Abstract:
A frame piece of a frame for a luminaire is disclosed. The frame piece can include an inner wall, a first frame coupling feature disposed at a first end of the frame piece, and a second frame coupling feature disposed at a second end of the frame piece. The first frame coupling feature can be configured to mechanically couple to the second frame coupling feature of a first adjacent frame piece. The second frame coupling feature can be configured to mechanically couple to the first frame coupling feature of a second adjacent frame piece. The inner wall can have a first shape and a first size that is substantially similar to a second shape and a second size of a portion of a housing of the luminaire.
Abstract:
A mounting bracket for a junction box includes a face plate, a first leg extending from the face plate, a second leg extending from the face plate, and a leg connector extending between and interconnecting the first and second legs.
Abstract:
An imaging sensor determines an influence of artificial light from one or more artificial light sources and an influence of natural light in an area associated with a lighting system. On the basis of the influence of the natural light and the influence of the artificial light, the imaging sensor determines the location of the one or more artificial light sources with respect to the location of the imaging sensor. Further, the imaging sensor allocates a portion of the area as an area of influence of the imaging sensor based on a threshold change in luminescence of the area associated with switching on or switching off of the one or more artificial light sources. Responsively, the imaging sensor associates at least one artificial light source of the one or more light sources and occupancy sensors corresponding to the at least one artificial light source with the allocated area of influence.
Abstract:
An electrical control system includes a power supply circuit comprising a load. Further, the electrical control system includes a master node that is electrically coupled to the load via the power supply circuit. The master node includes a first power line communication interface and a first wireless communication interface. Furthermore, the electrical control system includes at least one slave node that is electrically coupled to the master node via the power supply circuit. The at least one slave node includes a second power line communication interface that is communicable with the first power line communication interface to send a first control signal to the master node through power line communication for controlling the load. The electrical control system further includes a controller that is wirelessly coupled to the master node to send a second control signal wirelessly to the master node for controlling the load.
Abstract:
An electrical box that allows for separate wire connection areas for low voltage and line voltage wiring within a single box. The electrical box includes a voltage divider positioned within the box that divides the box into two portions, providing a low voltage wiring connection area that is separate from the line voltage wiring connection area. The electrical box also includes multiple knockouts, each covering an opening that provides a passageway from the interior of the box to the exterior of the box. At least one knockout and associated opening are positioned to provide access to the low voltage wiring connection area and another knockout and associate opening is positioned along to the box to provide access to the line voltage wiring connection area. The box provides an electrical junction for a luminaire, such as a downlight, or other electrical device.
Abstract:
An energy storage device heating system includes an energy storage device, a power supply structured to generate a source of harvested energy by harvesting energy from a power source, a heater disposed proximate to the energy storage device and structured to use the harvested energy to generate heat, a charging unit structured to use the harvested energy to charge the energy storage device, a selection circuit structured to selectively electrically connect the source of harvested energy to the charging unit or the heater, and a control unit including a selection control module structured to control the selection circuit to switch between electrically connecting the source of harvested energy to the charging unit and electrically connecting the source of harvested energy to the heater.
Abstract:
A device for gripping a cable includes a device body, one or more gripping elements, and a gripping element housing configured to support the one or more gripping elements. The gripping element housing is rotatably coupled to the device body such that rotation of the gripping element housing relative to the device body about a longitudinal axis causes the one or more gripping elements to move radially relative to the longitudinal axis. The gripping elements may be configured such that they do not rotate relative to the gripping element housing. The gripping elements may also be configured such that they move only in a radial direction relative to the longitudinal axis, or alternatively such that they move both radially and longitudinally relative to the longitudinal axis.
Abstract:
An apparatus is provided for securing to and collecting power from an electrical conductor, including a current transformer comprising a core and an electrical winding that receives an induced current from magnetic flux generated according to alternating current present on the electrical conductor, and a clamping mechanism that attaches the apparatus to the electrical conductor. According to various aspects, apparatus may include a housing that encloses circuitry for monitoring conditions of the electrical conductor, where the circuitry includes one or more sensors, and wireless communications circuitry.
Abstract:
An enclosure can include a top enclosure portion having a top flange and a first top engagement feature. The enclosure can also include a bottom enclosure portion mechanically coupled to the top enclosure portion, where the bottom enclosure portion has a bottom flange that mechanically couples to the top flange and a first bottom engagement feature that mechanically couples to the first top engagement feature. The enclosure can further include a first fastening device mechanically and movably coupled to the first top engagement feature and the first bottom engagement feature. The first fastening device, in an engaged position, can maintain a flame path between the top flange and the bottom flange. The first fastening device, in a disengaged position, can fail to maintain a flame path between the top flange and the bottom flange.