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GB/T 46048-2025: Electric earth-moving machinery - Methods of noise test
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Electric earth-moving machinery - Methods of noise test
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Basic data | Standard ID | GB/T 46048-2025 (GB/T46048-2025) | | Description (Translated English) | Electric earth-moving machinery - Methods of noise test | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P97 | | Classification of International Standard | 53.100 | | Word Count Estimation | 22,289 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 46048-2025: Electric earth-moving machinery - Methods of noise test---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT46048-2025
ICS 53.100
CCSP97
National Standard of the People's Republic of China
Test method for noise from electric earth-moving machinery
Released on August 29, 2025
Implementation on March 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 measuring instruments 1
5 Test Environment 2
6 Measurement of time-averaged A-weighted sound pressure level 2
7.Regulations on the configuration, operation and position of the machine 3
8 Determination of A-weighted sound power level and driver position emission sound pressure level 4
9 Determination of Loudness, Sharpness and Prominence Ratio at the Driver's Position 5
10 Recorded Information 5
11 Reported Information 6
Appendix A (Informative) Electric Earthmoving Machinery Noise Test Record Sheet 7
Appendix B (Informative) Measurement and determination of loudness, sharpness and prominence ratio at the driver's position 10
Reference 14
Preface
This 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 Earthmoving Machinery (SAC/TC334).
This document was drafted by. Jiangsu Xugong Guozhong Laboratory Technology Co., Ltd., Tianjin Engineering Machinery Research Institute Co., Ltd., Shandong Lingong Machinery
Cheng Machinery Co., Ltd., Shaanxi Tongli Heavy Industry Co., Ltd., Boreton (Shandong) New Energy Vehicle Co., Ltd., Shandong Kenshi Heavy Industry Machinery
Co., Ltd., Fujian Jingong New Energy Technology Co., Ltd., Inner Mongolia Northern Heavy Duty Truck Co., Ltd., Longgong (Fujian) Machinery Co., Ltd.
Shantui Construction Machinery Co., Ltd., Xiamen XGMA Machinery Co., Ltd., China Machinery Science and Technology (Beijing) Vehicle Inspection Engineering Research Institute Co., Ltd.
Company, Shanxi Taizhong Engineering Machinery Co., Ltd., Guangxi Liugong Machinery Co., Ltd., Sinomach Changlin Co., Ltd., Hyde Acoustics
(Shanghai) Technology Co., Ltd., Hubei Huazhong Electric Power Technology Development Co., Ltd., and Shandong Hi-Speed Engineering Equipment Co., Ltd.
The main drafters of this document are. Zhuang Chao, Chen Baoqing, Xu Shoujun, Zhao Qiyuan, Lu Daiji, He Guangmin, Zhao Jianjie, Song Liming, Le Furong,
Ding Jiamin, Huang Yanqun, Huang Haichao, Qiao Xiaojun, Duan Chuandong, Shi Wei, Mao Yang, Yu Mingjun, Ding Xijiu, Song Tianjia, Wu Hongli, Yin Manyi, Wang Xiujing,
Wang Sanlong.
Test method for noise from electric earth-moving machinery
1 Scope
This document describes the method for measuring the external emitted noise and the driver position noise of electrically powered earth-moving machinery.
This document applies to the determination of noise levels of pure electric earthmoving machinery and hybrid earthmoving machinery as defined in GB/T 44254, fuel cell earthmoving machinery
The measurement of noise of earth-moving machinery and externally powered earth-moving machinery shall be carried out for reference.
2 Normative references
The 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 3767-2016 Acoustics - Determination of sound power level and sound energy level of noise source by sound pressure method - Approximate free field above reflecting surface
Cheng Fa
GB/T 3785.1-2023 Electroacoustics Sound Level Meters Part 1.Specification
GB/T 15173-2010 Electroacoustic sound calibrator
GB/T 25614-2010 Earth-moving machinery - Determination of sound power levels - Dynamic test conditions
GB/T 25615-2010 Earth-moving machinery - Determination of emission sound pressure level at the driver's position - Dynamic test conditions
GB/T 44254 Terminology for electric earth-moving machinery
3 Terms and Definitions
The terms and definitions defined in GB/T 25614-2010, GB/T 25615-2010 and GB/T 44254 apply to this document.
4 Measuring instruments
4.1 Acoustic measurement instruments
4.1.1 The integrating sound level meter or other equivalent measurement system used for measurement shall preferably be a Class 1 sound level meter that meets the requirements of GB/T 3785.1-2023.
Level meter.
4.1.2 Before and after measurement, the entire measurement system should be calibrated using a Class 1 accuracy sound calibrator that complies with GB/T 15173-2010.
calibration.
4.2 Speed measuring instrument
The measurement accuracy of the speed measuring instrument should not be less than ±2%.
4.3 Meteorological parameter measuring instruments
The measurement accuracy of meteorological parameter measuring instruments should meet the following requirements.
---Thermometer. ±1℃;
---Anemometer. ±1m/s.
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