ANOTHERG & G ELECTRIC AND PLUMBING DISTRIBUTORS, SHEETCOPYRIGHT 198914These How-To-Do-It sheets have been reviewed in June 2007 by a professional Engineer. If you find a problem, please notifyG & G Electric & Plumbing at 1900 NE 78th Street, Ste. 101, Vancouver, Washington 98665HOW TO HOOK UP SWITCHES & PLUG-INSYour job is nearing completion. If you madeup the wire splices as you installed thewiring, all you have left to do is to installthe switches, outlets, and the light switches and outlets have both push-in(E-Z wire) and conventional screw using the push-in connections, be sureto strip the correct length of insulation fromthe wires. A gauge for making the properdetermination is usually molded into theback of the device. Most push-in terminals willonly work with #14 AWG wire so you will needto verify the allowed sizes of wire for the brandof device you have. If your wire is too large touse the push-in terminals you will need to usethe screw-down in E-Z wire terminals are normallymarked as to which wires they aresupposed to hold. If not marked, the wireconnection can be determined by the screwterminal to which they correspond. Silverscrews are found on one side of outlets andbrass on the other. White (neutral) wiresconnect to the silver screws and the black(hot) wires hook to the brass. Plug-ins andswitches have a green screw to which mustbe connected the bare ground , the ground wire is covered withgreen insulation. If metal boxes are used,the ground wire must also be attached tothem. This step should have been completedearlier during the roughing in. Refer todiagrams 1 & 2 of How-To-Do-It Sheet #15"Device Wiring Diagrams" which show thisoutlet outlets have a break-away bar betweencommon terminals. When removed, itseparates the top plug from the bottom. Often,rooms that rely on outlet lighting will have allthe bottom plugs controlled by a ram #7 of the aforementioned sheetshows this use. Kitchens are also moreconvenient when wired with a split receptaclecircuit as it avoids overloading a circuit whenmultiple, heavy appliances are plugged into afavorite receptacle. This type of circuit mightbe permitted on a three-conductor cable witha neutral wire that is common to both circuitsBUT it should be checked out with loca la uthorities for acceptance before beinginstalled. Care must be taken to ensure thatboth circuits sharing the common connect tobreakers on different phases (referred to as an Edison circuit) or the common will becomeoverloaded. If someone re-arranges thebreakers later (unaware of the need to followproper phasing) it will result in an overload ofthe common. A double pole circuit breaker isrecommended for this application (and requiredin some areas) as it will disconnect power toboth circuits when tripped and keep themcorrectly phased. Edison circuits will generallynot work with GFCI (ground fault) and AFCI (arcfault) most common switch connection isshown in Diagram #2 of the How-To-Do-It Sheet #15, "Device Wiring Diagrams." It is asimple switch leg hooking to a single poleswitch. One wire connects to each of its twobrass terminals. Some single pole switcheshave "common" written between two means that the hot wire could be con-tinued through the switch by using theseterminals. This common should not be confusedwith the common terminal on a 3-way will be discussed Diagram #3, both wires (hot and neutral)pass throug h the sw itch b ox w ith the hotsid e b eing switched while the neutral isspliced. Notice that in Diagram #5, a thirdwire must be used between the fixture outletand the switch box in order to be able to use aswitch and outlet combination. This combinationdevice can also be used when the wiring passesthrough the switch box as it does in Diagram#3. (continued on the reverse side)ANOTHERG & G ELECTRIC AND PLUMBING DISTRIBUTORS, SHEETCOPYRIGHT 198914These How-To-Do-It sheets have been reviewed in June 2007 by a professional Engineer. If you find a problem, please notifyG & G Electric & Plumbing at 1900 NE 78th Street, Ste. 101, Vancouver, Washington 98665Three-way switches have one terminalthat is much darker in color than the othertwo brass ones. This is called the commonterminal and is the point on one of theswitches to which the incoming hot isconnected. The common terminal of theother switch is where the final power leg to thefixture is connected. Follow these wires inDiagrams #8 thru #10. Note: The commonterminals on three-way switches are notalways in the same place. Our Diagramshows them in the upper left side of theswitch as you look directly at the front ofthe switch, but other manufacturers ormodels may have them in the lower rightposition. Look for the darkest of the threeterminals, this is the wires that hook to the commonterminals should be connected first. Theother two wires carry power from switch toswitch are called the travelers becausethe current is always flowing through one ofthem. Determining which wire goes to thecommon first will help prevent problemslater when hooking up the travelers as theyreally can t be connected dimmer switch can be used on a three-way circuit. A three-way dimmer canreplace the switch located at one end of thecircuit. The device at other end remains athree-way switch. The light will come on atwhatever level the dimmer is set. Specialelectronic dimming devices are availablethat enable one to control the light level atboth ends of the circuit. See a GroverSalesperson to explore this a 4-wa y switch into a 3-wa y switching circuit as shown in Diagram #11is a simple matter. This switch merelyreverses the travelers when the handle ismoved. Add as many 4-way switches as youneed for convenient on-off switching electrical connections should be tightlymade up. E-Z wire connections are held bytension and, if removal becomes necessary, itcan be done by inserting the blade of a smallscrewdriver into the slot and pushing it torelease the clip that holds the the wires are connected to the device,they should be folded so they will allow thedevice to be fastened into the box withoutstrain. Switches and outlet receptacles havebendable mounting tabs that can be adjustedto hold the device in a position that will allowthe wall plate to fit properly to both thedevice and the wall.
HOW TO HOOK UP SWITCHES & PLUG-INS
ANOTHER G & G ELECTRIC AND PLUMBING DISTRIBUTORS, INC. INFORMATION SHEET COPYRIGHT 1989 14 These “How-To-Do …
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