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How to safely splice copper and aluminum electrical wires

How to Splice Copper and Aluminum Electrical Wires – A splice can be made between copper and aluminum wire using any wire connector that is approved for joining AL/CU wires together and following the approved methods.


Splicing Copper and Aluminum Electrical Wiring

Electrical Wiring Question: I have a lamp with copper wiring that I want to install to my house which has aluminum wiring.
Can I do this, and if so, how?
I have read that there are purple wire caps which have a gel inside which will allow the connection – is that correct?

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

How to Splice Copper and Aluminum Electrical Wires

  • A splice can be made between copper and aluminum wire using any wire connector that is approved for joining AL/CU wires together and following the approved methods.
  • Only use wire connectors that are the correct size for the wires to be spliced.
  • Make sure that the wire connectors are of a reputable name brand and have a genuine UL Listing.
  • Apply corrosion inhibitor gel to the wires to be spliced together.
  • Make sure that the wires are firmly secure inside the wire connectors.

The Following will assist you with Splicing  Electrical Wiring

Splicing Electrical Wires
electrical-splice-box

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.
Emergency Electrical Splices
Wiring Electrical Codes

 


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One Response to “How to safely splice copper and aluminum electrical wires”
  1. Ann says:

    I am putting a new ceiling lamp in my shed. The new one has 3 aluminum wires (black, white & green ground casing). The ceiling has two copper wires & one solid copper line (all inside casings). Is it ok to attach copper & aluminum? Is my green ground (aluminum) good to connect to a solid copper line?
    Many Thanks,
    Ann

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