Описание на русском · Доступен перевод
GB25280-2016
Road traffic signal controller
道路交通信号控制机
GB 25280-2016 — действующий обязательный национальный стандарт Китая: Road traffic signal controller. Отрасль: Электроника. Тема: Безопасность продукции. Дата вступления в силу: 13 дек. 2016 г..
Применимость зависит от продукции, схемы сертификации, уведомлений компетентных органов и переходных правил. Закажите перевод или проверьте источник, прежде чем использовать эту запись в решениях по соответствию.
Обзор требований
Этот обзор пока доступен только на английском языке.
Область применения
This standard applies to road traffic signal controllers used on public roads in China, including fixed and mobile installations in both indoor and outdoor environments. It covers controllers classified into Type A, Type B, and Type C based on control functionality levels. Manufacturers of any road traffic signal controller entering the Chinese market must comply with this standard. Signal controllers used in other non-road venues may refer to this standard as a guideline. The standard replaces the previous GB 25280-2010 and GB/T 30502-2014 editions.
Технические требования
The standard specifies comprehensive technical requirements across multiple domains. Physical structure requirements cover cabinet design, material corrosion resistance, door sealing, wiring routing, and grounding provisions, with specific dimensions for bottom mounting holes on ground-installed units. Power and electrical requirements define main power ratings (AC 220V±44V, 50Hz±2Hz), lightning protection devices, lamp control isolation via optocouplers or solid-state relays, and minimum current capacities for power conductors and grounding wires. Basic functional requirements mandate startup sequences (yellow flash ≥10s, then red ≥5s before normal operation), signal conversion sequences per GB 14886, manual control capabilities, and control mode transition rules ensuring smooth signal state transitions. Controllers must implement independent yellow flash fallback circuits that activate when normal operation fails. Fault monitoring requirements distinguish between severe faults (green conflict, all-red failure, simultaneous red/green) requiring immediate yellow flash or shutdown, and general faults allowing degraded operation. Control function requirements are tiered by controller class: Type A supports basic multi-period timing and pedestrian response; Type B adds vehicle-actuated and cableless coordinated control; Type C adds networked control, single-point optimization, and priority control for buses and emergency vehicles. Information security requirements are newly introduced, requiring mutual authentication between controllers and host computers, control instruction password verification, and broadcast storm protection. All networked controllers must implement bidirectional identity verification before accepting control commands. Environmental and safety requirements cover electrical safety (insulation resistance ≥10MΩ, dielectric withstand 1500V/50Hz), electromagnetic immunity per GB/T 17626 series standards, climate adaptability (high/low temperature, humidity, rain, salt spray, dust), mechanical adaptability (vibration, shock), and continuous operation stability for 240 hours without failure.
Методы испытаний
Testing methods include: Visual and structural inspection for cabinet appearance, markings, and wiring; Functional testing for yellow flash frequency, startup sequences, signal transitions, and control mode switching; Control function testing for manual, multi-period, vehicle-actuated, cableless coordinated, and networked control modes; Fault simulation testing by manually injecting severe and general faults to verify fallback behavior; Information security testing for identity authentication, command verification, and broadcast storm resilience; Electrical safety testing including power voltage adaptability (176V–264V, 48Hz–52Hz), insulation resistance measurement, and dielectric withstand testing; EMC testing for electrostatic discharge (4kV), electrical fast transient bursts (2kV), surge (1kV line-line, 2kV line-ground), and voltage interruption immunity; Climate environment testing including high temperature (70°C), low temperature (−40°C for Grade A, −20°C for Grade B), constant humidity, rain spray, salt spray, and dust exposure; Mechanical testing including vibration (33Hz, 1g) and shock (10g, 16ms); Steel ball impact testing per GB 4943.1; and 240-hour continuous stability testing under timed operation with resistive load.
Частые вопросы
What products are regulated under GB 25280-2016?
GB 25280-2016 regulates road traffic signal controllers used on public roads in China, classified into Type A (basic timing), Type B (actuated and coordinated), and Type C (networked with priority control). It applies to both indoor and outdoor, fixed and mobile installations.
Which clauses of GB 25280-2016 are mandatory?
The mandatory clauses include sections 5.3.4 (lightning protection), 5.3.10 (grounding), 5.4.2 (startup sequence), 5.4.3.1 (signal conversion), 5.4.4 (manual control), 5.4.5 (control mode transition), 5.5.2 (yellow flash fallback), 5.5.3 (fault handling), and 5.8 (electrical safety). All other clauses are recommended.
What are the key updates in GB 25280-2016 compared to the 2010 version?
Key updates include the addition of information security requirements (Section 5.7), revised controller classification into A/B/C types, new model and identification code numbering rules, updated communication interface and protocol specifications (Appendix A), enhanced EMC immunity requirements, and modified salt spray and continuous stability test methods. The standard also merges the former GB/T 30502-2014 for lane signal controllers into this unified standard.
The summary above provides a high-level overview of GB 25280-2016. To ensure complete compliance for your road traffic signal controllers entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 25280-2016 today to access all detailed parameters, testing procedures, mandatory clause requirements, and the complete communication protocol message formats defined in Appendix A.
Подсказки по применимости
- Тип
- Продукция
- CCS
- R87
- ICS
- 93.080.30
- Компетентное ведомство
- Ministry of Public Security
- Технический комитет
- Ministry of Public Security
Связи
Заменяет:GB 25280-2010, GB/T 30502-2014