GB/T 1094.10-2022
Power transformers— Part 10：Determination of sound levels (English Version)

Standard No.: GB/T 1094.10-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 1094.10-2022
Replace: GB/T 1094.10-2003

Scope: This document describes the measurement method of sound pressure and sound intensity, and in order to determine the sound power level of transformers, reactors and cooling equipment installed. Note: The term "transformer" in this document refers to "transformer and reactor". These methods apply to transformers and reactors in compliance with GB/T 1094.1, GB/T 1094.6 and GB/T 18494 (all parts) and the cooling equipment in which they are installed (regardless of whether they are installed directly on the transformer or placed independently). This document applies to noise measurements performed in factories. For the measurement in the field, due to the influence of adjacent objects (including other transformers), the measurement conditions in the field are quite different from those in the factory. However, when it is necessary to perform noise measurements on site, the general rules given in this document can still be followed.

GB/T 1094.10-2022 Referenced Document

GB/T 1094.1-2013 Power transformers―Part 1: General
GB/T 13499-2002 Power transformer application guide
GB/T 16404-1996 Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 1: Measurement at discrete points
GB/T 16404.2-1999 Acoustics--Determination of sound power levels of noise sources using sound intensity--Part 2: Measurement by scanning
GB/T 17561 Instruments for the measurement of sound intensity--Measurement with pairs of pressure sensing microphones
GB/T 36075.2 Acoustics—Measurement of room acoustic parameters—Part 2: Reverberation time in ordinary rooms
GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane
GB/T 3785.1 Electroacoustics—Sound level meters—Part 1: Specifications*， 2023-05-23 Update
GB/T 3785.2 Electroacoustics—Sound level meters—Part 2: Pattern evaluation tests*， 2023-05-23 Update

2022 GB/T 1094.10-2022 Power transformers— Part 10：Determination of sound levels
2003 GB/T 1094.10-2003 Power transformers--Part10: Determination of sound levels
1987 GB/T 7328-1987 Determination of transformer and reactor sound levels