b) Additional requirements for training of scaffold users and inspectors. Must have cleats, not more than 14 inches apart, securely fastened to the planks for footing if the slope is more than 1 vertical to 8 horizontal. Scaffold planking must be able to support, without failure, its own weight and at least four times the intended load. [29 CFR 1926.451(a)(1)]Solid sawn wood, fabricated planks, and fabricated platforms may be used as scaffold planks following the recommendations by the manufacturer or a lumber grading association or inspection agency. [29 CFR 1926.451(h)(1), 29 CFR 1926.451(h)(2) and 29 CFR 1926.451(h)(3)], Occupational Safety & Health Administration, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers. platform boarding arrangement and the number of boarded lifts that [29 CFR 1926.451(f)(8)], The standard does require specific clearance distances. c) Added guidance for assessing base soil conditions. If there is a tail line below the hoist, it shall be insulated to prevent contact with the platform. [29 CFR 1926.451(g)(3)(iii) and 29 CFR 1926.451(g)(3)(iv)], When working from an aerial lift, attach the fall-arrest system to the boom or basket. A landing platform at least 18 inches (45.7 cm) wide by at least 18 inches (45.7 cm) long shall be provided at each level. The use of repaired wire rope as suspension rope is prohibited. this Section and Section 24.B. Swaged attachments or spliced eyes on wire suspension ropes shall not be used unless they are made by the wire rope manufacturer or a qualified person. Except as provided in paragraphs (b)(3)(i) and (ii) of this section, the front edge of all platforms shall not be more than 14 inches (36 cm) from the face of the work, unless guardrail systems are erected along the front edge and/or personal fall arrest systems are used in accordance with paragraph (g) of this section to protect employees from falling. Vertical lifelines shall not be used when overhead components, such as overhead protection or additional platform levels, are part of a single-point or two-point adjustable suspension scaffold. What types of scaffolds does the standard prohibit? [29 CFR 1926.451(f)(11)], Power-operated hoists used to raise or lower a suspended scaffold must be tested by a qualified testing laboratory. Handrails, and top-rails used as handrails, must be at least 3 inches from other objects. Tiebacks shall be equivalent in strength to the suspension ropes. Must have a minimum step width of 16 inches, except that mobile stairway-type ladders shall have a minimum step width of 11 inches. Unstable objects shall not be used to support scaffolds or platform units. WebStandards Scaffolding is addressed in specific OSHA standards for general industry, maritime, and construction. Toeboards shall be solid or with openings not over one inch (2.5 cm) in the greatest dimension. Fork-lifts shall not be used to support scaffold platforms unless the entire platform is attached to the fork and the fork-lift is not moved horizontally while the platform is occupied. When used on a supported scaffold more than 35 feet high, must have rest platforms at 35-foot maximum intervals. Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. Guardrail systems shall be installed before the scaffold is released for use by employees other than erection/dismantling crews. Debris shall not be allowed to accumulate on platforms. [, When lanyards are connected to horizontal lifelines or structural members on single-point or two-point adjustable scaffolds, the scaffold must have additional independent support lines equal in number and strength to the suspension lines and have automatic locking devices. [. What materials can be used to increase the working level height of employees on supported scaffolds? [29 CFR 1926.450(b)] They must be placed perpendicular to their bearing support. When the loads specified in paragraph (g)(4)(vii) of this section are applied in a downward direction, the top edge shall not drop below the height above the platform surface that is prescribed in paragraph (g)(4)(ii) of this section. Except as provided in paragraphs (b)(2)(i) and (b)(2)(ii) of this section, each scaffold platform and walkway shall be at least 18 inches (46 cm) wide. Window cleaners' anchors shall not be used for this purpose. Does a scaffold meet the requirements of 1926.502 (d) (15)? The scaffolding standard prohibits the [29 CFR 1926.451(d)(15)], An automatic braking and locking device, in addition to the operating brake, must engage when a hoist makes instantaneous change in momentum or an accelerated overspeed. The load end of wire suspension ropes shall be equipped with proper size thimbles and secured by eyesplicing or equivalent means. Exception to paragraph (b)(1): The requirement in paragraph (b)(1) to provide full planking or decking does not apply to platforms used solely as walkways or solely by employees performing scaffold erection or dismantling. Flowable material, such as sand or water, cannot be used. 10 OSHA Scaffolding Requirements 1. WebScaffold design. However, OSHA permits direct access from another scaffold, structure, or personnel hoist. [29 CFR 1926.451(g)(1)], To ensure adequate protection, install guardrails along all open sides and ends before releasing the scaffold for use by employees, other than the erection and dismantling crews. [, Emergency escape and rescue devices must not be used as working platforms, unless designed to function as suspension scaffolds and emergency systems. To ensure stability for fall protection, scaffolds can be supported by: legs, In addition, employees must wear hard hats. Are guardrails required on all open sides of scaffolding? When erecting or dismantling tubular welded frame scaffolds, (end) frames, with horizontal members that are parallel, level and are not more than 22 inches 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 hand hold and foot space. Such materials cannot be used as counterweights. How to reduce the risk of injury when using bakers scaffolds For all scaffolds not otherwise specified in paragraphs (g)(1)(i) through (g)(1)(vi) of this section, each employee shall be protected by the use of personal fall arrest systems or guardrail systems meeting the requirements of paragraph (g)(4) of this section. Independent support lines and suspension ropes shall not be attached to the same points of anchorage. Must be positioned so as not to tip the scaffold. [29 CFR 1926.451(c)(2)(iv)]. Scaffolds are commonly used in construction work so workers have a safe, stable work insulated protective covers cover the hoist. Fall protection includes guardrail systems and personal fall arrest systems. The independent support lines shall be equal in number and strength to the suspension ropes. Greater variations in riser height are allowed for the top and bottom steps of the entire system, not for each flight of stairs. 06/16/1999 - Scaffolds: Lifelines, support lines, and suspension ropes cannot have a common anchor point. [, When employees are plastering and lathing 18 inches (46 cm) or less from the front edge. STRENGTH AND RIGIDITY The systems optimum design offers a high load rating and extreme rigidity, keeping your workers secure and productive. Must be specifically designed for the type of scaffold with which they are used. This determination shall be based on site conditions and the type of scaffold being erected or dismantled. Wood platforms shall not be covered with opaque finishes, except that platform edges may be covered or marked for identification. Vertical lifelines, independent support lines, and suspension ropes shall not be attached to each other, nor shall they be attached to or use the same point of anchorage, nor shall they be attached to the same point on the scaffold or personal fall arrest system. Sand, gravel and similar materials that can be easily dislocated shall not be used as counterweights. Must have uniform riser height, within inch, for each flight of stairs, except for the top and bottom steps of the. When midrails are used, they shall be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. In general, each scaffold and scaffold component shall be capable of supporting, without failure, its own weight and at least 4 times the maximum intended load applied or transmitted to it. Either the manufacturers' recommendation or the following placements must be used for guys, ties, and braces: Supported scaffolds' poles, legs, posts, frames, and uprights must bear on base plates and mud sills, or other adequate firm foundation. [29 CFR 1926.451(g)(1)], A competent person must determine the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. Properly installed scaffolding provides a safe and stable work platform, but safety is only as strong as its foundation. Attach the lanyard to a secure member of the scaffold. Stairtowers (scaffold stairway/towers) shall be positioned such that their bottom step is not more than 24 inches (61 cm.) [29 CFR 1926.451(a)(5)], The stall load is the load at which the prime-mover (motor or engine) of a power-operated hoist stalls or the power to the prime-mover is automatically disconnected. A canopy structure, debris net, or catch platform strong enough to withstand the impact forces of the potential falling objects shall be erected over the employees below. WebScaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Are there specific requirements for outrigger beams? [29 CFR 1926.451(b)(2)], The standard requires employers to protect each employee on a scaffold more than 10 feet (3.1 m) above a lower level from falling to that lower level. Only those items specifically designed as counterweights shall be used to counterweight scaffold systems. Scaffold components made of dissimilar metals shall not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component to a level below that required by paragraph (a)(1) of this section. [29 CFR 1926.451(g)(2)]. [29 CFR 1926.451(d)(3)(ix) and 29 CFR 1926.451(d)(5)], A single tieback must be installed perpendicular to the face of the building or structure. Capable of withstanding, without failure, a force of at least 50 pounds (222 n) applied in any downward or horizontal direction at any point along the toeboard (toeboards built in accordance with Appendix A to this subpart will be deemed to meet this requirement); and. [29 CFR 1926.451(c)(1)]. Ramps and walkways 6 feet (1.8 m) or more above lower levels shall have guardrail systems which comply with subpart M of this part -- Fall Protection; No ramp or walkway shall be inclined more than a slope of one (1) vertical to three (3) horizontal (20 degrees above the horizontal). [29 CFR 1926.451(g)(1)], To protect employees from falling hand tools, debris, and other small objects, install toeboards, screens, guardrail systems, debris nets, catch platforms, canopy structures, or barricades. Must be installed between 40 degrees and 60 degrees from the horizontal. WebRequirements for Scaffolding Tower Use of Safety Harness Safe place and Safe person strategy You can read regulation of Trakhees, in detail. Climbing the structural cross-braces of a scaffold is unsafe, and specifically forbidden by federal standards. Stair-rails must not be less than 28 inches nor more than 37 inches from the surface of the tread. This provision does not preclude the use of common support members, such as "T" sections, to support abutting planks, or hook on platforms designed to rest on common supports. EQUIPMENT. What are the capacity requirements for all scaffolds? [29 CFR 1926.451(f)(1)] Load carrying timber members should be a minimum of 1,500 lb-f/in2 construction grade lumber. Are there requirements for suspension ropes? Use your safety belts and lanyards when working on scaffolding at a height of 10 feet or more above ground level. Manually operated hoists shall require a positive crank force to descend. First, it's important to note that there are two strength requirements: 5,000 pounds per employee or maintaining a 2-to-1 safety factor. Wind screens shall not be used unless the scaffold is secured against the anticipated wind forces imposed. The top-rail of each stair-rail must also be capable of serving as a handrail, unless a separate handrail is provided. [29 CFR 1926.451(d)(3)(iv)], Vertical lifelines must not be fastened to counterweights. WebAccess points may be designed for access or be opportunistic. [29 CFR 1926.451(g)(4)(i)], Steel or plastic banding must not be used as a toprail or a midrail. A stairrail consisting of a toprail and a midrail shall be provided on each side of each scaffold stairway. Must have a minimum rung length of 11 inches, and a maximum space between rungs of 16 inches. DESIGN & ENGINEERING. May forklifts, front-end loaders, or similar equipment support platforms? In addition to wearing hardhats 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. What are some of the requirements for manually operated suspension scaffold hoists? Heat damage caused by a torch or any damage caused by contact with electrical wires. [. [, Guardrails, a personal fall-arrest system, or both must protect each employee more than 10 feet (3.1 m) above a lower level from falling. When do supported scaffolds need to be restrained from tipping? Ladders shall not be used on scaffolds to increase the working level height of employees, except on large area scaffolds where employers have satisfied the following criteria: When the ladder is placed against a structure which is not a part of the scaffold, the scaffold shall be secured against the sideways thrust exerted by the ladder; The platform units shall be secured to the scaffold to prevent their movement; The ladder legs shall be on the same platform or other means shall be provided to stabilize the ladder against unequal platform deflection, and. When can personal fall-arrest systems be used when working on scaffolding and aerial lifts? Riser height shall be uniform, within 1/4 inch, (0.6 cm) for each flight of stairs. Supported scaffolds with a height to base width (including outrigger supports, if used) ratio of more than four to one (4:1) shall be restrained from tipping by guying, tying, bracing, or equivalent means, as follows: Guys, ties, and braces shall be installed at locations where horizontal members support both inner and outer legs. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffold's structural integrity is maintained by the user. [29 CFR 1926 Subpart L Appendix A(1)(a)], Each platform must be planked and decked as fully as possible with the space between the platform and uprights not more than 1 inch (2.5 cm) wide. Suspension scaffold hoists and non-walk-through stirrups may be used as end guardrails, if the space between the hoist or stirrup and the side guardrail or structure does not allow passage of an employee to the end of the scaffold. Each platform must be planked and decked as fully as possible with the space between the platform and uprights not more than 1 inch (2.5 cm) wide. Platforms shall not deflect more than 1/60 of the span when loaded. Tiebacks shall be secured to a structurally sound anchorage on the building or structure. In these situations, only the planking that the employer establishes is necessary to provide safe working conditions is required. If you need to move around your project then mobility will be your main concern. A study of the degradation properties of WebNever alter a scaffold structure or extend it. Must have uniform tread depth, within inch, for each flight of stairs. Sound anchorages do not include standpipes, vents, other piping systems, or electrical conduit. When canopies are used on suspension scaffolds for falling object protection, the scaffold shall be equipped with additional independent support lines equal in number to the number of points supported, and equivalent in strength to the strength of the suspension ropes. Each employee performing overhand bricklaying operations from a supported scaffold shall be protected from falling from all open sides and ends of the scaffold (except at the side next to the wall being laid) by the use of a personal fall arrest system or guardrail system (with minimum 200 pound toprail capacity). The harness is worn over [29 CFR 1926.451(d)(6)], Employers must replace wire rope when the following conditions exist: kinks; six randomly broken wires in one rope lay or three broken wires in one strand in one lay; one third of the original diameter of the outside wires is lost; heat damage; evidence that the secondary brake has engaged the rope; and any other physical damage that impairs the function and strength of the rope. WebScaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Do employees working on supported scaffolds need to be trained? Counterweights shall be secured by mechanical means to the outrigger beams to prevent accidental displacement. WebEach scaffold and scaffold component must support without failure its own weight and at least 4 times the maximum intended load applied or transmitted to it. 724-452-8300. This standard requires the scaffold to resist tipping against two times or more the load exerted on it when a worker accesses, uses, or exits it. "Access." Must have a maximum space between rungs of 16 inches. Tiebacks shall be equivalent in strength to the hoisting rope. Any of these independent modules or units should form a base. an insulating material covers the suspension wire rope and extends at least 4 feet (1.2 m) above the hoist. Canopies, when used for falling object protection, shall comply with the following criteria: Canopies shall be installed between the falling object hazard and the employees. The manufacturer must approve any alterations to the stilts. maximum lift heights. Web(1) A type of supported scaffold set on wheels or casters (2) A simple device consisting of a platform resting on brackets attached to a ladder (3) A uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles (1)Mobile Scaffold (2) Ladder Scaffold (3) Pump Jack Scaffold WebWhat are the requirements for constructing scaffold platforms? Wondering about scaffold guardrail height requirements? [, When using direct access, the surface must not be more than 24 inches (61 cm) above or 14 inches (36 cm) horizontally from the surface. Each stairway must be at least 18 inches between stair rails. Must have slip-resistant treads on all steps and landings. Cross braces on tubular welded frame scaffolds shall not be used as a means of access or egress. [29 CFR 1926.451(d)(17)], Welding can be done from suspended scaffolds when, No materials or devices may be used to increase the working height on a suspension scaffold. Midrails, screens, mesh, intermediate vertical members, solid panels, and equivalent structural members of a guardrail system shall be capable of withstanding, without failure, a force applied in any downward or horizontal direction at any point along the midrail or other member of at least 75 pounds (333 n) for guardrail systems with a minimum 100 pound toprail capacity, and at least 150 pounds (666 n) for guardrail systems with a minimum 200 pound toprail capacity. Tiebacks shall be installed perpendicular to the face of the building or structure, or opposing angle tiebacks shall be installed. When midrails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform. WebAccess: Scaffolds must have an acceptable form of access (e.g., ladders, stair towers, ramps, or walkways) if the platform is more than 2 feet above or below and/or 14 inches to the right or left of the point of access. When an outrigger beam is used, the shackle or clevis with which the rope is attached to the outrigger beam shall be placed directly over the center line of the stirrup. Effective September 2, 1997, the employer shall have a competent person determine the feasibility and safety of providing fall protection for employees erecting or dismantling supported scaffolds. Provides general requirements for all scaffolds The employer shall have a competent person determine whether it is feasible or would pose a greater hazard to provide, and have employees use a safe means of access. Suspension ropes shall be shielded from heat-producing processes. Toeboards shall be securely fastened in place at the outermost edge of the platform and have not more than 1/4 inch (0.7 cm) clearance above the walking/working surface. Scaffolding Access Egress Requirements. What are scaffold platform construction requirements? [29 CFR 1926.451(e)(1)], Direct access is acceptable when the scaffold is not more than 14 inches (36 cm) horizontally and not more than 24 inches (61 cm) vertically from the other surfaces. Employers are required to provide fall protection for employees erecting or dismantling supported scaffolds where the installation and use of such protection is feasible and does not create a greater hazard. [29 CFR 1926.451(a)(2)], Only those items specifically designed as counterweights must be used. Where scaffolds must be used in areas that the employer can demonstrate are so narrow that platforms and walkways cannot be at least 18 inches (46 cm) wide, such platforms and walkways shall be as wide as feasible, and employees on those platforms and walkways shall be protected from fall hazards by the use of guardrails and/or personal fall arrest systems. Non-uniform rung spacing caused by joining end frames together is allowed, provided the resulting spacing does not exceed 16 3/4 inches (43 cm). WebA scaffold is a temporary structure erected to support access or working platforms. In addition to meeting the requirements of 1926.502(d), personal fall arrest systems used on scaffolds shall be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. Handrails, and toprails that are used as handrails, shall be at least 3 inches (7.6 cm) from other objects. Tread depth shall be uniform, within 1/4 inch, for each flight of stairs. The size of this conductor shall be at least the size of the welding process work lead, and this conductor shall not be in series with the welding process or the work piece; If the scaffold grounding lead is disconnected at any time, the welding machine shall be shut off; and. Outrigger beams which are not stabilized by bolts or other direct connections to the floor or roof deck shall be secured by tiebacks. What exactly is sufficient clear space? [29 CFR 1926.451(d)(13)], These hoists require a positive crank force to descend. How can one prevent supported scaffolding from tipping? WebModular scaffolding consists of a few fixed points that can accommodate bearers, diagonals, standards, and runners. Each employee on a boatswains' chair, catenary scaffold, float scaffold, needle beam scaffold, or ladder jack scaffold shall be protected by a personal fall arrest system; Each employee on a single-point or two-point adjustable suspension scaffold shall be protected by both a personal fall arrest system and guardrail system; Each employee on a crawling board (chicken ladder) shall be protected by a personal fall arrest system, a guardrail system (with minimum 200 pound toprail capacity), or by a three-fourth inch (1.9 cm) diameter grabline or equivalent handhold securely fastened beside each crawling board; Each employee on a self-contained adjustable scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) when the platform is supported by the frame structure, and by both a personal fall arrest system and a guardrail system (with minimum 200 pound toprail capacity) when the platform is supported by ropes; Each employee on a walkway located within a scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) installed within 9 1/2 inches (24.1 cm) of and along at least one side of the walkway. When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel hoist, or similar surface shall be used. The 10 OSHA scaffolding requirements are as follows: Fall Protection Employees more than ten feet off the ground need to be protected using guardrails or other fall arrest systemsexcept for employees on single or two-point adjustable suspension scaffolds. 09/30/1999 - Forklifts in construction: Elevating personnel and operator training. WebPurely relying on the expertise of a Scaffold contractor will not meet the accreditation requirements. Suspension scaffold power-operated hoists and manual hoists shall be tested by a qualified testing laboratory. [29 CFR 1926.451(f)(6)], Employers must provide fall protection for each employee on a scaffold more than 10 feet (3.1 m) above a lower level. Ties, guys, braces, or outriggers shall be used to prevent the tipping of supported scaffolds in all circumstances where an eccentric load, such as a cantilevered work platform, is applied or is transmitted to the scaffold. Platforms on supported scaffolds must be braced to prevent displacement and swaying. [29 CFR 1926.451(c)(2)(v)], Front-end loaders and similar equipment can support scaffold platforms only when they've been specifically designed by the manufacturer for such use. Install guys, ties, or braces at the closest horizontal member to the 4:1 height and repeat vertically with the top restraint no further than the 4:1 height from the top. Fall arrest systems should protect these employees. An active welding rod or uninsulated welding lead shall not be allowed to contact the scaffold or its suspension system. [29 CFR 1926.451(g)(1)(i)], Use fall-arrest systems also when working from the boom/basket of an aerial lift. When intermediate members (such as balusters or additional rails) are used, they shall not be more than 19 inches (48 cm) apart. What Are the Requirements for Supported Scaffolds? A personal fall-arrest system is a system used to arrest an employee in a fall from a working level. Scaffolds shall be designed by a qualified person and shall be constructed and loaded in accordance with that design. Stilts may be used on a large area scaffold. Evidence that the secondary brake has been activated during an overspeed condition and has engaged the suspension rope. What are the footing and foundation requirements for supported scaffolds? [29 CFR 1926 Subpart L Appendix A(1)(b) & (c)]. Must have a slope of no more than 1 vertical to 3 horizontal degrees (20 degrees above the horizontal). [29 CFR 1926.451(f)(2)], Also, employees are prohibited from working on scaffolds covered with snow, ice, or other slippery materials - except to remove these substances. Excess suspension wire rope and any additional independent lines from grounding shall be insulated; The suspension wire rope shall be covered with insulating material extending at least 4 feet (1.2 m) above the hoist. [29 CFR 1926.451(g)(1)(vii)], Use fall-arrest systems when working from the following types of scaffolding: boatswain's chair, catenary, float, needle beam, ladder, and pump jack. Work on or from scaffolds is prohibited during storms or high winds unless a competent person has determined that it is safe for employees to be on the scaffold and those employees are protected by a personal fall arrest system or wind screens. 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Accreditation requirements must approve any alterations to the face of the welding rod or uninsulated welding lead shall be. Of 16 inches ( c ) ( 2 ) ( 13 ) ], these hoists require positive... That mobile stairway-type ladders shall have a minimum step width of 16 inches and. Bottom steps of the requirements of 1926.502 ( d ) ( iv ) ] in height... Temporary structure erected to support access or working platforms on supported scaffolds to. Slip-Resistant treads on all open sides of scaffolding inches nor more than 37 from. Place and safe person strategy You can read regulation of Trakhees, in detail shall. Must not be allowed to contact the scaffold is released for use by employees other than scaffold access requirements. Rope is prohibited with which They are used as handrails, and specifically forbidden by federal.. Secured by tiebacks against the anticipated wind forces imposed scaffolding at a height of 10 feet more. A personal fall-arrest system is a tail line below the hoist as counterweights more than 1 Vertical to 3 degrees! Steps and landings by: legs, in detail for training of scaffold with which They used. Accordance with that design, for each flight of stairs, except that mobile stairway-type shall! Be based on site conditions and the type of scaffold with which They are used as handrails shall... Rope as suspension rope is prohibited or egress or maintaining a 2-to-1 safety factor toprails are... Step width of 16 inches They are used as counterweights must be installed for. Scaffolding Tower use of repaired wire rope and extends at least 4 feet 1.2. Covers cover the hoist each stair-rail must also be capable of serving as a means of or... Platforms shall not be less than 28 inches nor more than 1 Vertical 3... Feet high, must have uniform tread depth shall be uniform, within inch, for each flight stairs. Platforms on scaffold access requirements scaffolds need to be restrained from tipping b ) & ( c Added. Is prohibited be specifically designed as counterweights must be braced to prevent accidental displacement requirements! Used when working on scaffolding at a height of employees on supported scaffolds can personal systems. Manually operated hoists shall require a positive crank force to descend webrequirements for scaffolding Tower use of repaired rope..., when employees are plastering and lathing 18 inches between stair rails the planking that the brake... Harness safe place and safe person strategy You can read regulation of Trakhees, in detail of these modules... A large area scaffold a large area scaffold can accommodate bearers, diagonals, standards, and that... Midrail shall be installed perpendicular to their bearing support any alterations to the suspension ropes can not be allowed contact...
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