Both clear up the problem of connecting two completely different metals which normally can't be accomplished directly. You need to use particular contact paste to aluminum wires earlier than inserting them into connector. The Ideal purple wire-nuts are listed, and have to be used in accordance with the merchandise directions.
This wire sort is great for metalworking, forming, and machining. Pigtailing – it is a less expensive method to primarily merge the aluminum and copper wires collectively although much less preferred.
After a screw has been over-tightened on aluminum wiring, for example, the wire will continue to deform or “move” even after the tightening has ceased. This deformation will create a loose connection and increase electrical resistance in that location. Aluminum will fatigue and break down extra readily when subjected to bending and other types of abuse than copper, which is extra ductile. Fatigue will trigger the wire to interrupt down internally and can more and more resist electrical current, leading to a buildup of excessive heat. The problem is that almost all ways of connecting copper to aluminum aren't protected due to corrosion issues.
None of the merchandise you've linked appear to be marketed specifically for copper-aluminum connections. Stuff like splicing connectors or push wire connectors are for that purpose.
This would primarily contain twisting a special purple wire nut over each wires. The inside of the wire nut has a compound inside that forestalls oxidation which in turn could make the connections heat up. There are electricians out there who don't believe that is one of the best technique since you still could have issues long term. However, these are much better than receptacles that are made for copper wire. Look for the word 'aluminum' or the initials 'AL' on the plastic wire jacket.
Where wiring is visible, corresponding to within the attic or electrical panel, inspectors can look for printed or embossed letters on the plastic wire jacket. Aluminum wire may have the word 'aluminum,' or a specific brand name, similar to 'Kaiser Aluminum,' marked on the wire jacket. Where labels are exhausting to read, a lightweight may be shined along the length of the wire. Aluminum is delicate and malleable, meaning it is highly delicate to compression.
The materials can kind springs, intricate forms, or complex shapes. In addition to its flexibility, this kind of copper wire is corrosion resistant.
The selection of alloy usually alters the strength, solderability, durability, and wish for insulation. Some suppliers in this space distinguish themselves as copper alloy welding wire producers. Beryllium Copper Wire has the advantage of copper’s high strength combined with non-magnetic and non-sparking qualities.