GB/T 18380.32-2022

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

电缆和光缆在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