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Basic dataStandard ID: GB 51418-2020 (GB51418-2020)Description (Translated English): (General radar station design standards) Sector / Industry: National Standard Classification of Chinese Standard: P76 Classification of International Standard: 33.020 Word Count Estimation: 57,549 Date of Issue: 2020 Date of Implementation: 2020-10-01 Issuing agency(ies): Ministry of Housing and Urban-Rural Development of the People's Republic of China; State Administration for Market Regulation GB 51418-2020: (General radar station design standards)---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 This standard is formulated to standardize the design content and depth of general radar station projects, improve the design level of such projects, achieve advanced technology, save energy, protect the environment, be economically reasonable and ensure quality. 1.0.2 This standard is applicable to the design of new construction, expansion and reconstruction of general radar stations. 1.0.3 In addition to implementing this standard, the general radar station design should also comply with the current relevant national standards. 2 terms 2.0.1 general radar station Refers to the general designation of buildings (structures), venues and radar equipment that are built to meet the requirements of various civilian radars and ensure the operation of radars and duty stations. 2.0.2 weather radar weather radar It is a detection device that detects the spatial distribution of precipitation by using the scattering and absorption characteristics of electromagnetic waves by precipitation particles such as clouds, fog, rain, and snow. 2.0.3 wind profile radar It is a remote sensing device for high-altitude wind field detection by launching electromagnetic beams in different directions at high altitudes, receiving and processing the information returned by these electromagnetic beams due to the uneven vertical structure of the atmosphere. 2.0.4 primary surveillance radar primary surveillance radar It is an active surveillance radar that detects by emitting electromagnetic waves, uses the echo signals of air targets to find targets, and performs parameter measurement to obtain distance, azimuth and relative speed information. 2.0.5 secondary surveillance radar secondary surveillance radar It is a surveillance radar that transmits an inquiry signal through a ground interrogator and receives a response signal from an aircraft equipped with an airborne response device in the air, and then obtains various information about the aircraft. 2.0.6 surface movement radar It is a radar that detects surface targets by emitting electromagnetic waves and using the echo signals of targets, including airport surveillance radars and port surveillance radars. 2.0.7 radome With good electromagnetic wave penetration characteristics, the thin shell structure used to protect the radar antenna feed system from the external environment is mostly a truncated sphere. 3 Classification and composition of general radar stations3.0.1 General radar stations mainly include weather radar stations, air traffic surveillance radar stations and surface surveillance radar stations. The typical radars applicable to each station type should be selected according to Table 3.0.1. 3.0.2 The general radar station shall consist of equipment, buildings (structures) and sites, and shall meet the following requirements. 1 The equipment of a general radar station shall consist of radar equipment and auxiliary facilities. Radar equipment should include outdoor units and indoor equipment. Auxiliary facilities should include radome, power supply and distribution equipment, water supply and drainage fire protection equipment, HVAC equipment, communication network equipment, lightning protection facilities, grounding facilities, security and environmental monitoring and other facilities. 2 The buildings (structures) of general radar stations should be composed of radar antenna platform, radar room, auxiliary room and auxiliary room. The zoning of radar station buildings (structures) should be uniformly planned in conjunction with the overall layout of the radar station. The arrangement of equipment in the partition shall meet the requirements of Table 3.0.2. 3 The site of the general radar station should be composed of roads in the station, parking spaces, green spaces, etc.4 Arrangement of radar equipment4.0.1 The erection method of the radar antenna should meet the detection requirements. 4.0.2 The radar antenna can be erected on a high platform or on a flat ground (Figure 4.0.2-1 and Figure 4.0.2-2). 4.0.3 The climatic environment of the general radar station shall meet the requirements for detection and operation of radar equipment. When the climate environment such as temperature, humidity, wind speed and salt fog concentration does not meet the requirements, it is advisable to add a radome. When the average maximum wind speed in the area where the general radar station is located exceeds the requirements in Table 4.0.3, a radome should be installed. 4.0.4 When the ambient maximum gust speed is greater than 65m/s, special design requirements should be put forward to the radome supplier. The wind environment conditions of the radar station should be determined according to the meteorological data of the area. 4.0.5 When installing a radome, the center of the radome should coincide with the rotation center of the antenna. 4.0.6 When the outdoor cabinet needs to be installed with a foundation, it should be designed according to its technical requirements. 4.0.7 The working areas of radar antenna tower, radar machine room and power distribution room must be equipped with access control. The antenna working area in the radar antenna tower should be equipped with an emergency brake linkage device. 4.0.8 The layout of the radar machine room cabinets of the general radar station shall comply with the relevant provisions of the current national standard "Data Center Design Code" GB 50174. 4.0.9 The location of the radar host system cabinet should meet the requirement that the waveguide port be aligned with the waveguide window. 4.0.10 The cables in the computer room of the general radar station shall be laid in the metal shielding bridge, and the strong and weak currents should be laid separately, and shall comply with the relevant provisions of the current national standard "Code for Design of Integrated Wiring System Engineering" GB 50311.5 Site selection and general layout5.1 Site selection 5.1.1 The site of the general radar station should be located in a relatively high-lying area, and should avoid the seismic zone, flood area, and geological disaster-prone area. 5.1.2 The general radar station should choose the surrounding open area. There should be no obstacles that affect the detection effect within the coverage required by the detection. 5.1.3 The newly built general radar station shall not affect the operation of existing legal facilities in the surrounding area. 5.1.4 The electromagnetic environment of the general radar station site should meet the needs of the normal operation of the radar. 5.1.5 The general radar station should keep a safe distance from substations, electrified railways, highways, high-voltage transmission (distribution) lines and other facilities with electrical interference sources. 5.1.6 The general radar station shall comply with the relevant provisions of the current national standard "Electromagnetic Environment Control Limits" GB 8702. 5.1.7 General radar stations should be kept away from strong noise sources and strong vibration sources. 5.1.8 General radar stations should avoid sources of smog, dust and harmful gases, and places where corrosive, flammable and explosive substances are produced or stored. 5.1.9 The site of the general radar station should be selected at a location convenient for power supply, water supply, transportation and communication. 5.2 General layout 5.2.1 The overall layout of the general radar station should be compact and reasonable, saving land. The land area of the radar station shall meet the requirements in Table 5.2.1. 5.2.2 The layout of the built-in (structure) buildings of the general radar station shall make reasonable use of the terrain and shall comply with the relevant provisions of the current national standard "Code for Fire Protection Design of Buildings" GB 50016. 5.2.3 The location of the radar antenna tower should be convenient for antenna hoisting, and the antenna hoisting site should be reserved. 5.2.4 The general radar station auxiliary room, auxiliary room and radar room can be built together. 5.2.5 The access road to the general radar station should be concrete or asphalt pavement, and the road width should not be less than 3.5m. When the length of the access road exceeds 400m, a meeting area should be set up. 5.2.6 The general radar station shall consider the passage of fire trucks, and shall comply with the relevant provisions of the current national standard "Code for Fire Protection Design of Buildings" GB 50016. 5.2.7 The pavement of the roads inside and into the station should be able to bear the load of large fire trucks, transport and hoisting radar equipment. The slope and turning radius should meet the requirements of transportation and hoisting equipment. 5.2.8 The site of the general radar station shall be equipped with drainage facilities, and shall have the ability to withstand flood disasters once in 50 years. 5.2.9 A fence should be set up around the site of the general radar station, and the height of the top of the fence from the outer ground should not be lower than 2.5m. 5.2.10 It is advisable to set up parking spaces and return pads in the general radar station. 5.2.11 The height of the green plants in the general radar station should not affect the normal operation of the radar.6 Architecture and Structure6.1 General provisions 6.1.1 The design service life of general radar station buildings should not be less than 50 years, and its seismic fortification standards should meet the requirements of the key fortification category (Class B) in the current national standard "Classification Standards for Seismic Fortification of Construction Engineering" GB 50223.When ancillary buildings are constructed independently, their seismic fortification standards shall comply with the requirements of the standard fortification category (Category C) in the current national standard "Classification Standards for Seismic Fortification of Construction Engineering" GB 50223. 6.1.2 The minimum construction area of various houses of general radar stations shall comply with the requirements in Table 6.1.2.When setting fire pump room, drinking water treatment, sewage and sewage treatment and other facilities, the room area can be increased by 50m2~120m2.For severe cold areas, the area of heating facilities and garages can be increased by 50m2 to 80m2. 6.2 Radar mast foundation 6.2.1 The height of the radar antenna tower should meet the detection requirements. 6.2.2 The radar antenna tower can adopt reinforced concrete shear wall structure or steel structure, and the surface surveillance radar tower should adopt steel structure, and the tower body should be equipped with stairs. 6.2.3 The design resonant frequency of the radar antenna tower should not be less than 3 times of the radar servo bandwidth, and should meet the comprehensive technical requirements of dynamic load and static load. 6.2.4 The foundation deformation of the radar antenna tower and the building (structure) in the station shall meet the normal operation requirements of the equipment, and shall comply with the relevant provisions of the current national standard "Code for Design of Building Foundations" GB 50007. 6.2.5 The radome foundation should be 1.5m~1.8m higher than the radar antenna tower platform. 6.2.6 The size and position of the embedded parts of the radome and antenna (servo) system foundation should meet the technical requirements. 6.2.7 The size of the radar antenna tower platform should be able to ensure the safe passage of maintenance personnel outside the radome, and should meet the installation requirements of the lightning receptor. 6.3 Radar Room and Auxiliary Room 6.3.1 The building structure of the radar room and auxiliary room of the general radar station shall comply with the requirements in Table 6.3.1. 6.3.2 It is advisable to set up a moving channel in the radar room, and the width of the channel should meet the equipment handling requirements. 6.3.3 Waterproof, moisture-proof and insect-proof measures should be taken for the holes, pre-buried pipes and cable trenches passing through the enclosure structure. 6.3.4 When the monitoring room is adjacent to the radar machine room, it is advisable to set up an observation window not less than 1.8m (width)×1.5m (height) and 0.9m away from the ground at the partition wall. 6.3.5 The indoor temperature and humidity of the radar room and auxiliary room of the general radar station shall meet the requirements in Table 6.3.5. 6.3.6 The lighting design of the radar room and the auxiliary room of the general radar station shall comply with the relevant provisions of the current national standard GB 50033 "Building Daylighting Design Standard". The radar room is not suitable for daylighting. 6.3.7 The lighting design of the radar room and auxiliary room of the general radar station shall comply with the requirements in Table 6.3.7, and shall comply with the relevant provisions of the current national standard "Architectural Lighting Design Standard" GB 50034.Except for the spare parts room and the maintenance room in the table, all should have emergency lighting capabilities, and explosion-proof lighting should be used in the oil drum room. 9.0.4 The form and heat source type of the general radar station heating system shall be determined according to the local characteristics and the principles of safety, reliability, economy and practicality, and convenient maintenance. 9.0.5 The generator room of the general radar station shall meet the heat dissipation requirements of the equipment. 10 Monitoring and Security 10.1 General provisions 10.1.1 The general radar station shall be equipped with environment and equipment monitoring system and safety precaution system. The design of each system should be based on the level of the computer room, and should be implemented in accordance with the relevant provisions of the current national standard "Technical Code for Safety and Protection Engineering" GB 50348 and "Smart Building Design Standard" GB/T 50314. 10.1.2 The environment and equipment monitoring and security systems should adopt a distributed or distributed network structure. The system should be easy to expand and maintain, and should have display, record, control, alarm, analysis and remote monitoring functions. 10.1.3 The environment and equipment monitoring system and safety protection system can be installed in the monitoring room, and uninterruptible power supply should be used for power supply. 10.2 Environment and power monitoring system 10.2.1 The environment and equipment monitoring system shall meet the following requirements. 1 It is to be ensured that the environment meets the operating requirements of radar equipment and auxiliary equipment; 2 In the radar machine room and auxiliary rooms where flooding may occur, water leakage detection and alarm devices shall be installed; 3 Cameras should be installed in the radar machine room and radome for video surveillance, and cameras can be installed in high-voltage power distribution room and low-voltage power distribution room for video surveillance. 10.2.2 Equipment such as special air conditioners for machine rooms, diesel generators, and uninterruptible power supply systems should be equipped with monitoring systems. The main parameters to be monitored should be included in the monitoring system, and the communication protocol should be easy to read by the monitoring system. 10.2.3 The collection content and technical requirements of the environment and power monitoring system should comply with the provisions in Table 10.2.3. 10.3 Security system 10.3.1 The security system should be composed of video surveillance, security monitoring system, intrusion alarm system and access control system, and the linkage control function should be provided between each system. The setting of security facilities for general radar stations shall comply with the provisions in Table 10.3.1. 10.3.2 When the general radar station is located in an area far away from towns and sparsely populated, it is advisable to install an electronic fence above the fence. A laser shooting device is installed above the fence. The fence should be divided into several defense zones, and should be linked with security cameras. 11 Lightning Protection 11.0.1 For the lightning protection design of general radar stations, the lightning protection level shall be determined respectively according to the local lightning environment, soil, meteorology, terrain, geological conditions, radar type, and lightning protection zone, and comprehensive lightning protection measures shall be taken. 11.0.2 The radar antenna platform of a general radar station should be equipped with a lightning rod, and its height should be calculated according to the rolling ball method. The air receptors should be connected to each other in equal pressure. The material of the lightning rod should not affect the radar electromagnetic wave detection characteristics. Radar stations located on high mountains and islands should be equipped with horizontal air receptors. 11.0.3 There should be no less than 2 dedicated down-conductors for buildings (structures) of general radar stations, and the down-conductors should maintain electrical connection paths and be laid symmetrically with the shortest path. 11.0.4 The grounding system of the general radar station shall adopt a common grounding device. The grounding body should be arranged in a ring around the building (structure). The grounding resistance value shall comply with the relevant provisions of the current national standard "Code for Lightning Protection Design of Buildings" GB 50057. 11.0.5 In addition to the relevant provisions of the current national standard "Code for Lightning Protection Design of Buildings" GB 50057, the lightning protection electromagnetic pulse of general radar stations should also meet the following provisions. 1 The indoor and outdoor power distribution lines and communication lines of the general radar station shall not directly enter the computer room overhead. The distribution lines shall adopt armored cables throughout, and be laid directly buried or laid in metal grooves (pipes). The cable shielding layer and metal shielding (pipe) should be electrically connected from the beginning to the end and should be grounded at both ends. When waveguide and metal shielding trough (pipe) pass through each floor, it shall be electrically connected with the equipotential bonding zone of this floor. 2 The radar machine room of the general radar station should be magnetically shielded. It is advisable to add shielding nets on six sides of the machine room, and the grid size should not be greater than.200mm×200mm. The metal doors and windows of the room should be reliably electrically connected to the main steel bars of the building. 3 The surge protective device (SPD) of the general radar station should determine the protection level according to the lightning environment and the importance of the protected object, and reasonably set the interface of each lightning protection zone. The surge protector (SPD) should be equipped with a reliable back-up overcurrent protection device. The signal line should be equipped with a suitable surge protector at the inlet and outlet ports of the equipment. The low-voltage power supply system of a radar station in a minefield or strong minefield should be equipped with ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 51418-2020_English be delivered?Answer: Upon your order, we will start to translate GB 51418-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 51418-2020_English with my colleagues?Answer: Yes. The purchased PDF of GB 51418-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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