GB 7588-2003 第13.6.2条
| **** | **Electrical safety circuit**: The safety circuit (including governor, safety gear, door lock, emergency stop switch, etc.) shall adopt a **dual-channel** or **redundant design**, with an operating voltage ≤ **AC 250V** or **DC 60V**. Hotel elevator safety circuits shall be equipped with a **fault self-diagnosis** function (e.g., when the door lock circuit is broken, the system automatically records and alarms). |