| Date |
Text |
| 2014-04-01 13:48:25 | 505.2.3 DAYLIGHT ZONE CONTROL. |
| | DAYLIGHT ZONES, AS DEFINED BY THIS CODE, SHALL BE |
| | PROVIDED WITH INDIVIDUAL CONTROLS THAT CONTROL THE |
| | LIGHTS INDEPENDENT OF GENERAL AREA LIGHTING. CONTIGUOUS |
| | DAYLIGHT ZONES ADJACENT TO VERTICAL FENESTRATION ARE |
| | ALLOWED TO BE CONTROLLED BY A SINGLE CONTROLLING DEVICE |
| | PROVIDED THAT THEY DO NOT INCLUDE ZONES FACING MORE |
| | THAN TWO ADJACENT CARDINAL ORIENTATIONS (I.E., NORTH, |
| | EAST, SOUTH, WEST). DAYLIGHT ZONES UNDER SKYLIGHTS MORE |
| | THAN 15 FEET (4572 MM) FROM THE PERIMETER SHALL BE |
| | CONTROLLED SEPARATELY FROM DAYLIGHT ZONES ADJACENT TO |
| | VERTICAL FENESTRATION. |
| | |
| | EXCEPTION: DAYLIGHT SPACES ENCLOSED BY WALLS OR CEILING |
| | HEIGHT PARTITIONS AND CONTAINING TWO OR FEWER LIGHT |
| | FIXTURES ARE NOT REQUIRED TO HAVE A SEPARATE SWITCH FOR |
| | GENERAL AREA LIGHTING. |
| | |
| | 505.2.4 EXTERIOR LIGHTING CONTROLS. |
| | LIGHTING FOR ALL EXTERIOR APPLICATIONS NOT EXEMPTED IN |
| | SECTION 505.1 SHALL HAVE AUTOMATIC CONTROLS CAPABLE OF |
| | TURNING OFF EXTERIOR LIGHTING WHEN SUFFICIENT DAYLIGHT |
| | IS AVAILABLE OR WHEN THE LIGHTING IS NOT REQUIRED |
| | DURING NIGHTTIME HOURS. LIGHTING NOT DESIGNATED FOR |
| | DUSK-TO-DAWN OPERATION SHALL BE CONTROLLED BY EITHER A |
| | COMBINATION OF A PHOTOSENSOR AND A TIME SWITCH, OR AN |
| | ASTRONOMICAL TIME SWITCH. |
| | |
| | LIGHTING DESIGNATED FOR DUSK-TO-DAWN OPERATION SHALL BE |
| | CONTROLLED BY AN ASTRONOMICAL TIME SWITCH OR |
| | PHOTOSENSOR. ALL TIME SWITCHES SHALL BE CAPABLE OF |
| | RETAINING PROGRAMMING AND THE TIME SETTING DURING LOSS |
| | OF POWER FOR A PERIOD OF AT LEAST 10 HOURS. |
| | |
| | EXCEPTION: LIGHTING FOR COVERED VEHICLE ENTRANCES OR |
| | EXITS FROM BUILDINGS OR PARKING STRUCTURES WHERE |
| | REQUIRED FOR SAFETY, SECURITY, OR EYE ADAPTATION. |
