GB/T 18380.32返回 Back
| Test item 测试名称： | |||||
| Tests on electric and optical fibre cables under fire conditions - Part 32:Test for vertical flame spread of vertically-mounted bunched wires or cables - Category A F/R | |||||
| 电缆和光缆火焰条件下的燃烧试验 第32部分 垂直安装的成束电线电缆火焰垂直蔓延试验 A F/R 类 | |||||
| Test info 测试内容： | |||||
| Test Clause | Requirement | ||||
| conditioning | conditioned at a temperature of (20 ± 10) °C for at least 16 h before commencing the test. | ||||
| Sample Required: | |||||
| 每根长度不少于3.5m，所需根数按照下式计算。总样品数量=n×3.5(m) 。 | |||||
| n=1000V/(S－Sm); n为试件根数; S为电缆截面积，mm2; Sm为导体截面积，mm2; A类V取7.0; B类V取3.5; C类V取1.5; D类V取0.5 (请按上式计算) | |||||
| Turnaround time: normal (9 working days) | |||||
| 所需时间: 标准(9 个工作天) | |||||
Sample for reference 参考图片:
