IEC 60332-3-24:2000/AMD1:2008
Amendment 1 - Tests on electric and optical fibre cables under fire conditions - Part 3-24: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C
发布时间:2008-12-12 实施时间:


IEC 60332-3-24:2000/AMD1:2008标准适用于垂直安装的成束电线或电缆,用于评估其在火灾条件下的垂直火焰蔓延性能。该标准的测试方法是将电线或电缆垂直安装在垂直燃烧的燃料上,然后测量火焰蔓延的高度和时间。测试的结果将根据火焰蔓延的高度和时间进行分类评估。

该标准的测试方法包括以下步骤:

1. 准备测试样品:将电线或电缆垂直安装在测试装置上,并按照标准要求进行束缚。

2. 准备测试环境:将测试装置放置在垂直燃烧的燃料上,并点燃燃料。

3. 进行测试:记录火焰蔓延的高度和时间,并根据标准要求进行分类评估。

根据测试结果,电线或电缆将被分为以下几类:

- 类A:火焰蔓延高度小于2.5m,持续时间小于5s。
- 类B:火焰蔓延高度小于2.5m,持续时间大于5s。
- 类C:火焰蔓延高度大于2.5m,但不超过3.0m。
- 类D:火焰蔓延高度大于3.0m。

该标准的测试结果将用于评估电线或电缆在火灾条件下的垂直火焰蔓延性能。这对于确保电线或电缆在火灾条件下的安全性至关重要。

相关标准
- IEC 60332-1-2:2018 Tests on electric and optical fibre cables under fire conditions - Part 1-2: Test for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed flame
- IEC 60332-1-3:2018 Tests on electric and optical fibre cables under fire conditions - Part 1-3: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category A
- IEC 60332-1-4:2018 Tests on electric and optical fibre cables under fire conditions - Part 1-4: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category B
- IEC 60332-2-2:2004 Tests on electric and optical fibre cables under fire conditions - Part 2-2: Test for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed flame - Apparatus
- IEC 60332-2-3:2000 Tests on electric and optical fibre cables under fire conditions - Part 2-3: Test for vertical flame spread of vertically-mounted bunched wires or cables - Category C