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GB7956.17-2019
Fire fighting vehicles—Part 17：Smoke exhauster fire fighting vehicle
消防车 第17部分：排烟消防车
GB 7956.17-2019 — действующий обязательный национальный стандарт Китая: Fire fighting vehicles—Part 17：Smoke exhauster fire fighting vehicle. Отрасль: Авто. Тема: Безопасность продукции. Дата вступления в силу: 1 июл. 2020 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 specifically to smoke exhauster fire fighting vehicles, which are primarily equipped with fixed smoke exhaust and ventilation devices used for smoke extraction and ventilation at disaster sites. This standard is mandatory for all manufacturers producing these specific fire fighting vehicles for the Chinese market. It should be noted that this part does not cover other types of fire fighting vehicles regulated under the broader GB 7956 series.
Технические требования
The standard outlines comprehensive technical specifications for the vehicle and its components. For the complete vehicle, it mandates secure fixation of the exhaust device, strict noise limits in the cab, and clear operational and warning instructions. Manufacturers must ensure the vehicle remains stable without tipping or hazardous shaking during maximum RPM operations. For the smoke exhaust device, the standard specifies minimum requirements for flow rate, full pressure, or thrust depending on the fan type (axial, centrifugal, or jet). It requires the impeller to pass an overspeed test and mandates that the device can operate continuously for 6 hours at rated speed. Negative-pressure devices must also withstand a 280°C medium for 30 minutes. Safety guards and indicator lights are strictly required. The smoke exhaust ducts must match the device interfaces, ensure reliable connections, and possess sufficient strength. Negative-pressure ducts must use high-temperature resistant materials and pass abrasion resistance tests. The lifting, pitching, and slewing mechanisms must meet specific speed and angle parameters, operate smoothly without interference, and feature an alarm if not returned to the stowed position. Additionally, the standard regulates the hydraulic system (requiring relief valves and filters), the control system (specifying instrument accuracy, protection functions, and minimum insulation resistance), and the mandatory equipment list carried on the vehicle.
Методы испытаний
Testing procedures include reliability driving tests and in-cab noise measurement for the complete vehicle. The performance of the smoke exhaust device is evaluated by measuring flow rate and full pressure according to GB/T 1236, and thrust according to GB/T 19843. Overspeed tests are conducted per JB/T 6445. Ducts are subjected to abrasion resistance testing following GB/T 19089-2012. The lifting, pitching, and slewing mechanisms undergo 50 continuous working cycles to verify reliability and hydraulic system integrity. The control system is tested for insulation resistance, withstand voltage (1500V), and protection grade (IP22) in accordance with GB/T 4208-2017.
Частые вопросы
What products are regulated under GB 7956.17-2019?
This standard specifically regulates smoke exhauster fire fighting vehicles, which are fire trucks equipped with fixed smoke exhaust and ventilation devices.
Is GB 7956.17-2019 a mandatory standard?
Yes, Chapters 4 and 6 of this standard are mandatory, while the remaining chapters are recommended. Compliance is essential for market access in China.
What are the high-temperature requirements for the smoke exhaust device?
Negative-pressure smoke exhaust devices must be capable of continuous operation for 30 minutes when conveying a medium at a temperature of 280°C, in addition to operating normally for 6 hours at rated speed under standard conditions.
The summary above provides a high-level overview of GB 7956.17-2019. To ensure complete compliance for your smoke exhauster fire fighting vehicles entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 7956.17-2019 today to access all detailed parameters, tables, and testing procedures.
Подсказки по применимости
- Тип
- Продукция
- CCS
- 84
- ICS
- 13.220.10
- Компетентное ведомство
- National Fire and Rescue Administration
- Технический комитет
- National Technical Committee on Fire Protection of Standardization Administration of China