GB29415-2013

Fire-resistant cable trunking

耐火电缆槽盒

GB 29415-2013 est une norme nationale chinoise obligatoire en vigueur : Fire-resistant cable trunking. Secteur : Construction. Thème principal : Sécurité des produits. Entrée en vigueur : 1 août 2014.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

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.

Exigences techniques

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.

Méthodes d’essai

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.

Questions fréquentes

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.

Indications d’applicabilité

Type: Produit
CCS: C82
ICS: 13.220.50
Autorité compétente: National Fire and Rescue Administration
Comité technique: National Technical Committee on Fire Protection of Standardization Administration of China