DIN EN 300019-2-4:2016 设备工程(EE).电信设备的环境条件和环境试验.第2-4部分:环境试验规范.非抗大气影响场所用固定设备(英文版本EN 300019-2-4 V2.4.1 (2015-12)的核准本作为德国标准)
Environmental Engineering (EE) - Environmental conditions and environmental tests for telecommunications equipment - Part 2-4: Specification of environmental tests; Stationary use at non-weatherprotected locations (Endorsement of the English version EN 30