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GBZ25425-2010 English PDF

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US$154.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GBZ25425-2010: Declaration of apparent sound power level and tonality values for the wind turbine
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/Z 25425-2010	154	Add to Cart	3 days	Declaration of apparent sound power level and tonality values for the wind turbine	Valid

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Basic data

Standard ID: GB/Z 25425-2010 (GB/Z25425-2010)
Description (Translated English): Declaration of apparent sound power level and tonality values for the wind turbine
Sector / Industry: National Standard
Classification of Chinese Standard: F11
Classification of International Standard: 27.180
Word Count Estimation: 8,835
Date of Issue: 2010-11-10
Date of Implementation: 2011-01-01
Quoted Standard: GB/T 22516; ISO 4871-1996; ISO 7574-1; ISO 7574-2; ISO 7574-3; ISO 7574-4
Adopted Standard: IEC/TS 61400-14-2005, IDT
Regulation (derived from): ?National Standard Approval Announcement 2010 No.8 (Total No.163)
Issuing agency(ies): Ministry of Health of the People's Republic of China
Summary: This standard specifies the determination of the nominal batch depending on wind turbine sound power level and sound values ??guidelines. The technical guidance document applies to determine the award of nominal wind turbines apparent sound power level and sound values.

GBZ25425-2010: Declaration of apparent sound power level and tonality values for the wind turbine

---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.
Declaration of apparent sound power level and tonality values for the wind turbine ICS 27.180 F11 People's Republic of China national standardization of technical guidance documents Wind Turbine Nominal apparent acoustics power level and tone value (IEC TS61400-14.2005 (E) Windtubines-Part 14.Declarationof apparentsoundpowerlevelandtonalityvalues, IDT) 2010-11-10 released 2011-01-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This instructional technical document has been prepared for this purpose. --- Promote the standardization of wind turbine and wind turbine international standardization work; --- To promote the continuous improvement of the quality of wind turbine products in China and enhance the competitiveness of products in the international market. This technical document is the equivalent of IEC TS61400-14.2005 wind turbine generator set Part 14. Nominal apparent acoustic power Level and tone (English version). This guideline is equivalent to translation IEC TS61400-14.2005. For ease of use, the following technical document has the following editorial changes. --- The preface and introduction to IEC TS have been deleted in this guidance document and the preface of this guidance document has been added. --- This part of IEC TS61400 read "This Guidance Technical Paper"; --- Use the decimal point "." Instead of as a decimal point comma ","; --- For the reference of other international standards to be adopted as our standard instead of the corresponding international standards (see this instructional text Chapter 2); --- Change the method of measuring apparent acoustical power level and tone value given in IEC TS 61414-11 to "in the scope" The present Guidance Technique The documentation is applicable to determining the nominal apparent sound power level and tone of a wind turbine. " This guideline is for reference only. This guidance document is proposed by China Machinery Industry Federation. This guidance document is subject to the National Wind Machinery Standardization Technical Committee (SAC/TC5). The guidance of the technical documents responsible for the drafting unit. National Wind Machinery Standardization Technical Committee Secretariat, Guohua Energy Investment Limited the company. The main drafters of this technical guidance document. Wang Jianping, Gao Hui, Song Jingxuan, Liu Lizhen. Wind Turbine Nominal apparent acoustics power level and tone value

1 Scope

This Guidance Document specifies the guidelines for determining the nominal apparent sound power level and sound level of a batch wind turbine. This guidance document is applicable to the determination of the nominal apparent sound power level and sound level of a batch wind turbine.

2 Normative references

The following documents contain provisions which, through reference in this Guidance Document, become the provisions of this Guidance Note document. All dated Reference documents, all subsequent amendments (not including errata content), or revisions do not apply to this guidance document, however, drums Recipients of the agreement based on this Guidance Document shall be encouraged to study whether the latest versions of these documents may be used and all undated references The latest version of this document applies to this guidance document. GB/T 22516 wind turbine noise measurement method (GB/T 22516-2008, IEC 61400-11.2002, IDT) Acoustics - Determination and verification of nominal radiated noise of machinery and equipment ISO 4872-1996 ISO 7574 (all parts) Acoustics Determination and verification of mechanical equipment, the nominal noise emission values used in statistical methods

3 Terms and definitions

The following terms and definitions apply to this guidance document. 3.1 Repeatability standard deviation σR standarddeviationofreproducibility The standard deviation of noise obtained under repeated conditions, that is, repeated use of the same noise measurement method on the same wind turbine at different times And under different conditions (different wind direction, different personnel, different measurement equipment) measured standard deviation. 3.2 Manufacturing standard deviation σp standarddeviationofproduction Under repeated conditions (same surveyor, the same measuring equipment), using the same noise measurement method, the same batch of different wind Standard deviation of noise generated by the generator set. 3.3 Composite standard deviation σt totalstandarddeviation From (1) calculated. σt = σ2p σ2R (1) 3.4 Batch batch The same type, the same model, with the specifications of the wind turbine constitutes a group. The same number of wind turbines with the same nominal apparent sound power Level and tone characterization. Wind turbine components involved in determining nominal values are described in the manufacturer's instructions. NOTE Even though slight changes to the wind turbine design may affect the apparent sound power level and the sound level, the wind turbine parameters given in Appendix B Information on the measurement of noise characteristics.

4 Overview

ISO 4871 and ISO 7574 give a general method for the determination and verification of nominal values of noise emissions from machinery and equipment. For different batches, ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GBZ25425-2010_English be delivered?

Answer: Upon your order, we will start to translate GBZ25425-2010_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 GBZ25425-2010_English with my colleagues?

Answer: Yes. The purchased PDF of GBZ25425-2010_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.