These are all various kinds of electrical boxes (except the lunch box, obviously). The location and kind of wiring you’re doing determines which type of box to use. The lunch box is going to be used following the job is done. Before we get into specific varieties of boxes, let’s look at some things that are applicable to all types of electrical boxes.
*All electrical connections has to be contained inside Mould Box. The box shields the property material as well as other flammable materials in case of electrical sparks.
*All boxes must be accessible. Never cover a box with drywall, paneling or any other wall coverings.
*If the electrical junction box holds only spliced wires and no device, like a switch, it should be covered with a blank cover plate.
*An electrical box needs to be installed with the front edge flush using the finished top of the wall or ceiling. In the event the space between the finished surface as well as the edge of the box is in excess of 1/8″, then a box extender ought to be installed.
*Ensure your box is deep enough to avoid crowding the wires. It ought to be deep enough so a switch or receptacle can be installed easily without crimping or damaging the wires. Electrical codes determine how many wires of the things size each scale of box can accommodate based on the cubic-inch capacity in the box. As an example, a #14 wire occupies 2 cubic inches and a #12 wire occupies 2.25 cubic inches. When counting wires, count the fixture or device as you wire. It’s always safe to use a big box until you don’t have room in the wall or ceiling.
Electrical boxes come in different materials and other shapes. By familiarizing yourself using the various kinds of boxes, you’ll be able to pick the correct box for your home wiring project.
Indoor boxes are usually either plastic or metal.
*Plastic electrical boxes would be the most widely used boxes for indoor residential wiring. They’re inexpensive and easy to set up. However, because you cannot ground a plastic box, so some local codes do not allow them or they are only allowed for certain uses. Check along with your local building department before using Safety Protecting Case.
*Some plastic boxes have holes w/knockout tabs. These boxes do not possess built in clamps so the cable will not be held in place through the box. You need to use cable clamps and staple the cable within 8 inches in the box if you utilize this kind of box.
*Plastic boxes are simpler to damage than metal boxes, so buy extra boxes just in case. Never use a cracked box.
*Most are brittle; don’t use them where they are certainly not built into the wall. The exception is an outdoor box made from extra strong PVC.
*Don’t use with heavy light fixtures and fans. Some plastic boxes include nails for anchoring the box for the framing material.
*Metal electrical boxes are stronger and supply better ground connection than plastic boxes.
*Metal boxes must be grounded to the circuit grounding system. Connect the circuit grounding wires towards the box having a pigtailed green wire and wire nut, or with a grounding clip.
*The cable entering metallic box must be clamped.
*”Gangable” boxes can be dismantled and ganged together to help make space for several devices.
*These are sometimes called old-work or cut-in boxes.
*Remodel electrical boxes are utilized when running cable to set up new devices into an old wall.
*Plastic remodel boxes have “wings” and metal remodel boxes have expandable clips or bendable ears that hold them within the wall.
Outdoor boxes are usually molded plastic or cast aluminum.
*These boxes are used with PVC conduit in outdoor wiring and exposed indoor wiring.
*They are necessary for outdoor fixtures connected with metal conduit.
*They have sealed seams and threaded openings to maintain moisture out.
Rectangular (2″X3″) Trade Name “One-Gang”:
*These boxes are used for switches and receptacles.
*One-gang boxes may have detachable sides that allow them to be ganged together to form two-gang boxes.
Square (4″X4″) Trade Name “Four-Square”:
*”Plaster Rings” are used as adapters to accommodate the following configurations: One-Gang, Two-Gang, Three-Inch or Four-Inch Round.
*Whenever a square box is utilized only for splicing cables, it is actually called an electrical junction box along with a blank cover plate must be used.
Octagonal Trade Name “Three-“:
*These contain wire connections for ceiling fixtures.
*Some octagonal electrical boxes have extendable braces which will fit any joist spacing and are nailed or screwed towards the framing material.
While selecting the Plastic Waterproof Box for your project will help to ensure the successful completing your wiring project, always respect electricity and follow safety precautions. Never work on live circuits. Before tipyyy begins, the circuit needs to be identified and switched off on the panel, tagging it to let others know that work has been done on that circuit. Confirm the power is with a voltage tester. Electrical work should only be done by a confident, experienced person or with a licensed electrical contractor.