#Scaffold definition series#

Such lines do not include extension cords or power tool cords.Įye or Eye splice means a loop with or without a thimble at the end of a wire rope.įabricated decking and planking means manufactured platforms made of wood (including laminated wood, and solid sawn wood planks), metal or other materials.įabricated frame scaffold (tubular welded frame scaffold) means a scaffold consisting of a platform(s) supported on fabricated end frames with integral posts, horizontal bearers, and intermediate members.įailure means load refusal, breakage, or separation of component parts.

#Scaffold definition series#

Cleats are also used to provide footing on sloped surfaces such as crawling boards.Ĭompetent person means 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.Ĭontinuous run scaffold (Run scaffold) means a two-point or multi-point adjustable suspension scaffold constructed using a series of interconnected braced scaffold members or supporting structures erected to form a continuous scaffold.Ĭoupler means a device for locking together the tubes of a tube and coupler scaffold.Ĭrawling board (chicken ladder) means a supported scaffold consisting of a plank with cleats spaced and secured to provide footing, for use on sloped surfaces such as roofs.ĭeceleration device means any mechanism, such as a rope grab, rip-stitch lanyard, specially-woven lanyard, tearing or deforming lanyard, or automatic self-retracting lifeline lanyard, which dissipates a substantial amount of energy during a fall arrest or limits the energy imposed on an employee during fall arrest.ĭouble pole (independent pole) scaffold means a supported scaffold consisting of a platform(s) resting on cross beams (bearers) supported by ledgers and a double row of uprights independent of support (except ties, guys, braces) from any structure.Įquivalent means alternative designs, materials or methods to protect against a hazard which the employer can demonstrate will provide an equal or greater degree of safety for employees than the methods, materials or designs specified in the standard.Įxposed power lines means electrical power lines which are accessible to employees and which are not shielded from contact. (See Multi-point adjustable 'suspension scaffold.')Ĭleat means a structural block used at the end of a platform to prevent the platform from slipping off its supports. Additional support may be provided by vertical pickups.Ĭhimney hoist means a multi-point adjustable suspension scaffold used to provide access to work inside chimneys. Brace means a rigid connection that holds one scaffold member in a fixed position with respect to another member, or to a building or structure.īricklayers' square scaffold means a supported scaffold composed of framed squares which support a platform.Ĭarpenters' bracket scaffold means a supported scaffold consisting of a platform supported by brackets attached to building or structural walls.Ĭatenary scaffold means a suspension scaffold consisting of a platform supported by two essentially horizontal and parallel ropes attached to structural members of a building or other structure. Adjustable suspension scaffold means a suspension scaffold equipped with a hoist(s) that can be operated by an employee(s) on the scaffold.īearer (putlog) means a horizontal transverse scaffold member (which may be supported by ledgers or runners) upon which the scaffold platform rests and which joins scaffold uprights, posts, poles, and similar members.īoatswains' chair means a single-point adjustable suspension scaffold consisting of a seat or sling designed to support one employee in a sitting position.īody belt (safety belt) means a strap with means both for securing it about the waist and for attaching it to a lanyard, lifeline, or deceleration device.īody harness means a design of straps which may be secured about the employee in a manner to distribute the fall arrest forces over at least the thighs, pelvis, waist, chest and shoulders, with means for attaching it to other components of a personal fall arrest system.