3 ways to test copper-clad aluminum cable, How to avoid buying inferior CCA cable?

Updated: Jul 23

Like most industries, the wiring industry doesn’t change instantly. As new technologies come onto the scene they must prove their value over time before they become accepted. For a long time, copper-clad aluminum cable (CCA) has been met with skepticism by many professionals. However new evidence is proving that CCA has definite benefits over pure copper in certain applications. And Too much copper is a waste of materials, yet too little copper decreases the cable's efficiency and quality. Unfortunately, many cable manufacturers try and cut corners by using as little copper as possible. Most CCA cable uses only 10 to 15% copper by weight. That means that only about 60-65% of the current is going through copper in these cables. Our CCA cat6 and cat5e cables use 24% copper by weight (close to twice the amount of copper), giving you guaranteed performance without having to pay outrageous prices.

3 ways to test copper-clad aluminum cable

Copper-clad aluminum, copper-clad aluminum-magnesium, and copper-clad steel seem to be copper wire in appearance, and it is easy to mix the two in an unprofessional situation. 1. Look at the section: Because the thicker wires use copper-clad aluminum, it is easy to see. Therefore, the general copper clad aluminum is a soft wire, which has many small filaments and multiple strands. However, as long as the cross-section is cut, it is possible to identify what material is whitish (aluminum color).

2, fire method: only need to use a lighter to burn, look at the burning phenomenon and the results after combustion, copper-clad aluminum and copper-clad aluminum-magnesium wire, when the flame is in contact with the wire, the conductor will hang down straight, not easy to blow, burn After that, the body color is gray or darker; because the melting point of aluminum is lower than the melting point of copper. The difference: the conductor after the copper-clad aluminum burns will break with a finger, which is brittle and will break into multiple sections. If the oxygen-free bare copper wire is burned to form a bead, it is a copper wire, and the thickness of the copper wire is not the same after burning, and the filament is melted and the thick wire is as it is. 3.Scratch with a tool: After the tinned copper wire is scraped, it appears yellow and is copper. The anaerobic bare copper wire is still the primary color and copper after scratching. Copper-clad aluminum wire and copper-clad aluminum-magnesium aluminum appear white snow. The same effect can be obtained by rubbing the wire on the concrete floor. The copper-clad steel wire can also be identified by this method or by a magnet.