ASME A120.1-2006 pdf free

ASME A120.1-2006 pdf free.Safety Requirements for Powered Platforms and Traveling Ladders and Gantries for Building Maintenance.
accepted: accepted by the enforcing agency having jurisdiction.
allowable stresses: the working stress limitations imposed by a nationally recognized standards-promulgating organization.
angiilated roping: a means of stabilization where the upper point of suspension is inboard from the attachments on the suspended unit, causing the suspended unit to bear against the face of the building.
brake, primary: a brake designed to be automatically applied whenever power to the prime mover is interrupted or discontinued.
brake, secondary: a brake designed to prevent the descent of the suspended or supported equipment in the event of an overspeed condition.
brake types
disc: a brake in which the holding effect is obtained by frictional resistance between faces of rotating discs or shoes.
self-energizing band: a unidirectional brake in which the braking action is obtained by frictional resistance between a stationary flexible brake band and a rotating drum, whereby the friction force increases the holding force or pressure on the friction surfaces.
shoe brake: a brake in which the holding effect is obtained by applying pressure on two or more stationary segmental friction elements against a rotating cylindrical wheel or drum.
wire rope engaging: a brake that grips onto a wire rope, without damage to the rope, to prevent the descent of a suspended unit.
building: a structure wherein people may live, work, or otherwise make use of the facilities offered within the structure.
building face roller: a guide roller designed to ride on the face of the building wall to prevent the suspended or supported equipment from abrading the face of the building.
building maintenance: exterior or interior operations such as window cleaning, caulking, metal polishing, reglazing, and general light maintenance or repairs on building surfaces.
cable: a conductor, or group of conductors, enclosed in a weatherproof sheath, which may he used to supply electrical power or control currents for equipment and to provide voice communication circuits.
carriage: a wheeled vehicle used normally for the horizontal movements and support of equipment.
catalog strength: the rated strength of any product or material as designated by its manufacturer or vendor, based on standard testing procedures or acceptable engineering design practices.
certified: accepted by design, evaluation, or inspection by a registered professional engineer.
combination cable: ropes having both steel structural members for support of the equipment and copper or other electrical conductors insulated from each other and the structural members by nonconductive barriers
continuous pressure: the requirement for a constant manual actuation of an operating control or device.
control: a mechanism used to regulate or guide the operation of the equipment.ASME A120.1 pdf free download.