Safety Tips: DIY Electrical
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| Read markings on old outlet and switches before buying replacements. Choose replacements with the same voltage and amp ratings. If you have aluminum wiring, or if the old outlet or switch is marked CO/ALR, select a similar replacement. | Test for grounding by inserting one probe of neon circuit tester in a vertical slot. Touch other probe to metal coverplate screw. Repeat test with other vertical slot. If tester lights, outlet is grounded and a new 3-slot receptacle can be installed. |
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| Install GFCI (ground-fault circuit interrupter) whenever replacing a receptacle near water or plumbing, or outside. A GFCI detects changes in current flow and quickly shuts off electricity in outlet before shock can occur. Install GFCI receptacles in laundry rooms, bathrooms, kitchen or outdoor outlets. | Three-prong plugs should be used only in a properly grounded outlet. If using a 3-prong adapter, test to make sure it is grounded. Do not alter the plug to fit a 2-slot receptacle. |
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| Polarized plugs use prongs of different width to maintain proper circuit continuity and protect against shock. If you have a receptacle that will not accept polarized plugs, do not alter the plugs to fit the outlet. Install a new receptacle after testing outlet for grounding. | Protect children against the possibility of electrical shock. Place tight protective caps in any receptacles that are not being used. |
