ask the electrician
Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable


NEC Electrical Code for Re-Identifying Ungrounded Conductor


How should I Identify Electrical Conductor Wiring? NEC Article 200.7 (C) Re-Identifying Ungrounded Neutral Conductors.



Home Electrical Wiring Video

How To Hook Up a Generator to the House Panel
Using a Circuit Breaker Interlock Kit
for Backup Power

NOTE: A List of All my Helpful Videos
Will Display at the End of This Video
So Keep Watching So I Can Help You Wire it Right!

Check out my YouTube Channel:
» AskTheElectrician «
and Subscribe!

Learn more about Home Electrical Wiring
with my online Video Course:
Basic Home Electrical Wiring by Example

How to Identify Electrical Circuit Wires
Electrical Repair Question: How should I Identify Electrical Conductor Wiring?

My electrical inspector told me I needed to “Re-identify all white conductors in cables used for ungrounded conductors”.

This home electrical question came from: Tammi, a Homeowner from Cary, North Carolina.

Additional Comments: great idea, hope it solves my issue.

Dave’s Reply:
Thanks for your electrical repairs question Tammi.

How to Identify Electrical Circuit Wires

NEC 200.7 (C) Re-Identifying Ungrounded Neutral Conductors
Re-Identifying Ungrounded Neutral Conductors for Electrical Wiring

Tammi, You have not identified the equipment that the inspection is referring to therefore I am unsure about the circuit that the inspection is referring to, as well concerning re-identifying the white conductors in the cables that are used, however pay close attention to the Cables that are used, and the Neutral wire conductors because this is what the inspector is concerned with. If the equipment and circuit is 240 volt and the circuit has been fed with a 2-wire cable with ground then the white wires that will be used as hots will need to be identified with black electrical tape. If the equipment and circuit is 120 volt then the Neutral wires should be identified with white electrical tape if needed.  Keep in mind that your electrical inspector should be available by calling your local building department and you may ask for clarification about anything having to do with your project. If your inspector does not provide the help that you need then ask to speak to their supervisor or the manager of the building department.

More about Electrical Codes

Electrical wire
electrical-wire

For more information about Electrical Code
Electrical Code
Electrical Code

This link is helpful as a Homeowner
Do-It-Yourself Electrical


The following may also be helpful for you:

Dave's Guide to Home Electrical Wiring:

» 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.
  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, 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.


Learn more about Home Electrical Wiring
with my Online Video Course:
Basic Home Electrical Wiring by Example


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.


More articles about Electrical Code NEC, NEC 200.7(C) Re-Identify Ungrounded Conductor, Wiring Methods and Home Electrical Wiring:
« Previous Next »
Wiring an Electric Stove Kitchen Countertop Receptacles NEC 210-52