GB8108-2014
Vehicle electronic sirens
车用电子警报器
GB 8108-2014 is a current mandatory Chinese national standard for Vehicle electronic sirens. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jul 1, 2015.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
GB 8108-2014 applies to vehicle electronic sirens specifically designed and installed on emergency vehicles, including police cars, fire engines, ambulances, and engineering rescue vehicles. This standard is mandatory for all manufacturers producing emergency warning equipment for the Chinese market. It covers the classification, performance, testing, and installation of these devices, and is not applicable to general civilian vehicle horns or aftermarket audio systems.
Technical requirements
The standard specifies comprehensive physical, electrical, and acoustic requirements for vehicle electronic sirens. It mandates strict criteria for structural integrity, ensuring no rust, coating peeling, or mechanical damage on the surface. Manufacturers must ensure all switches and buttons are clearly labeled in Chinese. Regarding electrical and functional performance, the standard sets mandatory limits for output power, conversion efficiency, and leakage current. It requires the siren to operate reliably under specific voltage ranges (e.g., DC 9.0V to 16.0V for 12V systems) and withstand polarity reverse connection. The siren must maintain stable acoustic output without electrical failures under varying power conditions. Acoustically, the standard defines precise sound pressure levels (A-weighted) based on the siren's rated power and testing angles. It also specifies exact audio frequency ranges and repetition periods for different tone types, such as emergency frequency modulation and two-tone alternation, tailored for specific vehicle types. Compliance with these acoustic parameters is critical for type approval. Furthermore, the standard outlines rigorous environmental and mechanical durability requirements. The equipment must withstand high temperature, low temperature, constant heat and humidity, rain, dust, vibration, and collision tests. The siren must function normally during and after these environmental stress tests without permanent structural deformation.
Testing methods
GB 8108-2014 outlines a series of rigorous evaluation procedures to verify compliance. Key tests include acoustic pressure level measurements conducted in an approximate free-field environment using Class 1 sound level meters, and audio frequency analysis to verify tone cycles and frequencies. Environmental durability is assessed through high/low temperature tests, constant humidity tests, rain and dust resistance tests, referencing standards like GB/T 2423. Additionally, mechanical robustness is evaluated via vibration and collision tests, alongside a 200-hour continuous operation reliability test. Manufacturers must submit three complete sample sets for comprehensive type testing.
FAQs
What products are regulated under GB 8108-2014?
This standard applies to electronic sirens specifically designed for installation on police cars, fire engines, ambulances, and engineering rescue vehicles. It does not cover sirens designed for general civilian or commercial use.
Are there any updates from the previous version of GB 8108?
The 2014 version introduces several updates, including the addition of requirements for electrical components, basic functions, output power, and conversion efficiency. It also modifies environmental resistance criteria and adds specific installation guidelines, while removing the voltage fluctuation test from the previous GB 8108-1999.
How does GB 8108-2014 differ from international standards like SAE J1849?
While the standard references general environmental and acoustic testing methodologies consistent with international norms (such as IEC standards), it establishes mandatory acoustic frequency and tone cycles uniquely tailored to Chinese emergency vehicle protocols. Manufacturers must adhere strictly to these specific GB acoustic profiles rather than relying solely on SAE or ISO parameters.
The summary above provides a high-level overview of GB 8108-2014. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 8108-2014 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- A91
- ICS
- 13.320
- Competent department
- Ministry of Public Security
- Technical committee
- Ministry of Public Security
Relationships
Replaces:GB 8108-1999