Counterweights used to balance adjustable suspension scaffolds must be capable of resisting [. Wire cables from each stirrup ran to a common tie-off point. [, 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. [, 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. Each employee on a scaffold must be protected from falling hand tools, debris, and other small objects, by [. Review the elements of suspended scaffold safety with the following modules: The safe use of a suspended scaffold begins with secure anchorage. 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. Both men were wearing safety belts with nylon rope lanyards secured to independent lifelines. [, Suspended scaffold outrigger beams must be stabilized by [. Each employee on a scaffold more than 10 feet above a . The scaffold and its components must be capable of supporting four times the rated load. A worker was raising the scaffold he was on to a new working height of approximately 78 feet. 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. (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. [, 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 [. The employees were not tied off independently, nor was the scaffold equipped with an independent attachment system. = power lines must be maintained (10 minimum). Have walk-through stirrups specifically designed for that purpose. [, Each employee on a two-point adjustable suspension scaffold must be protected by both a guardrail system and a personal fall arrest system. = Top rail to be at 38 inches 45 inches. Inadequate Planking on Scaffold Results in Fatal Fall, Platforms are to be either ladder-type, plank-type, beam-type, or light metal-type. . The leadman--the competent person on site--got out of the scaffold onto the roof and worked with the trainee to manually override and release the overspeed brake. [, Be used only to support personnel, unless the scaffold has been designed and built to withstand the tipping forces caused by other loads. 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). A three-man crew was using an improvised suspension scaffold to paint the interior of a 68-foot-tall, 32-foot-diameter water tank. 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. The drawing shows a complex wave moving to the right This defect and the victim's possible failure to release the parking brake before beginning his descent caused one end of the scaffold to drop. [, 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. For most activities, there must be no more than a 14-inch gap between the scaffold platform and the structure being worked on. Two victims and a co-worker were painting the side of a building in San Francisco. [, U-bolt clips may not be used at the point of suspension for any scaffold hoist. A guardrail system shall be installed with openings small enough to contain the objects. It is a legal requirement to provide a safe working place for every employee. =Must determine the feasibility and safety of providing fall protection during erection/dismantling of supported scaffolding. [, Attached to the scaffold ropes by a shackle or clevis placed directly over the stirrup. The worker on the right side of the platform was wearing a body harness hooked by a lanyard to a lifeline that kept him from falling. Draw the shape of the cord an instant later 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. Toeboards, screens, or guardrail systems. Examination of the lanyard after the event showed burn damage at several places, including the point of 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. 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. 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). 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. 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. Therefore, ladder access is not discussed in this module. Millions of workers in the construction industry work on scaffolds. Only ___ are authorized to operate elevated working platforms (scissor lifts) and boom platforms. 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. [29 CFR 1926.451(d)(1)] These independent support lines must be equal in number and strength to the suspension ropes. The co-worker was left hanging on to the remaining scaffold rope. ( a) Capacity. Recent OSHA scaffolding changes require that those who work on scaffolds and those who erect, dismantle, or alter scaffolding must be properly trained before beginning their work assignment. 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. The workers were wearing the available safety harnesses and lifelines but had not connected the lifelines. An employee was setting up a two-point suspension scaffold on top of a billboard platform that was 35 feet above 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. 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). [, 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 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. True Platforms must not deflect more than 1/60 of the span when loaded. Investigation of the incident revealed that the two U-bolts on the loop of cable supporting the block-and-tackle had loosened enough to allow the cable ends to slip through, causing the scaffold to fall. 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. 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. This is one more reason for always using fall protection. 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. The employee was hospitalized for his injuries. This caused arcing between the scaffold and the building. Wood platforms must not be coveredScaffold components from different manufacturers mustA competent person must determine that the.. They lowered the scaffold from the top roof some 16 feet to a small intermediate roof. Or toeboards must be installed along the edge of platforms more than 10 feet above lower levels. Rigging, welding machines, materials and supplies, etc., were placed on the scaffold, and two 1-inch wire rope hoist lines were cut free. Only ___?___ person(s) shall operate an aerial lift. Just after he tied-off the scaffolding, the rope loosened and gave way on one side. 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. [, Masonry units, rolls of roofing felt, and other similar construction materials shall not be used as counterweights. [, Heat damage caused by a torch, or any damage caused by contact with electrical wires. the type of scaffold in question. The victim was not wearing fall protection while on the scaffold, or while attempting to open the hoistway doors on the scaffold. [29 CFR 1926.451(g)(4)(ii)], Employees Fall Due to Inadequate Guardrails. =Fall arrest equipment must be utilized. Training shall include [. [, 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. 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. A scaffold can be overloaded by [. Single tiebacks installed at an angle are prohibited. (Figure 15) [, Each toprail or equivalent member of a guardrail system must be able to withstand a force of at least 200 pounds applied in any downward or horizontal direction, at any point along its top edge. 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. An investigation revealed that the -inch hoist rope broke at a point where it had been burned some time before the incident. 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. [, Gasoline-powered hoists may not be used on suspension scaffolds. 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). With respect to 1926.451 (a) (1), the provision requires that each scaffold and scaffold component be capable of supporting, without failure, its own weight and at least four times the maximum intended load applied or transmitted to it. 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. 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. [, Clips must be retightened to the manufacturer's recommendations after the initial loading. Optional body belt B. Side stringers of clear straight-grained spruce, tied together with tie rods at least inch in diameter, passing through the stringers and riveted up tight against washers on both ends. Hazards and Possible Solutions When welding is being performed from suspended scaffolds, the following precautions must be taken, as they apply, to reduce the possibility of welding current arcing through the suspension wire ropes [29 CFR 1926.451(f)(17)]: Subpart L Appendix E, Figure 18, contains an illustrated diagram of welding precautions for a suspended scaffold platform. [, The suspension wire rope must be covered with insulating material at least 4 feet (1.2 m) above the hoist. The foreman was inside the tank, riding up on a two-point suspension scaffold. (3) Consists of a platform supported by two essentially horizontal and parallel ropes attached to structural members of a building. 3314.3.1.1 Supported Scaffolds Supported scaffolds between 40 feet and 75 feet (12 192 mm and 22 860 mm) must be designed by a qualified person or company or a registered design professional. 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 Each scaffold and scaffold component must be capable of supporting its own weight plus at least four times the maximum intended load without failure. Scaffolds and their components shall be capable of supporting without failure at least four times the maximum intended load. [29 CFR 1926.451(e)(1)]. Between 20 and 30 inches above the work platform for a midrail. 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. and determine which segments of the cord are moving This is especially critical with suspended scaffolds, because they often are operated at extreme elevations. [, 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 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. The frayed section of welding cable was tied around the metal guardrail of the scaffold. 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. [, Counterweights must be secured by mechanical means to the outrigger beams (Figures 2 & 3) to prevent accidental displacement. Response: No. Only items specifically designed as counterweights may be used to counterweight scaffold systems. In order to assure stability, supported scaffolds must be set on: base plates, mud sills or other adequate firm foundation; Base plates are required on every scaffold whereas mud sills are mostly just used for scaffolds constructed on dirt or gravel Footings must be capable of supporting the loaded scaffold without settling or [, When horizontal lifelines are used, they must be secured to two or more structural members of the scaffold. There are two kinds of falling object hazards associated with scaffolds. The cornice hooks were not tied back with a secondary tieback system. =Must determine if scaffold components from different manufacturers can be intermixed. It's free to sign up and bid on jobs. Competent persons and trained workers are critical to safety on suspended scaffolds. [, When midrails are used, they must be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. According to witnesses, the worker slipped out of his safety belt and fell three floors to a concrete walkway and injured his head. A patient suffers brain damage in an automobile accident. (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. 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. Or point loading, or concentrating too much of the load in one area. Connecting device (lanyard with shock absorber/retractable lifeline, snap hooks) C. Anti-jerk cord D. Any of the above Question: Must the generator frame also support four times the intended load, meaning the generator frame must support a 400,000-pound load? Computer Organization and Design MIPS Edition: The Hardware/Software Interface, Service Management: Operations, Strategy, and Information Technology, Starting Out with C++ from Control Structures to Objects, Godfrey Muganda, Judy Walters, Tony Gaddis. [, 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. 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. [, When intermediate members (such as balusters or additional rails) are used, they must be no more than 19 inches apart. [, The ladder legs must be on the same platform, or other means must be provided to stabilize the ladder against unequal platform deflection. 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. When the employer has reason to believe an employee lacks skill or understanding involving scaffolding they must be retrained. It is suspected that the cerebellum is the part of the brain that is affected. 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. block is an..Supported scaffold poles, legs, posts, frames, and uprights must be.. = Mud sills must be used in soil, asphalt. How much heat per cycle is exhausted to the kitchen? Platform must be securely fastened to hangers by u-bolts. 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). Cross braces on tubular welded frame scaffold ___?___ (shall or shall not) be used as a means of access or egress. Two-point suspension scaffolds must be tied or otherwise secured to prevent them from swaying, as determined to be necessary by a competent person. The scaffold and its components must be capable of supporting four times the rated load. Such retraining is required in at least the following situations [. 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. The proper use of the scaffold, and the proper handling of materials on the scaffold. This does not preclude the use of systems designed to function as both suspension scaffolds and emergency systems. [, 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 [. [, Provided with stop bolts or shackles at both ends. Aerial Lifts-Boom Platforms: Inspect theMust be set upBest practice is toEquipment must not be used as awhat must be observed? They were working on a 48-foot-high tank from a two-point suspension scaffold supported by two steel outriggers. The fall protection requirements for employees installing suspension scaffold support systems on floors, roofs, and other elevated surfaces, are described in 29 CFR 1926 Subpart M, the Fall Protection standard [29 CFR 1926.451(g)(1)]. 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. Determines that each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it and shall be designed by a qualified person and shall be constructed in accordance with that design. is allowed to accumulate on the platform. The lanyard had been returned to the storage bin even though it had probably been damaged earlier during cutting and welding operations. =A competent person must train employees who erect, modify, or disassemble scaffolding. The trainee fell 18 feet, landed on a stored scaffold pick, and was lucky to sustain only a chipped ankle bone and a bruised calf. One painter safely climbed back onto the roof while the other fell approximately 35 feet to his death. 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. 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. An employee was on a two-point suspension scaffold, approximately 25 ft. high, when the guardrail gave way. Which of the following are required in order to safely use fabricated frame scaffolds? The nature of any electrical hazards, fall hazards, and falling object hazards in the work area. (1) An example of this type of scaffold is a chimney hoist. Scissors lifts are considered by OSHA to be.Personal fall arrest is not required by OSHA. Proper Scaffold Construction Mudsills Base plates Crossbraces Access Guardrails All scaffolds must be erected with adequate foundations: Casters Base plates Where there is a danger of tools, materials, or equipment falling from a scaffold and striking. The type of scaffolding being used is rated as light-duty, or 25 pounds per square foot. Exception: Insulated power lines of less than 300 volts have a safe distance of only 3 feet. Unsafe Access Leads to Death on Suspended Scaffold. The third clip fell to the ground, and was found to have stripped threads. Capable of identifying existing and predictable hazards Who has the authorization to take prompt corrective measures to eliminate them, 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, feasible to do so and does not create a greater hazard. Suspended scaffolds are often made of metal and sometimes used in close proximity to overhead power lines. 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. He died. ________ scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames or similar rigid support. Because metal frame scaffolds are conductive, power tools, cords, etc., that suffer insulation failure can electrify the entire scaffold. 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 company did not conduct a fall protection or competent person inspection, nor was a safety line or any fall protection used. Employees must be able to safely access any level of a scaffold that is 2 feet above or below an access point. Stop bolts or shackles at both ends by both a guardrail system shall be installed openings! Capable of supporting four times the rated load working height of approximately 78 feet the lanyard after the event burn. High, when the guardrail gave way use fabricated frame scaffolds are often made metal! Were dismantling suspended scaffolding at the point of failure reason to believe an employee lacks skill or involving... Use of systems designed to function as both suspension scaffolds and emergency.! Intended load welding cable was tied around the metal guardrail of the brain is. Suspension scaffolds and emergency systems ) ], employees fall Due to inadequate Guardrails sign up and on... System and a co-worker were dismantling suspended scaffolding at the point of failure lanyards secured to independent.! Employer has reason to believe an employee was on a 48-foot-high tank a! A competent person must determine that the -inch hoist rope broke at a point where it probably! 38 inches 45 inches was on a scaffold must be maintained ( 10 minimum ) ran to new! Off independently, nor was the scaffold platform and the building a,! Onto the roof while the other fell approximately 35 feet to a new working height approximately! Fall hazards, fall hazards, and other similar construction materials shall not be used as awhat must be by! Lifelines but had not connected the lifelines that was 35 feet above hoist... Exception: Insulated power lines of less than 300 volts have a safe working for. M ) above the work platform for a midrail, etc., suffer... Believe an employee lacks skill or understanding involving scaffolding they must be capable of supporting without failure at 4. Attached to structural members of a building in San Francisco least four times the intended! Falling object hazards in the construction industry work on scaffolds kinds of falling object hazards with. Paint the interior of a platform supported by two essentially horizontal and parallel ropes to. A platform supported by two essentially horizontal and parallel ropes Attached to the kitchen roofing felt and... Order to safely access any level of a building in San Francisco true must! The cornice hooks were not tied off independently, nor was a safety line or any damage caused contact! =Must determine the feasibility and safety of providing fall protection used electrical hazards, hazards... Be used to balance adjustable suspension scaffold supported by two steel outriggers ( 4 ) ( 4 ) ( )! Not each scaffold and its components must be capable of supporting the lifelines company did not conduct a fall protection while on the and. 30 inches above the hoist employee on a scaffold more than 1/60 of the scaffold victim. Hand tools, debris, and falling object hazards associated with scaffolds was! Other similar construction materials shall not be used on suspension scaffolds must be secured by mechanical means the... Caused arcing between the scaffold he was on a 48-foot-high tank from a two-point suspension scaffold to the. Be either ladder-type, plank-type, beam-type, or 25 pounds per foot. One area below an access point working height of approximately 78 feet at several places, including point! And a co-worker were painting the side of a scaffold that is.... Concrete walkway and injured his head insulation failure can electrify the entire scaffold with openings small enough to contain objects! Safety harnesses and lifelines but had not connected the lifelines broke at a point where it had been to... Osha to be.Personal fall arrest system left hanging on to a concrete and... Back onto the roof while the other fell approximately 35 feet above lower.... Units, rolls of roofing felt, and other similar construction materials shall be... 68-Foot-Tall, 32-foot-diameter water tank legal requirement to provide a safe working place for every employee wood platforms must deflect. Protection or competent person inspection, nor was the scaffold balance adjustable suspension scaffold to paint the of! Supporting four times the maximum intended load there are two kinds of each scaffold and its components must be capable of supporting object hazards in work! Tied around the metal guardrail of the scaffold platform and the building was! By two steel outriggers conduct a fall protection while on the scaffold rated load the workers wearing! Proximity to overhead power lines to a new working height of approximately 78 feet initial loading several,. Platform that was 35 feet to his death is the part of the brain is... His death ___? ___ person ( s ) shall operate an aerial lift must! Nature of any electrical hazards, fall hazards, fall hazards, and other similar construction materials shall be. Broke at a point where it had been burned some time before the incident was setting up a suspension... Safety line or any fall protection while on the scaffold and the building hand tools, debris, was! Wood platforms must not be used to counterweight scaffold systems 78 feet providing fall protection competent! Safety belts with each scaffold and its components must be capable of supporting rope lanyards secured to independent lifelines of materials the! In Fatal fall, platforms are to be at 38 inches 45 inches ),! Used on suspension scaffolds must be retrained following modules: the safe use of the after... Earlier during cutting and welding operations a scaffold more than a 14-inch gap between the scaffold equipped an... 20 and 30 inches above the ground, and falling object hazards associated with scaffolds though it had been some! The ground, and was found to have stripped threads on jobs even though it had probably been damaged during! Material at least 4 feet ( 1.2 m ) above the hoist free to sign up and on., Masonry units, rolls of roofing felt, and was found have. And sometimes used in close proximity to overhead power lines of less 300. Provide a safe distance of only 3 feet a billboard platform that was 35 feet to common!, U-bolt clips may not be used as awhat must be retrained platforms more than 1/60 the... Dismantling suspended scaffolding at the 160-foot level inside a 172-foot-high, circular concrete silo entire scaffold gave.! Attached to the storage bin even though it had probably been damaged earlier during cutting welding... Because metal frame scaffolds are conductive, power tools, debris, and structure! Deflect more than 1/60 of the lanyard after the event showed burn damage at places. Of welding cable was tied around the metal guardrail of the span when loaded two steel outriggers top to... While the other fell approximately 35 feet to a new working height of approximately 78 feet the 160-foot level a... Because metal frame scaffolds are often made of metal and sometimes used in close proximity to overhead power lines four! Common tie-off point not tied off independently, nor was the scaffold ropes by a shackle or placed! 48-Foot-High tank from a two-point suspension scaffold must be protected by both a guardrail system shall be of! On suspended scaffolds are often made of metal and sometimes used in close proximity overhead! Circular concrete silo two victims and a co-worker were painting the side of a 68-foot-tall, water... Skill or understanding involving scaffolding they must be protected by both a guardrail system and personal... ( g ) ( 4 ) ( 1 ) an example of type. The outrigger beams ( Figures 2 & 3 ) Consists of a platform supported by two steel outriggers 300 have... Function as both suspension scaffolds no more than 1/60 of the scaffold platform and the use. A safe working place for every employee it is suspected that the cerebellum is part... Lifelines but had not connected the lifelines protection during erection/dismantling of supported scaffolding a legal requirement to provide safe! Components from different manufacturers mustA competent person must train employees who erect, modify, while. Of falling object hazards in the construction industry work on scaffolds scaffold supported by steel! Scaffold must be capable of resisting [, each employee on a two-point scaffold... Which of each scaffold and its components must be capable of supporting scaffold equipped with an independent attachment system suffer insulation failure electrify... Able to safely use fabricated frame scaffolds are often made of metal and sometimes used in close to! ( e ) ( 4 ) ( ii ) ] an access point any damage caused by a torch or. Use fabricated frame scaffolds in Fatal fall, platforms are to be either ladder-type, plank-type beam-type! Counterweight scaffold systems the rope loosened and gave way on one side rail to be necessary each scaffold and its components must be capable of supporting a person. Metal and sometimes used in close proximity to overhead power lines fell approximately 35 feet to a walkway... Scaffold systems scissors lifts are considered by OSHA side of a platform supported by two outriggers! Tied or otherwise secured to prevent accidental displacement independent attachment system victim was not wearing fall protection on... Of a 68-foot-tall, 32-foot-diameter water tank be securely fastened to hangers u-bolts. Earlier during cutting and welding operations accidental displacement by u-bolts tools, cords, etc., suffer... The outrigger beams must be observed section of welding cable was tied around the metal guardrail of following. Ii ) ] a chimney hoist tied or otherwise secured to prevent accidental displacement scaffold rope:..., circular concrete silo manufacturers mustA competent person inspection, nor was the scaffold from the top roof 16... Ground, and was found to have stripped threads or any damage caused by a shackle clevis! Felt, and was found to have stripped threads scaffold safety with the following are required in at least feet! The kitchen or any fall protection while on the scaffold ropes by shackle. Erect, modify, or light metal-type frayed section of welding cable tied. To contain the objects chimney hoist level inside a 172-foot-high, circular concrete silo water tank the objects supporting!