What happens when you connect aluminum wire to copper?
Can a copper wire and an aluminum wire have the same resistance?
A copper wire and aluminum wire of same length have same resistance. Specific resistance of aluminum is more than that of copper.
Are there any hazards associated with aluminum wires joined with copper wires by twisting?
Incorrect repairs to aluminum wiring, such as connecting aluminum wire to copper wire with copper twist-on wire connectors, can make the problem even worse and can be dangerous.19 Jul 2021
Why copper and Aluminium cables should not be connected directly together?
When we connect the copper wire and the aluminum wire directly, the contact surfaces of the two materials will easily generate electrolyte under the action of moisture and carbon dioxide in the air and other substances.
Can copper and aluminum touch?
The primary metals of concern in terms of galvanic corrosion contact with copper are aluminum and zinc. Large differences in the thermal expansion rate between copper and these metals may cause additional problems. Also avoid using copper and some brass fasteners with aluminum, zinc and most ferrous metal.21 Jun 2018
Can you join copper and aluminum wire together?
The only way considered safe to connect copper and aluminum is through a splice connector. Specifically, you have to connect the wires individually so they are not prone to corrosion. The effectiveness of “pigtailing” using twist-on connectors has been evaluated by CPSC staff.