GB14892-2006
Noise limit and measurement for train of urban rail transit
城市轨道交通列车噪声限值和测量方法
GB 14892-2006 is a current mandatory Chinese national standard for Noise limit and measurement for train of urban rail transit. It appears in the Environment compliance cluster with a product safety focus and has an implementation date of Aug 1, 2006.
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 urban rail transit trains, specifically covering both metro and light rail systems. It is applicable to vehicles operating in both underground and above-ground environments. Engineers involved in the manufacturing or compliance testing of urban rail vehicles in China must adhere to these requirements.
Technical requirements
Chapter 4 of this standard is mandatory and establishes the maximum allowable equivalent continuous sound pressure levels ($L_{eq}$) for train noise. The standard sets distinct noise limit values based on the vehicle type (metro or light rail), the operating environment (underground or above-ground), and the specific location within the train (driver's cab or passenger cabin). Compliance with these specific decibel (dB) limits is a strict regulatory requirement for market access. The standard also defines key terminology such as equivalent sound level and background noise to ensure uniformity in compliance evaluation.
Testing methods
The standard outlines precise measurement procedures using Type 1 integrating sound level meters that comply with GB/T 3785 or GB/T 17181. Testing must be conducted under specific vehicle conditions, such as maintaining a running speed at 75% of the maximum operational speed with a fluctuation of less than ±5%. Measurements are taken using microphones positioned 1.2m above the floor in the center of the driver's cab and passenger cabin. Each measurement must last at least 30 seconds and be repeated a minimum of three times to ensure data validity.
FAQs
What products are regulated under GB 14892-2006?
This standard regulates the noise limits and measurement methods for urban rail transit trains, specifically encompassing both metro and light rail vehicles operating in underground and above-ground environments.
Are there any updates from the previous version of GB 14892-2006?
The 2006 version replaced the previous GB 14892-1994 and GB/T 14893-1994. The major updates include adjusting the standard name, expanding the scope to include light rail trains, and redefining the internal noise limit values.
How does GB 14892-2006 align with international standards?
The standard references international frameworks such as ISO/DIS 3095:2001 and ISO/DIS 3381:2001 for railway acoustics measurements. However, GB 14892-2006 establishes specific mandatory noise limits for the Chinese market that must be strictly followed for domestic compliance.
The summary above provides a high-level overview of GB 14892-2006. To ensure complete compliance for your urban rail transit 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 14892-2006 today to access all detailed parameter tables, specific limit values, and comprehensive testing procedures.
Applicability hints
- Type
- Environmental protection
- CCS
- Q84
- ICS
- 13.140
- Competent department
- Ministry of Ecology and Environment
- Technical committee
- Ministry of Ecology and Environment
Relationships
Replaces:GB 14892-1994, GB/T 14893-1994