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Capability
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The maximum load a nuclear component can carry in a specified situation without exceeding limits of temperature and stress.
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Capacity
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The amount of electric power that a generating unit can produce.
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Cladding
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A thin metal tube, commonly made from Aluminum, stainless steel or zirconium alloys, that coat the nuclear fuel pellets and prevents corrosion of the fuel.
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Commercial Operation
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When the plant is first handed over by the contractors to the owner and declared officially in commercial operation. A period from the first grid connection to the Commercial Operation is called 'trial operation'.
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Containment building
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A hermetically sealed building which houses the nuclear reactor core and other systems that could potentially release fission products to the atmosphere during an accident.
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Construction Start
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First major placing of concrete, usually for the base mat of the reactor building, is done. From this date the reactor is considered to be under construction.
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Control rod
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A rode/plate/tube that is used to absorb the neutrons in the reactor core. These help to control the number of fission events and thus the power of the nuclear reactor.
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Concept Description
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When the basic idea and design goals are described; A few calculations/sketches/data are provided; Development and test needs have been identified; and rough estimates of costs and schedules are available.
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Conceptual Design
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When the key components and layout drawings as well as single line diagrams are available; Brief descriptions of key components and systems are provided; Identification and preliminary analysis of concept relevant incidents and accidents have been performed.
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Coolant
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A substance that is used to remove or transfer heat from the reactor core. Common coolants include light water, heavy water, air, carbon dioxide, helium, liquid sodium, and a sodium-potassium alloy.
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Core
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The central part of a reactor unit where the nuclear fuel assemblies are located and the heat for steam production is generation.
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Country Nuclear Power Profiles
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CNPP
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The CNPP compiles background information on the status and development of nuclear power programs. It consists of organizational and industrial aspects of nuclear power programs and provides information about the relevant legislative, regulatory, and international framework in each country.
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