This is a typical diagram of how to wire a light switch. There may or may not be a power out line that feeds something else in the circuit, or there may be more than one power out line, depending on what was handy for the electrician at the time.
CAUTION:
DO NOT EVER WORK ON LIVE ELECTRICITY! ALWAYS TURN OFF THE CIRCUIT BREAKER BEFORE TOUCHING THE WIRES! EVEN IF YOU TURN OFF THE POWER, TREAT IT LIKE IT IS STILL HOT! ELECTRICITY CAN KILL YOU!
Ground Wire:
The orange line represents the ground wire. This is typically the bare wire or sometimes it’s green. Not all switches have a ground wire connection, but it is a good idea to have it. Some older homes don’t have a ground wire in the wiring, so it may not apply. It’s just an extra safety precaution in case the switch breaks on the inside and somehow connects the hot wire to the body of the switch (wouldn’t that be a rude awakening?). If the ground wire is connected and that happens, the circuit breaker will see a short circuit and kick off.
Neutral Wire: The neutral wire is the circuit return path and is normally colored white. All the white wires should be tied together to complete the circuit, and as you can see, there is no connection on the switch for it. DO NOT connect them to the switch unless you want to see fireworks (or at least a popped breaker)!
Hot Wire: The hot wire is typically the black wire. Tie all your hot wires together to feed the other devices in the circuit, except the one going to the light (called the switch leg). If there are no power out wires in the box, only the one hot wire coming in, you can just connect it directly to the switch. If there are other power out wires, you will have to tie them all together and cut off a short piece of black wire and connect it in with the others to supply power to the switch.
It’s always a good idea to twist the wires together with your pliers before screwing on the wire nut to ensure a good, solid connection. It will help to prevent intermittent problems.
Wire How To: Single Switch and Light (alternate)
This wiring diagram is for when your power feed is in the light box instead of the switch box. You’ll notice the main difference being that you use the white wire in the cable going to the switch box as the switch leg and the black wire as the power feed.
Some electricians will tie the white wire in with the power feed and use the black one as the switch leg, but either way, the switch doesn’t care which is which.
Again, I cannot stress enough to be very careful with your connections here. If you accidentally tie the white wire from the switch into the other white wires in this configuration, there will be fireworks!
Here’s a wiring diagram of a light circuit with three lights hooked up to one switch and an outlet receptacle in the same circuit. You can hook up as many lights or receptacles together in this way as the circuit will handle.
Wire How To: Three Lights on a Single Switch and an Outlet Receptacle
This is a typical diagram of how to connect 2 switches to the same light. It’s especially handy for stairs, hallways, and big rooms.
You will notice that the power feed goes into one switch box, while the switch leg (light wire) goes into the other. There is also a “traveler” line that connects the two together.
Traveler: The traveler is a 3 wire Romex cable with a ground. In other words, there are 3 insulated wires and an uninsulated ground wire.
The ground wire is for added safety and all grounds should be tied together to maintain the safety path.
The white wire is the neutral wire which is the circuit return path for the light. It also goes to ground, and all white wires should be tied together to maintain the circuit path.
The red and black wires are the travelers that hook the two switches together. These are attached to the 2 top terminals (or bottom – depending on how you’re holding it). It doesn’t really matter which one goes where on those 2 terminals.
Wiring Diagram: 3-Way Switch (alternate)
This is an alternate way to wire 2 switches to the same light. Sometimes it’s more convenient to put both the power feed and the switch leg in the same switch box.
How do people feel when they’re about to do an electrical wiring project for the first time?
Suppose a guy has never done electrical wiring before, and he wants to do a project around his house that involves running new wire and tying into an existing circuit. How would most people feel in this situation? Do they know how to do everything correctly?
i would say anxious. They don’t know what they are doing. They do it anyways and know it is dangerous. They figure if someone else can do it, so can they.
It is easy to put a black wire on a black wire and white on white. But to have the knowledge in why we do it this way or that takes time, reading and a clear explanation of the code.
Home wiring is easy and pretty basic. But do you know how many outlets you can put on a circuit? How about lights? Can you put a 15 amp outlet on a 20 amp circuit? At what height should the outlets be? How many feet is allowed between each one? Where are GFCI outlets required? How many neutral wires can you put on each terminal or screw? How many wires can you have in a box?
Can you use the outlet as a tie point for the neutral wires? What does bonded mean? What do you have to bond to the ground in the panel? What are the maximum amount of circuits you can have in a panel? Can you add heaters or an AC unit to an existing panel?
I have been doing this stuff for almost 14 years and I am still learning!
Electrical Code Inspection Wiring and Devices, Show Me How V
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Disaster movies used to work because there was little certainty as to who would survive. Not so in this film, really an amalgam of two original stories, about a group of well-to-do celebrants at the top floor of a skyscraper. Cheapo electrical wiring and bad construction management cause an enormous blaze at the lower floors, steadily rising to consume the revelers. Newman’s an architect, McQueen …
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North Carolina Mfg Oems Register for November Amcon Show at Greensboro Coliseum
AmCon offers attendees a unique opportunity to investigate a variety of manufacturing options, both new and traditional, and find the best processes and materials for specific applications. Attendees view actual samples of products that have been produced for other OEMs in their industry and can get quotes on current projects and compare quality, pricing, and lead times from multiple vendors all in a few hours.
The benefits of attending a regional AmCon show are significant. The AmCon North Carolina Contract Manufacturing Expo will be held in Greensboro, North Carolina on November 18-19, 2008 at the Greensboro Coliseum. Greensboro, Winston-Salem, and High Point, make up North Carolina’s Piedmont Triad. That area of North Carolina is home to a diverse group of manufacturers, including industrial machinery and equipment, automotive, aerospace, medical, and electronics. According to Kati Olson, President, “AmCon is the only show in the Piedmont Triad where job shops and contract manufacturers can meet face-to-face with serious OEM buyers of custom manufacturing services from the region.”
Major manufacturers in the region include RFMD, Hayward Pool Products, Freightliner, Gilbarco Veeder-Root, Siemens Power Generation, Penn Engineering, BE Aerospace, Wilson-Cook Medical, Eveready Battery, Arrow International, Technimark, Cooper Tire & Rubber, Honda Aircraft, Engineered Controls, Mickey Truck Bodies, Deere-Hitachi, Johnson Controls Battery, Duracell, Diebold, Proctor & Gamble, General Dynamics Adv. Info. Sys., GNK Driveline, A O Smith, General Electric, McRae Industries, Metzeler Automation, Pentair Water Pool & Spa, Santronics, Magneti Marelli Powertrain, Static Control Components, Meon, Honda Power Equipment, Atrium Companies, Konica Minolta, Pass & Seymour, Tyco Electronics, Volvo Group, Environmental Air Systems, EMC Corp., and Analog Devices.
Engineers and buyers attending an AmCon Contract Manufacturing Expo can find one or multiple sources to take a project from concept or prototype to finished product quickly and at competitive prices. OEMs can find sources for engineering, design, prototypes, forming, fabricating, machining, finishing, assembly and electronic manufacturing services all under one roof. Whether looking for one part or production runs, attendees find multiple sources from which to choose. Only AmCon shows provide a “hands on” one-on-one education. Since the exhibits are staffed with top management and technical personnel, attendees have an in-depth discussion regarding project design, materials and production issues. AmCon shows are free, including seminars on a variety of manufacturing processes and quality issues. To register for the North Carolina event go to: www.AmConshows.com.
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