GB/T 18380.33-2008
AbolishedTests on electric and optical fibre cables under fire conditions - Part 33:Test for vertical flame spread of vertically-mounted bunched wires or cables - Category A
电缆和光缆在火焰条件下的燃烧试验 第33部分：垂直安装的成束电线电缆火焰垂直蔓延试验 A类
Application Summary AI generated
This standard specifies the test method for assessing the flame spread of vertically-mounted bunched electric or optical fibre cables under fire conditions, specifically for Category A (the most stringent classification). It is applied in the electrical and telecommunications industries to evaluate the fire performance of cables installed in vertical cable trays or shafts, ensuring they meet safety requirements for limiting flame propagation in buildings and infrastructure.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.