GB 10069.3-2008: [GB/T 10069.3-2008] Measurement of airborne noise emitted by rotating electrical machines and the noise limits -- Part 3: Noise limits

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Scope

This part.
--- A test method for determining the sound power level of a rotating electrical machine.
--- For GB 755, according to the cooling method specified in GB/T 1993-1993 and according to GB/T 4942.1-2006
Rotating electric machine with protection classification and the following characteristics, stipulates the A-weighted sound power under the factory acceptance test method when the grid is powered
Level maximum.
● Both AC motors and DC motors are standard designs; they are reduced in terms of electrical, mechanical or acoustical aspects.
Except for designs that are specifically modified for sound power levels;
● Rated output from 1kW (kVA) to 5500kW (kVA);
● The speed does not exceed 3750r/min.
--- Provides noise level determination guidelines for cage induction motors powered by frequency converters.
The purpose of this part is to specify the maximum noise of the motor's emitted air noise, which is characterized by power, speed and load.
Power stage LWA, in dB(A); and specifies the test method and test conditions for determining the sound power level of the motor, providing motor noise
Whether to meet the assessment criteria for the specified maximum sound power level. This section does not provide corrections to the pure tone characteristics.
In some practical situations, such as hearing protection, a sound pressure level at a distance from the motor is required. This data is tested by Article 7 by standard.
The environment is obtained.
Note 1. This section considers that in consideration of economic factors, standard noise-grade motors that require additional measures in non-critical applications or to reduce motor noise can be used.
Note 2. When it is required to meet the sound power level requirements of Tables 1 and 2, the manufacturer and the buyer must agree, due to special electrical, mechanical or acoustic aspects.
The design may include some additional measurements.

Basic Data

Standard ID	GB 10069.3-2008 (GB10069.3-2008)
Description (Translated English)	[GB/T 10069.3-2008] Measurement of airborne noise emitted by rotating electrical machines and the noise limits -- Part 3: Noise limits
Sector / Industry	National Standard
Classification of Chinese Standard	K20
Classification of International Standard	29.160
Word Count Estimation	12,118
Date of Issue	2008-06-19
Date of Implementation	2009-06-01
Older Standard (superseded by this standard)	GB 10069.3-2006
Quoted Standard	GB 755-2008; GB/T 1993-1993; GB/T 3768-1996; GB/T 4942.1-2006; GB/T 6881.1-2002; GB/T 6881.2-2002; GB/T 6881.3-2002; GB/T 6882-1986; GB/T 16404.1-1996; GB/T 16404.2-1996; GB/T 16538-1996; GB/T 20161-2006; ISO 3744; OSP 4871
Adopted Standard	IEC 60034-9-2007, IDT
Regulation (derived from)	Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This Chinese standard specifies the rotation of the motor sound power level determination test methods. For compliance GB 755, according to GB/T 1993-1993 and cooling methods prescribed by GB/T 4942. 1-2006 prescribed protective classification and has the following features rotating motor, provides power supply factory acceptance test methods under the A-weighted sound power level Max: on the AC motor or DC motor, are standard design, pairs especially from electrical, mechanical, or acoustical aspects to reduce the sound power level specially modified except design, rated output from 1kW (kVA) to 5500kW (kVA), speed does not exceed 3750r/min. Provided by the drive cage induction motors powered noise level determined guidelines.