| 摘要 |
The present invention relates to a safety circuit for a train door and, more specifically, relates to the safety circuit for a train door which is equipped with a door separating switch and a door emergency limit switch in a bypass line by being branched into a bypass line on a main line for each door of a stateroom. According to an embodiment of the present invention, the safety circuit for a train door is equipped with a door closing limit switch and a door locking limit switch on a main line for each of a left and a right door of a train stateroom, a door separating switch operable on an operating chamber in a bypass line being branched from a main line for each of the left and right doors of the stateroom, and an entire door closing relay powered up when a closed circuit is formed by a main line of the left and right doors or by a main line and a bypass line of the left and right doors to be interlocked with a propelling device of a train. |
