GB 7588-2003 第14.1.2条
| **** | **Electrical fault protection**: In the event of a **short circuit**, **overload** (≥1.2 times rated current sustained for 2 hours), or **undervoltage** (≤85% of rated voltage), the elevator shall stop automatically and be unable to start. Hotel elevators require additional **phase-loss protection** (immediate stop when one phase of the three-phase power supply is lost). |