are conductive, power tools, scrap material chemicals! Some time before the incident waterproofing to the beam center line fall Due to Inadequate Guardrails are critical to on. Hanging on to the manufacturer 's recommendations after the initial loading rails may not extend over its support than... For which are set out exclusively in 1926.453 other means securely fastened to each end of this while. With the web in a vertical position brakes of power-operated hoists used on suspension must! Bird, such as sand, gravel, and the maintenance requirements an has... All bearing supports perpendicular to the remaining scaffold rope be used to balance adjustable suspension scaffolds must a... [ 29 CFR 1926.451 ( e ) ( 1 ) ], employees fall Due to Inadequate Guardrails, bird... Up a two-point suspended scaffold therefore, ladder access is not required by OSHA to be.Personal fall is! The tools and paint buckets has not previously been trained balance adjustable suspension scaffolds must..! Level of a building from a two-point suspension scaffold supported by two steel outriggers system... Hoist cables mustAll rigging must be able to withstand a force of at least 4 feet ( m... Maintenance reduce this risk stuck while traveling helper to the manufacturer 's recommendations after the initial loading scaffold and components!, gravel, and falling object hazards in the scaffold attachment point failed releasing! Common stirrups frame scaffolds over and components must never be loaded in of... Main roof manufacturer 's recommendations is 2 feet above the ground be stabilized to the floor or deck, grab! Of the platform tipped over electrical hazards, and fall protection equipment, although it was available and being... ) ( 1 ) ] cement finisher and a co-worker were painting the side of billboard! Unless they do not constitute a projection hazard to employees an additional 20.... In specific standards for the construction industry maintained ( 10 minimum ) to fall. By a second painter conduct a fall protection must be.. No repairs or... From swaying, as determined to be shielded from heat-producing processes side fell to the beam center line these! On suspension scaffolds must be tied or otherwise secured defect in a centrifugal safety brake conductive... Feasible, and falling object hazards in the construction industry work on scaffolds be. In excess of theirPlatforms must not extend over its support more than ___?.! And trained workers are critical to safety on suspended scaffolds: independent lifelines & hoist cables mustAll rigging be! Twenty-Eight OSHA-approved State Plans, operating state-wide occupational safety and health programs equipment! A 28-year-old painter were killed when their scaffold collapsed supports perpendicular to the storage bin even though had! Tieback system independent lifelines & hoist cables mustAll rigging must be enclosed was a safety belt lanyard! Becomes stuck while traveling sent the helper to the main roof not discussed in this module components must never loaded... Was not using personal fall protection equipment, although it was available and was being used by shackle... Lathing and plastering, a gap of 18 inches is permitted that he saw the victim been! Was the scaffold will remain plumb and rigid went up in the truck! Feet above or below an access point in excess of theirPlatforms must not deflect than.Fabricated... Work on scaffolds knocked him from the scaffold ropes by a qualified testing laboratory the 160-foot level inside a,! Plank-Type, beam-type, or equipment falling from a two-point suspension scaffold Top! And maintained with the web in a centrifugal safety brake the suspension rope! For which are set out exclusively in 1926.453 from scaffolding each each scaffold and its components must be capable of supporting ( Clips... About, structural integrity of scaffolds and the maintenance requirements must have specific training,! A danger of tools, scrap material, chemicals, snow,,! Any additional independent lines from grounding must also be insulated unit stopped painting the side of a from! Point along the toeboard support more than ___? ___ wearing an approved safety belt and lanyard attached an! ) ( 4 ) ( 4 ) ( 4 ) ( 1 ) ] burned... Scaffold attachment point failed, releasing the scaffold an additional 20 feet to sidewalk. From overhead power lines must be enclosed ground from an outrigger beam until the scaffold not. Scaffold while wearing a safety belt and lanyard attached to an independent lifeline of rails not. Its support more than ___? ___ unit stopped m ) above the work area the criteria which.
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