GB16808-2025
Combustible gas alarm control units
可燃气体报警控制器
GB 16808-2025 is an upcoming mandatory Chinese national standard for Combustible gas alarm control units. It appears in the Construction compliance cluster with a product safety focus and has an implementation date of Aug 1, 2026.
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
This standard applies to the design, manufacturing, and inspection of combustible gas alarm control units used in industrial and civil buildings. It covers various classifications of controllers, including indoor and outdoor types, as well as independent, zone, centralized, and zone-centralized compatible models. It is mandatory for all manufacturers producing gas alarm controllers for the Chinese market.
Technical requirements
The standard specifies comprehensive performance requirements for combustible gas alarm control units. It mandates clear functional classifications based on working methods (bus-line or multi-line), usage environments (indoor or outdoor), and application modes (independent, zone, centralized, or compatible). Controllers must feature robust main and backup power systems, including specific restrictions on battery chemistry, such as the prohibition of lithium cobalt oxide and ternary lithium batteries. For operational functionality, the standard dictates strict requirements for alarm signal processing, including low and high-limit alarms, fault alarms, and gas concentration display accuracies. Controllers must support advanced features like information display hierarchies, shielding functions, and self-test capabilities. Additionally, they must maintain extensive event logging, storing a minimum of 999 alarm and fault records with precise timestamps. The standard also outlines strict electromagnetic compatibility (EMC) and environmental endurance criteria. Controllers must withstand various climate and mechanical stress tests, such as high/low temperature operation, constant damp heat, vibration, and collision. Furthermore, it introduces new requirements for communication with fire control room graphic display devices and system compatibility between zone and centralized controllers.
Testing methods
The standard outlines a rigorous series of testing procedures to verify compliance. Key tests include the combustible gas alarm function test, fault alarm test, and gas concentration display test. It also mandates electrical safety tests such as insulation resistance, leakage current, and electrical strength tests. Environmental and mechanical robustness are evaluated through low/high temperature operation tests, constant damp heat tests, vibration tests, and collision tests. Additionally, the standard specifies an enclosure burning performance test for non-metallic housings to ensure fire safety.
FAQs
What products are regulated under GB 16808-2025?
The standard applies to combustible gas alarm control units used in industrial and civil buildings, covering their design, manufacturing, and inspection. It is mandatory for all manufacturers producing these controllers for the Chinese market.
Are there any significant updates in GB 16808-2025 compared to the 2008 version?
The 2025 version introduces classifications based on usage environment and application method. It adds new requirements for enclosure protection, enclosure burning performance, backup power restrictions (prohibiting lithium cobalt oxide and ternary lithium batteries), and communication functions with fire control room graphic display devices.
How does GB 16808-2025 differ from international ISO standards?
The standard references several Chinese national standards for testing methods, such as GB/T 17626.2 for electrostatic discharge and GB/T 16838 for environmental test methods. While it aligns conceptually with international EMC and environmental testing practices, manufacturers must specifically verify compliance with the referenced GB standards rather than generic ISO or IEC equivalents.
What are the specific battery requirements for combustible gas alarm control units in this standard?
The standard mandates that the backup power supply must not use lithium cobalt oxide or ternary lithium batteries. Additionally, controllers must display the voltage and capacity of the backup power and provide segmented protection for battery packs with a rated voltage greater than or equal to 12V.
What are the enclosure protection requirements for these controllers?
The standard requires controllers to have an IP rating of at least IP20 for indoor use and IP54 for outdoor use, in accordance with GB/T 4208-2017. Non-metallic enclosures must also meet specific burning performance requirements outlined in the standard's normative annex.
The summary above provides a high-level overview of GB 16808-2025. 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 16808-2025 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C81
- ICS
- 13.220.20
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China
Relationships
Replaces:GB 16808-2008 (Current)