GB/T 44932-2024 English PDFUS$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 44932-2024: Testing equipment for DC electrical energy meters Status: Valid
Basic dataStandard ID: GB/T 44932-2024 (GB/T44932-2024)Description (Translated English): Testing equipment for DC electrical energy meters Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: N29 Classification of International Standard: 17.220.20 Word Count Estimation: 26,296 Date of Issue: 2024-12-31 Date of Implementation: 2025-07-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 44932-2024: Testing equipment for DC electrical energy meters---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.ICS 17.220.20 CCSN29 National Standard of the People's Republic of China DC energy meter testing device Released on 2024-12-31 2025-07-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Categories 2 5 Structure and mechanical properties 2 6 Electrical performance 4 7 Metering performance 7 8 Climate Adaptability13 9 Electromagnetic compatibility 13 10 Inspection Rules 13 11 Packaging, transportation and storage 14 Appendix A (Informative) Device Principle Block Diagram 15 Appendix B (Normative) Test items and sequence 16 Figure A.1 Schematic diagram of the standard table method 15 Figure A.2 Principle diagram of standard source method 15 Table 1 Power supply conditions 4 Table 2 Recommended workload limits 5 Table 3 Device output power stability 5 Table 4 Ripple coefficient of device output 6 Table 5 Reference conditions and allowable deviations 7 Table 6 Basic error limits of device output voltage 8 Table 7 Basic error limits of output current of device (current direct output mode) 8 Table 8 Basic error limits of output current of device (small signal voltage output mode) 8 Table 9 Basic error limits of the device (current direct output mode) 9 Table 10 Basic error limits of the device (small signal voltage output mode) 9 Table 11 Error change limit caused by influence quantity 10 Table 12 Experimental standard deviation limits allowed for the device 11 Table 13 Basic error limits of monitoring instruments 12 Table 14 Accuracy level of working standard (table) 12 Table 15 Basic error limits of standard timers 12 Table 16 Climate conditions 13 Table 17 Climate conditions for transportation 14 Table 18 Storage environment conditions 14 Table B.1 Test items and sequence 16ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Electrical Instruments (SAC/TC104). This document was drafted by. Harbin Electric Instrument Research Institute Co., Ltd., State Grid Shandong Electric Power Company Marketing Service Center (Metering Center Center), Shenzhen Xinglong Technology Co., Ltd., Yantai Dongfang Weston Electric Co., Ltd., Changsha Tianheng Measurement and Control Technology Co., Ltd., State Grid Chongqing Electric Power Company Marketing Service Center, China Southern Power Grid Research Institute Co., Ltd., Shenzhen Kelu Electronic Technology Co., Ltd. Company, Guangdong Power Grid Co., Ltd. Measurement Center, State Grid Heilongjiang Electric Power Co., Ltd. Marketing Service Center, Zhejiang Hanpu Electric Power Technology Co., Ltd. Co., Ltd., Ningbo Canaan Intelligent Electric Co., Ltd., State Grid Jiangsu Electric Power Co., Ltd. Marketing Service Center, State Grid Sichuan Electric Power Co., Ltd. Marketing Service Center, China Southern Power Grid Co., Ltd. Ultra-high Voltage Transmission Company, Ante Instrument Group Co., Ltd., State Grid Hubei Electric Power Co., Ltd. Co., Ltd. Marketing Service Center (Metering Center), Zhejiang Grete Electric Co., Ltd., State Grid Hebei Electric Power Co., Ltd. Marketing Service Center Service Center, Qingdao Dingxin Communication Co., Ltd., Wasion Information Technology Co., Ltd., Delixi Group Instrument Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd., Huali Technology Co., Ltd., Heilongjiang Electrical Instruments Engineering Technology Research Center Co., Ltd., State Grid Anhui Electric Power Co., Ltd. Marketing Service Center, Yunnan Power Grid Co., Ltd., Hangzhou Deming Electronics Co., Ltd., Sichuan Industry Measurement and Testing Research Institute, Lianqiao Technology Co., Ltd., State Grid Shanghai Electric Power Company Marketing Service Center, Jiangsu Suyuan Jerry Technology Co., Ltd., Taiyuan Youteok Electronic Technology Co., Ltd., Hangzhou Juhua Technology Co., Ltd., Shenzhen Nortel Instrument Co., Ltd., Qingdao Hi-Tech Communications Co., Ltd., Beijing Jingyi Northern Instrument Co., Ltd., Hubei Huazhong Electric Power Technology Development Co., Ltd., Ningxia Longi Ningguang Instrument Co., Ltd., Shenzhen Sikanda Electronics Co., Ltd., Jiangsu Shengde Electronic Instrument Co., Ltd., Xinjiang Tianfu Energy Co., Ltd. Co., Ltd., Beijing Yubang Electric Power Technology Co., Ltd., Zhejiang Wansheng Intelligent Technology Co., Ltd., China Electric Equipment Shandong Electronics Co., Ltd. Company, Zhejiang Chentai Technology Co., Ltd., Zhongnan Instrument Co., Ltd., Chongqing Huahong Instrument Co., Ltd., Anhui Rongzhao Intelligent Co., Ltd. Co., Ltd., Zhejiang Huayun Information Technology Co., Ltd. The main drafters of this document are. Jing Zhen, Ma Jun, Huang Jianzhong, Zhang Wei, Chen Wenzhi, Xiao Yong, Jiang Bin, Wu Hua, Cheng Yingying, Pan Feng, Yin Xin, Du Yan, Xu Yanming, Jiang Weiping, Li Zhixin, He Peidong, Chen Wenxin, Wen Caiquan, Chen Mingming, Zhao Qiankun, Bao Jin, Zhang Zongji, Wang Yingchun, Peng Yong, Zhang Chuang, Yan Chao, Diao Ruipeng, Qu Jun, Wang Yanglong, Jiang Qun, Tu Yaxin, Zhu Hong, Liu Shanhua, Shen Xin, Li Tengbin, Li Jianqin, Zhou Jingjing, Lu Mu, Wang Lingling, Cao Rui, Shan Jiongxiang, Wan Jiusen, Li Yi, Chen Zhiguang, Zhang Jun, Wang Donglin, Wang Yichun, Zhang Liang, Ying Junyu, Wu Jun, Yu Zhuanli, Liu Wei, Liu Pei, Ding Yi, Wang Taofeng, Yang Fuqin, Feng Shaoyong, Gong Jun, Yin Jie. DC energy meter testing device1 ScopeThis document specifies the structure and mechanical properties, electrical properties, metrological properties of the DC watt-hour meter test device installed in the laboratory. It also describes the requirements for energy, climate adaptability, electromagnetic compatibility, etc., describes the corresponding test methods, and stipulates the inspection rules, packaging, transportation and storage. content. This document applies to the factory inspection and type inspection of newly manufactured DC watt-hour meter inspection devices.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 2900.77-2008 Electrical terminology Electrical and electronic measurements and instrumentation Part 1.General terms for measurement GB/T 4208-2017 Enclosure protection degree (IP code) GB 4824-2019 Limits and measurement methods of radio frequency disturbance characteristics of industrial, scientific and medical equipment GB/T 5169.11 Fire hazard tests for electric and electronic products Part 11.Basic test methods for glow wire/hot wire Hot Wire Flammability Test Method (GWEPT) GB/T 13384 General technical requirements for packaging of electromechanical products GB/T 16935.1-2023 Insulation coordination for equipment in low-voltage power supply systems Part 1.Principles, requirements and tests GB/T 17626.2-2018 Electromagnetic compatibility test and measurement technology Electrostatic discharge immunity test GB/T 42125.1-2024 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1.General requirements JJF1662-2017 Clock Tester Calibration Specification3 Terms and definitionsThe terms and definitions defined in GB/T 2900.77-2008 and the following apply to this document. 3.1 A combination of equipment that provides voltage and current test signals to the DC energy meter under test and determines the measurement error of the DC energy meter under test. Note 1.Hereinafter referred to as “device”. Note 2.See Appendix A for the functional block diagram of the device. 3.2 Ripplewave In a DC voltage or current, the AC component superimposed on the DC. Note. The ripple size is usually expressed in effective value or peak value. This document uses effective value. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 44932-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 44932-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 44932-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 44932-2024_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
