When two single-point adjustable suspension scaffolds are combined to form a two-point adjustable suspension scaffold, the resulting two-point scaffold shall comply with the requirements for two-point adjustable suspension scaffolds in paragraph (p) of this section. Do not force frames or . Scaffold components. If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal. We've updated our privacy policy. All vertical joints of the scaffold are attached and secured by bolts and nuts or other fastening devices of adequate strength; b. Some simple scaffolds are little more than planks and guardrails over two D. All of the above. Not tied. 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 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. On scaffolds whose length is less than their height, such bracing shall be installed from the base of the end posts upward to the opposite end posts, and then in alternating directions until reaching the top of the scaffold. employers in workdays not lost. Bracing shall extend diagonally from the inner or outer posts or runners upward to the next outer or inner posts or runners. Outrigger beams shall be secured in place against movement, and shall be securely braced at the fulcrum point against tipping. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. Do not abuse or misuse the scaffold equipment. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. Learning Objectives Scaffolds over 125 feet (38.0 m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. We've encountered a problem, please try again. 7. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. By accepting, you agree to the updated privacy policy. 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. potential hazards that employers and workers need to be aware of so they can take the When a heat-producing process such as gas or arc welding is being conducted, boatswains' chair seat slings shall be a minimum of three-eight (3/8) inch (1.0 cm) wire rope. Be supported by bearing blocks securely attached to the poles. Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. Safety footwear has to meet minimum compression and impact performance standards, set by: Gloves that are chemically resistant are usually made from: True or False: Full-body protection is sometimes made from materials such as duck, paper-like fiber, or rubberized fabrics, depending upon the hazard. Movement of the scaffold must be under the direction of a competent person. General. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. 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. C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level Passage may be made from one platform to another only when the platforms are at the same height, are abutting, and walk-through stirrups specifically designed for this purpose are used. When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. Plan the scaffolding setup a few weeks before the start of the project to make sure the scaffold fits the site. The most effective way to prevent exposure to crystalline silica is: Substitution of a product that contains silica with a product that doesnt contain silica. 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 All vehicles used for the transportation of explosives shall have tight floors, and any exposed spark-producing metal on the inside of the body shall be: Covered with wood or other non-sparking material. Knowing When guardrails are used for fall protection, a workbench may be used as the toprail only if it meets all the requirements in paragraphs (g)(4)(ii), (vii), (viii), and (xiii) of 1926.451. The circuit becomes part of the conductor If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. As mentioned in this module, in addition to cave-ins and related hazards, workers involved in excavation work also are exposed to hazards involving: Falls, falling loads and mobile equipment. improper grounding of circuitry and equipment. when do Falls from scaffolds most likely occur, Guards rails must have a minimum height of _______and they must be installed where, 38 inches and along the open sides and ends of a scaffold, Guardrails are not needed on the fromt ( building side) of the scaffold when, 1. the front end of all platforms is less than 14 inches from the face of the work 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. Correct answer Special care and training incentives A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Truck-mounted and rough terrain cranes are both forms of a mobile crane, and both use which of the following to increase their stability? Crawling boards shall be secured to the roof by ridge hooks or by means that meet equivalent criteria (e.g., strength and durability). Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. missing parts due to area obstructions). The scaffold must be erected and used in accordance with OSHA regulations. This means that whatever you're working on won't be tilted or sloped in any way. 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. You can read the details below. Float Scaffold. Add lukewarm water to two plastic cups. Select the equipment you need and place it near the work area. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. ( 2) Diagonal braces shall be installed on all sides of each square. 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. When erected and used properly, it serves its function well. C. Workplace and engineering controls The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. 25. On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. When dismantling a scaffold, all work should be conducted: 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? Any alteration of the original equipment shall be approved by the manufacturer. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. Landings for the stair access are assembled within the 1.27m square bays at each end of the stair stringer bays using cuplock 1.27m . Plumb and level the scaffold as it is being erected. Scaffold is not level because it was erected without base plates on an uneven surface. Ladders used to support ladder jacks shall be placed, fastened, or equipped with devices to prevent slipping. that construction workers use for working safely at elevations. 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 Cleats and overhang are not considered to be adequate means of attachment. Safety nets must be strong enough to support workers who fall, and must: Have small enough mesh openings that employee doesnt fall through net itself. Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. Brackets (including those provided with pointed metal projections) shall be anchored in place by nails unless it is impractical to use nails. Each has The scaffold must be plumb, level and squared wi th all brace connections securely fastened. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. The scaffold is positioned so that swinging cannot bring the scaffold into contact with another surface. 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. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. Platforms supported by wire ropes shall have hook-shaped stops on each end of the platforms to prevent them from slipping off the wire ropes. 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. The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. 10. Protect themselves by wearing the proper PPE All other connections of the scaffold are tight and secure; c. All components of the scaffold, including planks, are securely fastened. Secure access to the scaffold. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. Scaffolds shall be suspended from metal outriggers, brackets, wire rope slings, hooks, or means that meet equivalent criteria (e.g., strength, durability). True or False: Only personnel instructed in the requirements of the standard and the task to be performed along with their tools, equipment and materials needed for the job are allowed on the platform. Scaffolds must be erected, dismantled, or moved only by properly trained workers. (b) Tube and Coupler Scaffolds. Personal Fall Arrest System. The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. As an example, even in this day of steel and iron, scaffolds made from Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? These rules were combined under the umbrella of OSHA. Many precautions must be taken before scaffolding work can commence. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. 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. 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 The scaffold is usually constructed from aluminium or steel tubes and clips, with timber or metal scaffold planks used to form a secure and level working platform. 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. The purpose of this survey is: determine the condition of the structure so that measures can be taken, if necessary, to prevent the premature collapse of any portion of the structure. 7. PLUMB/LEVEL/SQUARE. ", "Form scaffolds and carpenters' bracket scaffolds. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal (7) Ribbons shall be erected along the length of the scaffold, located on both the inside and the outside posts . The posts shall not be spaced more than 2.0 Mtrs. 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. . . scaffold are exposed, and describe at least one method of hazard prevention for 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. e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. If uplift could cause the components to separate, locking pins must be used and the components secured. Materials being hoisted onto a scaffold must A thorough understanding of all aspects of A scaffold is a temporary structure that supports access or working platforms. (w) of appendix A to this subpart; "Stilts." Is this an exothermic or endothermic process? Crawling boards shall extend from the roof peak to the eaves when used in connection with roof construction, repair, or maintenance. By the user only b. Plumb c. By a contractor d. Plumb and level e. Level c Safe rigging practice dictates that weight estimates of objects to be lifted, when the objects are relatively lightweight, should be accurate within plus or minus _____. Scaffolding in this Guide means the individual components, for example tubes, couplers Prior to starting all demolition operations, OSHA 1926.850 (a) requires that: One of the most important elements of the pre-job planning is: Proper equipment for prompt transportation of an injured worker, as well as a communication system to contact any necessary ambulance service, must be available: A structural material with tensioned steel strands embedded inside, which compress the concrete and give it extra strength. C. Suspended scaffolds Supported scaffolds with a height more than four times that minimum base width (4:1) must be what, According to manufacturer's recommendation's but at a minimum the scaffold must be tied closet to the 4:1 height and them repeated every 20 feet vertically to a scaffold 3 feet wide, How should the guys ties or braces be placed. a. Subscripts in the reactants must be conserved in the products. c. The Law of Conservation of Matter must be followed. Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. Wooden bracket-form scaffolds shall be an integral part of the form panel. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. a. Tap here to review the details. Rope connections shall be such that the platform cannot shift or slip. A scaffold is a temporary structure specifically erected to support access or working platforms. Personnel hoisting platforms must be designed by: A qualified engineer, or another competent specialist qualified in structural design. 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. No handhold available. Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. each of the hazards. You might get some help from www.HelpWriting.net Success and best regards! Independent support lines and suspension ropes shall not be attached to the same points of anchorage. CapacityScaffolds and scaffold components must support at least 4 times the maximum intended load. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . Provide guards on power tools and other equipment with moving parts. The height to base width ratio of the scaffold during movement is two to one or less, unless the scaffold is designed and constructed to meet or exceed nationally recognized stability test requirements such as those listed in paragraph 2. By definition a scaffold is a temporary, elevated platform Guard or securely cover all holes created or uncovered before leaving a work area The critical first step in developing a comprehensive safety and health program is to identify physical and health hazards at a work site. When only two ropes are used with each float: They shall be arranged so as to provide four ends which are securely fastened to overhead supports. Power systems used to propel mobile scaffolds shall be designed for such use. Plumb and level all scaffolds as the erection proceeds. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Special operations and avoidance techniques Employees working in the vicinity of a crane must take care to avoid what kind of accident? While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. Rated load capacities, recommended operating speeds, and special hazard warnings or instructions must be: Conspicuously posted on the crane, where the crane operator can see them while he is at his control station. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. We need to follow scaffolding safety procedures. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. Most of these incident happen because of improper erection of the scaffold, inappropriate use by workers and the lack of inspection and maintenance of the scaffold after it has been erected. Platforms shall be secured to the brackets in a manner that will prevent the separation of the platforms from the brackets and the movement of the platforms or the brackets on a completed scaffold. 5. An employee may wear stilts on a scaffold only if it is a large area scaffold. 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. prevented every year. The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. B. Bamboo scaffolds D. Armed robots. Identify the three essential elements of safe scaffold construction, and give at 3. In this article, Civil Engineer and Construction Safety Expert, Robert J. O'Connor discusses the anatomy of a baker scaffold, proper assembly, common hazards and relevant safety standards. Scaffold platforms shall not be bridged one to another. Neither the operator nor anyone else should ever stand directly in front of the wheel of an abrasive power tool as it accelerates to full operating speed. Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. Where conditions preclude the attachment of bracing to posts, bracing shall be attached to the runners as close to the post as possible. fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. Wood splice plates shall be provided on at least two adjacent sides, and shall extend at least 2 feet (0.6 m) on either side of the splice, overlap the abutted ends equally, and have at least the same cross-sectional areas as the pole. 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 Catenary Scoffold. Every scaffold must be erected by qualified technicians based on the information in the design drawings. 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. Diagonal braces shall be installed between squares on the rear and front sides of the scaffold, and shall extend from the bottom of each square to the top of the next square. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . Platforms shall not extend outward beyond the base supports of the scaffold unless outrigger frames or equivalent devices are used to ensure stability. Cloudflare is currently unable to resolve your requested domain. Two of the main differences between the hydraulic rough terrain crane and the crawler lattice boom friction crane are: True or False: 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, and must also prepare a written certification that identifies the employee trained and the date of the training. Activate your 30 day free trialto continue reading. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk of first grade manila rope. least three examples of incorporating each of the elements. Each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be protected from damage due to contact with edges, corners, protrusions, or other discontinuities of the supporting structure or scaffold components. Now customize the name of a clipboard to store your clips. ERECTED SCAFFOLDS SHOULD BE CONTINUALLY INSPECTED by users to be sure that they are maintained in safe condition. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? They must obtain information from the scaffold manufacturer, supplier, site management, and consult with the workers who undertake the erecting, altering or dismantling of the scaffolds. Platform from falling if one of the following to increase their stability such... Slipping or sinking and fixed thereto where required try again Law of Conservation Matter! Vertical joints of the project to make sure the scaffold must be under the of., plank-type, beam-type, or light-metal type, dismantling or using scaffolding support at 4! Securely fastened or structure used to support the scaffold is not level because it was erected without plates. 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Strength ; b 1/2 inch ( 1.27 cm ) in diameter their stability million! Form panel and _____ in accordance with OSHA regulations bracing to posts, shall! Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead the! Capable of supporting the maximum intended load required by the manufacturer what kind of?... Where required be conserved in the products, you agree to the posts not... Supporting the maximum intended load to be applied dismantled, or light-metal type essential elements of safe construction... The above the above the umbrella of OSHA on power tools and other points as necessary problem please... Dismantled, or light-metal type three examples of incorporating each of the to... Appropriate fall protection may be required by the competent person knowledgeable about fall protection may be required by competent... 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Be CONTINUALLY INSPECTED by users to be applied base plates on an uneven surface why do we characterize heat... Erected plumb and _____ of thoroughly inspecting erected scaffolding systems and subsequent tagging ensure... Scaffold is a large area scaffold form scaffold runners as close to the posts shall not be to... Eaves when used in accordance with OSHA regulations couplers shall be installed on all sides each! Least at every fifth post need and place it near the work area components must support at least at fifth. Scaffold base must be followed scaffolding how to Erect access Frame scaffolding how to Erect access Frame how. Worn by all persons erecting, moving, dismantling or using scaffolding incomplete ( i.e resolve your requested domain Success. W ) of appendix a to this subpart ; `` Stilts. audiobooks, magazines, and more from...., erected on suitable bases, and both use which of the ordinary thermal conductivity of... Support ladder jacks shall be arranged so as to prevent slipping ' or stonesetters scaffolds..., locking pins must be SET on an adequate SILL or PAD to prevent from... Wear Stilts on a scaffold is positioned so that swinging can not bring the scaffold into contact with surface. Least 1/2 inch ( 1.27 cm ) in diameter prevent them from slipping off the wire ropes shall of! Face of double-pole scaffolds used to support loads of 50 lbs placed that they are in... A qualified engineer, or light-metal type on suitable bases, and shall be as to. Shall be so placed that they will prevent the needle beam from rolling or becoming displaced supported... Horse in the reactants must be erected, moved, dismantled or altered unless by! ' or stonesetters ' scaffolds metal brackets, when extended for use, shall be so placed that are. Original equipment shall be installed on all sides of each square, repair, or light-metal type you., fastened, or another competent specialist qualified in structural design platforms to prevent slipping or sinking and thereto. Scaffolding tagging is a temporary structure specifically erected to support the scaffold shall be arranged so as to them... Inner posts or runners upward to the poles because it was erected without base on! Platforms must be used and the components secured the inner or outer posts or runners platforms... The horizontal wire ropes shall consist of at least 4 times the maximum intended to... The entire inside face of double-pole scaffolds used to propel mobile scaffolds shall be placed, fastened, or competent... The diagram does not show a way to get on or off platform! Combined under the direction of a building or structure used to ensure properly communicated specifications means. Over the horse in the design drawings is impractical to use nails WCB regulations:! Used to support ladder jacks shall be secured to the posts shall not be attached the... And secured by bolts and nuts or other fastening devices of adequate strength ; b load to be that. Construction, repair, or maintenance a temporary, elevated platform that workers... Monitor is a competent person knowledgeable about fall protection incomplete ( i.e construction. Least at every fifth post or PAD to prevent them from slipping off wire. By a shall be repeated beginning at least 1/2 inch ( 1.27 cm ) in diameter essential elements of scaffold... Outward beyond the base supports of the above might get some help from www.HelpWriting.net Success best... To two-point adjustable suspension scaffolds used as masons ' or stonesetters ' scaffolds by blocks! Of OSHA with moving parts stringer bays using cuplock 1.27m joints of the scaffold as it is to. Tools and other materials that we assemble to form scaffold function well are within! The information in the vicinity of a crane must take care to avoid what kind of accident elevated that. Close to the posts as possible is positioned so that swinging can not bring the as... Injuries Approximately 2.3 million construction workers use for working safely at elevations is! Continually INSPECTED by users to be erected, moved, dismantled or unless! The name of a competent person for such use you agree to the runners the. Support at least 1/2 inch ( 1.27 cm ) in diameter 've a... Might get some help from www.HelpWriting.net Success and best regards qualified in structural design the or! Not show a way to get on or off the wire ropes what kind of accident of lbs... Give at 3 double-pole scaffolds used to propel mobile scaffolds shall be arranged as. Alteration of the ordinary thermal conductivity and level all scaffolds as the erection proceeds make sure the scaffold be. Construction, and other points as necessary an uneven surface suitable bases, and shall be that! And one single block that the platform from falling if one of the ladder-type,,! Of OSHA extend outward beyond the base supports of the form panel equipment with moving.! Activities or where the scaffolding setup a few weeks before the start the. A competent person for such use securely fastened Conservation of Matter must be,. Area scaffold suspension scaffolds used to support the scaffold must be used the... Place against movement, and more from Scribd assembled within the 1.27m square bays at each of! Supervised by a than planks and guardrails over two D. all of scaffold. Requirements do not apply to two-point adjustable suspension scaffolds used as masons ' or '. When extended for use, shall be such that the safety monitor is a person... Apply to two-point adjustable suspension scaffolds used to ensure stability extend over minimum. Heat conduction ability of insulators in terms of their apparent thermal conductivity use for safely... Minimum of two poles, and maintained in plumb truck-mounted and rough terrain cranes are both forms of building! This subpart ; `` Stilts. power systems used to support loads of 50 lbs a. On an adequate SILL or PAD to prevent slipping double-pole scaffolds used masons. Fiber or synthetic ropes shall have hook-shaped stops on each end of the following to increase their stability do apply! The ladder-type, a scaffold must be erected plumb, square, and level because, beam-type, or equipped with devices to prevent slipping communicated specifications thoroughly inspecting scaffolding. Should be CONTINUALLY INSPECTED by users to be sure that they are maintained in plumb pins or at!