How to Ground Electric Outlets

Grounding Outlets and Receptacles
Electrical Question: I just discovered that I have outlets that are not grounded, what should I do?

• I recently purchased a four unit apartment building.  The electrical entrances are all brand new which made me think every thing was fine.
• A recent inspection showed that none of my outlets are grounded. Everything is wired with the old black wire.
• Two copper wires (No ground wire). Just to be clear it’s not knob and tube. It’s one wire with Positive and negative inside.
• Each apartment has it’s own entrance with a 100 master breaker. Can I simply change this breaker to a GFCI to bring it up to code or am I looking at rewiring the building.
• The previous owner obviously changed to 3 prong outlets from 2 wire. Can I change some of these back to 2 prong and if so where can you find 2 prong outlets. I’ve no desire to do this work myself.

I just want to know all my options before I bring somebody in to look. I don’t want someone to come in and do work that does not need to be done.
Thanks.

This electrical question came from: Mike, a Handyman from Saint John New Brunswick, Canada.

Additional Comments: Awesome website! love it!

Dave’s Reply:
Thanks for your electrical question Mike.

How to Ground Outlets and Receptacles

Application: Ground Wiring for Electric Outlets.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Tools Required: Basic Electricians Pouch Hand Tools a Voltage Tester or Plug-In Circuit Analyzer.
Estimated Time: Depends on personal level experience, ability to work with tools, the extent of the electrical repairs, the number of receptacle outlets that are affected and access to each location.
Precaution: Identify the outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.

Grounding Outlets and GFI Receptacles

• Electrical Outlet Grounding and GFCI Protection
  • Mike, it sounds like the electrical panel was upgraded but the rest of the circuit wiring is original, so you are correct in saying that any 3-wire outlets that were installed where a ground source is not present should be changed to 2-wire outlets.
• Grounding Electrical Outlets
  • The 2-wire outlets should be available from a major hardware store or from a local electrical wholesale distributor.
  • You may install GFCI outlets that have a ground prong in areas such as the kitchen or bathroom ONLY if the receptacle is identified as not being grounded by using the sticker which is included with the GFCI receptacle.
  • The GFCI protection will work the same because it will still sense a fault to ground and trip off.

• Upgrading Electrical Circuit Wiring
  
  • Installing new 3-wire cable whenever possible is always recommended for electrical circuit upgrades, or installing ground wiring that is bonded at the electrical panel is an option as well.
  • All of this work is best installed by a qualified licensed electrician. Always make sure you work through your local building department and obtain the necessary permits and inspections.

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» You Can Avoid Costly Mistakes! « Here's How to Do It: Wire It Right with the help of my Illustrated Wiring Book Great for any Home Wiring Project. Complete Guide to Home Electrical Wiring Perfect for Homeowners, Students, Handyman, Handywomen, and Electricians Includes: Wiring GFCI Outlets Wiring Home Electric Circuits 120 Volt and 240 Volt Outlet Circuits Wiring Light Switches Wiring 3-Wire and 4-Wire Electric Range Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet How to Troubleshoot and Repair Electrical Wiring Wiring Methods for Upgrading Electrical Wiring NEC Codes for Home Electrical Wiring ....and much more.

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

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