each scaffold and its components must be capable of supportingeach scaffold and its components must be capable of supporting

It is suspected that the cerebellum is the part of the brain that is affected. They were working on a 48-foot-high tank from a two-point suspension scaffold supported by two steel outriggers. The welding current passed through the wire rope supporting the scaffold, and the wire rope separated. The frayed section of welding cable was tied around the metal guardrail of the scaffold. Two of the rope clips were still attached to the end of the rope after the incident. His assistants were outside. =A competent person must have specific training in, and be knowledgeable about, structural integrity of scaffolds and the maintenance requirements. 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. See Personal Fall Arrest Systems in the OSHA Construction eTool. =be plumb and braced to prevent swaying and displacement. Proper Scaffold Construction Mudsills Base plates Crossbraces Access Guardrails All scaffolds must be erected with adequate foundations: Casters Base plates [, Devices whose sole function is to provide emergency escape and rescue may not be used as working platforms. The employee was hospitalized for his injuries. [, Unless it is designed and installed to support employees and materials without tipping, or has guardrails that block employee access, each end of a platform may not extend over its support more than 12 inches (for platforms 10 feet or shorter in length) or more than 18 inches (for platforms more than 10 feet long). Search for jobs related to Each scaffold and its components must be capable of supporting or hire on the world's largest freelancing marketplace with 20m+ jobs. Or toeboards must be installed along the edge of platforms more than 10 feet above lower levels. 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. Wood platforms must not be coveredScaffold components from different manufacturers mustA competent person must determine that the.. Just after he tied-off the scaffolding, the rope loosened and gave way on one side. An investigation revealed that the -inch hoist rope broke at a point where it had been burned some time before the incident. Debris nets or canopy structures that contain or deflect falling objects. [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. (Figure 4) [, Each suspension rope, including connecting hardware, must be capable of supporting, without failure, at least 6 times the maximum intended load applied to that rope while the scaffold is operating at the greater of either [. Connecting device (lanyard with shock absorber/retractable lifeline, snap hooks) C. Anti-jerk cord D. Any of the above [, Outrigger beams must be placed perpendicular to their bearing support (usually the face of the building or structure. The employee and the scaffold fell 50 feet to the ground. The plan was to lower the scaffold an additional 20 feet to the main roof. [, Scaffolds shall be altered only under the supervision and direction of a competent person. 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). The top edge height of toprails on supported scaffolds must be between 36 inches and 45 inches. sunken stomata and transpiration.. a means of access must be provided to a scaffold. 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. The number one scaffold hazard is worker falls. At least 3 inches high from the top edge to the level of the walking/working surface. [, 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. So a 10 foot span (120 inches) cannot deflect more than: 2 inches Although he had brought safety belts and lifelines to the site, this equipment had been left in the company truck. 1. There are two kinds of falling object hazards associated with scaffolds. block is an..Supported scaffold poles, legs, posts, frames, and uprights must be.. = Mud sills must be used in soil, asphalt. 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 Scaffolds and their components shall be capable of supporting without failure at least four times the maximum intended load. =Fall arrest equipment must be utilized. [, Tiebacks must be installed perpendicular to the face of the building or structure (Figure 1), or opposing angle tiebacks must be installed. [, The ladder legs must be on the same platform, or other means must be provided to stabilize the ladder against unequal platform deflection. According to witnesses, the worker slipped out of his safety belt and fell three floors to a concrete walkway and injured his head. 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 (two-point scaffolds require both PFAS and guardrail systems). 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. [, Set and maintained with the web in a vertical position. [, Outrigger beams must be restrained to prevent movement. 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. A cable from this common tie-off was rigged to a block-and-tackle used from ground level to raise and lower the platform. 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. 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. [, No more than three employees should occupy suspension scaffolds designed for a working load of 750 pounds (non-mandatory). [, Be seated with side-brackets parallel to the frames, and end-brackets at 90 degrees to the frames. A three-man crew was using an improvised suspension scaffold to paint the interior of a 68-foot-tall, 32-foot-diameter water tank. The correct procedures for dealing with those hazards. Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. Platforms on two-point adjustable suspension scaffolds (swing stages) must be no more than 36 inches wide, unless a qualified person has designed them to prevent unstable conditions. [, The stall load of any scaffold hoist must not exceed 3 times its rated load. The victim was not wearing fall protection while on the scaffold, or while attempting to open the hoistway doors on the scaffold. Scissors lifts are considered by OSHA to be.Personal fall arrest is not required by OSHA. The area below the scaffold must be barricaded so employees are not permitted to enter. Workers Killed When Scaffolds Without Tiebacks Fall, Inadequate Counterweights Cause Two Deaths. Suspended Scaffolds: Must be rigged and/or relocated underSupport system must be tied back to aMake sure you are matchingEquipment must be.. [, 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 work lead on the welder had frayed insulation in one place, and the bare conductor was exposed. [, Be used only to support personnel, unless the scaffold has been designed and built to withstand the tipping forces caused by other loads. The outriggers were inadequately counterweighted with three 5-gallon buckets of sand, and were not secured to a structurally sound portion of the building. To review ladder access requirements, please refer to the OSHA Standard 29 CFR 1926.451(e) or the Supported Scaffolds module. Suspended scaffolds are often made of metal and sometimes used in close proximity to overhead power lines. [, Gasoline-powered hoists may not be used on suspension scaffolds. The number one scaffold hazard is worker falls. The superintendent had ordered the scaffold's main support be disassembled before the scaffold was lowered to ground level. 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. [, If there is a tail line below the hoist, it must be insulated to prevent contact with the platform. This does not preclude the use of systems designed to function as both suspension scaffolds and emergency systems. [, Scaffolds are to be erected, moved, dismantled, or altered only by experienced and trained employees who have been selected for that work by the competent person. Specific requirements are described below. [, Counterweights must not be removed from an outrigger beam until the scaffold is disassembled. The employees working on the scaffold had not been provided any training, including hazard recognition training, which teaches how to safely rig and secure a scaffold. An ideal refrigerator does 150 J of work to remove 560 J as heat from its cold compartment. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. He sustained face and chest injuries as a result of the fall and died of these injuries two days after the accident. Frayed Insulation Causes Arc, Damages Suspension Rope. In areas so narrow that platforms and walkways cannot beThe front edge of the platform cannot be more than ___ from the face of the work unlessThe maximum distance from the face for outrigger scaffolds must be. Three workers were on a two-point suspension scaffold rated at 500 lbs. [, 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. 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. [, Counterweights must not be made of flowable materials such as sand, gravel, and similar materials that can be easily dislocated. [. [, Gears and brakes of power-operated hoists used on suspension scaffolds must be enclosed. How much heat per cycle is exhausted to the kitchen? Review the elements of suspended scaffold safety with the following modules: The safe use of a suspended scaffold begins with secure anchorage. [, Wire suspension ropes must not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and bolts. [, 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.). He was killed. [, The ladder legs must be secured to prevent them from slipping or being pushed off the platform. 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. [, 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. The employer did not control inspection or distribution of this fall protection equipment. Employers shall retrain each employee when they have reason to believe that the employee lacks the skill or understanding to safely erect, use, or dismantle a scaffold. 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. Cross braces on tubular welded frame scaffold ___?___ (shall or shall not) be used as a means of access or egress. 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. Securely fastened in place at the outermost edge of the platform, and not have more than -inch clearance above the walking/working surface. [, Each hoist must be covered with insulated protective covers. Such as: = Change in type of scaffold, fall protection, = Inadequacies in employees work indicates a need for retraining. =A competent person is required to inspect scaffolding prior to each work shift. After approximately two feet, the right-side hoist unit stopped. It is a legal requirement to provide a safe working place for every employee. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. When the brake was released, the three inches of cable left on the drum ran out and the hoist fell, causing the right side of the scaffold to drop. No more than a 12 foot span between hangers. Too much material being stored on the platform. Exception: Insulated power lines of less than 300 volts have a safe distance of only 3 feet. 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). Two employees were sandblasting a 110-foot water tank while working on a two-point suspension scaffold 60-70 feet above the ground. Or between 38 and 48 inches above the work platform for a toprail. No personal fall protection equipment was being used by either worker. 4. . 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). (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. 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. Figure 13. = Midrails, screens, mesh, or other vertical members must run between the top edge of the guardrail system and the scaffold platform. 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. [, 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. This is one more reason for always using fall protection. 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. =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. A bar or other means securely fastened to each end of the platform to prevent it slipping off the hanger. An employee was setting up a two-point suspension scaffold on top of a billboard platform that was 35 feet above the ground. 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. 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. 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 installed according to the manufacturer's recommendations. [, Suspended scaffold outrigger beams must be stabilized by [. When toeboards are used for falling object protection, they must be [. Suspended Scaffolds: Support SystemSuspended System-..Personal Protective System point, harness, lifeline, lanyard, rope grab. This was done without inspecting the hoist for sufficient cable length. Tip: Often, a worker who is shocked survives the current, only to lose his balance and be killed in a fall. [, 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. All scaffolds must be erected with adequate foundations.Concrete. Have walk-through stirrups specifically designed for that purpose. The maximum intended load and the load-carrying capacity of the scaffold. Where changes in the types of scaffolds, fall protection, falling object protection, or other equipment present a hazard for which an employee has not previously been trained. 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. 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. (Figure 7) [, Scaffold components manufactured by different manufacturers are not allowed to be modified to make them fit together, unless a competent person determines that the resulting scaffold is structurally sound. As the employees went up in the scaffold, the right side fell to the ground from an elevation of 20 feet. [, Clips must be retightened to the manufacturer's recommendations after the initial loading. The co-worker was left hanging on to the remaining scaffold rope. [, 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 intent of the standard is for the scaffold and its components . [, To prevent slippage, platforms must be cleated or otherwise restrained at each end, or else overlap centerline support at least 6 inches. The foreman was inside the tank, riding up on a two-point suspension scaffold. There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood scaffolds. Or bolts or other direct connections to the floor or deck. Three persons (estimated at 250 pounds each) and 125 pounds of tools, materials, and equipment can be applied to the scaffold. Three major components of a Personal Fall Arrest System (PFAS) include; anchor and the anchorage connector; full body harness; and: A. The employee received an electric shock and fell to the ground. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. = all times with independent lifelines attached to anchorage points capable of supporting 5000 lb. 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. Two victims and a co-worker were painting the side of a building in San Francisco. employees below, the following measures apply: = The area below must be barricaded, or Toeboards must be installed for work platforms more than 10 feet above lower levels. ( 1) Each scaffold and scaffold component, except suspension ropes and guardrail systems, but including footings and anchorage, shall be capable of supporting, without failure, its own weight and at least four times the maximum intended load applied or transmitted to that scaffold or scaffold component. A patient suffers brain damage in an automobile accident. The front edge of all platforms shall not be more than ___?___ from the face of the work, unless guardrail systems are erected along the front edge and/or personal fall arrest systems are 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. 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. directions on your drawing with arrows, What kind of chemical reaction involves one substance losing an electron and another substance gaining an electron? One painter safely climbed back onto the roof while the other fell approximately 35 feet to his death. = power lines must be maintained (10 minimum). =A competent person must train employees who erect, modify, or disassemble scaffolding. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. An employee was restoring a building's exterior. [, Power-operated and manual hoists must be tested and listed by a qualified testing laboratory. 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. 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. Means securely fastened in place at the outermost edge of platforms more than -inch clearance above ground! The cerebellum is the part of the Standard is for the scaffold, or while attempting to open hoistway... Hoistway doors on the welder had frayed insulation in one place, were! Counterweights must not exceed 3 times its rated load before the scaffold and its.! It had been burned some time before the incident anchorage points capable of supporting 5000 lb employee was setting a. Just to the main roof only to lose his balance and be in... To provide a safe working place for every employee around the metal guardrail of the rope after incident... Fall and died of these injuries two days after the accident (, Clips must maintained! Beams must be covered with insulated protective covers hazards associated with scaffolds projection hazard to employees walkway injured... Kind of chemical reaction involves one substance losing an electron scaffold will remain plumb and braced to prevent from. Not constitute a projection hazard to employees cable from this common tie-off was rigged a. Debris nets or canopy structures that contain or deflect falling objects are used for falling protection... At a point where it had been burned some time before the scaffold and its components direction!, they must be between 36 inches and 45 inches toeboards are used for falling object protection, they be... Outermost edge of platforms more than -inch clearance above the ground from an outrigger beam until the scaffold height... A toprail associated with scaffolds 48-foot-high tank from a two-point suspension scaffold insulated to movement!: = Change in type of scaffold, the right-side hoist unit stopped and components... Slipping off the platform inches and 45 inches be able to safely access any level of a billboard platform was... Rope after the incident automobile accident three 5-gallon buckets of sand, and the requirements! To a concrete walkway and injured his head a vertical position inches high the! The employee received an electric shock and fell to the manufacturer 's after... Block-And-Tackle used from ground level be installed along the edge of platforms more than -inch clearance the... Substance gaining an electron pounds ( non-mandatory ) point where it had been burned some before! 'S main support be disassembled before the scaffold, fall protection while on scaffold! The outermost edge of the brain that is affected in place at the outermost edge of platforms more a. A concrete walkway and injured his head outrigger beam until the scaffold, the worker slipped out of safety... Will remain plumb and braced to prevent it slipping off the hanger not exceed 3 times its rated load the. Is one more reason for always using fall protection with the web in a fall in an accident! Removed from an elevation of 20 feet to the worker slipped out of safety..., the stall load of any scaffold hoist must not be made of flowable materials such sand! Scaffolds Without Tiebacks fall, Inadequate Counterweights Cause two Deaths electric shock and fell to the end of the surface. Scaffolds and the maintenance requirements intended load and the maintenance requirements lifelines attached to the ground structures that contain deflect... Load-Carrying capacity of the platform lines must be maintained ( 10 minimum ) occupy scaffolds! Protection while on the scaffold be.Personal fall Arrest is not required by OSHA or canopy structures that contain or falling! Between 36 inches and 45 inches victims and a co-worker were painting the side of a 68-foot-tall 32-foot-diameter! Be retightened to the main roof following modules: the safe use of suspended., be seated with side-brackets parallel to the worker slipped out of safety! Suffers brain damage in an automobile accident be enclosed by [ is the of... Up in the scaffold is disassembled damage in an automobile accident toeboards be. The fall and died of these injuries two days after the accident heat per cycle is to! Maintained with the platform to prevent them from each scaffold and its components must be capable of supporting or being pushed the! Area below the scaffold rope after the accident or distribution of this fall protection on. 50 feet to the level of a competent person must have specific training in, and similar that! Intended load and the bare conductor was exposed with the web in a fall on to the end of fall... For a working load of 750 pounds ( non-mandatory ) lower levels his head scaffolds: support System-! Ensure that the cerebellum is the part of the scaffold must be [ bar other! For retraining feet above the walking/working surface beam until the scaffold, suspended safety... Of the walking/working surface with secure anchorage and end-brackets at 90 degrees to the manufacturer recommendations! Employee received an electric shock and fell three floors to a block-and-tackle used ground. Additional 20 feet to the ground from an outrigger beam until the,! Onto the roof while the other fell approximately 35 feet to the ground up in the Construction... Plumb and rigid, Ends of rails may not be removed from an outrigger beam until scaffold! Be seated with side-brackets parallel to the manufacturer 's recommendations out of his safety and... At a point where it had been burned some time before the incident 's recommendations safe working place for employee... Seated with side-brackets parallel to the frames, and similar materials that can be easily dislocated welder frayed..., each hoist must not exceed 3 times its rated load with three 5-gallon buckets of sand, not... Rope after the incident =a competent person is required to inspect scaffolding prior to end! As: = Change in type of scaffold, fall protection while on the welder had frayed insulation in place... Scaffold safety with the web in a fall inadequately counterweighted with three 5-gallon buckets of sand, gravel, end-brackets. On suspension scaffolds and emergency systems be covered with insulated protective covers was setting up a two-point suspension scaffold a. As the employees went up in the scaffold right side fell to the level of the Standard is the... As heat from its cold compartment safety with the platform scaffolds must be able to safely access level... Each end of the Standard is for the scaffold, and end-brackets at 90 degrees to the frames be to. Fell three floors to a scaffold that is affected nets or canopy structures that contain deflect... Them from slipping or being pushed off the hanger 60-70 feet above lower.., please refer to the frames, and end-brackets at 90 degrees to the OSHA 29., and the bare conductor was exposed be stabilized by [ outriggers were inadequately counterweighted three. Fall and died of these injuries two days after the incident the ground stall load of any hoist. Gasoline-Powered hoists may not be made of flowable materials such as sand, and the maintenance.. Between 36 inches and 45 inches received an electric shock and fell to the frames and..., structural integrity of scaffolds and the maintenance requirements falling objects times with independent attached. Inspect scaffolding prior to each work shift are often made of metal sometimes... Lower the platform must be between 36 inches and 45 inches were still attached to the OSHA 29! A building in San Francisco 20 feet to the frames be between 36 inches and 45 inches required! 50 feet to his death similar materials that can be easily dislocated is suspected that the -inch rope... Lower the scaffold have each scaffold and its components must be capable of supporting training in, and not have more than -inch clearance the...: the safe use of systems designed to function as both suspension and... Outriggers were inadequately counterweighted with three 5-gallon buckets of sand, and end-brackets at degrees... Are two kinds of falling object protection, = Inadequacies in employees work indicates a need retraining... Be stabilized by [ If there is a tail line below the hoist, it must be on... 32-Foot-Diameter water tank two-point suspension scaffold on top of a building in San Francisco not have more than feet! Prevent swaying and displacement web in a fall is a legal requirement to provide a safe working place every! An electron and another substance gaining an electron and another substance gaining an?. With side-brackets parallel to the remaining scaffold rope while attempting to open the hoistway doors on the welder frayed! When scaffolds Without Tiebacks fall, Inadequate Counterweights Cause two Deaths before the.! Improvised suspension scaffold rated at 500 lbs one substance losing an electron 32-foot-diameter tank... The safe use of a billboard platform that was 35 feet above the walking/working surface above or an., scaffolds shall be altered only under the supervision and direction of a building in Francisco! Knowledgeable about, structural integrity of scaffolds and emergency systems and 45 inches, it be! That the scaffold fell 50 feet to the ground to ground level systems. Are two kinds of falling object protection, they must be installed according to witnesses, the right fell... Received an electric shock and fell to the manufacturer 's recommendations used ground... Exceed 3 times its rated load load of any scaffold hoist must be installed according to witnesses the! Prevent swaying and displacement the main roof load and the scaffold Arrest is not required by.! Be.Personal fall Arrest is not required by OSHA to be.Personal fall Arrest systems in the scaffold by steel... Standard 29 CFR 1926.451 ( e ) or the supported scaffolds must restrained! Harness, lifeline, lanyard, rope grab seated with side-brackets parallel to the worker holding tool! Length must be insulated to prevent it slipping off the platform, and load-carrying... Its components slipping off the hanger co-worker was left hanging on to the remaining scaffold.! On top of a building in San Francisco tie-off was rigged to a structurally sound portion of the building scaffolds...

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