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GB/T 31989-2015: Power Supply Safety for High Voltage Consumer Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 31989-2015: Power Supply Safety for High Voltage Consumer---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT31989-2015GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.020 C 65 Power Supply Safety for High Voltage Consumer Issued on: SEPTEMBER 11, 2015 Implemented on: APRIL 1, 2016 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Terms and Definitions ... 6 4 General ... 8 5 Consumer’s Electric Power Supply and Self-Contained Emergency Power Supply Configuration ... 8 6 Equipment Configuration ... 9 7 Safety Management ... 11 8 Operation Management ... 13 Bibliography ... 18ForewordThis Standard was drafted as per the rules specified in GB/T 1.1-2009. This Standard was proposed by China Electricity Council. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of High Voltage Electrical Safety (SAC/TC 226). Drafting organizations of this Standard. State Grid Beijing Electric Power Corporation, China Electric Power Research Institute, Shougang Corporation, and Beijing Yanshan Petrochemical Corporation. Chief drafting staffs of this Standard. Tang Yifeng, Cai Chongji, Shi Jingjian, Song Peng, Li Hongbin, Li Ligang, Li Guoxue, Jiang Min, Ma Quanru, Ding Rong, Liang Jie, Chen Yanxia, He Yan. Power Supply Safety for High Voltage Consumer1 ScopeThis Standard specifies the basic safety requirements for power supply and self- contained emergency power supply configuration, equipment configuration, safety management, operation management of high voltage consumer (hereinafter referred to as “consumer”). This Standard is applicable to the power supply safety work for the 10kV and above consumers. The power supply safety work for the 1kV above and 10kV below consumers can refer to this Standard to use.2 Normative ReferencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard. GB 1094.1 Power Transformers – Part 1. General GB 1984 High-Voltage Alternating-Current Circuit-Breakers GB/T 2900.50 Electrotechnical Terminology – Generation, Transmission and Distribution of Electricity – General GB 3906 Alternating-Current Metal-Enclosed Switchgear and Controlgear for Rated Voltages above 3.6 Kv and up to and including 40.5 Kv GB/T 11022 Common Specification for High-Voltage Switchgear and Controlgear Standards GB/T 12325 Power Quality – Admissible Deviation of Supply Voltage GB/T 12326 Power Quality – Voltage Fluctuation and Flicker GB/T 13499 Application Guide for Power Transformers GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment GB/T 14549 Power Quality – Harmonics in Public Supply Network GB/T 15543 Power Quality – Admissible Three-Phase Voltage Unbalance Factor GB/T 16434 Environmental Pollution Classification and External Insulation Selection for High Voltage Transmission Line, Power Plant and Substation GB/T 17468 The Guide for Choice Power Transformers GB 26859 Safety Code of Electric Power Industry – Part of Electric Lines GB 26860 Safety Code of Electric Power Industry – Electric Part of Power Plants and Transformer Substations GB 50061 Code for Design of 66kV or under Over-Head Electrical Power Transmission Line GB 50140 Code for Design of Extinguisher Distribution in Buildings GB 50150 Standard for Hand-Over Test of Electrical Equipment for Installation of Electrical Installations GB 50168 Code for Construction and Acceptance of Cable System Electric Equipment Installation Engineering GB 50173 Code for Construction and Acceptance of 35kv and under Over-Head Power Levels Electric Equipment Installation Engineering GB 50194 Safety Code of Power Supply and Consumption for Installation Construction Engineering GB 50217 Code for Design of Cables of Electric Engineering GB 50229 Code for Design of Fire Protection for Fossil Fuel Power Plants and Substations GB 50545 Code for Design of 110kv~750kv Overhead Transmission Line DL/T 486 High-Voltage Alternating-Current Disconnectors and Earthing Switches DL/T 587 Code for Operating Management of Microprocessor-Based Relaying Protection Equipment DL/T 596 Preventive Test Code for Electric Power Equipment DL/T 995 Testing Regulations on Protection and Stability Control Equipment DL/T 5352 Technical Code for Designing High Voltage Electrical Switchgear GA 1089 Public Security Risk Levels and Security Requirements for Power Facilities JB/T 3855 High-Voltage Alternating-Current Vacuum Circuit-Breaker JGJ 46 Technical Code for Safety of Temporary Electrification on Construction Site3 Terms and DefinitionsThe following terms and definitions specified in GB/T 2900.50 are applicable to this document. 3.1 High voltage, HV The voltage level exceeding 1kV. NOTE. In specific condition, it indicates the transmission voltage level in the power system. 3.2 Electric power utilization The behavior of using electricity for a intended purpose. 3.3 [Power] consumer The party receiving the power supply from the grid and power plant. 3.4 Important power consumer The electric power utilizing organizations or electric power utilizing sites having specific reliability requirements for the power supply, which take a crucial position in the social, political, economic life of certain region (city) or country; the power-off of which may lead to personal injury and death, greater environmental pollution, greater political impact, greater economic losses, and serious confusion of social and public order. 3.5 Double power supply Two buses from two different substations, respectively, or two buses in the same substation with different power incoming lines; two power supplies generating load electricity to the same consumer. 3.6 Double circuit Two power supply lines generating load electricity to the same consumer. 3.7 [Electrical equipment] defect the upper and lower levels of cooperation, 110kV and below device is suitable for adopting the integrated digital protection device with the protection, control, measurement, acquisition and communication functions. The relay protection device with voltage level 220kV and above shall be configured by the duality principle. 6.3.4 The low-voltage configured electronic release shall combine the load characteristics to have the delay or instantaneous protection function. 6.4 Automation and communication device 6.4.1 35kV and 110kV substation (power distribution station) shall be equipped with automation system; 220kV-and-above substation shall be equipped with monitoring system, and shall adopt the integrated monitoring system. 6.4.2 The automation system shall not only ensure the equipment operation monitoring and accident analysis processing, but also satisfy the requirements for dispatching the automation system to exchange data at the same time. When dispatching the automation system to exchange date, it shall meet the requirements for the safety and protection of secondary system, and shall be equipped with uninterruptible power supply and time synchronization system. 6.4.3 The monitoring host in the 220kV-and-above voltage level substation shall adopt dual-computer redundancy configuration; the monitoring host in 110kV-and- below substation shall adopt the single-computer redundancy configuration. 6.4.4 Proper communication mode shall be selected according to the actual situations and specific requirements of substation (power distribution station). 6.5 Electric energy metering device 6.5.1 The consumer shall not start the metering cabinet, box arbitrarily, or add lead seal to the instrument; shall not move, change, damage, forge the electric energy metering device arbitrarily. 6.5.2 The metering device, acquiring device and other devices equipped to the consumer shall be protected by the consumer. In case of the loss or damage, and etc., the power supply enterprise shall be informed immediately.7 Safety Management7.1 General requirements 7.1.1 The consumer shall carry out the safety management work according to the provisions of laws and regulations, and requirements of relevant national and industrial standards like GB 26859, GB 26860, GB 50229, GB 50140, GA 1089 and etc.. b) For the consumer not setting the centralized monitoring center or monitoring center. 1) 35kV-and-above voltage level substation shall be arranged special personnel to be on-duty for 24h in the whole day; no less than 2 personnel for each shift, and one of the two ones shall be designated as shift leader; 2) The power distribution room with 10kV voltage level and transformer capacity 630kVA and above shall be arranged special personnel to ... ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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