GB14166-2024
Safety-belts and restraint systems for occupants of power-driven vehicles
机动车乘员用安全带和约束系统
GB 14166-2024 is a current mandatory Chinese national standard for Safety-belts and restraint systems for occupants of power-driven vehicles. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jul 1, 2025.
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 safety-belts and restraint systems for adult occupants, as well as ISOFIX and i-Size child restraint systems, installed in M and N category vehicles. It covers forward-facing, rearward-facing, and side-facing seats, along with the installation requirements for safety-belt reminder devices. Manufacturers of passenger cars, commercial vehicles, and child restraint systems must comply with these mandatory specifications. It specifically excludes restraint systems that comply with the specific structural requirements outlined in GB 13094-2017 for buses.
Technical requirements
The standard mandates comprehensive design and performance criteria for safety-belt assemblies and their components. It specifies rigorous requirements for buckles, including anti-inadvertent release mechanisms, minimum contact areas, and the integration of buckle warning lights. Retractors, including emergency locking types (Type 4 and 4N), must meet strict locking thresholds under various vehicle deceleration and webbing acceleration conditions. All mechanical components must be corrosion-resistant and strictly prohibit the use of polyamide 6 material. For webbing, the standard outlines minimum breaking strength requirements after exposure to various environmental conditions such as temperature extremes, humidity, and light exposure. The dynamic test requirements for restraint systems specify maximum displacement limits for the dummy's pelvis and chest, while explicitly prohibiting contact between the dummy's head or torso and the vehicle's rigid interior parts. Manufacturers must ensure that pre-loading devices and force-limiters function correctly without causing occupant injury. Regarding vehicle installation, the standard details the mandatory equipment of safety-belt reminder systems across multiple seating positions. It defines two-level warning signals (visual and auditory) and sets strict criteria for their activation and duration. Additionally, it includes specific warning label requirements for seats equipped with frontal airbags, explicitly prohibiting the use of rearward-facing child restraints in those positions unless the airbag is automatically deactivated.
Testing methods
The standard outlines a series of rigorous evaluation procedures, including dynamic sled testing to simulate frontal impacts and assess occupant kinematics and restraint performance. It mandates corrosion resistance testing using a salt spray chamber, and low-temperature impact testing for rigid and plastic components. Additionally, it specifies procedures for webbing abrasion and micro-slip testing, retractor endurance and emergency locking tests, and dust exposure tests to ensure long-term reliability. Manufacturers must also perform specific evaluations for safety-belt reminder activation using defined loading and driving parameters.
FAQs
What products and vehicle types are regulated under GB 14166-2024?
GB 14166-2024 applies to safety-belts and restraint systems used in M and N category vehicles. It covers forward, rearward, and side-facing seats, as well as the installation of ISOFIX and i-Size child restraint systems and safety-belt reminder devices.
What are the main updates in GB 14166-2024 compared to the 2013 version?
The 2024 version introduces several key updates, including new requirements for buckle warning lights, flexible shoulder height adjusters, and stricter dynamic test rules prohibiting dummy head/knee contact with rigid vehicle parts. It also updates safety-belt reminder specifications and adds i-Size child restraint installation requirements.
How does GB 14166-2024 relate to international standards like ISO?
The standard references several international norms, such as ISO 2575:2010 for control symbols and ISO 6487 for measurement techniques in impact tests. However, it is a mandatory Chinese national standard with specific domestic requirements, including Chinese language warnings and unique dynamic test pulse corridors.
The summary above provides a high-level overview of GB 14166-2024. 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 14166-2024 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Method
- CCS
- T26
- ICS
- 43.040.60
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- National Technical Committee on Automobiles of Standardization Administration of China
Relationships
Replaces:GB 14166-2013