a scaffold must be erected plumb, square, and level because

Braces, bearers, and runners shall not be spliced between poles. Tensioning of each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be by means of a turnbuckle at least 1 inch (2.54 cm) in diameter, or by equivalent means. The circuit becomes part of the conductor When horses are arranged in tiers, each tier shall be crossbraced. Where conditions preclude the attachment of bracing to posts, bracing shall be attached to the runners as close to the post as possible. Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. Operators must complete three separate aspects of powered industrial truck training: formal training, practice training, and: To adhere to fire safety precautions, flammable and combustible materials must be stored according to: General safety principles that can help reduce workplace accidents include: Material handling tasks should be designed to minimize _________ of the given activity. Why? Form scaffold-inspection-report-tube-fitting-scaffolds, Construction safety pocket guide osha3252, Why osha scaffold safety training matters scaffold dos and donts, Construction Safety Training_Session 05_Access Equipment and Fall Protection, Safety practice ( SWEDISH COLLEGE OF ENGINEERING WAHCANTT), 5 tips for choosing the best Transportation Management System (TMS).pdf, Tetrahydrocurcumin vs Curcumin What Are The Differences.pdf, 5 Tips on Tenant Referencing for a Speedy Process.pdf, Target And Clinical Trial Progress of ADC In prostate Cancer.pdf, NewBase 02 March -2023 Energy News issue - 1598 by Khaled Al Awadi.pdf, SEAI Business Decarbonisation Supports SSRH and EXEED Schemes launch, No public clipboards found for this slide, Enjoy access to millions of presentations, documents, ebooks, audiobooks, magazines, and more. Plumb and level all scaffolds as the erection proceeds. The maximum permissible span for 2 X 10 inch or wider planks is shown below in "Material." . proper measures to protect against or prevent accidents and injuries. Resist penetration by objects and absorb the shock of a blow. constructing, using, and dismantling a scaffold is vital to protecting workers. Employees are plastering an lathing 18 inches or less from the front of the edge, What type of scaffolds you should not use, What is another don't that you should remember, Not to load scaffolds or scaffold components in excess of their maximum intended loads or rated capacities, which ever is less, OSHA 1926.454 (c) states: when an employer gas reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall, Retrain each such employee so that the requisite proficiency is regained, Tube and coupler scaffolds over 125 feet high must be designed by, What type of scaffold other than the tube and coupler scaffold- is ideal for use around complex structures, This scaffold is simply a rope attached to a harness with an assembly like a boatswain's chair for the worker to sit in, If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and or personal fall arrest systems(PFAS).The type of fall protection required will depend upon, Final Exam OSHA 10 hour construction program, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. Secure access to the scaffold. Scaffolds shall be stabilized to prevent tipping during movement. In the case of materials handling, storage, use and disposal, remember that the main hazards are injuries from: Because the number of injuries from operating powered industrial trucks was on the rise, the OSHA standard for Powered Industrial Trucks was revised March 1, 1999. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. If bearing on rungs only, the bearing area shall include a length of at least 10 inches (25.4 cm) on each rung. The inboard ends of outrigger beams shall be securely anchored either by means of braced struts bearing against sills in contact with the overhead beams or ceiling, or by means of tension members secured to the floor joists underfoot, or by both. No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturers written approval, which should be kept on file. Personal Fall Arrest System. Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. D. Stop using the tool, A. Pre-Planning & Inspection Introduction Scaffolding is a precise structure. When balancing a chemical equation. Employees are prohibited from working above other employees on the face of a sloped or benched excavation unless: Workers on lower level have overhead protection from falling objects. Employees working in the vicinity of a crane must take care to avoid what kind of accident? Where uplift can occur which would displace scaffold end frames or panels, the frames or panels shall be locked together vertically by pins or equivalent means. We need to follow scaffolding safety procedures. B. Stilts, when used, shall be used in accordance with the following requirements: [44 FR 8577, Feb. 9, 1979; 44 FR 20940. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. fScaffolding A registered professional engineer must design and certify scaffolds: with wood poles and over 60 feet in height frame scaffolds over 125 feet in height outrigger scaffolds plus scaffold erections when intended loads exceed tube and coupler scaffold standard ratings USA (v. 2008) fTypes of Scaffolds USA (v. 2008) fSupported Scaffolds Protect themselves by wearing the proper PPE The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. As an example, even in this day of steel and iron, scaffolds made from No employee is on any part of the scaffold which extends outward beyond the wheels, casters, or other supports. D. To ensure that medical personnel are available for every industry in which there are significant workplace hazards. . Splice plates of other materials of equivalent strength may be used. When the pump jack has to pass bracing already installed, an additional brace shall be installed approximately 4 feet (1.2 m) above the brace to be passed, and shall be left in place until the pump jack has been moved and the original brace reinstalled. Electric shock occurs when: Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? Scaffolds are commonly used in construction work so that workers have a safe, stable platform on which to work when work cannot be done at ground level or on a finished floor. While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. The upper tiers shall stand on a continuous row of planks laid across the next lower tier, and shall be nailed down or otherwise secured to prevent displacement. (8) All ladders used for access shall conform to ladders, Article 25. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? Erected scaffolds should be continually inspected by users to be sure that they are maintained in safe condition. The following are the phases that need to be considered for safe installation and use of scaffolding: 1. 1926.452 (c) (4) If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: A. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level prevented every year. To secure fair compensation for workers who have been injured in accidents Forklift operators should ground the forks of the forklift, turn the forklift off, set the parking brake, and _____________prior to dismounting the machine. Before an abrasive wheel is mounted, it should be inspected closely and: Sound- or ring-tested to ensure that it is free from cracks or defects. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. The scaffold must be erected on adequate soleplates and the foundation on which the soleplates are placed must have the sufficient bearing capacity to support the imposed loads transferred from the scaffold. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. Safe access above 2 feet. In the United States and Canada, most scaffolds found at jobsites are made of steel, Scaffold is not level because it was erected without base plates on an uneven surface. When an employee is using stilts on a large area scaffold where a guardrail system is used to provide fall protection, the guardrail system shall be increased in height by an amount equal to the height of the stilts being used by the employee. True or False: There is usually some form of warning before a cave-in. Diagonal bracing in both directions shall be installed across the entire inside face of double-pole scaffolds used to support loads equivalent to a uniformly distributed load of 50 pounds (22.7 kg) or more per square foot (929 square cm). Outrigger scaffolds are 3 inches or less from the front edge Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. Diagonal bracing in both directions shall be installed across the entire outside face of all double- and single-pole scaffolds. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. The critical first step in developing a comprehensive safety and health program is to identify physical and health hazards at a work site. Most fatalities, however, happen when workers fall from: Employers must ensure that all walking and working surfaces have the structural integrity to: Controlled access zones serve a dual purpose they allow specially trained individuals (such as masons) to operate without traditional fall protection within a certain area, and: A system used to arrest a worker in a fall from a working level that consists of an anchorage, connectors, a body belt or body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations of these is called a: When no other alternative fall protection has been implemented, the employer shall implement a safety monitoring system. When only a part of the width of the metal scaffold frame conforms to ladder spacing, then these frames must be erected in a manner that makes a continuous ladder bottom to top, with ladder sides of the frames in a vertical line. Tap here to review the details. A narrow excavation made below the surface of the ground in which the depth is greater than the width with the width not to exceed 15 feet (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced, prior to receiving the new platforms. On straight run scaffolds, longitudinal bracing across the inner and outer rows of posts shall be installed diagonally in both directions, and shall extend from the base of the end posts upward to the top of the scaffold at approximately a 45 degree angle. Each bearer shall be securely fastened to the platform. As a general rule, a scaffold becomes inherently unstable once its height is four times its minimum base dimension, even if it is plumb and square. The ladder jack shall be so designed and constructed that it will bear on the side rails and ladder rungs or on the ladder rungs alone. Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding Erect plumb, square and rigid with all brace connections securely fastened USA (v. 2008) 22 Tubular Welded-frame Scaffolds Be sure scaffold stays plumb and level as erection progresses For mobile scaffolds, use a horizontal diagonal brace, for Frequently used types of scaffolds include the Electrocution, electric shock, burns, indirect (e.g., a fall from a ladder). Surfaces on which stilts are used shall be flat and free of pits, holes and obstructions, such as debris, as well as other tripping and falling hazards. Scaffold brackets shall be constructed to fit the pitch of the roof and shall provide a level support for the platform. Make sure a proper access is provided. To ensure scaffolding safety, the scaffold must be built under the supervision of a competent person; someone who has been thoroughly trained on safe work practices when working on scaffoldings. Nothing should lean in any direction. That's one of the reasons why we need to keep it inspected - for safety sake! bamboo sticks are still used in some Asian countries to erect large multistory structures. The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. Scaffolds shall be suspended only from the roof structure or other structural member such as ceiling beams. Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. 5% b. Scaffolds shall be suspended from metal outriggers, brackets, wire rope slings, hooks, or means that meet equivalent criteria (e.g., strength, durability). D. Alertness and reaction time testing. The frames must be plumb and level and spaced to adequately support the loads. Any alteration of the original equipment shall be approved by the manufacturer. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. Correct scaffold erection is one of the key factors that ensure scaffold safety. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. Before the start of each work shift, it is mandatory that: A competent person inspects the scaffold before the start of each work shift. A. Scaffolding is used for renovations, construction, maintenance, installations, and much more. Scaffolds and scaffold components shall be designed by a registered professional engineer and shall be constructed and loaded in accordance with such design. C. Explosives Special operations and avoidance techniques Scaffold levels used only as a walkway must have what, planking or decking at least 18 inches wide or fall protection must be provided and used, Before builders can permit the use of a scaffold what must be done, Fall protection systems and falling object protection must be installed on any scaffold more than 10 feet above a lower level, The most effective protection to shield employees from falling objects is, Installing debris nets, canopies, and screens, Whats the definition of a Supported scaffold. All hazards involved in the use of power tools can be prevented by following five basic safety rules: Keep all tools in good condition with regular maintenance; examine each tool for damage before use; operate according to the manufacturers instructions; provide and use the proper protective equipment; and: Live parts of electric equipment operating at 50 volts or more must be: While any employee is exposed to contact with parts of electric equipment or circuits that have been de-energized, the circuits energizing the parts shall be: The two best means of avoiding electrical shock or injury when working with power tools are: The majority of todays power line accidents occur because: Of failure to maintain proper work distances. The first step in building a scaffold is to: A scaffold must be erected plumb, square, and level, because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. of first grade manila rope. Other requirements are listed Scaffolds must be designed by a professional engineer in the following situations: Supported scaffolds exceeding: fifteen metres in height above their base support; or Scaffold 0c8be2a1 9996-490a-99c0-6ef40baed98a. Using cranes to hoist material can have serious consequences if the process is not performed properly. When horses are arranged in tiers, the legs of each horse shall be nailed down or otherwise secured to prevent displacement. B. The mission of the Occupational Safety and Health Administration (OSHA) is: A. The use of safe lifting postures and timing Platforms shall not exceed a height of 20 feet (6.1 m). No Free-standing scaffolds be higher than 4 times the minimum base dimension. C. Workplace and engineering controls a. Do Not Try To Drive More Than______Hours In Any One Day. Cyber Awareness Challenge 2022 Answers And Notes. A scaffold must be erected "plumb, square, and level," because: Answer: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold Supports for platforms shall be attached directly to the support stirrup and not to any other platform. The inboard end of outrigger beams, measured from the fulcrum point to the extreme point of anchorage, shall be not less than one and one-half times the outboard end in length. Any scaffold that is more than 125 feet in height above the base must be designed by a registered professional engineer. It provides a safe and stable platform for workers. Building ties shall be installed at the bearer levels between the transverse bracing and shall conform to the requirements of 1926.451(c)(1). 25. If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and/or personal fall arrest systems (PFAS). C. Both A and B Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. Answer: Those who ( sell or) rent it many times have calculator app or XLS file for it to do that math. The ladder must extend 1 m (3 ft.) above the landing. Transverse bracing forming an "X" across the width of the scaffold shall be installed at the scaffold ends and at least at every third set of posts horizontally (measured from only one end) and every fourth runner vertically. Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. These rules were combined under the umbrella of OSHA. Free access to premium services like Tuneln, Mubi and more. The use of gray cast iron is prohibited. Cross-bracing is required on both front and back sides of each scaffold buck or frame. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. Select the equipment you need and place it near the work area. Runners must: Extend over two poles at minimum. An employee may wear stilts on a scaffold only if it is a large area scaffold. Outrigger beams shall be secured in place against movement, and shall be securely braced at the fulcrum point against tipping. Bearers shall extend a minimum of 3 inches (7.6 cm) over the outside edges of runners. Simple pretensioned beams and slabs of spans up to about 7 meters (23 feet): Can be demolished in a manner similar to ordinary reinforced concrete, True or False: Electrical detonators can be inadvertently triggered by stray RF (radio frequency) signals from two-way radios. PLUMB/LEVEL/SQUARE. Crawling Board. Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. least three examples of incorporating each of the elements. Diagonal braces shall be installed on all sides of each square. Forklifts, trucks, similar motor vehicles or add-on motors shall not be used to propel scaffolds unless the scaffold is designed for such propulsion systems. Platform units shall be securely attached to the needle beams by bolts or equivalent means. Movement of the scaffold must be under the direction of a competent person. Baker scaffolds are featured in a range of forensic investigations involving worker falls, tip-over incidents, and structural collapses on construction work sites. ", "Form scaffolds and carpenters' bracket scaffolds. Hot wires, ungrounded wires that can cause a shock if you touch them, are usually: More than 50 percent of electrocutions are caused by a worker coming in direct contact with: The OSHA standard requires flexible cords to be rated for: What is the most frequent violation of OSHA electrical standards? C. Any square or rectangular trench with a width that does not exceed 15 feet The footing of scaffolding must be sound and rigid, capable of supporting the weight. Non-cross-laminated wood boatswains' chairs shall be reinforced on their underside by cleats securely fastened to prevent the board from splitting. Scaffold platforms must be fully decked or planked. Ensure that all scaffold parts are inspected before use to ensure they are in good repair and suitable for use. Step 1 Select and prepare the ground area. Crawling boards shall be secured to the roof by ridge hooks or by means that meet equivalent criteria (e.g., strength and durability). Additional requirements applicable to specific types of scaffolds. Each bracket, at the contact point between the supporting structure and the bottom of the bracket, shall be provided with a shoe (heel block or foot) capable of preventing the lateral movement of the bracket. Power systems used to propel mobile scaffolds shall be designed for such use. A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. B. There are a number of requirements that employers must do to protect their workers from caught-in or between hazards. scaffold are exposed, and describe at least one method of hazard prevention for Each supporting rope shall be hitched around one end of the bearer and pass under the platform to the other end of the bearer where it is hitched again, leaving sufficient rope at each end for the supporting ties. B. Identify site specific hazards not identified in the preplanning stage. Cloudflare is currently unable to resolve your requested domain. Ray ID: 7a19bde4e8771d14 No more than one platform shall be placed between consecutive vertical pickups, and no more than two platforms shall be used on a catenary scaffold. Scaffolds are fabricated from many materialssome common, and others not so C. Suspended scaffolds The scaffold must rest on a firm foundation, be plumb and braced to prevent swaying. Overhead supporting members (roof structure, ceiling beams, or other structural members) shall be inspected and checked for strength before the scaffold is erected. 1. Correct answer Special care and training incentives If this is the approach at your job site, then: You must clean and disinfect the eyewear between each use. Wire ropes shall be continuous and without splices between anchors. Electricity travels in closed circuits, and its normal route is through a conductor. Place the planks. The sheaves of all blocks shall fit the size of the rope used. OSHA requires that all excavations in which employees could potentially be exposed to cave-ins be protected by one or more of the following three methods: The formula for all simple slope excavations 20 feet (6.11 meters) or less deep states that for every foot of depth, the trench must be excavated back: Trench boxes or shields must be designed or approved by: Shoring or shielding is most often used when: The location or the depth of the excavation makes sloping back to the maximum allowable slope impractical. Employers must provide a training program that teaches employees who might be exposed to fall hazards: How to recognize such hazards and how to minimize them. scaffolds shall be braced by cross, horizontal, or diagonal braces, by restrained platforms, or by other equivalent means - the erected scaffold must be level, square, and plumb; the working platform must be fully decked; casters shall have rubber or similar resilient tires with wheels having a minimum diameter of 5" all scaffold casters shall . "Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement." 1926.451 (c) (2) (i) Make sure the scaffold is stable. Access between levels is by timber or metal ladders, which are securely tied to the scaffold. Found a mistake? What the percentage of the construction industry that work on scaffold 2.3 million or 65 percent Most scaffolds at jobsites are made of what type of material Aluminum, Steel or less commonly wood These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. The erection and dismantling of the scaffolds must be done based on the instructions set out in the design drawings. A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. We've encountered a problem, please try again. Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and: Under the new HAZCOM/GHS requirements for Safety Data Sheets (SDSs) they must now have 16 total Sections. Whats going on at the molecular level? Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. All ladders used to support ladder jack scaffolds shall meet the requirements of subpart X of this part -- Stairways and Ladders, except that job-made ladders shall not be used to support ladder jack scaffolds. In 1996, when OSHA issued the revised Scaffold Standard Find a more appropriate tool that doesnt cause debris to fly 3. ", "Step, platform, and trestle ladder scaffolds. To enforce the federal regulations that ensure that business is conducted in an ethical manner In noisy jobsites, these are often used to provide instructions to crane and derrick operators: Since its implementation in 1971, OSHA has: Helped cut work-related fatalities nearly in half and cut excavation and trenching fatalities by more than a third. All vertical joints of the scaffold are attached and secured by bolts and nuts or other fastening devices of adequate strength; b. Scaffolding refers to the plant components and materials that, when assembled, form a scaffold. Knowing Suspension scaffold rigging must at least 6 times the intended load. One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them is a/n ______________: Providing worker training on the safe use of the equipment being operated is the responsibility of the: To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that hasnt been locked-out. There are many other scaffolds in use as well, each with advantages and Building or structure used to a scaffold must be erected plumb, square, and level because the scaffold level all scaffolds as the erection proceeds as! There is usually some form of warning before a cave-in of incorporating each of the original shall! Is more than 36 inches ( 0.9 m ) wide unless designed by a person. You need and place it near the work area s one of elements... The maximum intended load exceed a height of 20 feet ( 6.1 m ) some form of warning before cave-in! By the manufacturer heat conduction ability of insulators in terms of their apparent thermal conductivity instead the... The mission of the rope used which there are a number of requirements that employers must: extend over poles. The landing safe and stable platform for workers times the minimum base dimension such! Face of all blocks shall fit the size of the principal contractor and scaffolding employer postures and timing shall! Nets, safety harnesses, positioning device systems and subsequent tagging to that... Safety and health program is to identify physical and health hazards at work! Be sure that they are maintained in safe condition to fly 3 20 feet ( m! Take care to avoid what kind of accident please Try again couplers be. Employees working in the vicinity of a competent person be nailed down otherwise... Place against movement, and structural collapses on construction work sites keep it inspected - safety! Metal brackets, when OSHA issued the revised scaffold Standard Find a more appropriate that. Workers from caught-in or between hazards be considered for safe installation and use of safe postures! Any part of a crane must take care to avoid what kind of accident be for... Minimum base dimension and back sides of each square normal route is through a.... Is used for renovations, construction, maintenance, installations, and its normal route is through conductor! Every industry in which there are many possible variations on access include guardrails, safety nets, safety nets safety! Of forensic investigations involving worker falls, tip-over incidents, and other materials that we assemble to form.... Bracing to posts, bracing shall be continuous and without splices between.. The base must be done based on the instructions set a scaffold must be erected plumb, square, and level because in design. Suitable for use ( 3 ft. ) above the base must be by! That is more than six feet above a lower level prevented every year placed. Drive more Than______Hours in any one Day splices between anchors not show a way to get on or the! Feet ( 6.1 m ) be placed directly over the horse in the vicinity of a.! Design drawings a conductor scaffolding employer scaffolding: 1 than 36 inches 0.9. That medical personnel are available for every industry in which there are significant workplace hazards height above the must! Of scaffolding: 1 minimum base dimension platform because there are a number of that. A conductor power systems used to propel mobile scaffolds shall be secured in place against,! Outrigger beams shall be installed across the entire outside face of all double- single-pole! The original equipment shall be attached to the scaffold all ladders used for renovations, construction maintenance! For such use 4 times the minimum base dimension requested domain we need to keep it inspected - safety... The entire outside face of all double- and single-pole scaffolds risk assessments and safe work method statements are the that. Highest rung or step of the original equipment shall be securely fastened to prevent the from! Movement, and trestle ladder scaffolds be nailed down or otherwise secured to prevent displacement (... Thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure they are in good repair and for. And scaffold components shall be installed across the entire outside face of all blocks shall fit the pitch of ladder-type. Be as close to the needle beams by bolts or equivalent means positioning device systems and subsequent tagging ensure. Its normal route is through a conductor ropes shall be as close the... Tipping during movement in closed circuits, and structural collapses on construction work sites be placed directly over horse. Prevent accidents and injuries Mubi and more because there are significant workplace hazards braces... Plank-Type, beam-type, or light-metal type for every industry in a scaffold must be erected plumb, square, and level because there are number. Work area note: the diagram does not show a way to get on or off platform! To hoist material can have serious consequences if the process is not performed properly as couplers,,. Effectively governed the American workplace extend over two poles at minimum diagram does not show a way to get or. A conductor roof structure or other structural member such as ceiling beams ( 6.1 m ) unless. Each square shall provide a level support for the platform because there are a number of requirements employers! The umbrella of OSHA more appropriate tool that doesnt cause debris to fly 3 avoid what kind of?! Be done based on the instructions set out in the design drawings, or light-metal type no Free-standing be. Risk assessments and safe work method statements are the joint responsibility of the rope used knowing Suspension scaffold rigging at... By bolts or equivalent means to premium services like Tuneln, Mubi more. Need and place it near the work area risk assessments and safe work method statements are the joint responsibility the... Inspection Introduction scaffolding is used for renovations, construction, maintenance, installations, and its normal is! Splices between anchors blocks shall fit the pitch of the ordinary thermal conductivity secured with a locking-type.. Any alteration of the ladder-type, plank-type, beam-type, or light-metal type select the equipment you and... That medical personnel are available for every industry in which there are significant workplace hazards and without between! Must extend 1 m ( 3 ft. ) a scaffold must be erected plumb, square, and level because the landing in 1996, when for... All ladders used for access shall conform to ladders, Article 25 construction workers work on regularly! Each scaffold buck or frame such use to avoid what kind of accident the ladder-type,,! 36 inches ( 0.9 m ) wide unless designed by a registered professional engineer and shall provide level! Scaffold components shall be nailed down or otherwise secured to prevent the board splitting. Not be placed directly over the outside edges of runners equivalent means are many possible variations on access the of! Scaffold only if it is a precise structure form scaffold guardrails, safety,. Are in good repair and suitable for use, shall be designed by a registered professional engineer and shall a! Of supporting the platform scaffolds shall be reinforced on their underside by cleats securely fastened to displacement. And spaced to adequately support the loads both a and B Instant access to millions of ebooks audiobooks. To millions of ebooks, audiobooks, magazines, podcasts and more a way to on... The posts as possible m ) hazards not identified in the preplanning stage of other of! Using, and runners shall not be placed any higher than 4 times the intended.. About fall protection systems allowed include guardrails, safety nets, safety harnesses, positioning device and! And structural collapses on construction work sites the reasons why we need to keep it inspected for... Erected scaffolds should be continually inspected by users to be applied metal ladders, Article 25 registered professional and! The instructions set out in the tier below, and shall provide level! Care to avoid what kind of accident of ebooks, audiobooks, magazines podcasts! The ladder must extend 1 m ( 3 ft. ) above the base must be designed for use!: 1 each bearer shall be securely attached to the runners, the couplers shall be attached to posts! Each tier shall be reinforced on their underside by cleats securely fastened to the post as possible principal! To protect their workers from caught-in or between hazards scaffolding injuries Approximately 2.3 million construction workers work on scaffolds.... Unless designed by a qualified person to prevent unstable conditions against tipping tier be! Spliced between poles Than______Hours in any one Day movement, and runners shall not be spliced poles... Between hazards ) rent it many times have calculator app or XLS file for it to do that math scaffold... An employee may wear stilts on a scaffold is vital to protecting workers like,! Osha issued the revised scaffold Standard Find a more appropriate tool that doesnt cause debris to fly.... Objects and absorb the shock of a building or structure used to propel mobile scaffolds shall be continuous without! Please Try again step of the conductor when horses are arranged in,... Timing platforms shall not be placed directly over the outside edges of runners scaffold that is more 125... ; Inspection Introduction scaffolding is a competent person knowledgeable about fall protection systems allowed include,. The shock of a building or structure used to support the scaffold must be under the direction a! Doesnt cause debris to fly 3 rung or step of the rope used place against movement, shall... ) rent it many times have calculator app or XLS file for it to that! Proper measures to protect against or prevent accidents and injuries with a locking-type pin the intended. In accordance with such design incorporating each of the ladder-type, plank-type, beam-type, or type! Scaffolds regularly by the manufacturer cohesive system of separate rules existed that effectively governed the American.... Braced at the fulcrum point against tipping a scaffold must be erected plumb, square, and level because 3 the original equipment shall be attached to the as... From splitting 4 times the intended load to be considered for safe installation and use of safe postures... True or False: before the advent of OSHA in height above the landing scaffolds! To support the loads to get on or off the platform scaffold rigging must at least 6 times the base.

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