Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 28543-2021 English PDF

Q: How long will the true-PDF of English version of GB/T 28543-2021 be delivered?

Upon your order, we will start to translate GB/T 28543-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of GB/T 28543-2021_English with my colleagues?

Yes. The purchased PDF of GB/T 28543-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

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.

Q: Should I purchase the latest version GB/T 28543-2021?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28543-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$339.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28543-2021: Noise measurement method on power capacitors
Status: Valid

GB/T 28543: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28543-2021	339	Add to Cart	4 days	Noise measurement method on power capacitors	Valid
GB/T 28543-2012	519	Add to Cart	3 days	Noise measurement of power capacitors	Obsolete

Similar standards

GB/T 11024.4 GB/T 11024.2 GB/T 34870.1 GB/T 22582 GB/T 19749.4

Basic data

Standard ID: GB/T 28543-2021 (GB/T28543-2021)
Description (Translated English): Noise measurement method on power capacitors
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K42
Word Count Estimation: 18,123
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 28543-2021: Noise measurement method on power capacitors

---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.
Noise measurement method on power capacitors ICS 31.060.70 CCSK42 National Standards of People's Republic of China Replace GB/T 28543-2012 Power capacitor noise measurement method Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Noise measurement 4 5 Test report 6 Appendix A (Normative) Microphone arrangement on noise measurement surface of power capacitor 8 Appendix B (informative) Power capacitor noise test example 9 Appendix C (informative) Typical format of power capacitor noise test report 11 Reference 14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 28543-2012 "Power Capacitor Noise Measurement Method", compared with GB/T 28543-2012, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows. ---Modified the scope of application (see Chapter 1, Chapter 1 of the.2012 edition); ---Updated normative reference documents (see Chapter 2, Chapter 2 of the.2012 edition); ---The terms "reference sound pressure", "measurement surface", "A-weighted sound pressure level" and "apparent directivity index" have been added, and the terms and definitions have been deleted "Measurement profile", "measurement surface", "fundamental power" and its definitions (see Chapter 3, see Chapter 3 of the.2012 edition); ---Modified the capacitor power injection requirements and deleted the current injection value regulations (see 4.1.1,.2012 edition 4.1.1); ---Added product layout and measurement conditions (see 4.4); ---Modified the measuring point layout and layout rules (see 4.5, 4.5 in the.2012 edition); ---Added the normative Appendix A "Microphone Arrangement on the Noise Measurement Surface of Power Capacitors" (see Appendix A); ---Added informative Appendix B "Power Capacitor Noise Test Example" (see Appendix B); ---Added references (see references). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Power Capacitor Standardization Technical Committee (SAC/TC45). Drafting organizations of this document. China Electric Power Research Institute Co., Ltd., Xi'an High Voltage Apparatus Research Institute Co., Ltd., China Southern Power Grid Division Research Institute Co., Ltd., Xi’an Jiaotong University, Guilin Power Capacitor Co., Ltd., Wuxi Sunjing Power Capacitor Co., Ltd., Shanghai Siyuan Power Capacitor Co., Ltd., State Grid DC Construction Company, Guangdong Fengming Electronic Technology Co., Ltd., State Grid Beijing Economic and Technical Research Institute Research Institute Co., Ltd., Herong Electric Co., Ltd., Xi'an ABB Power Capacitor Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Shaoxing Power supply company New Northeast Electric Group Power Capacitor Co., Ltd., Xi'an Xidian Power Capacitor Co., Ltd., Nisshin Electric (Wuxi) have Co., Ltd., Wuxi Chenrui New Energy Technology Co., Ltd., Chint Electric Co., Ltd., Shanghai Yongjin Electric Group Co., Ltd., Anhui Tongfeng Electronics Co., Ltd., Xiamen Farah Electronics Co., Ltd., Anhui Feida Electric Technology Co., Ltd., State Grid Anhui Electric Power Co., Ltd. Company Electric Power Research Institute, Hefei Warwick Automation Co., Ltd., Shaoxing Shangyu Power Capacitor Co., Ltd., Anhui Yuanguang Electric Co., Ltd. Company, Foshan Xinyuan Electronics Co., Ltd., Xi'an Huachao Power Group Co., Ltd. The main drafters of this document. Ni Xuefeng, Lin Hao, He Manchao, Yan Fei, Gai Bin, Zhao Xin, Zhang Zuan, Zhu Lingyu, Tian Enwen, Sun Mei, Li Jinyu, Huang Ying, Feng Chunlin, Lu Jiepin, Guo Qingwen, Wu Fangjie, Wang Yao, Zuo Qianglin, Lei Qiaoshu, Yang Xiaoliang, Chen Xiaoyu, Yao Yifeng, Yang Shuyan, Chen Li, Zheng Jin, Hao Zhiyuan, Li Dayan, Shi Bin, Yao Cheng, Fu Zhongxing, Zhao Weifeng, Huang Yunkai, Huang Shunda, Wang Dong, Liu Jing, Hu Zhongsheng, Qin Shaorui, Jiang Junxiang, Chai Diyun, Chen Baifu, Xue Zefeng, Ju Xinling, Wang Zhandong. The previous versions of this document and the documents replaced are as follows. --- First published as GB/T 28543-2012 in.2012; ---This is the first revision. Power capacitor noise measurement method

1 Scope

This document describes the sound pressure level measurement method of the power capacitor unit, and to determine the sound power level of the power capacitor unit. This document applies to shunt capacitor units for AC power systems with a nominal voltage of 1000V and above and a frequency of 50Hz or 60Hz. Yuan, AC filter capacitor unit, DC filter capacitor unit. Refer to implementation for other power capacitor units. This document does not apply to capacitors whose body height is less than 0.8m.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 2900.16-1996 Electrical terminology power capacitor GB/T 3241 Electroacoustic Octave and Fractional Octave Filter GB/T 3767-2016 Acoustic sound pressure method to determine the sound power level and sound energy level of the noise source. Approximate free field above the reflective surface. Cheng Fa GB/T 3785.1-2010 Electroacoustic Sound Level Meter Part 1.Specification GB/T 3947-1996 Acoustic terminology

3 Terms and definitions

GB/T 2900.16-1996, GB/T 3767-2016 and GB/T 3947-1996 and the following terms and definitions apply In this document. 3.1 Noise Intermittent or statistically random unwanted sounds. Note. In this document, it refers specifically to the range of human audible sound. [Source. GB/T 3947-1996, 2.11, with modification] 3.2 Soundpressure When there is a sound wave, the difference between the pressure in the medium and the static pressure. Note 1.In general use, sound pressure is the abbreviation of effective sound pressure, and the unit is Pa [scal] (Pa). The effective sound pressure is the root mean square value of the instantaneous sound pressure over a period of time, This period of time should be an integer multiple of the period or long enough to not affect the calculation result. Note 2.The instantaneous value, average value, peak value, maximum value or peak-to-peak value of sound pressure should be marked as instantaneous sound pressure, average sound pressure, peak sound pressure, maximum sound pressure or Peak-to-peak sound pressure, etc. [Source. GB/T 3947-1996, 2.21] ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 28543-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 28543-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 28543-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 28543-2021_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+ countries

Question 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.

Question 5: Should I purchase the latest version GB/T 28543-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 28543-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.