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may be used to control lighting in such areas. They avoid the need to press a push-button but otherwise operate as for electronic timers. As PIR sensors are not perfectly reliable a timer is needed to avoid the lights flashing off and on as the occupier moves out of detector range. The timer interval
102:
pushbuttons. A large push-button, distinctly larger than a normal electrical switch, is pressed manually. An internal mechanism provides the delay. The internal piston is depressed by the button and holds the electrical contacts closed. This piston is spring-loaded to return upwards but is prevented
157:
Such sensors are also used for restrooms. Owing to the variability of occupancy time in a restroom, a simple fixed timer was unworkable. This ability to cope with variably occupancy times is also useful when stairwells, lift lobbies and corridors must grant
130:
An electronic timer allow simple push-buttons to be used. One timer is installed controlling the lights and any number of push-buttons, without pneumatic timers and connected in
40:, corridor or lobby. A single action turns on the lights and they remain on for long enough to ascend or descend the stairs. The lights then turn themselves off automatically.
56:. The lights may be turned on or off from either the top, bottom or intermediate floors of the staircase. They remain on until turned off manually.
194:
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71:
this could be an appreciable cost. For this reason shared dwellings favour timers for staircases instead. The lights are turned on by a
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is short though compared to a push-button timer; it times the interval between sightings of the occupier, not the time of occupancy.
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To provide longer lighting times when required the button may be pressed repeatedly. For this reason any timer should be a
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60:
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switch on any floor. They remain on automatically for an adequate time to climb the stairs, then turn themselves off.
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67:. Individual tenants turn lights on, but have little reason to turn them off. Particularly so in the days of
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433:
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280:
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16:
368:
134:, are used to trigger it. With many push-buttons, the cost savings for equipment may be substantial.
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68:
53:
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as they no longer discriminate in favour of an assumed transit time for an able-bodied person.
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63:, the drawback is that the cost of shared lighting is usually paid by the
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90:, that can turn the lights on indefinitely for tasks such as cleaning.
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141:
118:
15:
195:"Staircase & Corridors Lighting optimization through timers"
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button press. There may also be a switch, sometimes a
82:, i.e. the off delay lasts from the time of the
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8:
20:Typical UK pneumatic delay pushbutton switch
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187:
288:
274:
266:
52:domestic dwelling it is usual to provide
231:"Timeswitch Pneumatic Time Delay Switch"
183:
459:Motion-triggered contact insufficiency
103:from returning quickly by a pneumatic
7:
146:Combined PIR sensor and lightswitch
14:
126:mounted electronic lighting timer
602:
98:The first staircase timers were
1:
454:Miniature snap-action switch
54:multiple switching locations
61:multiple occupancy dwelling
645:
600:
304:
213:"Vacuum Time Lag Switch"
107:. This dashpot provides
80:retriggerable monostable
584:Vandal-resistant switch
434:Magnetic proximity fuze
529:Silicone rubber keypad
147:
127:
21:
589:Wireless light switch
145:
122:
19:
369:Electric switchboard
138:Occupancy detectors
109:the timing function
339:Contact protection
329:Centrifugal switch
252:"Stair case timer"
199:Schneider Electric
148:
128:
69:incandescent lamps
22:
611:
610:
594:Zero speed switch
115:Electronic timers
28:is an electrical
636:
606:
439:Magnetic starter
429:Lightning switch
379:Half-moon switch
349:Crossover switch
319:Battery isolator
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94:Pneumatic timers
50:single occupancy
32:used to control
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574:Transfer switch
554:Strowger switch
549:Stepping switch
544:Staircase timer
499:Railroad switch
444:Magnetic switch
419:Latching switch
394:Inertial switch
389:Infinite switch
344:Crossbar switch
309:Analogue switch
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172:Twilight switch
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160:disabled access
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26:staircase timer
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479:Placebo button
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464:Optical switch
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449:Mercury switch
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334:Company switch
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256:TLC Electrical
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238:TLC Electrical
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217:TLC Electrical
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579:Vacuum switch
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509:Rotary switch
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314:Banyan switch
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569:Touch switch
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524:Sense switch
474:Piezo switch
424:Light switch
414:Limit switch
409:Knife switch
374:Float switch
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25:
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564:Time switch
514:Sail switch
504:Reed switch
494:Push-button
489:Push switch
484:Pull switch
469:Photoswitch
399:Kill switch
364:Dry contact
151:PIR sensors
73:push-button
618:Categories
559:Thermostat
534:Softswitch
519:Sea switch
404:Key switch
384:Humidistat
359:DIP switch
324:Cam switch
178:References
88:key switch
539:Spark gap
100:pneumatic
44:Operation
38:staircase
629:Switches
624:Lighting
354:Cryotron
166:See also
132:parallel
124:DIN rail
65:landlord
34:lighting
105:dashpot
297:Switch
30:switch
299:types
234:(PDF)
59:In a
48:In a
36:on a
84:last
620::
254:.
236:.
215:.
197:.
186:^
111:.
24:A
289:e
282:t
275:v
258:.
240:.
219:.
201:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
