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



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.



All the Advantages of Copper for Less

While Copper-clad aluminum isn't always the best solution, when installing communication cables CCA allows cables to utilize all of the benefits that copper has to offer, while maintaining a much more affordable price tag and helping to protect the world’s limited supply of copper. CCA is made by bonding a layer of pure copper onto an aluminum core. While drawn our CCA obviously contains less copper than pure copper cable, it delivers virtually the same conductivity with only slightly higher resistance. How is this possible? It has to do with an electrical phenomenon known as “skin effect.”



Skin Effect

The skin effect is the tendency of alternating current at high frequencies (the current used in Cat5e and Cat6 cables for data transfer) to become distributed in a conductor so that there is more current density near the surface (or skin) of the conductor. This density decreases as you go deeper into the conductor.


Because skin effect only happens at high frequencies, it's better to use the pure copper cable in all low-frequency applications, such as your home power cables. Because of skin effect, you can use a less expensive metal for the core and use copper on the outer layer to achieve virtually the same conductivity. Good quality CCA is all about finding a balance.




The Facts About Copper-Clad Aluminum (CCA)

Advantages: good electrical conductivity, lightweight, small specific gravity, low price, convenient processing, and production of raw materials, based on copper wire production, is an excellent material to replace copper conductors. and 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. In our competitive and fast-moving environment, you need to strike a balance between performance, cost, and time. With high performance and reliability combined with reduced installation cost and time, Zion communication's high-quality CCA with more copper can help you find that balance.


Stephen Xie

Product Director

Email: stephen@zion-communication.com

Product List: Click


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