Latest Discussions : Electrical & Lighting


11:40AM | 10/25/04
Member Since: 10/24/04
1 lifetime posts
When my house was built 25 yrs ago they used Aluminum wiring. We are now remodling the kitchen and need to legthen some of those wires, which are #12 & #14. What's the poper way to do it without running all new wire back to the box?

Tom O

02:10PM | 10/25/04
Member Since: 09/17/02
476 lifetime posts
I don't believe that aluminum cable ever came in #14, I think what you're looking at is probably #10 & #12.

Anyhow, there is a special connector from AMP called 'copalum" I think. They must be installed by a factory trained installer. Fairly expensive.

Option 2, use small aluminum split bolts that have a divider to keep the copper & aluminum conductors separated. Trouble is, this connector would only be listed for 2 wires.

Option 3, Ideal manufacturing makes a wirenut that is listed for copper to aluminum connections. One of the conducotrs must be copper. The wirenut must be discarded if you take it off, it is one time use only. They are very bulky & you might have trouble fitting everything back into the box.

Those are the only options I can think of short of jerking out the old wire.

Good luck



06:24PM | 10/27/04
Also an important note;

Whenever joing aluminum wire with copper or clad, be sure to use a oxidation inhibitor such as "Noalox" from Ideal. It's in a little blue tube available at the home center. Here's more info:

Be sure to coat the joining wires with this paste before splicing. Good luck.

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