ANSI API Spec 17E-2010 pdf download.Specification for Subsea Umbilicals.
3.1.5 bend stiffener device for providing a localized increase in bending stiffness, preserving the minimum bend radius of the umbilical under defined bending moment conditions NOTE The stiffener is usually a moulded device, sometimes reinforced, depending on the required duty, applied over the umbilical. It is sometimes referred to as a bend strain reliever (BSR). 3.1.6 bird-caging phenomenon whereby armour wires locally rearrange with an increase and/or decrease in pitch-circle diameter as a result of accumulated axial and radial stresses in the armour layer(s) 3.1.7 bundle laid-up functional components and associated fillers in the umbilical prior to further processing NOTE Typical functional components in a bundle include hoses, tubes, electric cables, optical fibre cables. 3.1.8 capacity curve curve that defines the relationship between the allowable bend radius and allowable tension for an internal pressure condition See Figure 1. NOTE Curves can, therefore, differ for storage, testing, installation and operation scenarios. 3.1.9 carousel storage container that can be rotated by a drive about a vertical axis 3.1.10 caterpillar device that holds the umbilical between belts or pads and which transfers axial linear motive power to the umbilical NOTE A caterpillar is also known as an in-line cable engine, or haul off, or tensioner. 3.1.11 characterization data data relating to a component or an umbilical giving an indication of performance but not giving specific acceptance/rejection criteria
ISO 13628-8, Petroleum and natural gas industries — Design and operation of subsea production systems — Part 8: Remotely Operated Vehicle (ROV) interfaces on subsea production systems ISO 8308, Rubber and plastics hoses and tubing — Determination of transmission of liquids through hose and tubing walls IEC 60228, Conductors of insulated cables IEC 60502-1, Power cables with extruded insulation and their accessories for rated voltages from 1 kV (U m ? 1,2 kV) up to 30 kV (U m ? 36 kV) — Part 1: Cables for rated voltages of 1 kV (U m ? 1,2 kV) and 3 kV (U m ? 3,6 kV) IEC 60502-2, Power cables with extruded insulation and their accessories for rated voltages from 1 kV (U m ? 1,2 kV) up to 30 kV (U m ? 36 kV) — Part 2: Cables for rated voltages from 6 kV (U m ? 7,2 kV) up to 30 kV (U m ? 36 kV) IEC 60793-1-1, Optical fibres — Part 1-1: Measurement methods and test procedures — General and guidance IEC 60793-2, Optical fibres — Part 2: Product specifications — General IEC 60794-1-1, Optical fibre cables — Part 1-1: Generic specification — General IEC 60794-1-2, Optical fibre cables — Part 1-2: Generic specification — Basic optical cable test procedures EN 10204:2004, Metallic products — Types of inspection documents ASTM A240, Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products ASTM A480, Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip ASTM A789/A789M, Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service ASTM A1016/A1016M-04A, Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel and Stainless Steel Tubes ASTM E8/E8M, Standard Test Methods for Tension Testing of Metallic Materials
3 Terms, abbreviated terms and definitions 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 allowable bend radius minimum radius to which an umbilical, at a given tension, may be bent to without infringing design criteria or suffering loss of performance See Figure 1. NOTE 1 The bend radius is measured to the centreline of the umbilical. NOTE 2 Allowable bend radius increases with increasing tensile load and varies depending on internal pressure and condition, i.e. safety level. 3.1.2 allowable tensile load maximum tensile load that an umbilical, at a given bend radius, can be loaded to without infringing design criteria or suffering loss of performance See Figure 1. NOTE Allowable tensile load decreases with decreasing bend radius and will vary depending on internal pressure and condition, i.e. safety level. 3.1.3 ancillary equipment accessory to the umbilical system that does not form part of the main functional purpose EXAMPLES Weak link, buoyancy attachments, I-tube or J-tube seals, VIV strakes, centralizers, anchors external clamps. 3.1.4 bend restrictor device for limiting the bend radius of the umbilical by mechanical means NOTE A bend restrictor typically is comprised of a series of interlocking metallic or moulded rings, applied over the umbilical. It is sometimes referred to as a bend strain reliever (BSR).