GB14887-2011

Road traffic signal lamps

道路交通信号灯

GB 14887-2011 es una norma nacional china obligatoria vigente: Road traffic signal lamps. Sector: Electrónica. Enfoque: Seguridad de productos. Entrada en vigor: 1 jul 2012.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to road traffic signal lamps used on roads in China, including motor vehicle, non-motor vehicle, pedestrian crossing, and lane signal lamps. It covers various light sources such as incandescent, low-voltage halogen, and LED. It is mandatory for all manufacturers and suppliers of traffic signal equipment entering the Chinese market. The standard does not apply to non-road or private traffic signaling devices.

Requisitos técnicos

The standard specifies comprehensive optical performance requirements for both patterned and non-patterned signal lamps. This includes minimum and maximum luminous intensity on the geometric axis, as well as specific light distribution patterns to ensure visibility from various angles. Manufacturers must ensure that optical performance does not degrade significantly after one year of use. It defines strict chromaticity performance limits for red, yellow, and green light signals, ensuring color recognition under various conditions, including the presence of phantom light caused by environmental reflections. Additionally, the standard sets requirements for power consumption and power factor, with specific limits depending on the light source type and lamp size. The standard also mandates several operational and safety features. These include start/stop response times of less than 100ms, night dimming functionality, and LED failure detection mechanisms that automatically shut down the unit if over 50% of LEDs fail. Signal lamps must also incorporate robust electrical safety features, including specific insulation resistance and dielectric strength limits. Environmental durability is a key focus, requiring lamps to withstand extreme temperatures (-40°C to 80°C), humidity, salt spray, and vibrations. The standard also includes specific requirements for solar-powered signal lamps, covering battery matching, overcharge/discharge protection, and continuous operation performance.

Métodos de ensayo

The standard outlines rigorous testing procedures, including photometric testing in darkrooms to measure luminous intensity and brightness distribution. It also specifies phantom light testing using simulated CIE A light sources to evaluate reflection interference. Environmental tests such as high/low temperature, damp heat, salt spray, and vibration are conducted according to GB/T 2423 series standards. Additionally, specialized tests for LED failure detection, solar panel matching, and dielectric strength are detailed.

Preguntas frecuentes

What products are regulated under GB 14887-2011?

GB 14887-2011 regulates road traffic signal lamps used on public roads, including motor vehicle, non-motor vehicle, pedestrian, and lane signal lamps, regardless of whether they use incandescent, halogen, or LED light sources.

Are there any updates from the previous version of GB 14887?

Yes, GB 14887-2011 replaces GB 14887-2003. Key updates include increased brightness and luminous intensity requirements for patterned signal lamps, the addition of LED failure detection functionality, new requirements for solar-powered signal lamps, and extended high/low temperature testing durations.

Does GB 14887-2011 apply to solar-powered traffic signal lamps?

Yes, the standard includes a dedicated section for solar-powered signal lamps, covering requirements for battery matching, overcharge/discharge protection, polarity reverse connection protection, and continuous operation performance.

The summary above provides a high-level overview of GB 14887-2011. 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 14887-2011 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Producto
CCS: R80
ICS: 93.080.30
Organismo competente: Ministry of Public Security
Comité técnico: Ministry of Public Security

Relaciones

Sustituye a:GB 14887-2003