GB/T 33708-2017 English PDF

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Basic data

Standard ID: GB/T 33708-2017 (GB/T33708-2017)
Description (Translated English): Static meter for direct current energy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N22
Classification of International Standard: 17.220.20
Word Count Estimation: 24,231
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Quoted Standard: GB/T 4798.1-2005; GB/T 4798.2-2008; GB/T 13384-2008; GB/T 16935.1-2008; GB/T 17215.211-2006; GB/T 17215.301-2007; GB/T 17215.321-2008; GB/T 17215.421-2008; GB/T 17626.11-2008; GB/T 17626.29-2006; GB/T 17627.1-1998; QC/T 413-2002; IEC 61010-1-2010
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the terms, requirements, test methods and inspection rules for stationary DC energy meters (hereinafter referred to as meters). This standard applies only to newly manufactured instruments with input voltages not exceeding 1 000 V. This standard does not apply to the following: - Input voltage exceeds 1 000 V; - DC standard table; - Portable instrumentation.

GB/T 33708-2017: Static meter for direct current energy

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Static meter for direct current energy ICS 17.220.20 N22 National Standards of People's Republic of China Static DC energy meter 2017-05-12 released 2017-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface Ⅴ 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 standard power value 2 4.1 Standard reference voltage 2 4.2 Standard reference current 2 4.3 Maximum voltage 3 4.4 Maximum current 3 5 mechanical requirements and test 3 5.1 General machinery requirements 3 5.2 shell 3 5.3 Electrical clearance and creepage distance 3 5.4 Class II protective insulation enclosures 4 5.5 heat and flame retardant 4 5.6 dust and waterproof 4 5.7 Display of measured values 4 5.8 Output device 5 5.9 Signs of the instrument 5 5.10 appearance inspection 5 6 Climatic conditions 5 6.1 Temperature range 5 6.2 Relative humidity 6 6.3 Climate and environmental impact test 6 7 Electrical requirements 6 7.1 Voltage effects 6 7.2 Power consumption 8 7.3 Short-time overcurrent effect 8 7.4 Self-heating effects 9 7.5 Temperature rise 9 7.6 Insulation resistance 9 7.7 AC voltage test 9 7.8 Pulse voltage test 10 7.9 DC ripple impact test 10 7.10 voltage line reverse polarity connection 10 8 Accuracy 10 8.1 Test reference conditions 10 8.2 Basic error 11 8.3 Basic error limits at reference voltage 11 Basic error limits under reference current 8.5 Impact changes caused by the amount of change 12 8.6 start and creep 13 8.7 Instrument constant 13 8.8 clock timing error 14 8.9 Power supply voltage change 14 9 Electromagnetic compatibility (EMC) 14 9.1 Radio interference suppression 14 Fast transient burst immunity test 9.3 Radio frequency electromagnetic radiation immunity test 14 9.4 Radio frequency field sensing conducted disturbance disturbance immunity test 14 9.5 Electrostatic Discharge Immunity Test 14 9.6 Surge Immunity Test 14 External constant magnetic induction test 9.8 External power frequency magnetic field impact test 14 10 Data Security 14 11 inspection rules 11.1 Factory inspection 15 11.2 Type Inspection 15 12 Packaging, storage and transportation 15 Appendix A (informative) Test items and sequence 16 Appendix B (normative) Voltage test voltage waveforms for voltage sags and short interruptions Figure B.1 AC power supply ΔU = 100%, 1s voltage interrupt 18 Figure B.2 AC power supply ΔU = 100%, rated frequency One cycle voltage interrupt 18 Figure B.3 AC power supply ΔU = 50%, 1min voltage drop 18 Figure B.4 DC power supply voltage ΔU = 100%, 1s voltage interrupt 19 Figure B.5 DC power supply voltage ΔU = 100%, 0.3s voltage interrupt 19 Figure B.6 DC power supply voltage ΔU = 60%, 1s voltage drop 19 Table 1 Standard reference voltage 2 Table 2 Standard reference current 2 Table 3 Clearance 4 Table 4 creepage distance 4 Table 5 Temperature range 5 Table 6 Relative humidity 6 Table 7 Measuring voltage range 6 Table 8 AC test voltage 9 Table 9 Pulse test voltage 10 Table 10 Test Reference Conditions 11 Table 11 Basic error limits at reference voltage 11 Table 12 Basic error limits under reference current 12 Table 13 Percentage change due to influence amount Change limit 12 Table 14 Starting current of the instrument 13 Table A.1 Test items and sequence 16

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. The issuer of this document does not assume responsibility for the identification of these patents. This standard is proposed by the China Machinery Industry Federation. This standard by the National Electrotechnical Instrumentation Standardization Technical Committee (SAC/TC104) centralized. The drafting unit of this standard. Harbin Institute of Electrical Instrument, Guangdong Power Grid Co., Ltd. Electric Power Research Institute, Shenzhen City Star Branch Technology Co., Ltd., Shenzhen Aerospace Tai Ruijie Electronics Co., Ltd., Shenzhen Branch Lu Electronic Technology Co., Ltd., Henan XJ instrument Co., Ltd., State Grid Shandong Electric Power Company Electric Power Research Institute, Holley Technology Co., Ltd., Hunan Institute of Measurement and Testing, Group Co., Ltd., China Electric Power Research Institute, Yantai Oriental Weststone Electric Co., Ltd., China Southern Power Grid Research Institute, Shandong Province Institute of Electric Power Science and Technology, State Grid, Hebei Electric Power Research Institute, Zhangzhou Branch to Electric Co., Ltd., China Electrical Instrument Quality Supervision and Inspection Center, Shanghai Belling Co., Ltd., Hangzhou 100 rich electronic technology Co., Ltd., Shanghai Jinling Intelligent Meter Co., Ltd., State Grid Chongqing Electric Power Company Electric Power Research Institute, Ningbo Samsung Medical Electric Co., Ltd. Co., Ltd., Juquan Optoelectronics Technology (Shanghai) Co., Ltd., Delixi Group Instrument Co., Ltd., Ningbo Weiji Electric Power Technology Co., Ltd. Company, Nanjing Cheung Green Energy Technology Co., Ltd., Yunnan Power Grid Co., Ltd. Electric Power Research Institute, Zhejiang Chentai Technology Co., Ltd. the company. The main drafters of this standard. Zhao Wei, Li Wanhong, Zhang Dengqing, Huang Jianzhong, Chen Bo, are Zhou, Xu Min, Song Xiqiang, Luo Yurong, Li Qingxian, Li Xianhuai, Liu Fenjun, Xiao Yong, Chen Wenxin, Du Yan, Yang Mei, Zhu Binruo, Zhou Lixia, Xu Huifeng, Shao Fengyun, Fei Yuhang, Wu Weiying, Ding Hengchun, You Xiyang, Hu Zhigang, Zheng Wenchang, Wang Yanglong, Wu Weizong, He Juntao, Cao Min, Xiang Chao. Static DC energy meter

1 Scope

This standard specifies the terms, requirements, test methods and inspection rules for stationary DC meters (hereinafter referred to as meters). This standard applies only to newly manufactured instruments with input voltages not exceeding 1000V. This standard does not apply to the following. --- input voltage exceeds 1000V; --- DC standard table; --- portable instrument.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. Environmental conditions for the application of electrical and electronic products - Part 1. Storage Environmental conditions for the application of electrical and electronic products - Part 2. Transportation GB/T 4798.2-2008 General technical requirements for packaging of electromechanical products GB/T 13384-2008 GB/T 16935.1-2008 Insulation coordination of equipment in low voltage systems - Part 1. Principles, requirements and tests GB/T 17215.211-2006 General requirements, test and test conditions for alternating current measuring equipment - Part 11. Measuring equipment Special requirements for multifunctional electric energy meters GB/T 17215.301-2007 GB/T 17215.321-2008 Particular requirements for alternating current measuring equipment - Part 21. Static active energy meters (Class 1 and level 2) AC measurement rates and load control - Part 21. Particular requirements for time switches GB/T 17215.421-2008. GB/T 17626.11-2008 Electromagnetic compatibility test and measurement techniques Immunity to voltage sags, short interruptions and voltage variations test GB/T 17626.29-2006 Electromagnetic compatibility test and measurement technology DC power supply input port voltage sag, short interrupt and Voltage immunity test GB/T 17627.1-1998 High voltage test technology for low voltage electrical equipment Part 1. Definitions and test requirements Basic technical conditions for automotive electrical equipment IEC 61010-1..2010 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1. General requirements (Safetyre- quirementsforelectricalequipmentformeasurement, control, andlaboratoryuse-Part 1. General requirements

3 terms and definitions

The following terms and definitions apply to this document. 3.1 By the DC current (or on behalf of the DC current voltage) and DC voltage on the solid (electronic) components and generated with the measured electrical energy is proportional to ......

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