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API Spec 2C-2004 pdf free download

API Spec 2C-2004 pdf free download.Specification for Offshore Pedestal Mounted Cranes.
3.1.14 boom hoist: See Section 8.2 and its sub-sections. The hoist mechanism responsible for raising and lowering the boom. 3.1.15 boom hoist mechanism: Means for supporting the boom and controlling the boom angle (see Figure 1, item 4). 3.1.16 boom hoist wire rope: Wire rope that operates on a drum controlling the angle positioning of the boom (see Figure 1, item 5). 3.1.17 boom lacing: Structural truss members at angles to and supporting the boom chords of a lattice type boom (see Figure 1, item 6). 3.1.18 boom length: The straight-line distance from the centerline of boom foot-pin to the centerline of the boom- point load hoist sheave pin, measured along the longitudinal axis of the boom. 3.1.19 boom lift-cylinder: Means for supporting the boom and controlling the boom angle (see Figure 1, item 7). 3.1.20 boom line: Boom hoist rope that reels on drums or passes over sheaves. See boom hoist wire rope. 3.1.21 boom-point sheave assembly: An assembly of sheaves and a pin built as an integral part of the boom-point (see Figure 1, item 8). 3.1.22 boom splices: Splicing connections for sections of basic crane boom and additional sections usually of the splice plate type, pin type, or butt type (see Figure 1, item 12). 3.1.23 boom stop: A device used to limit the angle of the boom at the highest recommended position (see Figure 1, item 13). 3.1.24 boom-tip extension: See jib (see Figure 1, item 14). 3.1.25 brake: A device used for retarding or stopping motion or holding. 3.1.26 bridle: See floating harness (see Figure 1, item 17). 3.1.27 cab: An enclosure for the operator and the machine operation controls (see Figure 1, item 15). 3.1.28 clutch: A means for engagement or disengagement of power.
3.1.31 C v : Vertical design coefficient that is multiplied by the Safe Working Load (SWL) to provide the vertical design load. 3.1.32 designated: Selected or assigned by the employer or the employer’s representative as being qualified to perform specific duties. 3.1.33 design load: The vertical design load is equal to the SWL times the vertical design coefficient C v . Other loads considered in design of the crane include offload, sideload, environmental loads, loads due to crane base motion, and other loads as defined herein. 3.1.34 design requirements: The requirements set forth by the manufacturer’s engineering authority for materi- als, manufacturing, fabrication, and inspection procedures to be employed in the production of the crane. 3.1.35 dynamic loading: Loads introduced into the machine or its components due to accelerating or decelerat- ing loads. 3.1.36 enclosure: A structure that may provide environ- mental protection for the machine. 3.1.37 fitness-for-purpose: The manufacture or fabri- cation of an assembly or component to the quality level required (but not necessarily the highest level attainable) to assure material properties, environmental interactions, and any imperfections present in the assembly or connection are compatible with the intended purpose. Fitness-for-purpose connotes an assembly or component may contain material or fabrication imperfections of sizeable dimensions but their presence has no influence on its performance or reliability. 3.1.38 fixed platform: A bottom supported, stationary structure without significant movement in response to waves and currents in operating conditions. Examples are fixed plat- forms with jacket and pile supports, jack-up rigs, and sub- mersible bottom-supported rigs. 3.1.39 floating harness (also known as bridle): A frame equipped with sheaves and connected to the boom by stationary ropes usually called pendants (see Figure 1, item 17).
3.1.43 gantry (also known as A-frame or mast): A structural frame, extending above the upper-structure to which the boom support ropes are reeved (see Figure 1, item 18). 3.1.44 guy rope: A non-operating, standing wire rope that maintains a constant distance between the points of attachment to the components connected by the wire rope. 3.1.45 hoisting: The process of lifting. 3.1.46 hoist mechanism: A hoist drum and rope reev- ing system used for lifting and lowering loads. 3.1.47 hoist rope: Wire rope involved in the process of lifting. 3.1.48 hoist tackle: Assembly of ropes and sheaves arranged for pulling. 3.1.49 hook block: Block with a hook attached used in lifting service. It may have a single sheave for double or triple line or multiple sheaves for four or more parts of line (see Figure 1, item 19). 3.1.50 hook rollers: Rollers that prevent the lifting of the revolving upper-structure from the roller path. Hook rollers are a means to connect the upper-structure to the foundation or pedestal.

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