Primary Load

Axial load to which the equipment is subjected in operation.

Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards


Primary Load

Load which is independent of structural deformation in the riser and induces an internal force that is necessary to satisfy the laws of static equilibrium. NOTE The internal force acts as long as the load is applied, and does not diminish when yielding occurs. EXAMPLE Internal pressure, external hydrostatic pressure, self-weight, contents and buoyancy of the riser.

Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards


Primary Load

Load that arises within the equipment when the equipment is performing its primary design function.

Source: API SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). Global Standards

Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards


Primary Load

Axial load that equipment is subjected to in operations.

Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards

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