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CCA vs Solid Copper | Network Installation | Data Cabling

When network infrastructure budgets are tight, it can be tempting to cut corners where you can. One way we’re seeing attempted cost savings is through the purchase of copper clad aluminium (CCA) cabling systems. Offered as a cost-effective replacement for solid copper cable, CCA cable is anything but an effective solution.

While CCA products might look like (and be advertised to function like) standard Category 5e or Category 6 cabling, there are major differences that could pose network problems, concerns about business continuity, and safety hazards, and is not a viable substitute for twisted-pair communications cabling.

Network Problems Caused by CCA

LACK OF COMPLIANCE CCA twisted pair cables do not comply with UL and TIA standards, which call for solid or stranded copper conductors. CCA twisted pair cables also lack a valid safety listing from the National Electrical Code (NEC) POOR FLEXIBILITY AND BEND RADIUS CCA conductors are brittle and break easily; it has been noted that even moving a patch panel or a faceplate can cause failures. Due to low tensile strength, CCA wires may also break off as a result of pulling or shearing, which can occur in packaging or during delivery. It’s also important to note that the bend radius of CCA cabling is limited. OXIDATION AND CORROSION Aluminium is very reactive, oxidizing when exposed to air. This may cause failed terminations in the network infrastructure, leading to connectivity problems. Lots of time can be spent locating and addressing these failures. NOT SUITABLE FOR PoE APPLICATIONS With much higher DC resistance than copper, conductors may be 60% larger than solid copper to compensate for higher resistance. If not resistance compensated, the voltage drop will be greater for any channel length. Longer lengths (~>65m) will exceed TIA’s channel DCR requirements, limiting the voltage available to the device. Higher resistance causes radiant heat to build up faster, and this may cause damage to the device, or even melting of the cable and this can pose as a fire hazard. CABLE RUNS On longer CCA cable runs near the 100-meter maximum, signal strength is reduced as compared to solid copper Cable. This can lead to data loss as a result of more packets of data needing to be re-transmitted.


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