What is meant by design basis?
Definition. Information that identifies the specific functions to be performed by a structure, system, or component of a facility, and the specific values or range of values chosen for controlling parameters as reference bounds of design.
What is a design basis condition?
A Design-Basis Accident/Condition (DBA/DBC) refers to the postulated event/condition that a nuclear facility must be designed and built to withstand without loss to the systems, structures, and components that are necessary to ensure public health and safety.
What is design basis analysis?
2.3 ‘Design basis analysis’ (DBA) is deterministic analysis used to establish many of the conditions that are considered when designing or modifying a facility. Its aim is to provide a robust demonstration of the fault tolerance of the facility and the effectiveness of its safety measures.
What is a design basis earthquake?
design-basis earthquake (DBE): “That earthquake for which the safety systems are designed to remain functional both during and after the event, thus assuring the ability to shut down and maintain a safe configuration.”
What should a basis of design include?
The Basis of Design (BOD) documents the principles, assumptions, rationale, criteria, and considerations used for calculations and decisions required during design. The BOD is developed by the Designer and builds upon the PC and OPR.
How do you create a basis for design?
What is covered in the design basis document?
- Project Requirements (Project need statement)
- Scope of the Project.
- Relevant Legislation: Licensing and Registration requirements.
- Applicable Codes and Standards.
- QA requirements.
What is a design Basis Threat?
What is a Design Basis Threat (DBT)? IAEA defines a DBT as: “the attributes and characteristics of potential insider and/or external adversaries, who might attempt unauthorized removal or sabotage, against which a physical protection system is designed and evaluated” (NSS-13).
What does DBM mean in project management?
Specification (EDS). DESIGN BASIS. MEMORANDUM (DBM)
What is the difference between design basis and design criteria?
Basis of Design vs Design Criteria The Basis of Design document includes information on the whole project and explains in detail the systems, client expectations, why the systems were selected and design. The Design Criteria usually only includes a list of expected design information, in tables, that should be met.
What is the purpose of a design basis threat?
A DBT describes the capabilities of potential insider and external adversaries who might attempt unauthorized removal of nuclear and other radioactive material or sabotage. The operator’s physical protection system is designed and evaluated on the basis of the DBT.
What is DBE and MCE?
The MCE (Maximum Credible Earthquake) is the most severe earthquake effects considered by this standard. The DBE (Design Basic Earthquake) is the earthquake effects which can reasonably be expected to occur at least once during the design life of the structure.
What is OBE and SSE?
An NPP is generally designed for two levels of earthquake, namely the S1 level earthquake or Operating Basis Earthquake (OBE), and the S2 level earthquake or Safe Shutdown Earthquake (SSE) [2]. The OBE level earthquake corresponds to that level of earthquake which is expected to occur once during life of the plant.
Why is a basis of design important?
The Basis of Design (BOD) is a very important document for every project. The basis of design or project design basis provides all the principles, business expectations, criteria, considerations, rationale, special requirements, and assumptions used for decisions and calculations required during the design stage.
What is a basis of design product?
Basis-of-Design Product: Where Specifications name a product, or refer to a product indicated on Drawings, and include a list of manufacturers, provide the specified or indicated product or a comparable product by one of the other named manufacturers.
What is the basis of design LEED?
The basis of design is the documentation of the primary thought processes and assumptions behind design decisions that were made to meet the design intent. The format merges the salient parts of the design intent and basis of design.
What does DBT stand for in security?
According to the Objective and Essential Elements of a State’s Nuclear Security Regime (NSS No. 20) and other publications in the IAEA Nuclear Security Series, including Nuclear Security Recommendations on Radioactive Material and Associated Facilities (NSS No.
What is MCE in seismic design?
In a normal seismic hazard analyses intended for the public, that of a “maximum considered earthquake”, or “maximum considered event” (MCE) for a specific area, is an earthquake that is expected to occur once in approximately 2,500 years; that is, it has a 2-percent probability of being exceeded in 50 years.
What is safe shutdown earthquake?
Is the maximum earthquake potential for which certain structures, systems, and components, important to safety, are designed to sustain and remain functional.
What are the basis of a project?
Project Basis means, with respect to any date and time, (i) Project Costs plus (ii) the aggregate amount of any Unpaid Preference for Inland Member through such date.
What is a Design Basis Threat cybersecurity?
What is dbt model?
dbt is a development framework that combines modular SQL with software engineering best practices to make data transformation reliable, fast, and fun.
What is MCE and DBE?
MCE or the maximum considered earthquake is defined as the ground shaking level at the building site with a 2% probability of exceedance in 50 years, while DBE or the design basis earthquake is the level with a 10% probability of exceedance in 50 years and is assumed to be two-thirds of MCE.
How do you write basis in design?
The Basis of Design document includes information on the whole project and explains in detail the systems, client expectations, why the systems were selected and design. The Design Criteria usually only includes a list of expected design information, in tables, that should be met.
What is the difference between dbt and CBT?
CBT seeks to give patients the ability to recognize when their thoughts might become troublesome, and gives them techniques to redirect those thoughts. DBT helps patients find ways to accept themselves, feel safe, and manage their emotions to help regulate potentially destructive or harmful behaviors.
How is dbt different from airflow?
The dbt tool has a fleshed out front-end interface for query development and coding, whereas Airflow focuses more on the actual flow of data in its interface.
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