GB/Z 38251-2019 Active National standards

GB/Z 38251-2019 Acoustics—Calculation of sound attenuation during propagation for electrical converter station—Engineering method

GB/Z 38251-2019 Acoustics—Calculation of sound attenuation during propagation for electrical converter station—Engineering method

Publish Date: 2019-10-18 Implement Date: 2020-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/Z 38251-2019

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Acoustic metrology

ICS Name: Acoustics and acoustic measurement

Publish Date: 2019-10-18

Implement Date: 2020-05-01

Pages: 32 pages

Scope

This guidance technical document proposes a calculation process for calculating the sound propagation attenuation of converter stations, provides a method for describing sound sources in converter stations (including a simplified method for non-coherent sound, directional calculation of individual capacitor towers and three-phase capacitor tower groups, and a method for correcting sound power), and a method for calculating the total noise contribution value at the prediction point.

Development Information

Word Count: 60 Thousand words Pages: 32 pages

Referenced Standards

GB/T 3222.2-2009 Acoustics—Description,measurement and assessment of environmental noise—Part 2:Determination of environmental noise levels GB/T 32524.1-2016 Acoustics—Determination of sound power level and directivity character of power capacitor unit using sound pressure—Part 1:Precision method for hemi-anechoic rooms GB/T 3222.1-2006 Acoustics—Description, measurement and assessment of environmental noise—Part 1:Basic quantities and assessment procedures GB/T 3222.1-2022 Acoustics—Description,measurement and assessment of environmental noise—Part 1:Basic quantities and assessment procedures GB/T 3947-1996 Acoustical terminology GB/T 17247.1-2000 Acoustics—Attenuation of sound during propagation outdoors—Part 1:Calculation of the absorption of sound by the atmosphere GB/T 17247.2-1998 Acoustics—Attenuation of sound during propagation outdoors—Part 2:General method of calculation GB/T 17247.2-1998 Acoustics—Attenuation of sound during propagation outdoors—Part 2:General method of calculation

Related Standards

GB/T 3238-1982 Active

GB/T 3238-1982 Acoustical levels and refrence quantities

Publish Date: 1982-06-08

GB/T 3240-1982 Active

GB/T 3240-1982 Preferred frequencies for the acoustical measurement

Publish Date: 1982-06-08

GB/T 3785-1983 Replaced

GB/T 3785-1983 Electric, sonic properties and measuring methods for sound level meters

Publish Date: 1983-06-25

GB/T 5265-1985 Replaced

GB/T 5265-1985 Measurement of underwater noise

Publish Date: 1985-07-26

GB/T 7966-1987 Replaced

GB/T 7966-1987 Acoustics—Ultrasonic power measurement in the frequency range 0.5～10MHz

Publish Date: 1987-06-22

GB/T 11452-1989 Abolished

GB/T 11452-1989 Guide to hearing aid standards

Publish Date: 1989-07-04