H - Electricity – 02 – G
Patent
H - Electricity
02
G
H02G 3/22 (2006.01) H01H 47/00 (2006.01) H02B 1/26 (2006.01) H02B 1/40 (2006.01) H02B 1/42 (2006.01) H05B 1/00 (2006.01) H02G 3/08 (2006.01)
Patent
CA 2267883
An electrical control wiring system in which mains voltage (115 volts to 600 volts) power loads in a home or in a commercial building are controlled by use of extra low voltage devices such as switches, variable resistances and microcontrollers. Wires are routed from an electrical panel and looped between special electrical device enclosures that in some respects resemble conventional electrical outlet boxes. The special electrical device enclosures are located in walls so that the front edges appear flush with the finished wall as would be the case with a conventional electrical outlet box in a finished room. The mains voltage wiring is done in the manner normally used in mains voltage wiring. Multi-conductor extra-low voltage cable such as Category 5 cable is routed from a control location and looped to the same special electrical device enclosure locations. The special electrical device enclosure has a plate, which is removable from within the special electrical device enclosure and once this plate is removed, a large opening is present in one wall of the special electrical device enclosure. The extra-low voltage wiring is accessible through the large opening in one wall of the special electrical device enclosure. The extra-low voltage cables may be pulled out through the open front of the special electrical device enclosure and connected to the controlling connections of a controlling device. The controlling device contains components that provide control of the load and a means of electrically separating the mains voltage system from the extra-low voltage system. The controlling device has a plate of size and shape similar to the plate removed from the special electrical device enclosure. An orifice is present in the plate that is part of the controlling device and controlled connections pass through this orifice to connect to components such as a power relay or a triac. When the controlling device is inserted in to the special electrical device enclosure through the front opening of the special electrical device enclosure, physical separation of the mains voltage wire and the extra-low voltage wires is achieved. The controlled connections are present in the special electrical device enclosure for connection to the mains voltage wires and to the mains voltage load. The extra-low voltage cables are accessible by removal of the controlling device or by removal of the plate.
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