The most common lamp applications are local indication of breaker status, trip coil integrity, and LOR trip signal detection, each traditionally monitored with separately mounted incandescent bulbs.

• 最常见的应用信号是当地断路开关的状况，线圈完整性，以及LOR错误信号检测，每一传统监测都通过各自的白炽灯泡完成。