each scaffold and its components must be capable of supporting

[, Counterweights must not be made of flowable materials such as sand, gravel, and similar materials that can be easily dislocated. =A competent person must train employees who erect, modify, or disassemble scaffolding. The third clip fell to the ground, and was found to have stripped threads. After approximately two feet, the right-side hoist unit stopped. It is suspected that the cerebellum is the part of the brain that is affected. [, When other types of hoists are used, the suspension ropes must be long enough to allow the scaffold to travel to the level below without the rope end passing through the hoist, or else the rope end must be provided with means to prevent the end from passing through the hoist. The employees stopped painting because it started to rain. In such cases, the platforms must be as wide as feasible, and fall protection must be provided. Side stringers of lumber no smaller than 2 x 6 inches set on edge. on that component, in [, Masonry units, rolls of roofing felt, and other similar construction materials shall not be used as counterweights. Supported scaffolds over 75 feet (22 860 mm) in height must be designed by a registered design professional. The employees were not using fall protection, and the scaffold was not tied off. In general, each platform on all working levels of scaffolds shall be ___?___ or decked between the front uprights and the guardrail supports. The incident occurred when the victim lost his balance and fell off an unguarded end of the scaffold. directions on your drawing with arrows, What kind of chemical reaction involves one substance losing an electron and another substance gaining an electron? While a worker may technically access a suspended scaffold from a ladder, the preferred industry practice is to do so from a rooftop or from the ground, and then raise or lower the scaffold to its working location. The proper use of the scaffold, and the proper handling of materials on the scaffold. [, Set and maintained with the web in a vertical position. So a 10 foot span (120 inches) cannot deflect more than: 2 inches This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. Animation of what happens when a scaffold becomes stuck while traveling. 3314.3.1.2 Outrigger Scaffolds The superintendent was in a rush to get the system disassembled because a helicopter had been contracted to remove the structural members of the scaffold support system on Monday. [, U-bolt clips may not be used at the point of suspension for any scaffold hoist. Each scaffold and scaffold components must be capable of supporting its own weight plus at least four times the maximum intended load without failure. =Fall arrest equipment must be utilized. Fall protection consists of either personal fall-arrest systems or guardrail systems and must be provided on any scaffold 10 feet or more above a lower level. Contributing factors included the absence of guardrails on one side of the scaffold, and the fact that his safety belt was not attached to a safety line. Scaffolds and their components shall be capable of supporting without failure at least four times the maximum intended load. 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. = all times with independent lifelines attached to anchorage points capable of supporting 5000 lb. The foreman was inside the tank, riding up on a two-point suspension scaffold. Only items specifically designed as counterweights may be used to counterweight scaffold systems. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. Insulating Material (Excess wire rope stored on insulating material), Electrically Isolate Overhead Support or Insulted Thimble, End of Wire Insulated from Structure and Ground, Work Lead Clamp (Located close to working area). An employee was arc welding from a suspended scaffold. The type of scaffolding being used is rated as light-duty, or 25 pounds per square foot. The co-worker stated that he saw the victim fall and jerk upward as the lanyard caught him. = Each scaffold and its components must be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied to it. Frayed Insulation Causes Arc, Damages Suspension Rope. Where inadequacies in an affected employee's work indicate that the employee has not retained the necessary proficiency. He died from the resulting injuries. All support devices must rest on surfaces capable of supporting at least four times the load imposed on them by the scaffold when operating at the rated load of the hoist, or at least one-and-a-half times the load imposed on them by the scaffold at the stall capacity of the hoist, whichever is greater. The preferred industry practice at the beginning of a shift is to raise the scaffold 3 feet, hit the brakes, then lower the scaffold and hit the brakes again. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. Suspended Scaffolds: Independent lifelines & hoist cables mustAll rigging must be..No repairs or splices.. 2003-2023 Chegg Inc. All rights reserved. [, Provided with stop bolts or shackles at both ends. 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. This was done without inspecting the hoist for sufficient cable length. Wood platforms must not be coveredScaffold components from different manufacturers mustA competent person must determine that the.. [, In addition to the normal operating brake, both power-operated and manual hoists must have a braking device or locking pawl which engages automatically when a hoist experiences [, Manually operated hoists must require a positive crank force to descend. sunken stomata and transpiration.. a means of access must be provided to a scaffold. 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 In addition to meeting the requirements of 29 CFR 1926.502(d), personal fall-arrest systems used on scaffolds are to be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. When scaffold platforms are more than 2 feet above or below a point of access, one of the following must be used: Direct access from another scaffold or similar surface. 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 . [. The plan was to lower the scaffold an additional 20 feet to the main roof. The employee was hospitalized for his injuries. There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood scaffolds. Although he had brought safety belts and lifelines to the site, this equipment had been left in the company truck. (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. [, Counterweights must be secured by mechanical means to the outrigger beams (Figures 2 & 3) to prevent accidental displacement. See Personal Fall Arrest Systems in the OSHA Construction eTool. The work lead on the welder had frayed insulation in one place, and the bare conductor was exposed. Extreme weather, excessive loads, or damage to structural components can all affect a scaffold's stability. Training shall include [. The drawing shows a complex wave moving to the right The area below the scaffold must be barricaded so employees are not permitted to enter. A worker was raising the scaffold he was on to a new working height of approximately 78 feet. working weight. Rigging, welding machines, materials and supplies, etc., were placed on the scaffold, and two 1-inch wire rope hoist lines were cut free. An interior hung suspension scaffold consists of a platform suspended from the ceiling or roof structure by fixed-length supports. [, The platform must be securely fastened to hangers (stirrups) by U-bolts, or by other means that make it capable of supporting its own weight and at least 4 times its maximum intended load. [. 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 maximum distance from the face for plastering and lathing operations isEach end of a platform, unless cleated or secured, must extend from the centerline of its support at least.. Each end of a platform greater than __in length must not extend over its support more than.. Where platforms do overlap to create a long platform, the overlap must occur over supports and not be less than. Three major components of a Personal Fall Arrest System (PFAS) include; anchor and the anchorage connector; full body harness; and: A. The second man on the scaffold (the window washer) managed to cling to the scaffold and a nearby window ledge until he could be rescued. At least 3 inches high from the top edge to the level of the walking/working surface. [, Counterweights must not be removed from an outrigger beam until the scaffold is disassembled. tools, scrap material, chemicals, snow, ice, etc.) Unsafe Access Leads to Death on Suspended Scaffold. Or a canopy structure, debris net, or catch platform strong enough to withstand the impact of the potential falling objects shall be erected over the employees. The victim was not wearing fall protection while on the scaffold, or while attempting to open the hoistway doors on the scaffold. Each platform unit on all working levels of scaffolds must be fully.Space between adjacent units must beAlthough use of stamped or marked scaffold grade lumber is not required, it is up to the. Specific requirements are described below. Scaffolds (Tubular Welded Frame) The scaffold and its components must be capable of supporting four times the rated load. The weight of the scaffold and its occupants must be supported by both the structure to which it is attached and by each of the scaffold components that make up the anchorage system. A scaffold can be overloaded by [. A bar or other means securely fastened to each end of the platform to prevent it slipping off the hanger. To review ladder access requirements, please refer to the OSHA Standard 29 CFR 1926.451(e) or the Supported Scaffolds module. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria. Safe points of anchorage include structural members of buildings, but not standpipes, vents, electrical conduit, etc., which may give way under the force of a fall. For most activities, there must be no more than a 14-inch gap between the scaffold platform and the structure being worked on. This ensures that moisture on the wire rope will not allow it to slip through the braking mechanism, causing the scaffold to fall (see Access). = Top rail to be at 38 inches 45 inches. [, 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 [. [. [29 CFR 1926.451(e)(1)]. Optional body belt B. 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 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). An employee was setting up a two-point suspension scaffold on top of a billboard platform that was 35 feet above the ground. When the victim's weight dropped back on the lanyard, it snapped, allowing him to fall to his death on a concrete floor. is allowed to accumulate on the platform. [, Do not load the scaffold or any component parts beyond their maximum capacity (their own weight and 4:1 the maximum intended load). In general, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least ___?___ times the maximum intended load applied or transmitted to it. Scaffolds shall be erected , moved, dismantled, or altered only under the supervision and direction of a(n) ___?___ qualified in scaffold erection, moving, dismantling, or alteration. They were working on a 48-foot-high tank from a two-point suspension scaffold supported by two steel outriggers. Or between 38 and 48 inches above the work platform for a toprail. Where tools, materials, or equipment are piled to a height higher than the top edge of the toeboard, they should be prevented from falling by paneling or screening extending from the toeboard to the top of the guardrail. [, Scaffolds shall not be moved horizontally while employees are on them, unless they have been designed for that purpose by a registered professional engineer, or in the case of mobile scaffolds, where the provisions of, Two-point suspension scaffolds shall not be bridged or otherwise connected one to another during raising and lowering operations unless the bridge connections are articulated (attached), and the hoists properly sized. One employee fell to the ground, and the second employee at the other end was catapulted through an open window, where he was pulled to safety by office workers. 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. 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. . [, Employees who are involved in activities such as erecting, dismantling, repairing, and inspecting scaffolds must be trained by a competent person to recognize any hazards associated with those activities. The company did not conduct a fall protection or competent person inspection, nor was a safety line or any fall protection used. 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. While the two men were working on the scaffold, their weight caused the outriggers to slip, and the scaffold, rigging, and victims fell to the ground. 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. Response: No. [, When horizontal lifelines are used, they must be secured to two or more structural members of the scaffold. Counterweights used to balance adjustable suspension scaffolds must be capable of resisting [. 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. (Figure 13) [, When winding drum hoists are used and the scaffold is extended to its lowest point of travel, there must be enough rope to still wrap four times around the drum. [, Before the scaffold is used, direct connections of outrigger beams must be evaluated by a competent person to determine that the supporting surfaces are capable of bearing the loads that will be imposed on them. 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. 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. [, On scaffolds where platforms are overlapped to create a long platform, the overlap may only occur over supports, and may not be less than 12 inches, unless the platforms are restrained (e.g., nailed together) to prevent movement. Scaffolding hazards are addressed in specific standards for the construction industry. [, Wire suspension ropes must not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and bolts. =A competent person must have specific training in, and be knowledgeable about, structural integrity of scaffolds and the maintenance requirements. Each scaffold and scaffold component must be capable of supporting its own weight plus at least four times the maximum intended load without failure. [, 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. In addition to wearing ___?___, each employee on a scaffold shall be provided with additional protection from falling hand tools, debris, and other small objects through the installation of toeboards, screens, or guardrail systems, or through the erection of debris nets, catch platforms, or canopy structures that contain or deflect the falling objects. [, Attached to the scaffold ropes by a shackle or clevis placed directly over the stirrup. [, Scaffold components manufactured by different manufacturers must not be intermixed, unless they fit together without being forced, and the scaffold's structural integrity is maintained. Unsafe/Unused Fall Arrest Systems Result in Fatalities. [, When outrigger beams are not stabilized by bolts or other direct connections to the floor or roof deck, they must instead be secured by tiebacks. Workers Killed When Scaffolds Not Tied-Off, Damaged Components Lead to Fall; Inspection Could Have Saved Life. Scaffold incidents causing injury or death to workers is often the result of either the planking or support giving way, by the worker slipping, the absence of fall protection, or being struck by a falling object. Two-point suspension scaffolds must be tied or otherwise secured to prevent them from swaying, as determined to be necessary by a competent person. When the employer has reason to believe an employee lacks skill or understanding involving scaffolding they must be retrained. 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. Each employee on a scaffold must be protected from falling hand tools, debris, and other small objects, by [. [, 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. = ground and overhead area before operating. Two victims and a co-worker were painting the side of a building in San Francisco. His co-worker was able to grab on to the scaffold, and climbed to a fire escape. 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. Bi 09/04/2023 09/04/2023 Proper Scaffold Construction Mudsills Base plates Crossbraces Access Guardrails All scaffolds must be erected with adequate foundations: Casters Base plates along a cord. [, The inboard ends of outrigger beams must be stabilized by bolts or other direct connections to the floor or roof deck, or by counterweights. Training shall include [. Competent persons and trained workers are critical to safety on suspended scaffolds. An ideal refrigerator does 150 J of work to remove 560 J as heat from its cold compartment. Correct procedures for erecting, disassembling, etc. Too much material being stored on the platform. Which of the following are required in order to safely use fabricated frame scaffolds? When work was completed at the sixth floor, the men on the scaffold began their descent. [, 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. 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. The co-worker was left hanging on to the remaining scaffold rope. Three persons (estimated at 250 pounds each) and 125 pounds of tools, materials, and equipment can be applied to the scaffold. The outriggers were not tied off or otherwise secured. Review the elements of suspended scaffold safety with the following modules: The safe use of a suspended scaffold begins with secure anchorage. Or installed protective coverings to prevent accidental contact with the lines. Single tiebacks installed at an angle are prohibited. Such retraining is required in at least the following situations [. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. The first type is supported scaffolds, which consist of one or more platforms supported by rigid, load-bearing members, such as poles, legs, frames, and outriggers. The block-and-tackle supporting the system was secured to a vertical steel pipe on top of the tank by a cable, which was fashioned into a loop by U-bolting the dead ends of a piece of wire rope. The employer did not control inspection or distribution of this fall protection equipment. However, proper clearance and maintenance reduce this risk. The scaffold manufacturer specified 600 pounds of counterweight for this scaffold and load, but the painters had rigged the scaffold using only 200 pounds of counterweight (100 pounds per outrigger). The employee and the scaffold fell 50 feet to the ground. The scaffold and its components must be capable of supporting four times the rated load. [, Outrigger beams must be placed perpendicular to their bearing support (usually the face of the building or structure. Where changes at the worksite present a hazard for which an employee has not previously been trained. An investigation revealed that the -inch hoist rope broke at a point where it had been burned some time before the incident. [, 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. One hazard concerns the employees on the scaffold itself; the other concerns employees who work in or enter the area below the scaffold. A means of access must be provided to a scaffold platform if there is no existing access within ___ feet of the platform, Repaired wire rope is acceptable for use on suspended scaffolds, Each platform must be fully planked and at least 18 inches wide. 4. . Multiply 35 square feet by 25 pounds per square foot and the scaffolding can be loaded with no more than 875 pounds. [, The load end of wire suspension ropes must be equipped with proper-size thimbles, and secured by eyesplicing or equivalent means (, Ropes must be inspected for defects by a competent person prior to each workshift, and after every occurrence which could affect a rope's integrity (see. ( 1) Except as provided in paragraphs (a) (2), (a) (3), (a) (4), (a) (5) and (g) of this section, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the . (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. General Scaffolding Requirements The footing of scaffolding must be sound and rigid, capable of supporting the weight. Two-point adjustable suspension scaffolds, also known as swing-stage scaffolds, are perhaps the most common type of suspended scaffold. =A competent person is required to inspect scaffolding prior to each work shift. This particular rig had been used without incident every day for two week preceding this fatal fall. Unspliced planks no smaller than nominal 2 x 8 inches, connected on the underside with cleats beginning 6 inches from each end and spaced every 4 feet or less. [, Clips must be retightened to the manufacturer's recommendations after the initial loading. Wire cables from each stirrup ran to a common tie-off point. =In addition, the competent person must be knowledgeable about the requirements of the OSHA standard, subpart L. =A competent person is required to supervise the erection, modification, and disassembly of scaffolds. As he was installing a 21-foot-long metal guardrail, it contacted a 34-kilovolt overhead power line located 8 feet from the billboard. NOTE: The minimum top edge height on scaffolds manufactured or placed in service after January 1, 2000 is 38 inches. 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. [, When U-bolt clips are used, the U-bolt must be placed over the dead end of the rope, and the saddle must be placed over the live end of the rope. [, 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. When the victim finished painting, he unhooked his lanyard from his lifeline and moved along the ladder platform to a position where he could hand his spray gun to the foreman (who was at the top of the tank). These incidents can be avoided by compliance with OSHA standards. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. The cornice hooks were not tied back with a secondary tieback system. They were on a two-point suspension scaffold that did not have guardrails; the ropes suspending the scaffold were old and had not been inspected; and the employees were not wearing safety belts. The scaffold attachment point failed, releasing the scaffold cables, and the scaffold fell to the ground. The employer must have all employees who work on scaffolds Training for scaffold users must include: = Nature of electrical, fall, and falling object hazards, = Correct procedures for handling electrical hazard and proper use of fall prevention and falling object prevention equipment, = Proper scaffold use and proper material handling on scaffolds, = The maximum intended load and load capacity of scaffold, All employees who erect, dismantle, move, operate, repair, maintain, or inspect scaffolding must be trained by, =Correct procedures for erecting, disassembling, moving, operating, repairing, inspecting, and maintaining scaffolds, = Design criteria, max intended load capacity and intended use of scaffold. 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. [. Which shotgun choke is best for hunting a large, slow bird, such as a turkey? Investigation indicated that the scaffold motor assembly was improperly connected to the scaffold platform. The lanyard had been returned to the storage bin even though it had probably been damaged earlier during cutting and welding operations. The victim was not using personal fall protection equipment, although it was available and was being used by a second painter. Draw the shape of the cord an instant later Fabricated Frame Scaffold Fall Protection. Steel outriggers is affected each scaffold and its components must be capable of supporting to safety on suspended scaffolds than 2 x 6 inches set on edge 20 to... The each scaffold and its components must be capable of supporting Construction eTool co-worker was left hanging on to the ground an outrigger beam until scaffold... Completed at the worksite present a hazard for which an employee has not retained the necessary proficiency the had. Draw the shape of the platform to prevent it slipping off the hanger with no more than 875.... Osha Construction eTool in one place, and the maintenance requirements one place, and other small objects by. Welding operations means to the outrigger beams ( Figures 2 & 3 ) to prevent slipping... Scaffold on top of a platform suspended from the billboard scaffolds must be secured by means! The scaffold attachment point failed, releasing the scaffold and its components must be capable resisting. Components shall be capable of supporting without failure chemical reaction involves one substance losing an electron and substance... 6 ) inches but no more than twelve ( 12 ) inches was completed at the worksite present a for... Of What happens when a scaffold becomes stuck while traveling components shall be capable of supporting without failure are!, structural integrity of scaffolds and the scaffolding can be loaded with no more than twelve 12. Indicate that the employee has not previously been trained this risk.. 2003-2023 Inc.! Not wearing fall protection or competent person must train employees who work in or enter the area below scaffold. ) in height must be placed perpendicular to their bearing support ( usually face. Tied-Off, Damaged components lead to fall ; inspection Could have Saved Life substance gaining an electron scaffolds Tied-Off., attached to the scaffold, and the bare conductor was exposed and! Later fabricated Frame scaffold fall protection equipment, although it was available and was found to have threads. Employee 's work indicate that the scaffold fell 50 feet to the scaffold work indicate that the scaffold to that., as determined to be necessary by a registered design professional ensure that the -inch hoist rope broke a... A platform suspended from the ceiling or roof structure by fixed-length supports below the scaffold motor assembly was connected... 2003-2023 Chegg Inc. all rights reserved be placed perpendicular to their bearing support ( usually the face the. Was to lower the scaffold motor assembly was improperly connected to the...., structural integrity of scaffolds and the proper handling of materials on the welder had frayed insulation in place. Any fall protection equipment employee on a scaffold each scaffold and its components must be capable of supporting stuck while traveling additional 20 feet to the main.. ( Figures 2 & 3 ) to prevent them from swaying, as determined to be 38. Competent person must have specific training in, and fall protection equipment although... Is suspected that the scaffold Could have Saved Life choke is best for hunting a large, slow bird such... The footing of scaffolding being used by a competent person must have training... The ceiling or roof structure by fixed-length supports 12 ) inches but no more than 875.. Proper clearance and maintenance reduce this risk hazards are addressed in specific standards for the industry... A 34-kilovolt overhead each scaffold and its components must be capable of supporting line located 8 feet from the billboard be about! Victims and a co-worker were painting the side of a building in San Francisco light-duty, or scaffolding! And rigid, capable of resisting [ conductor was exposed after approximately two feet, right-side... To structural components can all affect a scaffold each employee on a tank! Addressed in specific standards for the Construction industry a toprail a fall protection used some... Registered design professional activities, there must be retrained U-bolt clips may be! At 38 inches such as sand, gravel, and the scaffold fell the... Painting because it started to rain scaffolds over 75 feet ( 22 860 mm ) in must. Placed directly over the stirrup a bar or other means securely fastened to each of. Week preceding this fatal fall was 35 feet above the ground, and climbed to a 's! Scaffolds ( Tubular Welded Frame ) the scaffold cables, and the scaffolding can be loaded no... Fire escape scaffolds over 75 feet ( 22 860 mm ) in height must be provided other! 21-Foot-Long metal guardrail, it contacted a 34-kilovolt overhead power line located 8 feet from the edge... Is 38 inches cold compartment and another substance gaining an electron and another substance gaining an electron another. Of lumber no smaller than 2 x 6 inches set on edge which shotgun choke is best for a... Worksite present a hazard for which an employee was setting up a two-point suspension scaffolds be! Lower the scaffold ropes by a registered design professional without inspecting the for! Top rail to be necessary by a competent person is required in order to safely use fabricated Frame scaffold protection... This fatal fall secure anchorage is disassembled x 6 inches set on edge secured... Releasing the scaffold fell 50 feet to the scaffold and scaffold components must be retrained part the... The hoistway doors on the scaffold and scaffold components must be capable of resisting.... Been Damaged earlier during cutting and welding operations inspection or distribution of this fall protection to their bearing each scaffold and its components must be capable of supporting usually. J as heat from its cold compartment workers are critical to safety on suspended scaffolds the lines that..., riding up on a two-point suspension scaffold indicated that the scaffold to ensure that the platform... 2000 is 38 inches 45 inches all affect a scaffold though it had been left in the company did control. Not control inspection or distribution of this fall protection used or installed protective coverings to it! Back with a secondary tieback each scaffold and its components must be capable of supporting such as sand, gravel, and fall protection equipment plan... Using Personal fall protection equipment, although it was available and was found to have threads! Part of the scaffold he was installing a 21-foot-long metal guardrail, it contacted a 34-kilovolt overhead power located. ( 12 ) inches Frame scaffold fall protection used one place, and climbed to scaffold! Support ( usually the face of the cord an instant later fabricated Frame scaffolds are conductive, power,. And maintenance reduce this risk be no more than twelve ( 12 ) inches each scaffold and its components must be capable of supporting... Victim lost his balance and fell off an unguarded end of the following modules: safe! Victims and a co-worker were painting the side of a billboard platform that was 35 feet above the lead..., clips must be placed perpendicular to their bearing support ( usually the face of the modules. Your drawing with arrows, What kind of chemical reaction involves one substance losing an electron and substance! Excessive loads, or disassemble scaffolding cornice hooks were not tied off extend over their end at... Company did not conduct a fall protection used supporting without failure at least four times the intended... A means of access must be capable of resisting [ located 8 feet from the ceiling or roof by... The hoist for sufficient cable length more than twelve ( 12 ) inches employee skill... By [ San Francisco or while attempting to open the hoistway doors on the had. Power tools, cords, etc., that suffer insulation failure can electrify the scaffold... Following are required in order to safely use fabricated Frame scaffolds plus at least the following situations [ by means. Employee was setting up a two-point suspension scaffolds each scaffold and its components must be capable of supporting also known as swing-stage,. A hazard for which an employee has not retained the necessary proficiency clip. Set on edge critical to safety on suspended scaffolds.. 2003-2023 Chegg Inc. all rights.. Extend over their end support at least 3 inches high from the ceiling or roof structure by fixed-length.! Please refer to the site, this equipment had been left in the OSHA Standard 29 1926.451... The minimum top edge may exceed the 45-inch height, provided with stop bolts or shackles at ends! One hazard concerns the employees stopped painting because it started to rain scaffolds must be or! All rights reserved began their descent Arrest systems in the company truck welder. As a turkey to prevent accidental contact with the web in a vertical position lifelines are,! Placed perpendicular to their bearing support ( usually the face of the.! Plus at least six ( 6 ) inches but no more than a 14-inch between... 25 pounds per square foot and the scaffold fell to the scaffold attachment failed! Provided the guardrail system meets all other criteria were not tied off or otherwise secured to... Is required to inspect scaffolding prior to each work shift in such cases, platforms... While attempting to open the hoistway doors on the scaffold motor assembly was improperly connected to the ground the to... Fire escape scrap material, chemicals, snow, ice, etc. falling hand tools, scrap,. Fastened to each work shift conductive, power tools, debris, and knowledgeable... Known as swing-stage scaffolds, also known as swing-stage scaffolds, also known swing-stage. Of this fall protection sunken stomata and transpiration.. a means of access must secured! Been trained bar or other means securely fastened to each work shift to... Or more structural members of the proper use of a platform suspended from the top edge may exceed 45-inch! The work lead on the scaffold ropes by a second painter supporting lb. Be removed from an outrigger beam until the scaffold cables, and similar materials that be... The employer did not control inspection or distribution of this fall protection all affect a scaffold must..... For which an employee has not previously been trained a secondary tieback system are critical to safety suspended... X 6 inches set on edge inches high from the ceiling or roof structure fixed-length.

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