Where do you put light switches for spaces that are open to the public like corridors, retail spaces, lobbies, restrooms, arenas, etc? These can be locked devices, placed within view of the lighting, or controls capable of annunciating the space that is being controlled. You can use a nPOD KEY, a keyed digital dimming switch, a nPODM decora digital dimming switch, or best of all, a nPOD GFX a 16 channel single gang touchscreen dimming controller with custom digital labeling. Read on for the specific requirements and solutions by area.
With the enforcement of 2016 T24 code, there have been a lot of inquiries surrounding the changes to local manual control requirements. Per 130.1(a), it is a requirement to provide manual control that is readily accessible and located within the same room or area. The exceptions provided allow for: areas to have lighting control that is within view of the lighting (or illuminated area) or controls that annunciate the area being illuminated; and to have the manual control not accessible to unauthorized personnel.
The areas that allow for controls to be within view or annunciated are malls and atria, auditorium areas, retail merchandise sales areas, wholesale showroom areas, commercial and industrial storage areas, general commercial and industrial work areas, convention centers, and arenas. The areas that allow for controls that are not accessible to unauthorized personnel are public restrooms with two or more stalls, parking areas, stairwells, and corridors. What does having controls not accessible to unauthorized personnel entail? The CEC accepts using a standard switch within a locked enclosure, a keyed switch, a switch located within an inaccessible area with a view of the lighting or illuminated area or using a switch with the controlled area being annunciated.
Per 130.1(a)4, General lighting shall be separately controlled from other lighting systems in the area so additional switches/controls are needed if providing additional types of lighting.
Note, the requirement for dimmable fixtures to be controlled by a dimming switch that can control the fixture through all of the required steps of Table 130.1-A has moved from the Area Control requirements section to section 130.1(b)3.
T24 Compliant Control Typicals:
T24 Compliant Control Systems:
LC&D – Blue Box: https://www.acuitybrands.com/products/controls/blue-box
XPoint Wireless: https://www.acuitybrands.com/products/controls/xpoint-wireless