Where water cooled condensing units are specified, cooling towers or evaporative condensers shall be utilized. Before starting operations, all connections to the machine shall be checked to make certain they are properly made. • Sufficient help shall be used to move the scaffold. When a scaffold is being erected, amended or dismantled, only authorised scaffolders shall enter onto the scaffold, which shall be tagged 'RED - DO NOT USE' for the purpose of erecting, amending or dismantling - no other personnel shall enter onto the scaffold. General dimensions. Lockout Device. Start studying the Electrician Test flashcards containing study terms like A piece of 1' 1/2" Liquidtight Flexible Metal Conduit (LFMC) is providing power to a motor. At the rear, and on the sides, the rail shall not be less than 42 inches high. When working overhead, the area below shall be roped off or other equivalent measures shall be taken to protect workers on the work site. (Title 24, Part 2, Section 2-8505(b).) Work lead shall be firmly attached to the work; magnetic work clamps shall be freed from adherent metal particles of spatter on contact surfaces. The maximum width of a Type II handrail above the recess shall be _____ inches. As they shall be painted originally fabricated by a recommendation for each coat containing such equipment to ensure ready to americans mined and more. 30. Where fire-escapes are located at rear of building a gooseneck ladder shall be provided. 9 soft drawn wire. 5. wheelchair ramps are required on corner lots and may be required at . When intermediate members (such as balusters or additional rails) are used, they shall not be more than 19 inches (48 cm) apart. In General Industry, OSHA standards say the guardrail he 2 3/4. Scaffolds shall not be built to a height in excess of 21 feet. Where permitted by the New York City Building Code, Central, the use of a suspended scaffold utilized exclusively for sign hanging work may be performed by or under the direct and continuing. B. Where foam plastic is spray applied to a sill plate without a thermal barrier, it shall have a maximum density of _____ pcf. The gateway shall be cut in the front rail with a drop-ladder and guides from second (2nd) story to safe landing. A device that utilizes a positive means, such as a lock, to hold an energy-isolating device in the safe position and prevent the energizing of a machine or piece of equipment. C. If primers are utilized they shall meet U.L. When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports. 3. curb and gutter shall be poured monolithically, but separate from sidewalk. When screens and mesh are used, they shall extend from the top rail to the walking/working level. (g) Guardrails shall be installed at all working levels or fall arrest systems implemented. Never sit, lean, or rest on or against any railing lifeline. (11) Open Spaces Between Guardrails and Toeboards. Recent years have witnessed this amazing material, i.e., GNPs characterized with large surface area to volume ratio, biocompatibility . Platforms are most commonly used with scaffolding and on fixed ladders. General dimensions. Memorize flashcards and build a practice test to quiz yourself before your exam. 11c ACCSH1995-2 (c) Site-Specific Erection Plan. The scaffold permit shall be re-validated by a competent person prior to first use of scaffold for that shift. The materials used in bone tissue engineering (BTE) have been advancing with each passing day. Scaffolds Guardrails are commonly used for walkways / working areas inside factories, and they are important components of scaffold platforms. 4. Scaffolds and scaffold components shall be inspected for visible defects by a competent person before each work shift, periodically throughout the shift, and after any occurrence which could affect a scaffold's structural integrity. Runners shall be installed along the length of the scaffold, located on both the inside and outside posts at level heights (when tube and coupler guardrails and midrails are used on outside posts, they may be used in lieu of outside runners). All portable ladders shall extend at least 3 feet above the landing and shall be tied, blocked, or otherwise secured at the top and the bottom to prevent displacement and shall be replaced if they have any broken or missing rungs or steps and . (4) A lid that can be closed by gravity shall be provided on all tar kettles. withdrawn) as it becomes unnecessary, much as a scaffold is removed from a building during construction. Other members shall conform to the requirements of subparagraph (i). The mid-rail shall be installed at a height approximately midway between the top edge of the guardrail system and the platform surface. Inspect horizontal bar when erecting or scaffolding, excessive rust or opposing angle are good condition or collapse accident cases, or repair scaffolds more. Unless the scaffold is fully planked and equipped with proper guardrails and toeboards, the employee shall be tied off using a . They shall be maintained in good condition. A double locking lanyard shall be used to maintain a 100% tie-off when moving. A single double locking lanyard shall have one end attached to a fixed anchor and the other end connected to a body. Defrost should not be limited to electrical units. Scaffolds shall be free of ice, snow, oil, and other slippery materials before being . Ladders or stairs shall be provided for each elevation accessed greater than 19 inches in height. • Flooring shall be solid from side-to-side and secured in place with cleats. (a) Every scaffold, the platform level of which is more than six feet above the ground or above a permanent or temporary floor, other than iron workers' scaffolds and carpenters' bracket scaffolds, shall be provided with guard rails not less than thirty-six inches high above the platform level, and with solid toe boards not less than six inches high above the platform level, extending its . (i) For storage in excess of 2,000 cubic feet (56 m 3) total gas capacity of cylinders or 300 (135.9 kg) pounds of liquefied petroleum gas, a separate room or compartment conforming to the requirements specified in paragraphs (f)(6)(i)(H) and of this section shall be provided, or cylinders shall be kept outside or in a special building. Ex. New brackets shall be provided where necessary. 4. OSHA Safety Training - Scaffolds Page 2 of 3 The employer shall have each employee who performs work while on a scaffold trained by a person qualified in the subject matter to recognize the hazards associated with the type of scaffold being used and to understand the procedures to control or minimize those hazards. When vertical lifelines are used, they must be fastened to a fixed safe point of anchorage, independent of the scaffold, and be protected from sharp edges and abrasion. Where horse scaffolds are more than two tiers in height, braces shall be provided between all horses used. A metal spreader shall be provided on step ladders to securely hold the front and back sections in open position. (c) Roof Davit Systems. Has convenient open access routes for material truckload deliveries and has room for parking of tailors at station. Is in close proximity to structure. Sprinkler, water, or other utility lines shall not be used as tie-off areas. (b) Spreader. (1) Wood ladders shall comply with Section 3278, Portable Wood Ladders of the General Industry Safety Orders and they shall not be painted with other than a transparent material. If these distances are exceeded, fall protection must be provided; The height of the top-rail for scaffolds must be between 38 inches and 45 inches above the work platform. Personnel shall never pass under a suspended load. When sectional ladders are used they shall conform to the following: (a) Length. (7) The tar kettle shall be maintained level when containing molten material. 2.1.3 A Competent Person shall determine fall protection measures for employees erecting or dismantling scaffolds. The inboard ends of suspension scaffold outrigger beams shall be stabilized by bolts or other direct connections to the floor or roof deck, or they shall have their inboard ends stabilized by counterweights, except masons' multi-point adjustable suspension scaffold outrigger beams shall not be stabilized by counterweights 1926.451(d)(3) (OSHA,2002) With the continuous development of nanomedicine, gold nanoparticles (GNPs), which are easy to be synthesized and functionalized, have attracted increasing attention. Such protection shall also be provided for polyethylene sheeting under the scaffold area if the material being removed has sharp projections which could readily puncture the enclosure material. Suspension outrigger beams shall be made of structural metal or equivalent strength material, and restrained to prevent movement. 1: For motor circuits over 1000 volts, nominal; a controller disconnecting means lockable in accordance with 110.25 shall be permitted to be . The maximum pressure allowed for compressed air used for cleaning is _____ psi. Netting OSHA 1926.105 states: "Safety nets shall be provided when workplaces are more than 25' above the ground or water surface, or other surfaces where the use of ladders, scaffolds, catch platforms, temporary floors, safety lines, or safety belts is impractical. 2.1.2 Scaffolds shall be erected, moved, dismantled or altered by only trained Scaffold Builders under the supervision and direction of a Competent Person qualified for such work. For adequate fall protection while using scaffolds 10' or more above a lower level working surface, workers must be protected with a personal fall arrest system or guardrail system. Section 10. Scaffolding E-Tools . At construction sites, workers shall adhere to the threshold height no greater than 6 feet, as per EM 385-1-1 and OSHA's Construction Industry Standards, 29 CFR 1926.500, Subpart M. When USACE employees visit construction sites to inspect contractor work, they shall comply with the 6 ft threshold. 2. Safe points of anchorage include structural members of buildings, but not standpipes, vents, electrical conduit, etc., or anything that may give way under the force of a fall. 2.0. c. 149, Section 148C, shall be paid at their regular straight For scaffolds more than 24 feet in height and not more than 40 feet in height, the poles shall be 4 by 4 inches in cross section, and for scaffolds more than 40 feet in height 4 by 6 inches in cross section or heavier as required. (f) Guardrails and toeboards. The two ends to be. Fireproofing contractor shall be provided a pumping station that: A. • Guardrails and toe boards are required on any scaffold over five feet high. 5 "" 5" TURNLOK®"460"SCAFFOLDING"SYSTEM"COMPONENTS" Standards" The"TURNLOK®"460"standards"are"the" vertical"elements"of"the"system."They" are"manufactured"from"48.3mm" (10) Toeboards. These factors must tightened to design. Residential Construction - employees engaged in residential construction, at heights >6' above the lower level shall be protected by a guardrail system, safety net system, or personal fall arrest system. Exceptions: For the purposes of this section: The term "floor" in Sections 3308.7.1 through 3308.7.7 shall mean "platform."; The height of the toprail, as prescribed in Section 3308.7.2, may be as low as 38 inches (965 mm) in a guardrail system utilized in connection with a scaffold, and such toprail may deflect to a height of not less than 38 inches (965 mm) when designed in accordance with . Scaffolds and stationary work platforms shall be tied into the building with rigid connectors spaced 4 times the minimum width at intervals not exceeding 26 ft (7.9 m). The height of the toprail, as prescribed in Section 3308.7.2, may be as low as 38 inches (965 mm) in a guardrail system utilized in connection with a scaffold, and such toprail may deflect to a height of not less than 38 inches (965 mm) when designed in accordance with exception number 1 to Section 3308.7.3. Eye protection shall also be provided for any other employees required to work in the immediate area and who are exposed to the hazards of the operations listed. They are added to the scaffolds to improve their structural properties and delivery performance. Scaffold planks shall extend over end supports at least six inches but not more than 12 inches. Direct access from another surface is acceptable when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surfaces. There's a small exception in that handrails already in place before 2005 could be at least 910mm high. Laborers who utilize sick time, earned pursuant to Massachusetts G.L. (f) An access ladder or equivalent safe access shall be provided. How far back from the motor connector are we allowed before we are required to secure the LFMC?, The feeder conductor ampacity shall not be less . 2.Ladders less than 20 feet may be used as work platforms only when use of small hand tools or handling of light material is involved. • Scaffolding shall not be moved until its height is reduced below 15 feet. Disposal bags shall be of six (6) mil polyethylene, preprinted with labels as required by OSHA Requirement 29 CFR 1926.1101 (k) (8). (e) Bracing. (b) Bearing of poles at lower ends. Handrails shall be provided on at least one side of a stairway having a minimum of _____ risers. 2. if the curb, gutter, concrete drainage swale, sidewalk or driveway do not exist they shall be constructed. A retractable lifeline may be considered when working in areas such as on roofs and scaffolds, or in tanks, towers, vessels, or manholes. The instructions or warnings outlined on the tag must be followed. All scaffolds shall be inspected and permitted for that shift by a competent person. No employee shall be forced or required to work at varnishing without necessary safety appliances and precautions furnished and utilized. (14) Ladders shall not be used on scaffolds to gain additional height. The utilization of a machine or piece of equipment to perform its intended production function. Overhead protection shall be provided for personnel on a scaffold exposed to overhead hazards. Support is tapered off (i.e. Exception No. scaffold. Pneumatically driven nail guns and staplers which operate at more than _______ psi shall have a safety device on the muzzle to prevent the tool from ejecting fasteners, unless the muzzle is in contact with the work surface. (e) All scaffolding and accessories shall have any defective parts immediately replaced or repaired. Scaffolds shall be installed safely according to both manufacturer and OSHA requirements, be in good condition, and be designed for the type of work to be performed. Tools and equipment shall not be left unsecured in any elevated scaffold. 100. General requirements. MATERIAL REQUIREMENTS: All scaffold components shall conform to the relevant Indian (IS: 2750- 1964 & IS 4014-1967) or equivalent. SENRAC Workgroup May 9, 1995.752 §1910.752(h) in 4/3/95 draft. Cast nailed it application of crane or piling of the cranes and drive the. An intermediate guardrail shall be provided around the entire platform between the top guardrail and the toeboard. b. 1.Scaffolds, platforms, or temporary floors shall be provided for all work except that can be performed safely from the ground or similar footing. Where required by Section 3314.8, the scaffold shall be enclosed with a debris netting consisting of a wire screen comprised of not less than number 18 gage wire mesh, or equivalent synthetic netting that is flame retardant in accordance with NFPA 701, with openings in the wire or synthetic mesh no larger than ½ inch (13 mm). (6) A vessel shall not be filled closer than 6 inches from the overflow level. Scaffolds are used in industries as temporary work places to provide support for workmen, plant and materials used in buildings, construction, maintenance, repair and demolition work, etc. 2.1.4 Scaffold Guardrail Requirements 2.1.4.1 Scaffold working surfaces 6 feet or more above grade . False. this Agreement shall continue in full force and effect, provided that in no case shall wage rates be paid which are lower than those set out in this Agreement. Except as provided in Section 3003.3.2, in buildings five stories in height or more, underground buildings as described in Section 405.1, and high-rise buildings, all floors shall be served by at least one elevator that shall be kept available for immediate use by the Fire Department during all hours of the night and day, including holidays . When and if an employer can demonstrate that the fall protection required is either infeasible, or creates a greater hazard, then the employer shall identify a suitable, approved fall . (1) Safety nets shall be provided when workplaces are more than twenty-five feet above the ground, water, or other surface where the use of ladders, scaffolds, catch platforms, temporary floors, safety lines or safety belts or harnesses is impractical. The red, yellow, and green tag system will be utilized. If they are over 60 feet in height, they shall be designed by a qualified engineer competent in this field, and it shall be constructed and erected in accordance with such design. When obliged to wash containers, tank, or kettles with strong solutions, they shall be furnished with suitable clothing. Scaffolding. Coiled welding cable shall be spread out before use to avoid serious overheating and . System scaffold components of different manufacturers shall not be intermixed unless they are compatible. Damaged or deteriorated components shall not be used. Intermediate members, such as balusters, when used between posts, will not be more than 19 inches apart. 1926.451(c)(4) and (5) Tube and coupler scaffolds shall be limited in heights and working levels to those permitted in Tables L- 10, 11, and 12. 1926.452 (b) (8) Exception : Refer to Section 3287(a)(1) for maximum length. 4. all driveway slopes to be 2% from top of curb or lip of swale to right-of-way. Signs reading "Danger - Work Overhead" shall be conspicuously posted around the area. When midrails are used, they shall be installed at a height midway between the top edge of the guardrail system and the walking/working level. Scaffolds or Work Platforms. Many ceramic materials such as calcium phosphate groups and mineral trioxide aggregate materials have been used and are currently in use for bone regeneration procedures [ 16 ]. Scaffolding consists of the activities provided by the educator, or more competent peer, to support the student as he or she is led through the zone of proximal development. The top edge height of toprails or equivalent member on supported scaffolds shall be installed between 38 inches and 45 inches above the platform surface. The gooseneck ladder may be placed at an angle from the top floor balcony to the roof. Scaffolds shall be inspected, signed and dated at 7 day The crane shall be complete a single page of it: prefabricated concrete or design of clear span or vertical layout. An individual disconnecting means shall be provided for each controller and shall disconnect the controller. This chapter covers different types of scaffolds and ladders used in conjunction with scaffolds. It shall be the responsibility of the employee to use the eye protection provided by the employer (see sections 4101.12 and 4101.13 of the Revised Code). criteria. Scaffolding hazards: (5) Sectional ladders. Where defrost units are required, they shall be electrically operated with adequate space provided to replace defrost elements. Scaffolds and stationary work platforms shall be tied into the building with rigid connectors spaced 4 times the minimum width at intervals not exceeding 26 ft (7.9 m). Upon completion of the installation of a suspended scaffold, thescaffold, all components of and attachments to the scaffold, and all supports and anchorages of the scaffold shall be inspected prior to use to verify that they are in a safe condition and, where design is required, installed in accordance with the design drawings. In General Industry, OSHA standards say the guardrail he (2) Each sleeve assembly or each scaffold support system shall be provided with a securely affixed durable and readily visible metal plate bearing the rated load and installer's name in letters at least 1/4-inch in height. Unless the scaffold is fully planked and equipped with proper guardrails and toeboards, the employee shall be tied off using a personal fall-arrest system. There's a small exception in that handrails already in place before 2005 could be at least 910mm high. 2. Sectional ladders shall not exceed sixty feet in extended length. They shall have a guardrail at least 42" high around the top and a toe board around the floor. When conditions warrant, the height of the top edge may exceed the 45-inch height, provided the guardrail system meets all other criteria of paragraph (g)(4) [reference 1926.451(g)(4)(ii)]. Men employed at machines shall be provided with goggles if danger prevails. A ground shall be located at each side and within 10 feet of working areas where conductors, subconductors, or overhead ground conductors are being spliced at ground level. OSHA's scaffolding standard has several key provisions: • Fall protection or fall arrest systems—Each em- ployee more than 10 feet above a lower level shall be protected from falls by guardrails or a fall arrest system, except those on single-point and two-point adjustable suspension scaffolds. (b) Specifications. (h) Scaffolds "in use" shall be tagged as such. The disconnecting means shall be located in sight from the controller location. Scaffolding over 10 feet high shall be secured (tied off) to permanent structures using a minimum No. Special . A 3 1/2-inch toeboard shall be provided alone all sides of the working platform. (5) A tar kettle shall be charged or loaded in a manner to avoid splashing. All suspension scaffold and support devices shall be attached to or rest on the surfaces capable of supporting at least 4 timesthe intended load weight. c. Scaffold users shall read scaffold tags prior to using any scaffold. The footing or anchorage for scaffolds shall be sound, rigid and capable of . Normal Production Operations. The following are sample citation allegations based on the Examples in Section E. If compliance personnel issue a citation to a creating, controlling and/or a correcting employer, they shall utilize the following basic approaches: (1) Creating Employer "On (date) employees were exposed to scaffolding without guardrails. 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