Having trouble getting a solid, reliable WiFi signal in some parts of your home A WiFi repeater could be the solution for you.A WiFi repeater or extender is used to.Electrical Box Types Sizes for Receptacles How to choose the proper type of electrical box when wiring electrical receptacles wall plugs or outlets.Series 70A, L70A Hot Water Extender Tempering Valves are used in residential water supply applications to mix cold and hot water to extend capacity of water heater.How To Install Electrical Box Extender' title='How To Install Electrical Box Extender' />Electrical Box Types Sizes for Receptacles when wiring receptacles outletsInspect.APedia tolerates no conflicts of interest.We have no relationship with advertisers, products, or services discussed at this website.Guide to types of electrical receptacles wall outlets or wall plugs How to choose the right type of electrical receptacle when adding or replacing a wall outlet in a building.Here we describe matching 1.Amp receptacles to 1.Amp circuits, 2. 0 Amp receptacles to 2.Amp circuits, two wire receptacles where no ground is present, GFCI and AFCI electrical receptacles, and the proper electrical box to hold and mount these devices.This article series describes how to choose, locate, and wire an electrical receptacle in a home.Electrical receptacles also called electrical outlets or plugs or sockets are simple devices that are easy to install, but there are details to get right if you want to be safe.Green links show where you are.Copyright 2. 01. 7 Inspect.Apedia. com, All Rights Reserved.Choose the Proper Electrical Junction Box When Adding a Receptacle.The proper sized and type of junction box must be used to house the electrical receptacle, must be properly secured in the wall, and must be located at the proper height from the floor.The National Electrical Code Article 3.We give some basic electrical box size examples just below.If the junction box is too small you face several problems such as crowding which forces wires to be jammed and bent into the box, increasing the chance of a loose connection or damaged wiring, and worse, arcing.If the clearance between the metal box and other live electrical parts is too small, arcs and short circuits could occur, as we depict in this sketch courtesy of Carson Dunlop Associates.Article Contents Table of Electrical Box Sizes vs Number of Wires Allowed.NEC Table 3. 14. 1.A Metal Electrical Boxes for Devices.Box Dimensions Inches Trade Name.Minimum Cu. In. Max Conductors AWG 1.Max Conductors AWG 1.Device Box. 7. 5 cu.Device Box. 10. 54.Device Box. 12. 5.Device Box. 18. 98.Device Box. 10. 3.Device Box. 13. 65.Device Box. 18. 76.Notes The National Electrical Code Article 3.This is an excerpt pertinent to wiring electrical receptacles and switches other wire sized and applications are given in the source NEC.NEC 3. 14. 1. 6B Electrical Box Volume Required Per Conductor wireConductor size wire size Free space within the box for each conductor.No. 1. 42 cubic inches.No. 1. 22. 2. 5 cubic inches.No. 1. 0 2. 5 cubic inches.Notes This is an excerpt pertinent to wiring electrical receptacles and switches other wire sized and applications are given in the source NEC.Typical Electrical Boxes for Single Receptacles, Switches, or Splices.Typical electrical junction boxes used for receptacle installation to accommodates a single receptacle are 2 x 4 metal or plastic boxes of varying depth.Choose a deeper box if you have more than the minimum number of wires entering leaving the box or it will be over crowded and may violate building electrical codes.Below are an older style steel electrical boxes nailed to wood framing in a building.The box is carrying six wires in total two hot, two neutral, and two grounds.At above right in addition to aluminum wiring hazards the box is overcrowded.See ALUMINUM WIRE REPAIR SPLICE SPACE.Also. See ALUMINUM WIRING HAZARDS REPAIRS.Its likely to be permitted and safe to install a larger sized junction box than you need for an outlet or switch or wire splice, but you may need to purchase a special adapter cover for the box in order to properly secure an electrical outlet therein.Installing a junction box that is too small is illegal and unsafe.Typical 4 inch Electrical Boxes used for Single or more often Duplex Electrical Receptacles. Mozilla Firefox 2008 Kostenlos Downloaden . Below left we show a typical 4 inch metal junction box, and below right a common and deeper plastic junction box.Electrical junction boxes are required for all wall plugs Reader Question Do I really need an electrical box to put a new wall plug in Thomas.Reply Yes, Thomas, electrical devices such as switches and receptacles wall plugs need to be mounted in a code approved plastic or metal receptacle box for fire safety as well as to assure that the device is mechanically secure.In fact when you purchase a wall plug youll see that its metal mounting ears and screws are spaced and designed to connect to an electrical box.Watch out while its physically possible to install a wall receptacle or plug without using an enclosure, doing so is dangerous, risking fire and shock, and of course, its also illegal in virtually every building code jurisdiction.Take a look at our photograph at left a fire was contained within this electrical junction box.Had the box been omitted there is a good chance the fire would have spread to the building itself.When we hear a question like this it makes me very afraid for you and for future building occupants as amateur electrical wiring is dangerous.Details about how to wire up an electrical receptacle are at ELECTRICAL RECEPTACLE CONNECTION DETAILS where to connect black, white, red, green, ground wire.Gang Boxes built up electrical boxes for more space.Gang boxes are steel electrical boxes with removable sides and screw fittings that permit multiple metal boxes to be joined together to obtain more space.As we discuss at ALUMINUM WIRE REPAIR SPLICE SPACE, Some electrical boxes installed as original work are stamped out of a single piece of steel and cannot be expanded.Others called gangable metallic boxes such as by Thomas Betts Steel City Brand installed as original work included side plates that could be removed to install a sidecar extension.Gangable electrical boxes can be expanded by adding another box along the open away from the stud or joist side of the existing box requiring a larger wall opening, or by adding a side car extension that hides behind the wall surface.Sketch at left illustrates the removable side plates on a gang type electrical box.Boxes of this type can be expanded along their open side the side that has not been already fastened to a stud or joist.To add an electrical box extension you must have access to the top or bottom screw on the open side of the box to remove the side plate thats where youd add on a second gangable box as an extension or a side car hidden box extension.Watch out it will be almost impossible to extend an original work metallic box size using an extension without cutting open and thus damaging the wall at one side of the box.However in my OPINION drywall repairs are trivial compared with the cost of complete re wiring with all copper in a building with aluminum wired branch circuits.Gang Box Extenders for More Wiring Space.In addition to screwing multiple gang boxes together to construct a large new work electrical installation, gang boxes can be extended behind the wall to obtain a small amount of additional wiring space illustrated below.At above left is a single gang box steel electrical box.At above right Ive removed the left side of the gang box and I have installed a steelside car or box extender yellow arrow in the photo below to increase the cubic inches of wiring space in this electrical box.These box extenders can be used to add a small amount of wiring space that can bring an otherwise too small gang box up to code without having to cut a larger opening in the building wall.Youll notice that the box extender is shaped to be recessed to slip behind the thickness of the plaster or drywall.At below right we see a modern GFCI electrical receptacle shoehorned into a too small gang box that has been extended with a box extender or sidecar in order to try to include Alumi.Conn aluminum to copper pigtailing connectors.See ALUMINUM WIRE REPAIR SPLICE SPACE where we discuss all of the approaches to obtaining more wiring or device space in electrical boxes.Where wall depth permits, a better approach where more wiring space is needed is to remove the existing electrical box and install a deeper box in the same opening.Electrical box extensions supplies for more wiring space or increased cubic inches of electrical box space.Thomas Betts ABB Group Steel City electrical boxes, Thomas Betts Corporation.T B Boulevard. Memphis, TN 3.Phone 9. 01 2. 52 5.Phone 8. 00 8. 16 7.Fax 8. 00 8. 16 7.How to Install Outdoor Wiring.Search engine visitors click here to.Home web. Projects Weekend Projects List.Fix It Yourself Projects List.Do It Yourself Weekend Project 1.How to Install Outdoor WiringTool and Material Checklist.Cable wire for exterior use check codes, Outdoor switches, Outdoor.LB fittings, Box extenders, GFI, Tiling spade, Electric drill.Masonry bits, Lighting devices, Lineman pliers, Wire strippers, Wire nuts.Electricians tape.Exterior wiring is different than interior wiring because water and extreme.Outdoor wiring projects are not difficult for a.Outdoor wiring projects fall into two general categories functional.Functional lighting illuminates high use areas such as steps.Decorative lighting adds dimension.Functional lighting can also be decorative.Local Codes First, contact the municipal building inspector to.Sometimes these retailers service many different communities with many code.In some areas, only a professional electrician can make the final.In other areas, the work must be inspected before it can be.Find out if local code permits the use of Type UF cable, or if it specifies.Type TW wire and conduit.Generally, local codes require that outdoor wiring be.If wiring will be buried, most codes allow Type UF cable.However, some. require that Type TW wire and conduit be used.The National Electrical Code now requires No.Ground Fault Interruptors.Ground fault interruptors GFI are now required by the National Electrical.Code NEC in all outdoor areas.A GFI is an electronic device that supplements conventional circuit breakers.The device electronically compares amperage flowing through the hot.If the circuit is not.But if there is a difference of as.GFI detects the loss of current and.This can save your life.Types of Cable. Type UF is covered by heavy plastic sheathing.The cable is designed for.Type TW wire has a thin thermoplastic insulation that provides the wire with.However, for maximum protection, the wire.Outdoor Switches.Heavy cast metal is used for switch boxes that will be mounted outdoors.Cover plates for the boxes are made from the same material and are outfitted.Outdoor Light Fixtures.These boxes possess the same characteristics as boxes for outdoor.To inhibit moisture, there is a gasket made of the same material.This seals the joint.Also be sure to use.They resist shattering when the temperature drops.Connectors and Fittings.LB fittings are right angle connectors that are used with conduit to bring.The connectors are fitted with thick gaskets.Box extenders are used when tapping an existing outdoor receptacle or.The extenders may be outfitted with a nipple.Conduit. Three kinds of conduit are made for outdoor use.Rigid aluminum and rigid.Rigid aluminum is easier to work with, but if it is going to be buried in.Rigid plastic conduit is made from either polyvinyl chloride PVC.If PVC is going to be exposed to direct sunlight.Although each type of conduit is available in a variety of diameters.This is wide enough to accept one AWG No.UF cable or nine individual AWG.No. 1. 2 wires. AWG American Wire Gauge, an industry standard.Each type of conduit is available in a variety of fittings, including.If offsets and elbows.EMT conduit, you will need.A hickey sometimes can be rented.If not, the cost is.Power from the Basement.Follow these guidelines for bringing electricity from a basement to the.CAUTION Turn off the power, if it is on the working.Do not. work with the power on.Pick a reference point on an exterior wall that is identifiable on both.Inside the basement, measure from the reference point to a spot on a wall.The spot should be at least 3 inches.The space is needed for the thickness of a.Outside the house, measure from the reference point to the power exit.Be. sure the spot does not fall on a joint between bricks or blocks.The spot has. to have a firm base for a LB fitting.Outside, drill a 18 inch hole through the wall to verify that the path.Blocks below the top row usually have hollow centers and are easier.Cut the opening for the extender, using a star drill and baby sledge.Wear safety glasses and gloves.Inside, open one end of the knockout holes from the back of a junction.Fasten the box to the wall with lead or fiber screw anchors and flat head.Outside, dig a trench for the cable.Onto an LB fitting, screw a nipple long enough to extend from inside the.Outside, attach conduit to the LB fitting and run the conduit down the.Use conduit straps or hangers to hold the.Seal the joint around the LB fitting with a quality caulking compound.Inside, secure the nipple to the junction box with a connector.Install. a plastic bushing over the connector to protect the wires or cable.Pull the cable through the conduit and make the necessary connections to.Power from the Attic.These fittings are required to bring power from an attic to the outside an.Follow these guidelines.Turn off the power on the circuit you will be connecting to the outdoor.Position the assembly against the overhang soffit so the box and nipple.Try to run the. conduit next to a downspout to hide it.Mark the soffit where the cable from the power source in the attic will.Drill a hole in the soffit.Drill pilot holes to accept No.Run the cable from the power source in the attic out the hole in the.Fasten the cable to the box with a 2 part cable connector and then.With conduit straps, strap the nipple and conduit into place and run the.Once the cable has been laid to the new junction box, hook up the wiring.The Trench. When laying out a path for the trench from the house, try to make the path.If you cant, make the bends gradual curves, not sharp turns.Outline both sides of the trench with stakes and string.The trench. should be 4 inches wide.Cut along the string outline to a depth of 3 to 4 inches.Use flat tiling. space.Dig out the sod and lay it on plastic sheeting.Dont soak it just sprinkle it with water.Dig the trench. If you are using EMT conduit or UF cable, the trench.Rigid metal or plastic conduit requires a 6 inch.Check the local utilities for a buried pipewire site plan before you.If you have lots of trenching to do, rent a power trenching tool.Free Standing Receptacles.An outdoor receptacle should be at least 1.Do this by laying the cable or.Connections. By National Electrical Code, all splices must be made inside an outlet.The splices must be made with Wire Nuts.It also is. suggested that the nuts are wrapped lightly with electricians tape for added.Connections to terminals are made with wire ends looped in.This way, the wire is tightened.Strip about 34 inch of insulation from the wire.Use wire strippers for.If cable, strip the outer insulation from it about 6 inches so the.Lay the cable on a flat solid surface and use a.Be careful not to cut the insulation on the wires inside of the.
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