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以下铁道行业标准自 2 0 0 2年 7月 1日起实施。1.ＴＢ/Ｔ 2 311- 2 0 0 2 铁路电子设备用防雷保安器相应废止 :ＴＢ/Ｔ 2 311- 1992《铁路信号设备雷电防护用组合单元技术条件》2 .ＴＢ/Ｔ 30 2 5 - 2 0 0 2 铁路运输通信数字式语音记录仪技术条件及试验方法3.ＴＢ/Ｔ 30 2
The following railway industry standards from July 1, 2002 onwards. 1.TB / T 2 311- 2 0 0 2 Lightning Protection for Railway Electronic Equipment Obsolete: TB / T 2 311- 1992 “Technical Conditions for Lightning Protection Composite Unit for Railway Signaling Equipment” 2.TB / T 30 2 5 - 2 0 0 2 Railway transport digital voice recorder technical conditions and test methods 3. TB / T 30 2