How to Make an Electrical Cable Splice


By Dave Rongey - Summary:

How to Splice Electrical Cables: Where the cables enter into the junction box will depend on the cable orientation, however I have found that it is best to enter at the same side in order to line up the conductors evenly for the splice.

Tips for Splicing Electrical Cables

Electrical Question: I need to lengthen a section of 6-6-8 XHHW copper wire for a 50 amp electric range in my kitchen which is fed overhead.

This electrical wire splice question came from: George, a Homeowner from Forked River, New Jersey.
Additional Comments: Great site! I picked up some great tips so far. Thanks!

Dave’s Reply:
Thanks for your electrical wire splice question George.
George, here are some tips for making this splice.

How to Splice Electrical 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 electrical tools and access to the wiring.
Precaution: Identify at the panel the circuit to be spliced, turn it OFF and then Tag it with a Note before performing any wiring.
Notice: Installing or modifying 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.

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FAQs Frequently Asked Questions and Comments

6 Responses to “How to Make an Electrical Cable Splice”
  1. Dave Rongey says:

    Hi Keith,
    Because this device has a motor I would suggest locating a specific voltage adapter that can be used for the specs indicated on the sewing machine.

    I Hope this helps,
    Dave

  2. Keith says:

    My wife has sewing machine from Europe, it is 220 volt with a round two prong plug. Is there anyway I use this machine?

    Keith

  3. Dave Rongey says:

    Hi Alan,
    The wire splice should be done inside an electrical junction box or enclosure. If the junction box you choose is metal then insulated bushings should be used to protect the wiring as it enters the openings of the box. Be aware that open electrical wiring that is not protected in a garage should be covered with sheet rock and protected, or the wring may be installed into an electrical conduit. Wire connectors must be sized appropriately for the size wire that is used.
    Dave

  4. Alan says:

    I need to splice in a wire from a new motion light into the feed wire in my garage.
    The feed wire is old and may be cloth, it is coming down one of the rafters and contiuing on back to my workbench. How should I splice in the new wire?

  5. Dave Rongey says:

    Kelly,
    If both of the range cords are the same, except the original is longer, then yes you can swap the two cords. Pay close attention to the wiring configurations. There is more help for you at: Wiring a Range Cord
    Happy Cooking and send me your Favorite Recipe!
    Dave

  6. Kelly says:

    We are replacing an older range with a “new to us” model. The power cable/cord is too short. Can we swap the power cables between these two ranges? If yes, do you have tips, tricks, directions, or cautions for us? If no, how can we resolve this? Moving the power receptacle is not an option.