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Electrical Wire and Cable

Methods for Splicing Electrical Wires

How to Splice Electrical Wires and Cables: Is it safe to install junction boxes to splice several wires?

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Splicing Electrical Wires and Cables
Electrical Question: Is it safe to install several junction boxes to splice several wires?

This electrical question came from: Bill, a Homeowner from Granville, Ohio.
See more about Home Wiring for Ohio

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

How to Splice Electrical Wires and Cables

Application: Splicing Electrical Wires.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on the personal level experience and ability to work with tools and access to the wiring.
Precaution: Identify the circuit, turn it OFF and then Tag it with a Note before performing any wiring.
Notice: Installing additional electrical wiring should be done according to local and national electrical codes with a permit and inspected.
Special Materials: Properly sized wire connectors, anti-corrosion ointment, electrical tape, junction box and blank cover.

Safe Practices for Splicing Electrical Wiring

The process of splicing electrical wires is to safely join the wires in a junction box using approved methods.

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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.

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FAQs Frequently Asked Questions and Comments

2 Responses to “Methods for Splicing Electrical Wires”
  1. Dave Rongey says:

    Hi Terry,
    All of the wires may be spiced inside one junction box, however the box must be rated for the number of wires that will be installed. Yes, there are a few types of wire connectors that will allow you to make what is called a Butt Splice, where both ends of the wires are placed into a straight crimp connector. Make sure the splice connector is rated for the wire sizes to be spliced, and the crimp tool which will be used makes a tight splice. The wires that will be spliced must match up to each other, so be sure to keep the wires organized or label them for identification.
    Thank you for sharing your electrical wiring question with us,

  2. Terry yeary says:

    Junction Box for Splicing Electrical Wires

    A thief has cut the wires in the basement, about 7 of them. The wires are right next to each other. Do the splices have to be in individual junction boxes? Are there some splices where you just slide the wires into a little plastic strip and the wires line up with each other?