BS EN 60332-2-2:2004 Tests on electric and optical fibre cables under fire conditions - Tests for vertical flame propagation for a single small insulated wire or cable - Procedure for diffusion flame BS EN 60332-2-2:2004 着火条件下电缆和光缆的试验.单股绝缘电线或电缆的垂直火焰蔓延的试验.扩散火焰法。