Electrical Code for Bonding Ground Wires
November 2, 2012 by: Dave Rongey
How to Splice Electrical Wires and the Ground: For projects where you are extending the wiring of an existing circuit then the additional wire size must match that of the circuit you are branching from or splicing. Electrical junction box splices can be made safely when you understand the method.
NEC Code and Bonding Ground Wires
Electrical Question: I believe I read in the NEC that you should never bond different sized wires together (e.g. never bond a 14-gauge wire into a 12-gauge circuit.
- This would imply that I can’t add a simple switched light fixture into an existing 20-amp circuit unless I wire it with 12-gauge wire.
This electrical wiring question came from: Gary, a Handyman from Lake Worth, Florida.
Additional Comments: Very useful resource.
Thanks for your electrical wiring question Gary.
How to Splice Electrical Wires and the Ground
- The NEC Electrical Code that you may be referring to does not apply to your electrical wiring application.
- Yes – you can splice a 14 gauge ground wire from a light fixture to a #12 gauge ground wire in the light fixture junction box.
- For projects where you are extending the wiring of an existing circuit then the additional wire size must match that of the circuit you are branching from or splicing.
- Be sure to use the right size wire connector for the wire gauges and number of wires that will be spliced.
Electrical Junction Box Splice
Electrical junction box splices can be made safely when you understand the method. This example will show you how its done step by step and shows how to make a junction box splice and the related electrical codes.
More about Home Electrical Wiring
Electrical Wire for the Home
Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
Electric Circuit Listing
The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required.
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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 Bonding Ground Wires and Home Electrical Wiring:|
|« Previous||Next »|
|How to Prevent Generator Overload and a Tripped Circuit||How to Prepare an Electrical Panel for a Generator|