This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of locomotive relays. This standard applies to relays for various protection, control and measurement purposes in railway electric locomotives, diesel locomotives, and electric multiplex circuits, auxiliary circuits, and control circuits. This standard does not apply to relays used in communication signaling systems on railway locomotives. When other standard relay products are used as locomotive relays (hereinafter referred to as relays), they should be verified according to this standard based on the parameters required for actual use.
TB/T 2762-1996 history
2017TB/T 2762-2017 Rolling stock electrical equipment relays
2010TB/T 2762-2010 General technical specification of rolling stock relays
1997TB/T 2762-1996 Basic Technical Conditions of Locomotive Relays