start looking at receptacles, you’ll probably notice even more little details.
Some Receptacles Have a Different Color
You may see outlets with different colors used to distinguish certain functions.
For example, a red receptacle can sometimes indicate a particular circuit or power source depending on the installation.
Color conventions vary, so don’t assume a color means exactly the same thing everywhere.
Some Have “Test” and “Reset” Buttons
These are commonly found on GFCI receptacles.
GFCI protection is designed to reduce the risk of electric shock by monitoring current and disconnecting power when it detects a potentially dangerous imbalance.
They’re commonly used in areas where electrical equipment may be exposed to moisture, subject to applicable electrical requirements. LearnQuantum Physics
Some Outlets Have Little Plastic Shutters
Tamper-resistant receptacles have internal shutters designed to help prevent objects from being inserted into the contact openings.
They’re particularly useful in homes with young children.
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