GB/T 50294: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 50294-2014 | English | RFQ |
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15 days [Need to translate]
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Design code for general plan and transportation of nuclear power plants
| Valid |
GB/T 50294-2014
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| GB/T 50294-1999 | English | RFQ |
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14 days [Need to translate]
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Design code for general plan and transportation of nuclear power plants (Valid till August 2015)
| Obsolete |
GB/T 50294-1999
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PDF similar to GB/T 50294-2014
Basic data | Standard ID | GB/T 50294-2014 (GB/T50294-2014) | | Description (Translated English) | Design code for general plan and transportation of nuclear power plants | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F65 | | Classification of International Standard | 77.040.10 | | Word Count Estimation | 143,121 | | Date of Issue | 12/2/2014 | | Date of Implementation | 8/1/2015 | | Older Standard (superseded by this standard) | GB/T 50294-1999 | | Quoted Standard | GB 50007; GB 50012; GB 50016; GBJ 22; GB 50201; GB 50330; GB 146.2; GB 11806; TB 10001; JTS 165; JTJ 212; JTG B01; JTG D40; JTG D50 | | Regulation (derived from) | Housing and Urban-Rural Development Ministry Bulletin No. 646 | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China; General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China | | Summary | This Standard applies to new, expanded nuclear power plant general layout and transportation design. | GB/T 50294-2014: Design code for general plan and transportation of nuclear power plants---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General
1.0.1 In order to implement the national policy of safety first for civil nuclear facilities and the national infrastructure construction policy, follow the national laws and regulations on nuclear power plant construction, and unify the design principles and technical requirements for the general layout and transportation design of nuclear power plants, do Safe and reliable, advanced technology, reasonable layout, formulate this specification.
1.0.2 This code is applicable to the general layout and transportation design of newly built and expanded nuclear power plants.
1.0.3 The general layout and transportation design of nuclear power plants should implement the principles of economical and intensive land use, adapt measures to local conditions, compact layout, and rational partitions to improve land use efficiency.
1.0.4 For the general layout design of nuclear power plants, technical and economic comparisons of multiple schemes shall be carried out, and the design scheme shall be selected and determined.
1.0.5 The general layout design of the expansion project shall be comprehensively considered and coordinated in combination with the characteristics of the original general layout, production system and operation management.
1.0.6 The general layout and transportation design of the nuclear power plant shall not only comply with this specification, but also comply with the provisions of the current relevant national standards.
2 terms
2.0.1 Site selection
The process of selecting a suitable site for a nuclear power plant, including an assessment of the relevant design basis.
2.0.2 External human factors external human factors
Man-made handling, processing, and transportation of dangerous goods outside the nuclear power plant, such as facilities that are flammable, explosive, corrosive, toxic, and radioactive, may cause hazards to the nuclear power plant in the event of an accident.
2.0.3 External human induced events external human induced events
Events caused by external human factors.
2.0.4 emergency planning zone emergency planning zone
In order to take timely and effective protective actions to protect the public in the event of an accident at a nuclear power plant, emergency plans and emergency preparedness areas have been established around the nuclear power plant.
2.0.5 plume emergency planning zone plume emergency planning zone
Contingency planning areas established for plume exposure pathways (plume immersion external exposure, inhalation internal exposure, and ground deposition external exposure).
2.0.6 planning restricted area planning restricted area
The area directly adjacent to the non-residential area confirmed by the provincial people's government. The mechanical growth of the population must be limited in the planning restricted area, and new construction and expansion projects in the area should be guided or restricted, so as to consider the possibility of taking appropriate protective measures in emergency situations.
2.0.7 Non-residential area exclusion area
An area within a certain range around the reactor, where permanent residents are strictly prohibited, and the operating organization of the nuclear power plant exercises effective control over this area, including the evacuation of any personal and property from this area; roads, railways, and waterways can pass through this area, However, it shall not interfere with the normal operation of the nuclear power plant; in the event of an accident, appropriate and effective arrangements may be made to control traffic to ensure the safety of staff and residents. In non-residential areas, activities not related to nuclear power plants are allowed as long as they do not affect the normal operation of nuclear power plants and endanger the health and safety of residents.
2.0.8 physical protection
Safeguard the important equipment and materials of nuclear power plants to minimize the risk of damage to important equipment and loss of nuclear materials under any circumstances.
2.0.9 design basis design basis
The various conditions and events that are explicitly considered in accordance with established standards during the design of a nuclear power plant so that the planned operation of the nuclear power plant through the safety system can withstand these conditions and events without exceeding regulatory limits.
2.0.10 site area
The area where the nuclear power plant is located with definite boundaries and under the effective control of the nuclear power plant management personnel.
2.0.11 multi-reactor site
A site of a nuclear power plant with more than two reactors and the distance between each reactor is less than 5km.
2.0.12 Nuclear power plant
Any plant or station that uses nuclear reactors to generate electricity, including one or several reactors, and all systems, facilities, buildings, and structures necessary for safety and heat or electricity generation.
2.0.13 nuclear power unit nuclear power unit
A basic power generation unit consisting of a reactor and its associated turbogenerators, as well as the systems and facilities required to maintain their normal operation and ensure safety.
2.0.14 Nuclear island
A general term for the nuclear steam supply system and related systems, components and buildings (usually including the reactor building, fuel plant and nuclear auxiliary building, etc.) that accommodate the nuclear steam supply system.
2.0.15 conventional island
The general term for the turbogenerator plant and its auxiliary equipment used to arrange the turbogenerator set (usually including the turbogenerator plant, main transformer, auxiliary transformer platform, etc.).
2.0.16 Safety important buildings and structures structures important to safety
3.1.9 The site of the plant should have uniform and stable geological conditions, and the foundation should have sufficient bearing capacity.
3.1.10 The site flood control shall consider the design basis flood that the nuclear power plant must resist. Design basis flood combination events shall comply with the provisions in Table 3.1.10.
Table 3.1.10 Design Basis Flood Combined Events
3.1.11 The plant site shall have sufficient and reliable water sources meeting the needs of production and living, and the water shall meet the requirements of local water resources planning.
3.1.12 The site should be located on the upwind side of the nearby towns or residential areas with the minimum wind frequency all year round.
3.1.13 The plant site should be located near the main traffic line or in the area with short and convenient lead-in special lines and economical areas, or near the area where large-scale wharves can be built, and the conditions for large-scale transportation should be met.
3.1.14 The topography of the plant site should be conducive to plant layout, atmospheric dispersion, traffic connection, site drainage and reduction of earthwork, etc.
3.1.15 Residential or industrial centralized water intake points should not exist in the groundwater runoff path of the plant site.
3.1.16 The outlet conditions of the power plant should be fully considered, and sufficient outlet corridors should be reserved according to the planning requirements of the power plant access system.
3.1.17 The site of the plant should be conducive to the collaboration with neighboring industrial enterprises and supporting towns in production, transportation, power utility, maintenance, comprehensive utilization, development of circular economy and living facilities.
3.1.18 The plant site should not be selected in the following areas.
1.Major farming, animal husbandry and fish breeding areas;
2 drinking water source protection area;
3.Deposit areas where valuable mineral deposits can be exploited;
4 Historical and cultural relics protection areas;
5 National scenic areas, forests and nature reserves;
6 Important military facility areas and surrounding areas.
3.2 Nuclear Safety Guidelines
3.2.1 The site selection of nuclear power plants shall comply with the protection of the public and the environment from the hazards caused by the release of radioactive accidents, and at the same time, the release of radioactive substances in the normal operating state of nuclear facilities shall also be considered. Site selection should include the following factors.
1 The impact of external events (including external natural events and external man-made events) on the nuclear power plant in the area where the specific site is located;
2 Site characteristics and environmental characteristics that may affect the transfer of released radioactive substances to the human body and the environment;
3.Population density, population distribution and other characteristics of the outlying zone related to the ability to implement emergency measures and the need for individual and group risk assessment.
3.2.2 Nuclear power plants should be built in places with relatively low population density and relatively far away from big cities. There should be no towns with more than 10,000 people within the restricted area of nuclear power plant planning, and no more than 100,000 people within a radius of 10 km from the site. Towns with more than 100,000 people.
3.2.3 The site should not be selected in areas that may be harmed by floods (including precipitation, high water level, high tide level) or floods and waves caused by failure of water-retaining structures, as well as tsunami or lake surges caused by earthquakes.
3.2.4 The site should avoid active faults that may potentially affect the safety of the nuclear power plant.
3.2.5 The plant site should not be selected in areas with natural features such as caves and karsts and man-made features such as mines, oil wells or gas wells, as well as areas that cause ground subsidence, subsidence or uplift.
3.2.6 The underground material of the site should be consolidated or well cemented rock and soil layer. Under the ground motion conditions of the site design basis, there should be no potential liquefied soil layer in the foundation of buildings and structures important to safety.
3.2.7 In the plant site and its adjacent areas, there should be no geological hazards that are difficult to prevent and control.
3.2.8 The site should not be selected in areas affected by extreme weather such as tropical cyclones and severe tornadoes.
3.2.9 The meteorological conditions in the site area should be conducive to the atmospheric dispersion of airborne radioactive substances.
3.2.10 The site should be outside the screening distance of the following facilities.
1 Large dangerous facilities such as chemical and explosive production plants and storage warehouses, oil refineries, oil and natural gas storage facilities;
2 Civilian airports, military airports, aerial live ammunition ranges and air routes;
3 Pipelines conveying flammable gases or other dangerous substances;
4 The transportation routes for carrying dangerous goods include waterways, landways and air routes.
3.2.11 In site selection, the feasibility of implementing the off-site emergency plan shall be demonstrated in combination with the current situation and expected development of the environmental characteristics around the site. In order to implement emergency measures, the site should have two traffic routes for external communication in different directions.
3.2.12 The risks associated with external events considered in the design of nuclear facilities must be determined. For a certain external event (or a combination of external events), the parameter values that characterize its risk should be selected to determine the design basis for external events of the nuclear power plant.
3.2.13 The safety of storage and transportation of new nuclear power plant fuel, spent fuel and radioactive waste should be taken into account when selecting the site.
4 Master Plan
4.1 General provisions
4.2.3 For a multi-reactor site, a unified emergency planning area, planning restricted area and non-residential area boundary shall be determined, and its scope shall include the envelope of the boundary determined by each unit.
4.2.4 The requirements for radioactive material protection and environmental health protection in nuclear power plants must comply with the current national standards.
4.2.5 High-voltage transmission lines should avoid important facilities. When it is unavoidable, there should be sufficient protective distance between them.
4.3 Transportation
4.3.1 The transportation of nuclear power plants should be combined with the current status of local transportation and development planning, and should meet the requirements of transportation during production and operation of nuclear power plants, transportation during construction and implementation of emergency plans for nuclear power plants, and should be convenient for operation and management, taking into account local transportation.
4.3.2 The transport of spent fuel and radioactive waste should be carried out in a safe, reliable, and short route. The transportation route should avoid busy national arterials and should avoid passing through urban residential areas.
4.3.3 The nuclear power plant shall set up the site, evacuation road, transportation and communication facilities required for the implementation of the emergency plan.
4.3.4 The access roads of nuclear power plants should make reasonable use of existing national highways and urban roads; the routes of access roads connected to national highways or urban roads should be reasonable, short and quick, with a small amount of work, and should occupy no or less farmland.
4.4 Construction area
4.4.1 Construction area planning should include construction production area and construction living area. No permanent facilities shall be set up in the construction area.
4.4.2 The construction production area should be arranged at the expansion end of the factory area, close to the construction site and a location with convenient external transportation. The construction and production turnover site and the temporary storage yard should use the expansion project land.
4.4.3 The construction living area should be close to the nuclear power plant or the counties and towns near the power plant, and should have convenient transportation, and should have a certain scale of supporting living conditions.
4.4.4 The construction and production area should reasonably plan construction and production temporary construction, equipment and material storage yards, construction waste storage yards and construction temporary water supply, power supply, heating and other facilities, and should be compactly arranged, clearly divided, and land-saving.
4.4.5 Independent external entrances and exits should be set up for external transportation in the construction area to avoid crossing the factory area. The roads in the construction area should be considered to be combined with the permanent roads of the nuclear power plant, and should meet the requirements for transportation and hoisting.
5 general layout
5.1 General provisions
5.1.1 The general layout of the plant area should be based on the overall planning of the nuclear power plant, according to the requirements of production, emergency response, safety, environment, sanitation, civil construction, equipment installation and maintenance, etc., in combination with terrain, geology, meteorology, transportation conditions inside and outside the plant and Factors such as construction sequence shall be determined after multi-plan technical and economic comparison.
5.1.2 For nuclear power plants constructed in phases, the short-term projects should be arranged in a centralized manner to form a complete production system, and should be reasonably connected with the long-term projects.
5.1.3 The size of the land reserved for development in the factory area shall be determined according to the planned capacity and phased construction requirements. Reserved land for development shall meet the following requirements.
1 The reserved development land for the main production facilities of the long-term project should be arranged at the expansion end of the factory area, and the reserved development land for the auxiliary production facilities should be coordinated with the short-term project;
2 The reserved development land for the main production facilities of the long-term project should have a separate construction entrance and exit;
3 In the reserved development land, no permanent facilities shall be built.
5.1.4 The general layout should be clearly divided and relatively concentrated according to the production function and whether there is radioactivity.
5.1.5 As long as the overall layout meets the production process conditions, it is advisable to make the closely related auxiliary facilities and production management facilities form a combined workshop or multi-storey building.
5.1.6 The plane positions of buildings and structures shall be arranged according to the terrain and geological conditions. In mountainous or hilly areas, possible hazards caused by slope instability should be prevented. When unavoidable, a stability assessment should be made. Nuclear islands and other buildings and structures important to safety shall be arranged in sections where the properties of the foundation rock and soil are uniform and the parameters of the foundation rock and soil are suitable.
5.1.7 The plane layout of the group buildings in the factory area should be coordinated with the space shape to form a harmonious and beautiful working environment.
5.1.8 According to the characteristics of nuclear power plants, the land for greening should be reasonably determined, and should meet the requirements of safety, environment, production and plant capacity.
5.1.9 The factory area should set up control area, protection area and critical area. The shape of the physical protection fence in the factory area should be neat, with few corners, and it should be convenient for the arrangement and monitoring of detection instruments.
5.1.10 The overall layout of the plant area should meet the requirements for the assembly place and evacuation route of the plant area personnel for the implementation of emergency measures.
5.1.11 The traffic and transportation layout in the factory area should make the material flow smooth and short, and should separate people and goods and avoid crossing. Radioactive logistics and non-radioactive logistics should be transported separately. Around the main factory building complex, there should be a work site suitable for transportation and hoisting.
5.1.12 The width of the aisle in the factory area shall meet the following requirements.
1 It shall meet the requirements of buildings, structures and open-air equipment for fire protection, explosion protection and sanitary spacing;
2 It shall meet the layout requirements of pipelines, pipe galleries, roads, etc., as well as the requirements for construction, assembly operations, maintenance, transportation and hoisting of large equipment and large modules;
3.It shall meet the site requirements for the layout of steps in the vertical design of the site;
4 It shall meet the site requirements reserved for the expansion project.
5.1.13 The fire load density and fire resistance rating of buildings and structures important to safety such as nuclear islands and important plant water pump houses shall be determined according to relevant nuclear safety regulations and specifications.
5.1.14 For non-safety important buildings and structures, the fire hazard and minimum fire resistance level during the production process shall comply with the following regulations.
1 The fire hazard classification and minimum fire resistance class of main production and auxiliary buildings and structures shall comply with the provisions in Table 5.1.14-1.
Table 5.1.14-1 Fire Hazard Classification and Minimum Fire Resistance Class of Main Production and Auxiliary Buildings and Structures
Note. 1 Except for the buildings and structures specified in this table, the fire hazard classification and minimum fire resistance class of other buildings and structures shall comply with the relevant provisions of the current national standard "Code for Fire Protection Design of Buildings" GB 50016.
2 For the electrical control building (network control building, relay control building), if no measures are taken to prevent cables from igniting and spreading, the fire hazard shall be Class C.
2 The fire hazard classification and minimum fire resistance class of auxiliary buildings and structures shall comply with the provisions in Table 5.1.14-2.
Table 5.1.14-2 Fire Hazard Classification and Minimum Fire Resistance Class of Auxiliary Buildings and Structures
Note. In addition to the regulations in this table...
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