GB/T 14474-2024 Active National standards

GB/T 14474-2024 Horn loudspeakers—General requirements

Publish Date: 2024-10-26 Implement Date: 2025-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 14474-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Audio equipment, electroacoustic devices

ICS Name: Other audio, video, and audiovisual equipment

Publish Date: 2024-10-26

Implement Date: 2025-05-01

Pages: 24 pages

Scope

This document specifies the product requirements, inspection rules, marking, packaging, transportation, and storage for civilian-use public broadcasting terminals and megaphones.
This document applies to the design, manufacture, and inspection of civilian-use electric megaphones. Megaphones for special purposes and those using other transducer principles may also be referenced for use.

Development Information

Word Count: 36 Thousand words Pages: 24 pages

Replace the following standards

GB/T 14474-1993 General specification for horn loudspeakers

Referenced Standards

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) GB 4943.1-2011 Information technology equipment—Safety—Part 1:General requirements GB 4943.1-2022 Audio/video,information and communication technology equipment—Part 1:Safety requirements GB/T 9254.1-2021 Information technology equipment,multimedia equipment and receivers—Electromagnetic compatibility—Part 1:Emission requirements GB/T 14475-2024 Horn loudspeakers—Measuring methods GB 17625.1-2003 Electromagnetic compatibility—limits—Limits—for harmonic current emissions(equipment input current≤16A per phase GB 17625.1-2012 Electromagnetic compatibility—Limits—Limits for harmonic current emissions(equipment input current ≤16 A per phase) GB 17625.1-2022 Electromagnetic compatibility—Limits—Part 1:Limits for harmonic current emissions(equipment input current ≤16 A per phase) GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 2829-2025 Sampling procedures and tables for periodic inspection by attributes(Apply to inspection of process stability)

Related Standards

GB/T 15521-1995 Abolished

GB/T 15521-1995 Format and classification of digital audio tape cassette system (DAT) used for broadcasting

Publish Date: 1995-04-06

GB/T 15644-1995 Abolished

GB/T 15644-1995 Application of connectors for the interconnection of equipment in audio-visual systems

Publish Date: 1995-07-24

GB 16787-1997 Active

GB 16787-1997 Measurements and limits of radiation of cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz

Publish Date: 1997-05-28

GB 16788-1997 Active

GB 16788-1997 Measurements and limits of immunity of cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1 GHz

Publish Date: 1997-05-28

GB/T 16812-1997 Abolished

GB/T 16812-1997 Technical specification for NICAM-728 digital audio signal transmission with satellite TV channel subcarrier

Publish Date: 1997-05-28

GB/T 16954-1997 Replaced

GB/T 16954-1997 General specification for Ku-band satellite television earth receive-only station

Publish Date: 1997-08-26