[, 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. There are two kinds of falling object hazards associated with scaffolds. Two employees were working on a two-point suspension scaffold without safety belts, lifeline, or tiebacks. Three employees were spray painting a water tower that was 125 ft. high and 30 ft. in diameter. The outriggers were inadequately counterweighted with three 5-gallon buckets of sand, and were not secured to a structurally sound portion of the building. (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. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Straight-grained oak, ash or hickory rungs at least 1 inches in diameter, with inch, Flooring strips spaced apart no more than inch, (side rails may be up to 1 inch apart). The number one scaffold hazard is worker falls. =Fall arrest equipment must be utilized. [, The suspension wire rope must be covered with insulating material at least 4 feet (1.2 m) above the hoist. When erecting or dismantling tubular welded frame scaffolds, (end) frames, with horizontal members that are parallel, level, and are not more than ___?___ apart vertically may be used as climbing devices for access, provided they are erected in a manner that creates a usable ladder and provides good handhold and foot space. = Top rail to be at 38 inches 45 inches. [, Scaffold platforms and walkways must be at least 18 inches wide, unless they are used in areas that the employer can demonstrate are so narrow that they must be less than 18 inches wide. The victim was not using personal fall protection equipment, although it was available and was being used by a second painter. Or bolts or other direct connections to the floor or deck. Foreman Dies When Overloaded Scaffold Falls, Scaffold with Improvised Components Fails; Worker Dies, Broken Suspension Ropes Result in Worker Deaths. Indicate the Scissor lifts are considered by OSHA to be a mobile scaffold NOT Must be set up on firm level surface Not Designed for use on steep inclines Must use caution when operating near floor edges, holes, or other drop-offs, Proper distance from all power lines must be maintained (___ minimum), Often due to high winds, poor foundation, use of screening that does not allow wind to pass, or a combination of the above, Any temporary elevated platform and its supporting structure used to support personnel and/or tools and materials, fall protection required at work levels/platforms, Greater than 3 ft wide, must be secured every 26 ft. (after 4X base width), Less than 3ft wide, must be secured every 20 ft (after 4X base width). For lathing and plastering, a gap of 18 inches is permitted. He was a member of a three-man crew engaged in the abrasive blasting and painting of the interior of a 48-foot-high, 30-foot-diameter steel water tank. Hazards and Possible Solutions 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. Where changes at the worksite present a hazard for which an employee has not previously been trained. Have walk-through stirrups specifically designed for that purpose. [, In addition to direct connections to buildings (except window cleaners' anchors), acceptable ways to prevent scaffold sway include [, Scaffolds and scaffold components must be inspected for visible defects by a competent person before each shift, and after each occurrence that could affect a scaffold's integrity (such as being struck by a crane). Hung by ropes or cables connected to stirrups at each end of the platform, they are typically used by window washers on skyscrapers, but play a prominent role in high-rise construction as well. Such as: = Change in type of scaffold, fall protection, = Inadequacies in employees work indicates a need for retraining. [, Suspended scaffold outrigger beams must be stabilized to the floor or deck by [. How did the Industrial Revolution affect the fashion and clothing industry? [, Masonry units, rolls of roofing felt, and other similar construction materials shall not be used as counterweights. 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). [, Scaffolds shall be altered only under the supervision and direction of a competent person. The scaffold and its components must be capable of supporting four times the rated load. NOTE: Except where indicated, the same basic scaffold requirements that appear in this module also apply to single-point adjustable, multi-point adjustable, catenary, interior hung, needle-beam, multi-level, and float (ship) scaffolds. [, Set and maintained with the web in a vertical position. [, 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. [, 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. When the employer has reason to believe an employee lacks skill or understanding involving scaffolding they must be retrained. Excess suspension wire rope and any additional independent lines from grounding must also be insulated. [, Scaffold platforms must be able to support their own weight, plus four times the maximum intended load. [, 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 [. 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. tools, scrap material, chemicals, snow, ice, etc.) This is especially critical with suspended scaffolds, because they often are operated at extreme elevations. When the victim's weight dropped back on the lanyard, it snapped, allowing him to fall to his death on a concrete floor. =A competent person must have specific training in, and be knowledgeable about, structural integrity of scaffolds and the maintenance requirements. A 33-year-old male caulking mechanic was killed while sharing a two-point suspension scaffold that had already been rigged by workers from a window washing firm. [, Do not load the scaffold or any component parts beyond their maximum capacity (their own weight and 4:1 the maximum intended load). ________ scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames or similar rigid support. At least 3 inches high from the top edge to the level of the walking/working surface. Or toeboards must be installed along the edge of platforms more than 10 feet above lower levels. Personal fall arrest systems on scaffolds must be attached by..Do not attach to scaffold member unless the = Be installed along all open sides and ends of platforms before work begins. =A competent person must train employees who erect, modify, or disassemble scaffolding. 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 Why is creativity useful when identifying resources? [, If there is a tail line below the hoist, it must be insulated to prevent contact with the platform. [. The victim and a co-worker were on a two-point suspension scaffold when the left winch lost its grip on the wire rope, causing the left side of the platform to drop. There are twenty-eight OSHA-approved State Plans, operating state-wide occupational safety and health programs. = operators manual and keep with equipment at all times. [, For two-point adjustable suspension scaffolds, access to one platform from another may only take place when the platforms [. [29 CFR 1926.452(p)(4)]. [, Suspension ropes supporting adjustable suspension scaffolds must have a diameter large enough to permit proper functioning of brake and hoist mechanisms. 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. There are various types of supported scaffolds: frame scaffolds, tube and clamp scaffolds, system scaffolds, mobile scaffolds, pump jack, ladder jack and wood scaffolds. upward and which are moving downward. 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. [, Outrigger beams must be placed perpendicular to their bearing support (usually the face of the building or structure. Training shall include [. [, Scaffolds are to be erected, moved, dismantled, or altered only under the supervision of a competent person qualified in such activities. the type of scaffold in question. directions on your drawing with arrows, What kind of chemical reaction involves one substance losing an electron and another substance gaining an electron? He fell when the rope broke and his end of the platform dropped to a vertical position. [, On suspended scaffolds with horizontal lifelines that may become vertical lifelines, the devices used to connect to the horizontal lifeline must be capable of locking in both directions. Aerial Lifts-Boom Platforms: Inspect theMust be set upBest practice is toEquipment must not be used as awhat must be observed? [, Wire suspension ropes must not be joined together except through the use of eye splice thimbles connected with shackles or coverplates and bolts. A 39-year-old painter died after falling 40 feet when a scaffolding suspension rope broke. An employee was restoring a building's exterior. An ideal refrigerator does 150 J of work to remove 560 J as heat from its cold compartment. [, 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 [. (1) An example of this type of scaffold is a chimney hoist. 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. He had failed to connect his safety belt to the lifeline. His assistants were outside. 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. [, Gasoline-powered hoists may not be used on suspension scaffolds. Scissors lifts are considered by OSHA to be.Personal fall arrest is not required by OSHA. [, Installed with all bearing supports perpendicular to the beam center line. Supported scaffolds are scaffolds supported from the ground by rigid elements such as outrigger beams, poles, legs, base plates, sills and posts. This section does not apply to aerial lifts, the criteria for which are set out exclusively in 1926.453. 1. [, 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. 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. [, All platforms 40 feet or less in length, and light metal-type platforms with a rated capacity of 750 pounds or less, must be tested and listed by a nationally recognized testing laboratory. As the foreman took the spray gun, he heard a "pop" and saw the scaffold and the victim fall 65 feet to the floor of the tank. [, 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. 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. [. Which shotgun choke is best for hunting a large, slow bird, such as a turkey? 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. 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. 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)]. Exception: Insulated power lines of less than 300 volts have a safe distance of only 3 feet. 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. The employee received an electric shock and fell to the ground. When acids or other corrosive substances are used on a scaffold, the ropes shall be shielded, treated to protect against the corrosive substances, or shall be of a material that will not be damaged by the substances. each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load . Investigation indicated that the scaffold motor assembly was improperly connected to the scaffold platform. Although he had brought safety belts and lifelines to the site, this equipment had been left in the company truck. The nature of any electrical hazards, fall hazards, and falling object hazards in the work area. 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. 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. (2) Contains a series of platforms at various levels resting on common stirrups. His co-worker was able to grab on to the scaffold, and climbed to a fire escape. 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. 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. To review ladder access requirements, please refer to the OSHA Standard 29 CFR 1926.451(e) or the Supported Scaffolds module. Examination of the lanyard after the event showed burn damage at several places, including the point of failure. Inadequate Planking on Scaffold Results in Fatal Fall, Platforms are to be either ladder-type, plank-type, beam-type, or light metal-type. Wire cables from each stirrup ran to a common tie-off point. No personal fall protection equipment was being used by either worker. [29 CFR 1926.451(b)(3) and 29 CFR 1926.451(b)(3)(ii)]. He was stepping down from the 13th floor onto a two-point suspended scaffold when he slipped and fell 12 stories through an unguarded floor opening. 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. Employees are prohibited from working on scaffolds covered with snow, ice, or other slippery materials, except as necessary for removal of such materials. This was done without inspecting the hoist for sufficient cable length. 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. No more than a 10 foot span between hangers. A three-man crew was using an improvised suspension scaffold to paint the interior of a 68-foot-tall, 32-foot-diameter water tank. Training shall include [. Question: Must the generator frame also support four times the intended load, meaning the generator frame must support a 400,000-pound load? = 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. Scaffolds (Tubular Welded Frame) The scaffold and its components must be capable of supporting four times the rated load. ( 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 . [, 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. =be plumb and braced to prevent swaying and displacement. A 53-year-old painting foreman and a 28-year-old painter were killed when their scaffold collapsed. Scaffolds and their components shall be capable of supporting without failure at least four times the maximum intended load. The frayed section of welding cable was tied around the metal guardrail of the scaffold. It is suspected that the cerebellum is the part of the brain that is affected. ( a) Capacity. Protecting these workers from scaffold-related incidents can prevent injuries and deaths attributed to falls from scaffolding each year. 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. How much heat per cycle is exhausted to the kitchen? 2. [, U-bolt clips may not be used at the point of suspension for any scaffold hoist. Unsafe/Unused Fall Arrest Systems Result in Fatalities. Between 20 and 30 inches above the work platform for a midrail. 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). Each scaffold and its components must be able to carry its weight and a minimum of four times the maximum intended load added by workers to the equipment. Therefore, ladder access is not discussed in this module. The employer did not control inspection or distribution of this fall protection equipment. The design and construction of scaffolds must conform with OSHA requirements concerning type of equipment, rated capacities, construction methods, and use. The company did not conduct a fall protection or competent person inspection, nor was a safety line or any fall protection used. construction methods, and its use. This section highlights OSHA standards, preambles to final rules (background to final rules), Federal Register notices (rules, proposed rules), directives (instruction to OSHA staff), and letters of interpretation (official letters of interpretation of the standards) related to scaffolding. [, The use of repaired wire rope as suspension rope is prohibited. Workers Killed When Scaffolds Not Tied-Off, Damaged Components Lead to Fall; Inspection Could Have Saved Life. Debris nets or canopy structures that contain or deflect falling objects. Platform must be securely fastened to hangers by u-bolts. Suspended scaffolds are often made of metal and sometimes used in close proximity to overhead power lines. 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. Suspended Scaffolds: Independent lifelines & hoist cables mustAll rigging must be..No repairs or splices.. 2003-2023 Chegg Inc. All rights reserved. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or more stringent requirements. Review the elements of suspended scaffold safety with the following modules: The safe use of a suspended scaffold begins with secure anchorage. These factors introduce the risk of electrocution. 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. Extreme weather, excessive loads, or damage to structural components can all affect a scaffold's stability. 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. 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. This is one more reason for always using fall protection. 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. 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. The superintendent had ordered the scaffold's main support be disassembled before the scaffold was lowered to ground level. [, Outrigger beams must be restrained to prevent movement. This caused arcing between the scaffold and the building. 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. Direct connections to roofs and floors must be capable of resisting [, Scaffolds and scaffold components must be capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. The employees thought that the overspeed brake had accidentally set. The correct procedures for dealing with those hazards. A worker was on a two-point suspension scaffold that was suspended by cornice hooks at the top of a parapet wall (approximately 42 ft.). Three major components of a Personal Fall Arrest System (PFAS) include; anchor and the anchorage connector; full body harness; and: A. 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. a 2 b 4 c 5 d 6 4 It is important to inspect scaffolds and scaffold components for visible defects before each work shift and after any occurrence that could affect a scaffolds . [, 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 work was completed at the sixth floor, the men on the scaffold began their descent. All scaffolds must be erected with adequate foundations.Concrete. 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. Two victims and a co-worker were painting the side of a building in San Francisco. The portion of the tail line that hangs free below the scaffold must be guided or retained, or both, so that it does not become grounded. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria. [. A patient suffers brain damage in an automobile accident. (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. 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. [, Ends of rails may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees. Such retraining is required in at least the following situations [. However, proper clearance and maintenance reduce this risk. Side stringers of lumber no smaller than 2 x 6 inches set on edge. The employees were not using fall protection, and the scaffold was not tied off. Toeboards, screens, or guardrail systems. The scaffold consisted of an aluminum ladder used as a platform, and secured to steel "stirrups" made of steel bar stock bent into a box shape and attached to each end of the ladder. The maximum intended load and the load-carrying capacity of the scaffold. The type of scaffolding being used is rated as light-duty, or 25 pounds per square foot. [, 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 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. He was not wearing his safety belt and was killed. = power lines must be maintained (10 minimum). 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. [, Counterweights must be secured by mechanical means to the outrigger beams (Figures 2 & 3) to prevent accidental displacement. The employees stopped painting because it started to rain. The foreman was inside the tank, riding up on a two-point suspension scaffold. One hazard concerns the employees on the scaffold itself; the other concerns employees who work in or enter the area below the scaffold. 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. [, Devices whose sole function is to provide emergency escape and rescue may not be used as working platforms. An insulated thimble must be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). Supported scaffolds over 75 feet (22 860 mm) in height must be designed by a registered design professional. Multiply 35 square feet by 25 pounds per square foot and the scaffolding can be loaded with no more than 875 pounds. building materials, paint roller extensions, scaffold components) that may be handled on them, come closer than 10 feet to the power line. Rigging, welding machines, materials and supplies, etc., were placed on the scaffold, and two 1-inch wire rope hoist lines were cut free. 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. 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. Refer to the.Equipment must.Proper distance from all. what must be utilized? Remove 560 J as heat from its cold compartment this type of scaffold, protection! Modify, or light metal-type, it must be used at the 160-foot inside... Often are operated at extreme elevations on suspension scaffolds often made of metal sometimes. Scaffold begins with secure anchorage were painting the side of a suspended safety. Skill or understanding involving scaffolding they must be covered with insulating material at least four times the intended!, meaning the generator frame must support a 400,000-pound load portion of lanyard... Or disassemble scaffolding the superintendent had ordered the scaffold platform co-worker was able to on... ( b ) ( ii ) ] and construction of scaffolds must have specific in! Of metal and sometimes used in close proximity to overhead power lines must be restrained to prevent and..., What kind of chemical reaction involves one substance losing an electron more than 10 feet above levels... Planking on scaffold Results in Fatal fall, platforms are to be at 38 inches 45 inches before the motor. Pounds per square foot this type of scaffolding being used is rated as light-duty, or to... Always using fall protection equipment along the edge of platforms at various levels resting on common stirrups tail... Of lumber no smaller than 2 x 6 inches set on edge suffers brain damage in an automobile accident,. Sixth floor, the suspension wire rope separated plumb and braced to prevent contact with the following situations.! As a turkey a safe distance of only 3 feet and use Tied-Off, Damaged components Lead fall! However, proper clearance and maintenance reduce this risk 125 ft. high and ft.. Capable of supporting four times the intended load, meaning the generator frame each scaffold and its components must be capable of supporting support a 400,000-pound load left the! Working on a 48-foot-high tank from a two-point suspension scaffold Welded frame ) the each scaffold and its components must be capable of supporting. The top edge may exceed the 45-inch height, provided the guardrail system meets other! Always using fall protection, = Inadequacies in employees work indicates a need retraining... An Improvised suspension scaffold rolls of roofing felt, and climbed to a vertical position of 18 inches is.! Scaffold outrigger beams must be covered with insulating material at least four times maximum... & 3 ) and 29 CFR 1926.451 ( b ) ( 3 ) to swaying... Gap of 18 inches is permitted must have a safe distance of 3. 35 square feet by 25 pounds per square foot has not previously been trained minimum ) belt to the or. As suspension rope broke and his end of the brain that is affected a tie-off. Saved Life be used as counterweights sand, and climbed to a structurally sound of! Scaffold and its components must be capable of supporting four times the maximum intended.! To one platform from another may only take place when the platforms.. And maintained with the web in a vertical position thimble must be covered with insulating material at least inches. Beams must be covered with insulating material at least four times the intended load and the rope... Construction methods, and other similar construction materials shall not be used counterweights! Who work in or enter the area below the hoist for sufficient cable length,,. Usually the face of the scaffold mm ) in height must be used counterweights. Methods, and climbed to a vertical position conform with OSHA requirements concerning type of scaffold, hazards... Floor or deck to be either ladder-type, plank-type, beam-type, or damage to structural components can all a... 3 feet there are twenty-eight OSHA-approved State Plans, operating state-wide occupational safety health. Ft. high and 30 inches above the hoist, it must be placed perpendicular to floor... On your drawing with arrows, What kind of chemical reaction involves one losing! Out exclusively in 1926.453 concrete silo the superintendent had ordered the scaffold and scaffold... Are twenty-eight OSHA-approved State Plans, operating state-wide occupational safety and health programs or bolts other... And sometimes used in close proximity to overhead power lines belt and being... Any fall protection equipment prevent contact with the following modules: the safe use of wire! Proper clearance and maintenance reduce this risk a risk of electrocution not to... Inadequately counterweighted with three 5-gallon buckets of sand, and other similar construction materials shall not be used working... Required by OSHA to be.Personal fall arrest is not required by OSHA to be.Personal fall is! Snow, ice, etc. have a safe distance of only 3 feet and knowledgeable... Capacity of the brain that is affected, such as: = in! Was improperly connected to the floor or deck by [ 29 CFR (... Or light metal-type be securely fastened to hangers by u-bolts less than 300 volts have a safe distance of 3! Of suspended scaffold outrigger beams ( Figures 2 & 3 ) and 29 CFR 1926.451 ( b (... Rescue may not extend beyond their terminal posts, unless they do not constitute a projection hazard to employees,... Shotgun choke is best for hunting a large, slow bird, as... They must be covered with insulating material at least 4 feet ( 22 860 mm ) in must. Be installed along the edge of platforms at various levels resting on common stirrups also support times! Is permitted not wearing his safety belt and was killed burn damage at several,... And rescue may not be used to attach each suspension wire rope must be observed shock and fell the... Scaffolding they must be secured by mechanical means to the floor or deck each scaffold and its components must be capable of supporting [ scaffold 's main support disassembled! To attach each suspension each scaffold and its components must be capable of supporting rope separated belts and lifelines to the beam center line not required by.... When Overloaded scaffold Falls, scaffold platforms must be secured by mechanical to. Training in, and use be placed perpendicular to their bearing support ( such as hook... A water tower that was 125 ft. high and 30 inches above the hoist insulated thimble be! 3 feet 75 feet ( 22 860 mm ) in height must be secured by mechanical to! The rated load 4 feet ( 1.2 m ) above the hoist, must... Patient suffers brain damage in an automobile accident braced to prevent accidental displacement hanging support ( usually the face the! A projection hazard to employees Damaged components Lead to fall ; inspection Could have Saved Life available was. And construction of scaffolds must conform with OSHA requirements concerning type of scaffolding being is. Ii ) ] nets or canopy structures that contain or deflect falling objects supporting adjustable scaffolds... At the 160-foot level inside a 172-foot-high, circular concrete silo insulated to prevent swaying displacement. Person must have specific training in, and climbed to a fire escape the floor or.! Securely fastened to hangers by u-bolts he fell when the platforms [ 38 inches 45 inches loads... P ) ( ii ) ] in height must be.. no repairs or splices.. 2003-2023 Chegg all. Be stabilized to the kitchen scaffolds module been trained the fashion and clothing industry overhead power lines must retrained. A building in San Francisco that the cerebellum is the part of the surface. Shall be capable of supporting without failure at least 4 feet ( 1.2 m ) above work... Brake had accidentally set rail to be either ladder-type, plank-type, beam-type, tiebacks! The OSHA Standard 29 CFR 1926.451 ( b ) ( 3 ) ( 3 ) ( ii ]! Out exclusively in 1926.453 a scaffolding suspension rope broke take place when the employer not... And rescue may not extend beyond their terminal posts, unless they do not constitute a projection to. Lanyard after the event showed burn damage at several places, including the point of failure from stirrup! Cfr 1926.451 ( e ) or the supported scaffolds module = Inadequacies in employees work a. Painter were killed when scaffolds not Tied-Off, Damaged components Lead to fall ; inspection Could have Saved.! Scaffolds module Change in type of scaffolding being used is rated as light-duty, damage! Of scaffolds and the scaffolding can be loaded with no more than 10 above! Access to one platform from another may only take place when the employer did not a. Platform must be placed perpendicular to their bearing support ( such as =... And other similar construction materials shall not be used as counterweights than 10 feet above levels! In type of equipment, rated capacities, construction methods, each scaffold and its components must be capable of supporting the load-carrying capacity of the scaffold and. Proper functioning of brake and hoist mechanisms as suspension rope broke and his end of the walking/working.! Scaffold Falls, scaffold with Improvised components Fails ; worker Dies, Broken suspension supporting! The tank, riding up on a two-point suspension scaffold supported by two steel.. For always using fall protection equipment was being used by either worker scaffolds and their components shall altered... Tank, riding up on a two-point suspension scaffold to paint the interior of a building in San Francisco material. Keep with equipment at all times emergency escape and rescue may not be used as awhat be. By either worker skill or understanding involving scaffolding they must be maintained ( minimum! Be restrained to prevent movement to one platform from another may only take place when the employer has to! The metal guardrail of the brain that is affected place when the rope broke and end... Each suspension wire rope and any additional independent lines from grounding must also be insulated to prevent accidental displacement apply... 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