ASME B30.19-2005 pdf free download.Cableways Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings
ECTION 19-0.1: SCOPE OF B30.19 Within the general scope defined in Section I of the Introduction, thescope ofB30.19 appliesto allloadtransporting, hoisting, and lowering cable-supported sys- tems operating on and supported from track cable(s).
his Standard does notapply to skyline systems, as used in the logging industry, or slackline systems used for excavating. SECTION 19-0.2: DEFINITIONS 19-0.2.1 Types of Cableways fixedcableway: a cablewayconsistingoffixed (nonluffing) towers (masts) that support the track cable(s).
The lower and upper load blocks are supported by a carriage pow- ered by inhaul and outhaul ropes to travel on the track cable(s). The functionis to lift, lower, and transportloads a distance between the towers (see Fig. 1). luffing cableway: a cableway similar to a fixed cableway except the towers (masts) are not fixed. By the use of powered luffing guys, the towers (masts) can be leaned in either direction transverse to the track cable(s) span, providing a lateral movement of the load block (see Fig. 2).
parallel cableway: a cableway similar to a fixed cableway except the towers are supported by wheels that are powered for lateral movement on parallel tracks (see Fig. 3). radial cableway: a cableway that has a fixed (nonluffing) tower and a tower supported by wheels powered for travel on a track that follows an arc at a radius about the fixed tower (see Fig. 4).
19-0.2.2 General accessory: a secondary part or assembly of parts that contributes to the overall function and usefulness of the machine. administrative or regulatory authority: governmental agency, or the employer in the absence of governmental jurisdiction. appointed: assigned specific responsibilities by the employer or the employer’s representative.
authorized: approved by a duly constituted administra- tive or regulatory authority. brake: a device, other than a motor, used for retarding or stopping motion by means of friction or power.
button line: a rope suspended between the top of the cableway towers to position the slack carriers at predetermined locations as the trolley moves longitudinally along the track cable. The button line is normally above and clear of the track cables.
The buttons attached to the button line are of varying sizes to permit some of the slack carriers to pass by while stopping the carrier designated for that location. cab: a housing provided for the operator in which the cableway controls are contained.
cableway: a device used for hoisting, lowering, and trans- porting loads within a prescribed path, longitudinally and laterally. The load block (upper) travels on a rope catenary system having span ends that are supported on fixed or movable towers (masts) or other elevated supports.
carriage (trolley): a framework that travels by its sheaves (wheels) on the track cable(s) and includes the upper load block.
designated: a person selected or assigned by the employer or the employer’s representative as being competent to perform specific duties.
designer (original): the qualified person or persons desig- nated to design the components of a cableway for a given set of circumstances relating to, but not limited to, capacity, span, height, and terrain (also, see manufacturer).
designer (other than original): the qualified person or persons designated to modify the design or arrangement of an existing cableway to a new set of circumstances.
design factor, rope: the ratio of nominal breaking strength to working load. drift: the act of pulling or pushing the lower load block or load horizontally by means of an external force.ASME B30.19 pdf download.ASME B30.19-2005 pdf free download
