2018TB/T 3177-2018 Main safety conditions to be followed when using electronic components in railway signaling technology
1970TB/T 3177-2007 The main safety conditions to be observed when using electronic components in railway signaling technology
TB/T 3177-2007 The main safety conditions to be observed when using electronic components in railway signaling technology has been changed from GB/T 10495-1989 The more important safety conditions to be observed in the use of electronic components in railway signalling techniques.