DIN EN 50289-4-16-2017 通信电缆.试验方法规范.第4-16部分:环境试验方法.火灾条件下电路完整性.德文版本EN 50289-4-16-2016
Communication cables - Specifications for test methods - Part 4-16: Environmental test methods - Circuit integrity under fire conditions; German version EN 50289-4-16:2016