PWHT is ommited by the use of FM fileEN 1090No requirements per standard for standard Carbon steel DNV standards:DNV-OS-C101:Special areas with material thickness >50mm DNV-OS-ST-0126Steel ≥420MPa, Special areas, thickness >50mmNo deviation from assumptions, Depending on MWS often following standard: DNVGL-ST-N001, Fabrication according EN 1090-2 or DNV-OS-C401Access on SMU yards !Smulders code of conduct) has to be signed by client rep. And, therefore to be included in the contract.Design T < -10°C for DNV design not to be accepted For BSH design <-15°C as reference temperature to be discussed.Design of welded connections FP vs Full strenghtCrosschecking of NDT by Employer can be accepted if following cases can be agreed:, Always in presence of Smulders Level 3, Testing will be performed following project NDT procedures and same, equipment/calibration/reference blocks., Testing will not have an influence on the production flow !e.g. It is not acceptable to have crosschecks performed in blast shop)., Cost is to be borne by EmployerFabrication tolerances for Flanges of TPs ==> always to be discussed with planned, fabrications location., No acceptance on tolerances without approval of planned fabrication sites.Test criteria for CTOD testing more stringent than:, Test temperature <-10°C, CTOD value >0,15 !to be checked 0,25 can be possible).CTOD is a specific test to determine thoughness of a welded connection., Fabrication according EN 1090-2 !Design according Eurocode) ==> no CTOD applicable as, this is not included in Euro code and/or EN1090-2 standard, Design / fabrication according DNV-OS-C401 ==> CTOD possibly neccesary due to:, Ommiting of PWHT if required through fabrication/design standard, Increase of impact test temperature to -40°C instead of -60°C, Required for design standard: special area / design T <10°C / one of the members, SMYS>420MPa, Engineering critical analysis is always to be excluded from contract priceIf DIN 18088-3 is specified, to assure artic material is not specified and/or design should be, above -10°Agreements notifications periods to be agreed up front and to be in line with Smulders way of working. !ref to statement).Deviation from Guarantee conditions between IP and Tenderer standard agreements- The contract shall include arrangements with regard to Fly rust., - Preventive measures shall be taken during cutting, welding and grinding in the yards., - The entire surface of all WTG foundations shall be cleaned prior to Take-over by means of, high- pressure water cleaning with warm tap water or demineralized water, - An option will be included in the Contract for additional cleaning services / The contract, shall include a contract option for additional cleaning of WTG foundations / Fixed unit rates, for CTV will be included in the contract, - Contractor shall not accept any reservations on the take-over certificate with regard to fly, rust., - Superficial fly rust shall not be considered a coating defectmanufacturers recommendations.This should be discussed and the Holiday test statement should be added to the tender review comments for discussion. Tendererlders has a Hoilday test procedure .This test procedure is in line with our paintThe contract price shall be based on a specific type of pile gripper., The Contract shall include a reservation for other suitable means if these are required to accommodate the installation window of the T&I installer.Smulders will work with NDT procedures which have been reviewed and agreed by external, 3rd party it is expected these can be followed without further requirements. All extra, requirements to be excluded from contract price, If fabrication as per DNV-OS-C401:, DNVGL-CG-0051: Non-destructive testing ==> all NDT techniques, If fabrication as per EN1090-2, Different standards per NDT-technique, Purpose is to follow what is given in the standards.Project specific calibration blocks to be used for the project, DNVGL-CG-0051:, a general-purpose block of uniform low attenuation and specified surface finish, and, having a thickness within ± 10% of the test object a block of the same acoustic properties, surface finish, shape and curvature as the test, object., ISO 16811: a general-purpose block of uniform low attenuation and specified surface finish, and, having a thickness within ± 10% of the test object, a block of the same acoustic properties, surface finish, shape and curvature as the test, object.Hold times exceeding times as per standards should not be accepted, for DNVGL projects it, should be agreed that the reduced hold time to 24hours as per standard is agreed., For Repairs no hold time to be allowed for steels with SMYS <360MPa, When Fabrication is to be perfomred as per EN 1090-2 ==> hold times of table 23 of the EN 1090-2 to be, applicable without exception., The hold time for NDT is implemented to detect possible delayed cracking within welds. Delayed cracking !HIC/cold cracking) occurs in welds due to a combination of 3 factors !Hydrogen, high hardness and high, internal stresses) coming together in the weld. Smulders takes the necessary action to limit the occurence of, these factors as much as possible and No issues with delayed cracking have occured in the latest projects executed by Smulders., This delayed cracking of welds has no relation to the standard weld defects related to the process, welder,... and therefore there is no relation with a standard defect rate and applicable hold time for NDT., Statement document R-TI-GR-301 can be used to provide to employer to agree on reduced hold time.Radiographic testing can't be replaced by manual or recorded UT is not to be accepted, !note: exception is made for bridges, where this is a requirement of the standard, if not, acceptable by employer cost to be taken into account)., DNV-OS-C401:, 2) RT is required. RT may be partly or wholly replaced by UT upon agreement. For hull, welds the minimum length inspected by RT is typically 300 mm. Consideration may be given for reduction of inspection frequency for automated welds where quality assurance, techniques indicate consistent satisfactory qualityFull reporting of VT, MT or PT repairs to be reported is to be avoided.Ball size of gratings + gap with wall should be in line with the applicable standards,, deviations from the standard should be checked if practically feasible., Safety of machinery - permanent means of access to machinery, ISO 14122-2: Working platforms and walkwaysQualified personnel to be in line with fabrication standards, no seperate qualifications should be accepted without agreement.No maximum amount of people supervised by one supervisor should be allowed. Smulders should be able to organize it's production supervision without limits.Seafastening that has to comply to project requirements and not standard rules ==> Seafastening should be fabrcated as per DNV or EN standardWhy preheat:, Limit the chances on cold cracking of the welds, Linked to through thickness quality of the material Avoid High hardness in weld area (mainly HAZ) - WPQRs, Based on CTOD qualification of base material The EN standard EN-1011-2 describes 2 methods !A and B), Both methods depend on different parameters of the connection. Method A, mainly used for the normal and high strength steels !up to SMYS of 420MPa) Method B, Extra high strength steelWelding is a special process ==> Destructive testing only way to be 100% sure, Fabrication standards e.g. EN, DNV, AWS,... ==> qualification of weld process based on:, -Ranges on material !thickness, Heat-input, diameters, material grade, etc...), -Which tests to be performed, -How to document .-,.., These are based theoretical models and on experience gained over the years from the experts in norms and standard commissions., To give as much as possible assurance on the quality of the welds !together with NDT)., Amount of WPQRs to cover a WPS will not be limited.traceability more stringent than:, Special steel:, Material related: Unique traceability, Welding related: traceability with RC containing following info: welder, WPS, welding, consumable, NDT data, Primary steel:, Material related: full !not unique) traceability Welding related: traceability with RC containing following info: Welder, WPS, NDT data, Secondary steel:, Material related: grouped traceability, Welding related: mentioning of Welders on DWG, Report with highlighted drawing for NDT., Traceability of welds of secondary steel against primary steel to be treated as secondary, steel !exception is made for welds of secondary steel items against the primary steel cans, of a TP foundation)., Tertiary steel:, Material related: traceable back to supplierd, Welding related: no traceability only if NDT is performed.Extent of NDT beyond as specified within standards ==> extra cost to be calculated., The extra extent is to be given on project specific level by TE reviewer., - Extra NDT on secondary or primary steel then specified in fabrication standards. - UT inspection on FW/PP welds, -...Permanent backing strips should at least be accepted for non fatigue critical welds !e.g., Secondary steel)., EN 1090-2:, Allows the use of permanent backing strips with following restrictions on the backings strip:, CEV, Location of tack welding, Backing strip to be continuous, DNV-OS-C401:, The use of permanent steel backing strips may be accepted after thorough corrosion evaluation and when accounted for in the design analysis with resepect to fatigue:, ==> Focus is mainly on fatigue: fatigue classes, Butt weld one side without backing 0 class W3, Butt weld one side with backing 0 class FThe Contract/MDR] shall include a defined timescale for when these, Procedures/Methode Statements/Contractor's documents] will be in place and this must, be prior to any fabrication/manufacturing/installation activities commencing., Said timescale will include adequate time for the Employer to review such procedures, but, will be linked to a strict deadline as not to hamper Contractor's production schedule., Specific timescales will be included in the contract for, but not limited to, reviews by a certification body and a marine warranty surveyor. ! more than 28 days to be flagged), The principle of exhaustive commenting shall apply during the approval process of the documents, If the Employer fails to review the documents within the stated timescale over 4 weeks ,, the document will be deemed to be accepted without any comments., Contractor may proceed with the fabrication/manufacturing/installation activities relating, to parts of the documents that is not rejected.Waiting time in standard includes VT inspection but on our scope of work the VT inspection, will not be different after welding and after 48 or 24 hoursIF an EN project TKY joint is not clear how the weld volume shoud be. AWS D1.1 to be, includedIf design is done by client, designer is responsible for O&M for structural items.Design constraints ==> Follow-up by Smulders, -Thickness class C for secondary steel or lower or for primary steel in small batch !e.g., Batches too small to order from mill) can't be accepted as this is almost not available on, the market., -Z-quality of steel to be specified by the designer and should only be applied where, specifically required for design technical reason. It should not be the purpose that Z-steel is required everywhere., -Fatigue classification welds and holes should take into account possible repairs, a method, should be agreed up front !e.g. Weld repair or increasing the cut-out size).Use of a Project completion tool, used to keep track of status of each tagged item in a, project, including technical information for the tags. !e.g. ProCoSys)Requirement to have traceability of preheat values for certain steel categories;Document related to inspections !e.g. NDE-reports, Dimensional reports) should only be, available at certain inspection steps !e.g. Black steel inspection). We can't guarantee that, reports like NDE or Dimensional reports can/will be provided to Employer x hours after, inspection.Use of temporary attachments with regards to allowed locations and traceability., The use of temporary attachments should be standardly allowed with exclusion of certain, areas. The purpose should be that on the design drawings designer clearly marks the, locations where temporary attachements are not acceptable., Full traceability of temporary attachements to be avoided, this can be accepted for special steel but for primary or lower category, only NDT report after removal to be provided, without traceability of locationsRequest RCA for each NC's, No more deviation request to client ! because this is deviation to ISO 9001), Project NCR's -> If specifically requested by the client follow detail RCA process ! 8D, 5 Why etc) ., ->If not keep simple and use NCR report template ! 1 text box)Client defines to follow APQP4 Wind system. Possible to implement but time consuming and costly.Smulders will work based on the project audit plan which is expected to be prepared prior, to execution of the process. In this project audit plan all sub-contractor audits will be, defined including the timeline. Any strict requirement than mentioned in Standard SMU way would have impact in planning/personal availabilityAll loose stainless steel items require a coating in order to have the same colour coding as, the areas around it or have anti-skid requirements., For anti-skid some projects require a painted anti-skid surface which is costly and time, consuming with a lot of discussion on the required finished quality: blasting of the surface,, sharp edges around bolt holes,...EN ISO 12944, NORSOK M-501, VGB/BAW-Standard, EN 1090-2, DNVGL-OS-C401, ISO 19840, Huge number of related standards !, The standards define as requirement on coating :, 1) A minimum number of coatings !MNOC) often depending on the coating type !EP, PU,, Zinc Primers, ..), 2) A minimum DFT for the complete system !sometimes also for primer), 3) Max. DFT in relation to the NDFT !i,.e. 3 x NDFT acc. ISO 12944), 4) Probably a special certification of the coating system !always for offshore coatings)Coating standards describe the following requirements:, Norsok M-501:, "Paints and coating materials shall be applied to the abrasive blast cleaned surfaces before, any oxidation appears. Surfaces that show visible oxidation or deterioration shall be re-, blasted to the required grade." But no specific time limitation is indicated in the Standard., But no specific time limitation is indicated in the Standard., EN ISO 12944: No specific time limitation is described., VGB/BAW: The first coat of the coating system should be applied as soon as possible after blasting.Norsok M501 Section 4.4 states:, No final blast cleaning or coating application shall be done if the relative humidity is more, than 85 % and when the steel temperature is less than 3 °C above the dew point. Coating, shall only be applied or cured at ambient and steel temperatures above 0 °C., VGB-S-021-03-2018-04 Section 3 for surface preparation states the following:, During blast cleaning work the following climatic conditions shall be observed:, Ambient and object temperature > +10 °C and < +30 °C, Relative humidity < 60 % up to the completion of application of the first coating film;, thereafter < 80 %, Dewpoint distance >3 K !Verification by continuous measurement of ambient temperature, and humidity, and object temperature must be checked by individual measurements, at, least every 3 hours)