Procurement Engineering Standard Purchase Clause

Transcription

1 1.0 QUALIFICATION BY ANALYSIS This EQPR is intended to be used when buying Velan ball valves and valve assemblies, Actuatec and Tesam actuators and spare parts manufactured and supplied by Velan Inc. (hereinafter Velan) for use throughout Ontario Power Generation (hereinafter OPG) nuclear sites in safety-related applications which require environmental qualification (EQ). OPG Engineer (see the Contract Standard for definition of Engineer ) generally assesses and qualifies electrical equipment for use in EQ applications by conducting qualification tests (or referring to qualification tests performed by others) whereas mechanical items are generally qualified by analysis. Once it has been established that an item is environmentally qualified (EQ), it is necessary to ensure that successive purchases of the item will be equivalent to the qualified item. In order to do so, it is necessary to clearly establish the critical characteristics of the qualified item so that these can be need to be replicated and verified. These critical characteristics may be shown on one or more of a number of different documents including the manufacturer s catalogue, manufacturer s drawing(s), test reports, qualification reports, bill(s) of material, specification(s) or even official correspondence, etc. So as not to limit the generality of the foregoing list, the document that describes the critical characteristics that need to be replicated shall be referred to herein as the primary controlled document. For EQ materials it is essential that the primary controlled document clearly identifies the materials of construction as well as other critical characteristics of the item. See EPRI NP-5652 and TR for a more detailed explanation of critical characteristics. The primary controlled document shall be selected by OPG Engineer and stipulated in OPG purchase order (P.O.) item description. In every instance, the content of the primary controlled document shall be under rigorous revision control. In instances when the primary controlled document defines most but not all critical characteristics, and in instances when the primary controlled document provides configuration or material selection options, the required characteristic or material option(s) shall be stipulated in the OPG purchase order (P.O.) item description. Velan is advised that the item shown in the OPG P.O. item description has been assessed and qualified by the OPG Engineer for use in nuclear safety-related applications based on the primary controlled documents referenced in the OPG P.O. item description. All the items and spare parts are to be supplied in accordance with the requirements of the OPG Design/technical specifications referenced in the OPG P.O. item description. If there is no primary controlled documents referenced in the item description Velan is to contact the OPG Buyer for further direction. If there is a discrepancy between the primary controlled document, OPG specification data sheet and the required item description, Velan shall contact the buyer for resolution, using the forms referenced in section 2.0 below. 2.0 CHANGES IN DESIGN AND SUBSTITUTION OF QUALIFIED MATERIALS Changes made since the items and spare parts were previously assessed and qualified by OPG are to be tracked. Velan shall notify the OPG in the event that changes take place in the following areas: design of the product, material/compounds used, manufacturing methods, non-destructive testing procedure, and test reports. Some changes, which may appear insignificant and not deem to be reported to the client (since fit, form, and function are met), can invalidate the equipment nuclear performances. Changes to non-metallic components are of particular interest to OPG. Velan shall ensure contractual provisions and QA program requirements imposed on suppliers and sub-suppliers are such that Velan will be notified of any such changes that may occur within the supply chain. If any of these changes take place then Velan shall notify OPG Buyer using the Vendor Parts/ Material Substitution Control form N- Form during bidding or the Concession Application form N-Form subsequent to contract award. This clause applies to purchase orders placed on or after August 20, Page 1 of 7

2 As an alternative to the preceding paragraph, Velan shall notify OPG Buyer, using the same forms, if for any reason it is unable to provide assurance that there have been no such changes since the item was originally evaluated/ tested for use in a nuclear safety application. OPG Buyer will forward all such notifications to the Design Authority in OPG. The responsible Design Authority shall make all decisions relating to the need to re-evaluate and/or re-test and the item. Although the Design Authority may solicit Velan s input to the decision, the decision of the Design Authority will be final. Velan is advised that: These items and spare parts shall be installed in a nuclear safety system and the system shall be required to operate following a very unlikely but theoretically possible Design Basis Accident. If such an accident occurred, these valves, actuators and spare parts could be subjected to a harsh environment consisting of chemical and pressure transients, radiation, steam, elevated temperature and pressure, or submergence. It is possible that the Design Basis Accident could occur at a time when these valves, actuators and spare parts have already been subjected to many years of normal operation and are nearing the end of their useful operating life. These valves, actuators and spare parts have been rigorously evaluated and/or tested, and OPG Engineer expects that they shall perform their intended safety function following exposure to this harsh environment. OPG Environmental Qualification Assessments (EQAs) have established that these valves, actuators and spare parts may not perform their intended safety function if there is a substitution of materials, changes in design, or changes in manufacturing methods. This is especially true for changes or substitutions of non-metallic components used in the construction of these valves, actuators and spare parts. Some non-metallic components are known to be subject to degradation in a harsh environment and can deteriorate quickly when exposed to steam, heat, or especially when exposed to high levels of radiation. OPG Engineer accepts that changes in design, sub-suppliers, materials, and manufacturing methods may be necessary as technology and manufacturing processes change with time. OPG Engineer also accepts that companies may not be able to track all changes that occur over a long period of time. It is the OPG Engineer s objective to minimize unnecessary changes that would necessitate a re-evaluation the ability of these valves, actuators and spare parts to perform their intended safety function following a Design Basis Accident. Even minor changes may dictate the need to retest or re-qualify these valves, actuators and spare parts. In any event, it will certainly dictate the need to evaluate the effect of the change, and a revision to the EQA to ensure that the new valves, Actuatec actuators and spare parts shall perform the same intended safety function as the valves, and actuators that were previously qualified. The "changes" referred to in this section are interpreted to mean any changes in materials of construction, changes in manufacturing processes that affect interchangeability, changes in form, fit and function, or any changes from the original design or performance requirements. Insignificant changes that do not affect any of these criteria (i.e. that do not result in a change in the item part number) are considered to be outside the scope of this requirement. 3.0 QUALITY ASSURANCE PROGRAM FOR ENVIRONMENTALLY QUALIFIED ITEMS For the EQ items that Velan manufacture/supply to OPG, Velan shall implement and maintain a quality assurance program that provides assurance that the design, materials used in construction, methods used in fabrication/construction, non-destructive testing are such that the items meet the design requirements and are equivalent to those originally evaluated and environmentally qualified by OPG. In order to provide this assurance Velan quality assurance program shall meet the requirements of minimum CSA CAN 3 Z299.2/3-1985, including the requirement for product traceability. Traceability is required by this contract, and therefore in accordance with CSA Z299.1/2/ QA standards, Velan shall assign to each product or service or batch a unique identification/unique identifier such as serial number, date code, batch code to distinguish apparently identical products. Non-conformances with a disposition to Repair or Use-as-is require the concurrence of all responsible parties, and submission to OPG for acceptance. This clause applies to purchase orders placed on or after August 20, Page 2 of 7

3 3.2 EQ Nuclear Pressure Boundary Items Velan s quality program as audited/accepted by OPG to the requirements of ASME and CSA Z along with the requirements specified in the purchase order is acceptable to OPG to meet this requirement For ASME Section III materials, the quality program shall meet the requirements of ASME Section III, subsection NCA 3800 or NCA 4000 (where the scope of the quality program includes acting as a material organization), to the code edition and addenda specified in the purchase order. For ASME Section III components, the quality program shall meet the requirements of ASME Section III, subsection NCA 4000, to the code edition and addenda specified in the purchase order. A valid certificate of authorization issued by by an authorized registrar (i.e. ASME, TSSA, other Canadian provincial jurisdiction etc) shall be required, in accordance with the CSA N285.0 standard. All items shall be traceable to the Velan audited location in Montreal, QC, Canada. 3.3 EQ Non-Nuclear Pressure Boundary Items Velan s QA program as audited/accepted by OPG to the requirements of CSA B51 and CSA Z along with the requirements specified in the purchase order is acceptable to OPG to meet this requirement. All items shall be traceable to the Velan s audited location in Montreal, QC, Canada. 3.4 EQ Non-Pressure Boundary Items Velan s QA program as audited/accepted by OPG to the requirements of CSA Z , along with the requirements specified in the purchase order, is acceptable to OPG to meet this requirement. All items shall be traceable to the Velan s audited location in Montreal, QC, Canada. 4.0 INSPECTION AND TEST PLAN AND CRITICAL PROCESS PROCEDURE ACCEPTANCE In accordance with CSA Z299.2/3 QA standards, Velan shall prepare the Inspection and Test Plan (I&TP) document as part of the QA program requirements. A copy of the completed I&TP, signed by the authorized QA representative as a minimum, shall be submitted to OPG with the shipment. However, OPG review and acceptance of the I&TP prior to initiating the work is required only when the Inspection and Test Plan Submission Requirement clause QA-I&TP is specified elsewhere in the OPG Contract P.O. This includes the situation for initial procurement of new items not previously manufactured and supplied to OPG. Velan shall make no significant change to the I&TP, critical process procedures, or NDT procedures without notification to, and acceptance from the OPG Engineer for those changes. This notification is to be received at least 4 weeks prior to the commencement of the work to be changed and shall be accompanied by a detailed description of the planned change (including detailed procedures where applicable). In the event that a delay in receiving OPG acceptance for changes will in turn delay completion of the work Velan is to notify the OPG s Buyer at least one week in advance of the expected delay; in order that OPG Buyer can expedite OPG Engineer acceptance and thus avoid said delay. OPG reserves the right to review these during QA program audit or contract specific inspections in order to satisfy itself that manufacturing and inspection activities are appropriately planned, authorized and controlled. Velan critical process procedures and ITP shall be available for audit by OPG source inspectors. Personnel performing inspection, witnessing or monitoring of item critical characteristics for their acceptance must not be those who have performed the work being inspected or report directly to immediate supervisors responsible for producing the work unless specifically permitted otherwise in the I&T Plan and agreed to in writing by the customer before the contract is let. This clause applies to purchase orders placed on or after August 20, Page 3 of 7

4 5.0 PRESSURE RETAINING ITEMS REGISTRATION WITH AUTHORIZED INSPECTION AGENCY Pressure retaining items are to be registered with an Authorized Inspection Agency (AIA). Piping systems shall be registered by technical standards & safety authority (TSSA), located in Ontario. Pressure vessels, storage vessels, pumps, valves, fittings or supports shall be registered as follows: By TSSA located in Ontario, or By Association of Chief Inspectors (ACI) central located in Prince Edward Island. ACI central provides registration for several Canadian provinces, including New Brunswick. As New Brunswick is the only one of these provinces that has nuclear class installations, registration shall be requested for the province of New Brunswick. Fittings are as defined in CSA N and update 2: clause and Table 1. This registration shall be in accordance with CAN/CSA-N and Update No. 2 and the ASME code and class specified on the OPG Design/technical specification referenced in the OPG purchase order (P.O.) item description Velan shall provide evidence of that registration by way of a Canadian Registration Number (CRN) along with the shipment. For nuclear class 1, 2 or 3 components and materials, Velan shall supply items that meet the requirements of NCA 4000 (for components) or NCA 3800 (for materials). Additionally, in compliance with CAN/CSA-N & Update No. 2, Velan is to provide a History Docket which is to include at minimum: Statutory Declaration, Certified Material Test Report (CMTR) for SST housing material, Certificate of Compliance referencing serial numbers and applicable test data. Code Reconciliation The OPG Engineer reserves the right to identify a list of special process and non-destructive examination procedures that shall be submitted for approval prior to completing the work described on these procedures. The list will be identified at the time that the OPG Engineer reviews the Inspection and Test Plan. In instances where the purchase order identifies that the item is to meet ASME Section III of the code it is understood that the valve may be manufactured in accordance with the latest revision of the ASME code in effect at the time of manufacture. Since Nuclear Power Plants have different applications and require that components be manufactured to different code effective dates, as early as 1974 (summer addendum), Velan shall provide a code reconciliation which identifies any changes to the ASME code effective date reflected on the drawing referenced in the item description shown in the purchase order. This statement shall show that changes to the code have no effect on the design of the component. If a change to the code has impacted the design or manufacture of the item, Velan shall identify that change using the forms noted in Section 2.0 above. 6.0 SEISMIC QUALIFICATION REQUIREMENTS Velan shall demonstrate the seismic qualification for the item(s) is in accordance with the OPG Design/technical specification referenced in the OPG Purchase Order (P.O.) item description. Demonstration of the seismic qualification is permitted by physical testing and/or analysis. For repeat orders of these items, Velan Certificate of Conformance statement that the item supplied is equivalent to the item originally manufactured by the company, Section Certification To Accompany Shipment is deemed to satisfy the requirement for seismic qualification of the items. 7.0 MARKING AND TAGGING OF THE ITEM Wherever possible, each item shall have a permanent corrosion resistant metal tag / nameplate affixed in such a manner that shall not affect the function of the item and shall not come off during accident conditions. Self-adhesive labels and glue are prohibited as they may come off during accident conditions and become sump pump debris. The nameplate shall contain the following information: This clause applies to purchase orders placed on or after August 20, Page 4 of 7

5 Velan name and model number/part number. Velan unique identifier such as serial number, batch/lot control number or cure date/ manufacturer date (to ensure traceability) Date of manufacture. ASME Code Class & Code effective Date (as applicable) Design pressure at design temperature (as applicable). Working fluid. Velan shall provide the following details either on the metal tag described above or on an additional tag attached to the item by a stainless steel wire in such a manner so as not to affect the function of the item: Canadian Registration Number (CRN) (for pressure retaining items only), OPG Catalog ID number As an alternative to attaching a tag, the manufacturer may permanently mark, etch or scribe the above data on the valve and spares. All markings and tagging shall be clear, unambiguous, and indelible. Halogen free markers shall be used on stainless steel products Spare parts do not need to be tagged but shall be shipped in suitable packaging and labeled as outlined below. 8.0 PROTECTION FROM DEGRADATION DURING SHIPMENT OR STORAGE The items shall be individually packaged and protected from degradation during shipment and suitably packaged for long term storage complete with desiccant where appropriate in accordance with ASME NQA-1a-2009, Part ll, Subpart 2.2 Level B. Individual packaging shall provide protection from ultraviolet (UV) radiation. Packaging requirements for level B items are specified in NQA-1a-2009, Part ll, Subpart 2.2 Level A packaging specification defined in section with the exclusion of requirement 302.1(a) (b) Items shall have been inspected for cleanness immediately before packaging. Dirt, oil residue, metal chips, or other forms of contamination shall have been removed by approved cleaning methods. Any entrapped water shall have been removed (c) Items not immediately packed shall be protected from contamination (d) Items requiring protection from water vapor, salt air, dust, dirt or other forms of contamination penetrating the package, shall be packaged with a barrier (e) Items that require protection from damage during shipping and handling shall be packaged in containers or crates (see Para 307 of NQA-1a-2009, Part ll, Subpart 2.2) (f) Items that can be damaged by condensation trapped within the package shall be packaged with approved desiccant inside the sealed waterproof and vapor-proof and vapor-proof barrier or by an equivalent method (g) All openings into items shall be capped, plugged or sealed. Weld end preparations shall be protected against corrosion and physical damage (h) Items packed in containers shall be blocked, anchored, braced or cushioned to prevent physical damage to the item or barrier (i) Items and their container shall be identified by marking. Where sealed packaging is used, the seal is to be such that the items can be removed for inspection and resealed in the same package for long term storage in level B. It is OPG s intention to store EQ materials in level B storage. Since packaging is intended to protect the items and spare parts from degradation during storage, the packaging individual cartons or the packaging shall be clearly marked with the following: This clause applies to purchase orders placed on or after August 20, Page 5 of 7

6 Velan s part and serial number. OPG s Purchase Order number and Line Item number. OPG s Catalog ID number. Date of manufacture. Item shelf life (when applicable) Manufacturer s recommendations for long term or special storage conditions/requirements. If possible, packaging should be marked with the following notation: Packaging materials are essential for maintaining EQ qualification of this component. Do not discard the packaging until installation in the intended application is complete. If this item is to be returned to stock it shall be returned in its original packaging. Velan is to include a shelf life statement, when applicable, with every purchase order indicating the shelf life date of each item (Catalog ID Number) on the purchase order. Shelf life for every item or spare part should be assigned by Velan under their quality assurance program and in accordance with industry (e.g., EPRI, Mil Spec, etc.) recommended shelf life values for similar components. Shelf life can be determined by using EPRI Report: NP6408, Guidelines for Establishing, Maintaining and Extending the Shelf Life Capability of Limited Life Items (NCIG-13): Typical Data from EPRI Report: NP6408, App. B, List of Generic Shelf Lives (Partial List) Material Shelf life in years (EPRI NP6408) Cellulose 40 EPDM/EPR 60 Neoprene 36 Nitrile 14 Nomex 60 Nylon 25 Teflon 60 UHMWPE 14 Viton 49 Tefzel 60 OPG Receiving Inspector should not accept the valve or spare parts for delivery if the remaining shelf life is less than 70% of the recommended shelf life at the time of delivery without prior written consent. 9.0 CERTIFICATION TO ACCOMPANY SHIPMENT Velan shall supply a certificate which shall accompany the shipment of the items and spare parts. This certificate shall be signed by Velan QA authority and shall certify that: The items have been manufactured/ supplied in accordance with Velan s quality program that meets the requirements of the CSA CAN3 Z299.2/3-85 program and the supplemental requirements of OPG P.O. Nuclear class 1, 2 or 3 components and materials have been manufactured in accordance with a quality assurance program that meets the requirements of ASME, Section III subsection NCA 4000 (for components) or ASME, Section III subsection NCA 3800 (for materials). The Velan item supplied and referenced in the Catalog ID description both meets the design requirements and is equivalent to the Velan item specified on the purchase order, which has been evaluated and qualified by the OPG Engineer for use in nuclear safety applications based on applicable primary controlled document(s) referenced in the OPG purchase order (P.O.) item description. This clause applies to purchase orders placed on or after August 20, Page 6 of 7

7 The certificate shall list all the non-metallic components indicating the material of construction by generic product name and certify that the material supplied is as indicated. If there is a change or substitution of material, design, compounds used in construction, manufacturing method(s) or nondestructive method is proposed or identified, that change shall be reviewed/accepted by the OPG Engineer in writing prior to shipment. Evidence of that acceptance shall accompany the certification statement and the wording of the statement shall be suitably modified to reflect the change and the acceptance. The certificate shall also clearly indicate the following: Velan name, model or part number. The serial number(s) or batch number (as applicable). OPG s purchase order number and Catalog ID number. The name and title of QA authority shall appear below the signature and the approval date shall be clearly evident HISTORY DOCKET FOR NUCLEAR CLASS COMPONENTS (MATERIALS) When supplying nuclear class (items or components) pressure retaining components parts and assemblies or materials, the requirements of the OPG specification N-TS , History Docket/Nuclear Material Documentation Release shall apply. References to CSA N and Update No. 2 take precedence over any other standard edition specified in documents referenced in the Purchase Order, e.g.: drawings, technical specifications, etc. This clause applies to purchase orders placed on or after August 20, Page 7 of 7