Criterion 26—Reactivity control system redundancy and capability. Some design requirements include hardware and software parameters, maintainability, availability, and testability. The reactivity control systems shall be designed with appropriate limits on the potential amount and rate of reactivity increase to assure that the effects of postulated reactivity accidents can neither (1) result in damage to the reactor coolant pressure boundary greater than limited local yielding nor (2) sufficiently disturb the core, its support structures or other reactor pressure vessel internals to impair significantly the capability to cool the core. Criterion 53—Provisions for containment testing and inspection. Loss of coolant accidents. Criterion 2—Design bases for protection against natural phenomena. Here is a more complete list of Design Requirement Examples. environment. Criterion 43—Testing of containment atmosphere cleanup systems. For example, some of the definitions need further amplification. The reactor containment structure, including access openings, penetrations, and the containment heat removal system shall be designed so that the containment structure and its internal compartments can accommodate, without exceeding the design leakage rate and with sufficient margin, the calculated pressure and temperature conditions resulting from any loss-of-coolant accident. A1 & A2 GENERAL DESIGN REQUIREMENTS The purpose and intent of the Technical Specifications is to provide guidelines for design and construction of civil infrastructure on Sydney streets on behalf of the City of Sydney (the City), including written specifications and standard drawings to obtain high-quality design and construction. The conditions under which a single failure of a passive component in a fluid system should be considered in designing the system against a single failure are under development. Their omission does not relieve any applicant from considering these matters in the design of a specific facility and satisfying the necessary safety requirements. Criterion 1—Quality standards and records. One of the best ways to identify the design requirements for your project is to use the concrete example of a similar, existing product. The containment atmosphere cleanup systems shall be designed to permit appropriate periodic inspection of important components, such as filter frames, ducts, and piping to assure the integrity and capability of the systems. The containment atmosphere cleanup systems shall be designed to permit appropriate periodic pressure and functional testing to assure (1) the structural and leaktight integrity of its components, (2) the operability and performance of the active components of the systems such as fans, filters, dampers, pumps, and valves and (3) the operability of the systems as a whole and, under conditions as close to design as practical, the performance of the full operational sequence that brings the systems into operation, including operation of applicable portions of the protection system, the transfer between normal and emergency power sources, and the operation of associated systems. Overall Requirements: Quality Standards and Records: 1: Design Bases for Protection Against Natural Phenomena: 2: Fire Protection: 3: Environmental and Dynamic Effects Design Bases: 4: Sharing of Structures, Systems, and Components: 5: II. Redundancy and independence designed into the protection system shall be sufficient to assure that (1) no single failure results in loss of the protection function and (2) removal from service of any component or channel does not result in loss of the required minimum redundancy unless the acceptable reliability of operation of the protection system can be otherwise demonstrated. I. 49 CFR § 173.410 - General design requirements. SHIPPERS - GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS, Subpart I. The principal design criteria establish the necessary design, fabrication, construction, testing, and performance requirements for structures, systems, and components important to safety; that is, structures, systems, and components that provide reasonable assurance that the facility can be operated without undue risk to the health and safety of the public. Protection by Multiple Fission Product Barriers: Reactor Design: 10: Reactor inherent Protection: 11 Criterion 41—Containment atmosphere cleanup. The design requirements for your project will differ from those of anyone else, because yours will apply to your specific problem statement and the product, system, or experience that you are designing. limitations upon the release of such effluents to the environment. of rapidly propagating failure, and of gross rupture. holders of operating licenses using an alternative source term under § 50.67, shall meet the requirements of this criterion, except that with regard to control room access and occupancy, adequate radiation protection shall be provided to ensure that radiation exposures shall not exceed 0.05 Sv (5 rem) total effective dose equivalent (TEDE) as defined in § 50.2 for the duration of the accident. tripping of the turbine generator set, isolation of the main condenser, and loss of all offsite power. Multiple failures resulting from a single occurrence are considered to be a single failure. The emergency core cooling system shall be designed to permit appropriate periodic pressure and functional testing to assure (1) the structural and leaktight integrity of its components, (2) the operability and performance of the active components of the system, and (3) the operability of the system as a whole and, under conditions as close to design as practical, the performance of the full operational sequence that brings the system into operation, including operation of applicable portions of the protection system, the transfer between normal and emergency power sources, and the operation of the associated cooling water system. Suitable redundancy in components and features, and suitable interconnections, leak detection, and isolation capabilities shall be provided to assure that for onsite electric power system operation (assuming offsite power is not available) and for offsite electric power system operation (assuming onsite power is not available) the system safety function can be accomplished, assuming a single failure. In the table are a few examples of design requirements. Define owner design requirements and project design needs Further to the design related information gathered for the preparation of the business case, the design manager should gather any additional design related information from the owner and other relevant sources. One of the systems shall use control rods, preferably including a positive means for inserting the rods, and shall be capable of reliably controlling reactivity changes to assure that under conditions of normal operation, including anticipated operational occurrences, and with appropriate margin for malfunctions such as stuck rods, specified acceptable fuel design limits are not exceeded. Criterion 39—Inspection of containment heat removal system. The standards followed by FMS are described in subsequent sections. Your requirements will be more specific and directly related to meeting the needs of your project's users. Components which are part of the reactor coolant pressure boundary shall be designed to permit (1) periodic inspection and testing of important areas and features to assess their structural and leaktight integrity, and (2) an appropriate material surveillance program for the reactor pressure vessel.

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