Most of your home's receptacles should be grounded. But if they're not, learn how to add this safety feature four different ways.
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If you have an older home, you may want to make sure that your electrical outlets are grounded. Grounding refers to the wire that runs from an outlet into the earth, inherently protecting homeowners from coming in contact with electric energy.

No matter the method, it's important that the ground circuit provides an unbroken path to the earth. Ground wires must be firmly connected at all points. And if conduit or sheathing is used as a ground path, connections must be tight. If you're not sure if your outlets are grounded, a receptacle analyzer will tell you.

This section shows how to install grounding in outlets, fixtures, and switches. These tips will help you ground properly and stay safe.

Editor's Tip: Building codes have changed over the years and differ from region to region. As a result, grounding methods can vary widely. You may find any of several configurations in your home.

How to Ground in Metal Boxes


In a system with metal boxes, the pigtail method is considered the most secure. In this arrangement both the receptacle and metal box are grounded. Ground wires are spliced together and attached with a pigtail to the box and receptacle. The grounding wire nut shown has a hole in its top that makes installing a pigtail easier.

Other methods also work well if installed correctly; one such method is a grounding clip that clamps the ground wire to the box. If a house is wired with armored cable or conduit, there often is no ground wire. The cable connector joins the metal sheathing or conduit to the box to provide the path for ground.

How to Ground In Plastic Boxes


Where plastic boxes are used, a ground wire typically connects to the receptacle only. Here, where wiring runs through this box to another box, a grounding pigtail connects to the device.

How to Ground In Fixtures


Many older ceiling fixtures are not grounded. Recent codes, however, call for grounding. Connect the fixture's ground lead (usually a stranded wire) to the strap on a metal box or to a ground wire.

How to Ground In Switches


Most older switches are not grounded; many switches do not even have a ground screw. Recent codes call for switches to be grounded. Replace an older switch with a newer one that has a ground screw and connect it to a ground wire.


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