| 摘要 |
A luminaire (10) for a building for security and/or emergency lighting has at least one first lamp (28) for security illumination, at least one second lamp (24) for exit path illumination and/or a sounder (34) for exit path indication, and control means (12) operable in one state to illuminate the first lamp and in a second state to operate the first and second lamps and/or to sound the sounder. Escape lighting apparatus may comprise a plurality of said luminaires and cables for chain interconnection of said luminaires at spaced intervals along at least one escape route. The luninaires may each incorporate a photoelectric or ionization type smoke detector (22) to which the control means is responsive. A set of the luminaires may comprose a microprocesor or microcontroller operated master unit (10a) and a plurality of slave units (10b, 10c, 10d). Also provided is a luminaire for a building for security and/or emergency lighting having compressible fixing means for ceiling mounting thereof, a switch (36) associated with the fixing means and a control unit arranged to receive a signal when the state of the switch is altered, the arrangement being such that upward force applied to the luminaire alters the state of the switch and provides said signal. The luminaire is easy to test or to hush by a push from ground level e.g. applied to the luminaire using a pole. |
