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Electrical Wire and Cable
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

Splicing Wires in a Outlet Box


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Summary: Electrical junction box splices can be made safely when you understand the method. This example will show you step by step how to make a outlet box wire splice.


How to Make a Splice in an Outlet Box




Electrical Junction Box Splices
Always locate electrical junction boxes in an access able area.

Use approved junction boxes.
See more about types of electrical junction boxes

Use the correct size wire connector.
See more about electrical wire and wire connectors

After the splice is made be sure to place a cover plate on the box.

Outlet Box Wire Splice


Step 1: Always identify the electrical circuit and make sure it is off.

junction box splice 1 IMPORTANT:
Always be sure the outlet circuit is off. Use a voltage tester to verify the power is off before proceeding.

Install the outlet box in an accessible area. Bring the wires into the box and allow enough length to make your splice.

Step 2: Using a good pair of wire strippers and pliers.

junction box splice 2 After stripping back the insulation about 3/4", twist the bare wire in a clock-wise direction. Trim off the end of the wires evenly.

Step 3: Use approved wire connectors that are the right size for the splice.

junction box splice 3 Select the right size wire connector, otherwise known as a "wire nut". Notice the depth of the connector, your twisted wire sets should not be longer than the depth of the wire connector internal area. Screw the splice connector onto the twisted pair in a clock-wise motion until the connector is good and snug. The bare wire should be all the way into the wire connectors. Bare wire should not be seen. If bare wire is seen, back off the wire nut and trim more of the twisted wire sets and reinstall the connector.

Step 4: Fold the spliced wires carefully back into the junction box.

junction box splice 4 Fold the wire sets carefully into the junction box.

Step 5: Always install a blank cover onto the junction box.

junction box splice 5 Place a blank cover on the junction box and you're all done! You have now made a legal and accessible splice. Turn on the circuit when all the work is completed and completely checked and verified.

» You Can Avoid Costly Mistakes! «
Here's How to Do It:
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Complete Guide to Home Electrical Wiring
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Methods for Home Electrical Wiring
Wiring Diagrams for Smoke Detectors
Interconnected Smoke Detector Wiring
Wiring Methods for AFCI Circuits
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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.



Questions and Answers about Splice Electrical Wires