Wire rope sling manufacture for the offshore industry in Angola for the offshore industry in Angola 1 February 2012
Table of content 1. Presentation 1. Presentation 2 2. Review of norms and standards Review of norms and standards 3. How to chose a lifting set ? 3 Ho to chose a lifting set ? 4. Our range of services 5. FAQ Contact: 2 2 operations2.angola@friedlander-international.com +244 923 678 609
Our Organization ORTEC Group Key Figures 5600 employees worldwide 5600 employees worldwide 900 M$ turnover Present on over 300 client sites 18 subsidiaries in 15 countries 80 establishments in France Main activities: Main activities: Maintenance Construction works Environment E i t Energy Engineering Industrial cleaning I d t i l l i 2 branches in Angola since 1997 For more information go to www ortec fr For more information, go to www.ortec.fr Contact: 3 3 operations2.angola@friedlander-international.com +244 923 678 609
Our Organization FRIEDLANDER Angola: our activities Piping Works (Oil & Gas and Industry): Fabrication and Installation Supports and Structures: Fabrication and Installation EPCC Contracts for Onshore and Offshore M i t Maintenance: Routine jobs R ti j b Well Jumpers, Subsea Structures: Fabrication at quay side Sea fastening Procurement Shut Downs: Preparation and site work For more details contact our General Manager: direction angola@friedlander-international com For more details, contact our General Manager: direction.angola@friedlander-international.com Contact: 4 4 operations2.angola@friedlander-international.com +244 923 678 609
Our Organization ORSLING history 1997:Creation of FRIEDLANDER Angola 1997:Creation of FRIEDLANDER Angola Onshore and offshore activities for Oil & Gas Fabrication of DNV 2.7-1 certified equipments q p Need for corresponding lifting sets 2007: Creation of ORSLING (as brand belonging to FRIEDLANDER Angola) in order to respond internally to the need End of 2010: Fabrication workshop moved with f FRIEDLANDER new construction yard within SONILS base 5 people permanent team Contact: 5 5 operations2.angola@friedlander-international.com +244 923 678 609
Basic definitions Components of a lifting set 1 l 1 leg sling li 4 l 4 legs sling, with shackles li ith h kl Top link (triple) p ( p ) Soft eye termination Hard eye termination (without thimble) (with thimble) Marking plate 2 legs sling, with hooks Wire rope Top link (simple) Ferrule Thimble Shackle Contact: 6 6 operations2.angola@friedlander-international.com +244 923 678 609
Basic definitions Technical terms WLL: (Working Load Limit) maximum weight that the accessory is allowed to lift (in metric tons or WLL: (Working Load Limit) maximum weight that the accessory is allowed to lift (in metric tons or in kg) BL: (Breaking Load) minimum force needed to break a cable (in N or in kN) Rating: Total mass of a container without the lifting set (= Tare + Payload) R ti T t l f t i ith t th lifti t ( T + P l d) Tare: Mass of the container when empty Payload: Maximum mass that can be transported by a container (P= R-T) Fore runner / top leg: Single leg sling used to elongate a 4 legs sling (the assembly can be referred as 5 legs sling), often used for DNV 2.7-1 lifting set fabrication to allow the top link to arrive at the correct elevation Angle: Unless otherwise notified, the angle used to define a sling is always the angle between one leg and the vertical (in degrees) Swaging: Method of assembly by pressing a ferrule containing the cable between dyes of Swaging: Method of assembly, by pressing a ferrule containing the cable between dyes of specific dimensions DAF: (Dynamic Amplification Factor) Enhancement factor of the WLL to take the movement of the load into account load into account Contact: 7 7 operations2.angola@friedlander-international.com +244 923 678 609
Basic definitions Applicable norms and standards Di Dimensioning and fabrication: i i d f b i ti DNV 2.7-1 Standard for certification of offshore containers EN 12079 2 EN 12079-2 E European Norm (copy of DNV 2.7-1) N ( f DNV 2 7 1) DNV 2.7-3 Standard for certification of portable offshore units EN 13414-1 EN 13414 1 European Norm for wire rope sling manufacture European Norm for wire rope sling manufacture Choice of accessories: EN 13411-3 European Norm for swaging and choice of thimble EN 1677 European Norm for component for slings EN 13889 European Norm for shackles EN 12385 European Norm for steel wire ropes Contact: 8 8 operations2.angola@friedlander-international.com +244 923 678 609
Table of content 1. Presentation 1. Presentation 2 2. Review of norms and standards Review of norms and standards 3. How to chose a lifting set ? 3 Ho to chose a lifting set ? 4. Our range of services 5. FAQ Contact: 9 9 operations2.angola@friedlander-international.com +244 923 678 609
DNV 2.7-1 / EN 12079-2 review Limitations: Maximum rating is 25T The DNV 2.7-1 standard corresponds only to offshore containers p y fabrication, but the part concerning the lifting sets is often used as reference for the fabrication of slings for other offshore equipments Enhancement factor to be applied for the calculation of the WLL (see table 8-1 at right side) Minimum WLL = 7 000 kg Certified process of fabrication Top link dimension: recommended > 270 x 140mm When unloaded, the top link must not be above 1300mm from the p floor Maximum angle of a sling with vertical = 45° The shackles from a lifting set can not be separated from the g p sling Hard eye assembly only Specific marking Specific marking Contact: 10 10 operations2.angola@friedlander-international.com +244 923 678 609
EN 13414-1 review Limitations: Wire rope sling fabrication, from 8 to 60mm Specific marking p g Swaging conform to EN 13411-3 WLL to be calculated for angles from 0° to 45° from vertical (and from 45° to 60° for some specific assemblies) p ) The weakest part must be the cable, not the top link Shackles must have higher WLL than the leg they are connected to Calculation of the WLL for usual cases: Calculation of the WLL for usual cases: For 1 leg sling: WLL = (BL min x K T ) / (g x Z P ), with: BL min = Minimum Breaking Load of the cable (given by the supplier) Z P = 5 (safety factor) g = 9.80665 N/kg K T = termination coefficient (0.9 for swage assembly) For multi legs sling: WLL = (BL min x K T x K L ) / (g x Z P ), with: K L = coefficient for leg number and angle = N legs x cos( β ), with β = 45° K L = 1.4 for 2 legs slings, and KL = 2.1 for 3 and 4 legs slings (4 legs slings are calculated as 3 legs slings) Contact: 11 11 operations2.angola@friedlander-international.com +244 923 678 609
Table of content 1. Presentation 1. Presentation 2 2. Review of norms and standards Review of norms and standards 3. How to chose a lifting set ? 3 Ho to chose a lifting set ? 4. Our range of services 5. FAQ Contact: 12 12 operations2.angola@friedlander-international.com +244 923 678 609
How to chose a lifting set ? Number of legs: Number of legs: Given by the design of the equipment to lift Requested certification Offshore or onshore ? One time lift for installation or movable equipment ? Company specifications Company specifications Calculation of the minimum WLL of the sling Weight of the equipment to lift DAF to apply (generally given by Company specification) Example: in TOTAL specifications, DAF = 1.30 for offshore lifting (<150T), and DAF = 1.10 for onshore Use of a spreader bar: Use of a spreader bar: Can lower the stress on the equipment during lifting Can reduce the length of the sling Can allow better control of the lifting (especially useful for subsea equipments) C ll b tt t l f th lifti ( i ll f l f b i t ) May modify the stability of the equipment (to be checked in every particular case) Must be subject to specific calculation note j p Contact: 13 13 operations2.angola@friedlander-international.com +244 923 678 609
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