铁路信号直流无级继电器通用技术条件
General technical requirements for railway signal DCneutral relays
2007-08-13
DIN EN 116200
Sectional specification: electromechanical all-or-nothing relays (including relays for severe environmental conditions); german version EN 116200:1991
分规范:机电式全有或无继电器(包括恶劣环境条件下的继电器);德文版EN 116200:1991