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GB29415-2013
Fire-resistant cable trunking
耐火电缆槽盒
GB 29415-2013 — действующий обязательный национальный стандарт Китая: Fire-resistant cable trunking. Отрасль: Строительство. Тема: Безопасность продукции. Дата вступления в силу: 1 авг. 2014 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 fire-resistant cable trunks used in indoor environments of industrial and civil buildings for laying cables below 1kV. It covers product classification, technical requirements, and testing methods. Outdoor applications may refer to this standard for guidance. It is essential for manufacturers of cable management systems targeting the Chinese market, particularly those referencing CECS 31:2006 for design specifications.
Технические требования
The standard specifies comprehensive requirements for fire-resistant cable trunks, categorized by structural types (composite, ordinary, breathable, non-breathable) and fire resistance grades (F1 to F4). Key technical parameters include: Material and Appearance: Components must be free of cracks and burrs. Non-metallic and core materials must meet Class A combustion performance per GB 8624. Metal parts require specific anti-corrosion treatments. Load-bearing Capacity: Manufacturers must declare the rated uniform load. The maximum deflection-to-span ratio must not exceed 1/200 under rated load. Protection Degree: The enclosure protection level must not be lower than IP40, as defined in GB 4208-2008. Fire Resistance: Trunks are classified into four levels based on their working duration under fire test, ranging from 30 to 90 minutes.
Методы испытаний
Testing procedures involve visual inspection and micrometer measurement for material thickness. Combustion performance is evaluated according to GB 8624. Load-bearing capacity is tested per CECS 31:2006. The fire resistance test is conducted in a furnace conforming to GB/T 9978.1-2008, where the trunk is subjected to a four-sided fire exposure. The test concludes when a 3A fuse connected to the internal cables melts, determining the fire-resistant working duration.
Частые вопросы
What products are regulated under GB 29415-2013?
It regulates fire-resistant cable trunks used indoors for cables below 1kV in industrial and civil buildings.
What are the fire resistance ratings defined in this standard?
The standard defines four grades (F1 to F4) based on the working duration under fire test, with F1 requiring at least 90 minutes and F4 requiring at least 30 minutes.
Is GB 29415-2013 mandatory?
Yes, clauses 5.3, 5.4, 5.5, and Chapter 7 are mandatory, covering load-bearing capacity, protection degree, fire resistance, and inspection rules. Other clauses are recommended.
The summary above provides a high-level overview of GB 29415-2013. To ensure complete compliance for your cable trunk 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 29415-2013 today to access all detailed parameters, load-bearing tables, and rigorous testing procedures.
Подсказки по применимости
- Тип
- Продукция
- CCS
- C82
- ICS
- 13.220.50
- Компетентное ведомство
- National Fire and Rescue Administration
- Технический комитет
- National Technical Committee on Fire Protection of Standardization Administration of China