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Electrical Wire and Cable


Wiring a GFCI Outlet with No Ground Wire

How is a GFCI outlet wired for a 2-wire circuit that does not have a ground wire? Wiring a GFCI Outlet on a 2-Wire Circuit.

 

GFCI Outlet Wiring Problem
Electrical Question: How is a GFCI outlet wired for a 2-wire circuit that does not have a ground wire?

I am trying to install a GFCI outlet to a 2-wire circuit that does not have a ground wire. When I use the white wire to connect the ground wire back to the box it is not working. I read an article about how to change a 2-wire receptacle with a ground for a GFCI, and it said it needed the green wire to connect the ground wire from the GFCI outlet back to the box. Will it make any difference if I use the white wire instead of the green wire?

This electrical wiring question came from Lindsey, a General Contractor in Queens, New York.

Dave’s Reply:
Thanks for your electrical wiring question Lindsey.

Wiring a GFCI Outlet on a 2-Wire Circuit

Application: GFCI Outlet.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the GFCI Outlet, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the GFCI Outlet should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in Queens, New York. A permit and inspections may also be required.

Kitchen 2-Wire Circuit and GFCI Outlet

This electrical wiring project is about an Electrical Problem with a GFCI Outlet in the Kitchen of a Apartment.

Wiring a GFCI Outlet on an Ungrounded Circuit

When a 2-wire circuit does not have a ground wire and a GFCI outlet is installed nothing should be connected to the ground terminal. However, if the GFCI outlet is installed in a metal outlet box then a wire may be installed from the ground terminal of the GFCI outlet and bonded to the metal outlet box.

The GFCI will still sense when there is a ground fault.

You can test this with a GFCI plug-in tester and you will see that it works just fine.

More about Wiring a GFCI Outlet

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Kitchen Electrical Wiring

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This list of articles will help you learn about the features and benefits provided by GFI and GFCI Receptacles and how they are wired.

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Listing of electrical codes for grounding with examples of electrical grounding codes for home electrical wiring.


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Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
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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.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.



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