Test item 测试名称: | ||||
Tests on electric and optical fibre cables under fire conditions - Part 34:Test for vertical flame spread of vertically-mounted bunched wires or cables - Category B | ||||
电缆和光缆火焰条件下的燃烧试验 第34部分 垂直安装的成束电线电缆火焰垂直蔓延试验 B 类 | ||||
Test info 测试内容: | ||||
Test Clause | Re | |||
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:
>Sample Report 报告样本: