| 摘要 |
<p>The electric incandescent lamp has a filament (12) connected to current supply conductors (3a, 3b; 4a, 4b) and kept taut by a frame of longitudinal conductors (8, 9) and transverse insulators (10, 11). The conductors (8, 9) are each connected to a point on the current supply conductors (3a, 3b; 4a, 4b) at least one of them being connected thereto through a fuse (18, 19). When switching on and operating the lamp, the fuses (18, 19) are not included in the current circuit. When a discharge arc is produced between fragments of the filament (12), this arc flashes over to the conductors (8, 9) and the fuses (18, 19) are included in the current circuit in order to interrupt the current.</p> |
