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Glossary of Powered Access & Safety Terms

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Glossary of Powered Access & Safety Terms SUSPENDED SCAFFOLDING & RIGGING SOLUTIONS FALL PROTECTION Glossary of Powered Access & Safety Terms MATERIAL HOISTING WIND ACCESS Accessories: those components which, Ascending: a suspended scaffold moving Brace: a rigid connection that holds one when added to scaffolding or shoring, upward, or climbing scaffold member in a fixed position with SERVICE enhance their utility or usefulness respect to another member, or to a building EXPERTISE Authorized person: a person approved or or structure Accessway: a system which provides assigned by the employer to perform a FORMS, access of personnel to and from scaffold specific type of duty or to be at a specific Brake, primary: a brake used to stop a APPLICATIONS platforms location on the jobsite hoist and its load under normal operating & DOCUMENTS conditions Adjustable suspension scaffold: a Base: the relevant points at which a APPENDIX suspension scaffold equipped with a structure makes contact with its support Brake, secondary: a brake designed to hoist(s) that can be operated by an prevent the descent of the suspended or employee(s) on the scaffold Base plate: a device used to distribute leg supported equipment in the event of an or post load over a larger area overspeed condition Allowable load: see Load, Allowable Beam: a narrow horizontal structural Breech: the opening between the sheave GLOSSARY Alternating current (AC): a current which load-bearing member and the inside of a block OF POWERED reverses in regularly recurring intervals ACCESS & of time and which has alternative positive Beam clamp (scaffold): a device used to Breech reeving: in suspended access SAFETY TERMS and negative values, and occurring a fasten a scaffold member to a beam flange describes the process of placing a specified number of times per second suspension wire rope into a device using CONVERSION (See Frequency) Beam clamp (shoring/suspended): a other than the bitter end to insert the rope TABLE device used to fasten two I-beam members into the device. Generally saves time. American National Standards Institute at their flanges when one I-beam is resting ALPHABETICAL (ANSI): an organization which develops across the other I-beam flange Buckle: any device for holding the body PRODUCT INDEX standard safety specifications and belt or body harness closed around the procedures for a wide range of industrial Birdcage (suspended scaffolds): a kink worker’s body PART NUMBER equipment, including ladders and scaffold. pulled through or displacement of outer PRODUCT INDEX Many OSHA regulations are based on these wire rope strands forced into compression Building face roller: a suspended scaffold standards. Also known as ANSI forming a cage platform guide roller designed to contact the outer face or wall structure of a building Ampere (Amp): the unit of electric current Boatswain’s chair: see Bosun’s chair flow. One ampere will flow when one volt Building maintenance: operations such as is applied across a resistance of one ohm. Boatswain’s stand: see Bosun’s stand window cleaning, caulking, metal polishing, reglazing and general maintenance on Anchor: a device used to secure any item Body belt (safety belt): a strap with building surfaces of scaffold to a rigid point means both for securing it about the waist and for attaching it to a lanyard, Cable: a conductor or group of conductors Anchorage: a secure means of attachment lifeline or deceleration device; not enclosed in a weatherproof sheath, that to which the personal fall arrest system is acceptable as a fall arrest device may be used to supply electrical power connected and/or control current for equipment or to Body harness: a design of straps which provide voice communication circuits Anchored track: galvanized steel I-beams may be secured about the employee in a anchored to the building structure in manner to distribute the fall arrest forces Cable restraint: flexible wire mesh parallel to enable a roof machine to over at least the thighs, pelvis, waist, chest gripping device designed so that the more traverse horizontally along the rooftop and shoulders, with means for attaching you pull, the more it grips; used with swing it to other components of a personal fall stages to support the weight of the cable Anemometer: an instrument for measuring arrest system and to relieve stress upon the electrical wind velocity wiring devices Bosun’s chair: a suspended seat designed Angulated roping: a method of stage to accommodate one worker in a sitting Cage: see Scaffold, Single-point suspension in which the upper wire rope position adjustable suspension sheaves or suspension points are closer to the plane of the building face than the Bosun’s stand: a suspended stand Cantilever: the portion of a structural corresponding attachment points on the designed to accommodate one worker in a member which projects beyond its support stage, thus causing the platform to press standing position against the face of the building during its Capacitance: the property of a circuit or vertical travel Bowline: a knot used for rigging bosun’s body that permits it to store an electrical chairs, tying off to supports, making a loop charge equal to the accumulated charge ANSI: see American National Standards for other lines to run through divided by the voltage. Capacitance is Institute expressed in farads. Bowline on a bight: a variation of the Approved: accepted by the authority having bowline knot, tied in a bight of a rope; it Carabiner: a connector component jurisdiction gives two non-slipping loops generally comprised of a trapezoidal or oval shaped body with a normally closed gate or Arresting force: the force, generated by similar arrangement which may be opened arresting the test weight, that is transmitted to permit the body to receive an object through the fall arrest system components and, when released, automatically closes to to the anchorage retain the object Spider® | www.spiderstaging.com | [email protected] | phone: 1-877-774-3370 255 Glossary of Powered Access & Safety Terms (Continued) Carriage: a mobile assembly used for the Contactor: an electro-mechanical device Debris chute: an enclosed conveyance to movement and support of a work platform operated by an electric coil; it allows automatic direct the flow of waste material to a collection or remote operation to repeatedly establish or bin below Caster: a pivoting wheel, containing a wheel interrupt an electrical power circuit. lock, a swivel or non-swivel lock or both, Deceleration device: see Shock absorber which is attached to the base of a scaffold Contacts: devices for making and breaking tower for manual movement of the scaffold; electrical circuits, which are a part of all Deceleration distance: the additional vertical a caster does not have to contain a swivel electrical switching devices distance a falling employee travels, excluding lifeline elongation and free fall distance, before Certification: a written, signed and dated Continuous stabilization: the portion of a stopping, from the point at which the statement confirming the performance of a suspended unit (suspended scaffold) that deceleration device begins to operate. It requirement positively engages the building tie-in guides is measured as the distance between the and provides work platform stabilization for location of an employee’s body belt or body Certified: accepted by design, evaluation vertical travel of the platform along the full harness attachment point at the moment of or inspection by a registered professional length of the building façade activation (at the onset of fall arrest forces) engineer of the deceleration device during a fall, and Continuous stabilization buttons: channel the location of that attachment point after the APPENDIX Circuit: a complete or partial path over which shape attached to each end of the platform that employee comes to a full stop electric current may flow slide over buttons that are placed at every floor Descending: a suspended scaffold moving Circuit breaker: a mechanical switching Control: a system governing starting, downward device capable of making, carrying, and stopping, direction, acceleration, speed and breaking currents under normal conditions. retardation of moving members Direct current (DC): an electric current flowing Also making, carrying for a specific time, in one direction and automatically breaking currents under Controlled descent device: a device which specified abnormal circuit conditions, such as allows a worker to descend at a controlled Directional controls: all primary controls those of short circuit. Circuit breakers have speed necessary to raise, lower, rotate, telescope, an ampere trip rating for normal overload drive or otherwise initiate the powered protection and a maximum magnetic ampere Cornice hook: a hook designed expressly to functions of the work platform interrupting capacity (AIC) for short circuit handle the forces exerted by point-loading the protection. device to secure a suspension cable under a Distribution panel: a device that provides cornice of a building. multiple power outlets from a 208V 3-phase or Cladding: wind or weather enclosure material 240V single-phase power source for operating used as a means of containment Counterweight: weight or weights used to power tools, work lights, and other electrical counterbalance a load equipment Clamp, parapet: an adjustable rigging device that clamps over structural parapets of varying Coupler: a device for locking together the Double bowline: a variation of a bowline knot, widths from which a load
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