This feature is particularly useful for wiring gang electrical boxes housing multiple electrical devices. The pre-wired ground also functions as a lanyard between the electrical device and the electrical box, allowing the plaster ring to be pivoted to, and supported in, an open position to provide hands-free connection of power wires to the electrical device. In an embodiment, the electrical device is a wiring module configured to accept any of various functional modules. A combination electrical box, plaster ring, one or more electrical devices installed in the plaster ring and one or more pre-wired grounds between the electrical box and the electrical device or devices provides for a pre-tested ground path. Further, it is impractical to test each wired installation for conformance to construction standards.Ī pre-wired power distribution system, in contrast, advantageously combines installation flexibility, convenience and verifiability. SUMMARY OF THE INVENTIONĬonventional electrical distribution systems consist of either prefabricated components customized for particular electrical distribution points within a building or individual components that must be planned for, ordered, allocated to building locations and then attached together and wired during installation at each electrical distribution point. During a trim phase, electrical devices are mounted to the plaster rings. Then power cables are fed through openings in the rear or sides of the boxes and folded back inside. A journeyman electrician routes power cables through building framing to the appropriate box. During a roughing phase of construction, electrical boxes with attached plaster rings are mounted to wall studs at predetermined locations. BACKGROUND OF THE INVENTIONĪ power distribution system may comprise an electrical box, a plaster ring and an electrical device, such as an outlet or switch. ![]() ![]() All of the above-referenced patents and patent applications are hereby incorporated herein by reference. 11/108,005 entitled Hinged Wiring Assembly, filed Apr. A wiring support platform is described in U.S. 10/924,555 entitled Universal Electrical Wiring Component, filed Aug. Modular electrical devices, electrical boxes and adjustable mounts are described in U.S. 6,894,221 entitled Safety Outlet Module, issued May 17, 2005. 6,341,981 entitled Safety Electrical Outlet And Switch System, issued Jan. 6,884,111 entitled Safety Module Electrical Distribution System, issued Apr. Wiring modules and corresponding functional modules are described in U.S. 29, 2006 and entitled “PRE-WIRED POWER DISTRIBUTION SYSTEM,” each of which is incorporated by reference herein in its entirety. ![]() 27, 2007, and entitled “PRE-WIRED POWER DISTRIBUTION SYSTEM,” which claims priority from U.S. 21, 2008 and entitled ADJUSTABLE PLASTER RING COVER, which is a continuation of U.S. No home theater system or whole house audio system should be considered complete without the use of OEM’s professionally designed and engineered Pro-Wire products.This application is a continuation of U.S. The Pro-Wire line consists of modular connectors, a wide variety of jack plates, banana plugs, volume controls, decorator style blank plates, mud rings, box buddies and more. In addition to home audio speakers, OEM Systems Company offers a wide variety of accessories under their popular Pro-Wire product line. High Performance Accessories From OEM Systems OEM Systems low voltage mounting rings feature conduit flanges off-set by 5/8" which enable un-obtrusive use of conduit connectors. The Mud Ring uses a patent pending pull-off alignment tool that makes combined installation and alignment of 110 VAC and low voltage devices simple and quick. The OEM Systems Low Voltage Mud Ring is designed for positioning low voltage devices next to 110 VAC electrical boxes with standard NEC spacing so that the combined 110 and low voltage device(s) may be covered with one multi-gang coverplate for an elegant appearance.
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