IEC 60332-3-25:2000+AMD1:2008 CSV标准适用于所有电线和电缆,包括电力电缆、通信电缆、控制电缆、光纤电缆等。该标准要求将电线或电缆垂直布置,并成束排列。测试时,将一定长度的电线或电缆置于垂直的燃烧器中,点燃燃烧器,观察火焰蔓延的情况。测试结束后,根据火焰蔓延的情况,将电线或电缆分为不同的类别。
根据IEC 60332-3-25:2000+AMD1:2008 CSV标准,电线或电缆的火焰蔓延性能分为以下几个类别:
A类:电线或电缆不会在测试期间发生火焰蔓延,或者火焰蔓延的距离小于25mm。
B类:电线或电缆在测试期间发生火焰蔓延,但火焰蔓延的距离小于2.5m。
C类:电线或电缆在测试期间发生火焰蔓延,但火焰蔓延的距离小于4.0m。
D类:电线或电缆在测试期间发生火焰蔓延,且火焰蔓延的距离大于4.0m。
根据IEC 60332-3-25:2000+AMD1:2008 CSV标准,D类别的电线或电缆的火焰蔓延距离较大,容易引起火灾扩散,因此需要采取相应的防火措施,以保障人员和财产的安全。
相关标准
IEC 60332-1-2:2004 CSV - 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 60332-1-3:2004 CSV - 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 C
IEC 60332-1-4:2004 CSV - Tests on electric and optical fibre cables under fire conditions - Part 1-4: Test for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion flame
IEC 60332-2-1:1996+AMD1:2008 CSV - Tests on electric and optical fibre cables under fire conditions - Part 2-1: Test for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW flame
IEC 60332-2-2:2004 CSV - Tests on electric and optical fibre cables under fire conditions - Part 2-2: Test for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion flame