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DL/T 2036-2019 English PDF

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DL/T 2036-2019: Calculation method of audible noise from high voltage overhead
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
DL/T 2036-2019	189	Add to Cart	3 days	Calculation method of audible noise from high voltage overhead	Valid

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Basic data

Standard ID: DL/T 2036-2019 (DL/T2036-2019)
Description (Translated English): Calculation method of audible noise from high voltage overhead
Sector / Industry: Electricity & Power Industry Standard (Recommended)
Classification of Chinese Standard: F20
Classification of International Standard: 29.240
Word Count Estimation: 8,856
Date of Issue: 2019-06-04
Date of Implementation: 2019-10-01
Quoted Standard: GB 3096-2008
Issuing agency(ies): National Energy Administration
Summary: This standard specifies the calculation method for the audible noise of high-voltage AC overhead transmission lines. This standard applies to the calculation of the audible noise level of high-voltage AC overhead transmission lines in normal operation from 110kV to 1000kV. The audible noise generated by the transmission line needs to be corrected when the altitude is above 500m.

DL/T 2036-2019: Calculation method of audible noise from high voltage overhead

---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.
Calculation method of audible noise from high voltage overhead AC power transmission lines ICS 29.240 F 20 Record number. 63143-2018 People's Republic of China Electric Power Industry Standard The audible noise calculation method of high voltage AC overhead transmission lines 2019-06-04 released 2019-10-01 implementation Issued by National Energy Administration

Foreword...II 1 Scope...1 2 Normative references...1 3 Terms and definitions...1 4 Calculation of audible noise of AC line transmission line...2 Appendix A (informative appendix) Calculation method of conductor surface potential gradient...3 Appendix B (informative appendix) BPA (Bonville Electric Power Agency) audible noise sound power calculation formula...5 Appendix C (informative appendix) Examples of audible noise calculation for transmission lines...6 References...7

Foreword

Appendix A, Appendix B and Appendix C of this standard are informative appendices. This standard was proposed by the Standardization Management Center of the China Electricity Council. This standard is under the jurisdiction and interpretation of the National Electromagnetic Compatibility Standardization Technical Committee (SAC/TC 246). The organization responsible for drafting this standard. China Electric Power Research Institute Co., Ltd., North China Electric Power University, State Grid Co., Ltd., Power Regulation Planning Design Institute, State Grid Shandong Electric Power Company Electric Power Research Institute. The main drafters of this standard. Wan Baoquan, He Wangling, Chen Yuchao, Tang Jian, Qian Zheyuan, Liu Xingfa, Li Ni, Ni Yuan, Zhou Bing, Wang Yan Zhao, Hu Jingzhu, Zhao Jun, Liu Jian D, Li Wenfu, Huang Rui, Yu Yao, Wu Guanbin. The opinions or suggestions during the implementation of this standard are fed back to the Standardization Management Center of China Electricity Council (No. 2 Baiguang Road, Beijing) One, 100761). The audible noise calculation method of high voltage AC overhead transmission lines

1 Scope

This standard recommends the calculation method for audible noise of high voltage AC overhead transmission lines. This standard is applicable to the calculation of the audible noise level of high-voltage AC overhead transmission lines operating normally from 110kV to 1000kV. The audible noise generated by transmission lines at altitudes above 500m needs to be corrected.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB 3096-2008 Acoustic Environmental Quality Standard

3 Terms and definitions

The following terms and definitions defined in GB 3096-2008 apply to this document. 3.1 Audible noise of transmission lines The audible noise produced by the corona discharge of the transmission line is called the audible noise of the transmission line. 3.2 Sound power Sound energy passing through a certain area per unit time. 3.3 Sound power level Lw The base 10 logarithm of the ratio of sound power to reference sound power, usually in dB, and the reference sound power must be specified. Common base The quasi-sound power is 1pW (10-12W). Note. The frequency weighting or bandwidth used must be indicated, such as A-weighted sound power level (LWA). 3.4 Cumulative sound level An index used to evaluate the temporal statistical distribution characteristics of noise intensity during the measurement period, which refers to a certain percentage of the cumulative time in the measurement period The minimum value of A sound level, expressed in LN, in dB(A). The meanings of L5 and L50 in this standard are as follows. Rainy day L5 value. the value that the sound level A exceeds 5% of the time on a rainy day, which is equivalent to the value of the audible noise of transmission lines under heavy rain conditions. Rainy day L50 value. The value that A sound level exceeds 50% of the time in a rainy day, which is equivalent to the average median value of the audible noise of a transmission line in a rainy day.

4 Calculation of audible noise of AC transmission lines

4.1 Calculation formula of audible noise A-weighted sound power level of single-phase conductor Audible noise generated by transmission lines under heavy rain conditions. 4.2 Calculation formula for L5 value of audible noise of transmission line in rainy day For the A-weighted sound level of audible noise generated by polyphase lines, the L5 value in rainy days can be calculated according to formula (2). 4.3 Calculation formula of L50 value of audible noise of transmission line in rainy day The L50 value of the audible noise of transmission lines in rainy weather can be calculated by formula (3).

Appendix B

(Informative appendix) BPA (Bonwell Electric Power Agency, USA) audible noise sound power calculation formula

Appendix C

(Informative appendix) Examples of audible noise calculation for transmission lines Figure C.1 Schematic diagram of the distance between the traverse and the observation point ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of DL/T 2036-2019_English be delivered?

Answer: Upon your order, we will start to translate DL/T 2036-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of DL/T 2036-2019_English with my colleagues?

Answer: Yes. The purchased PDF of DL/T 2036-2019_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.