The CCA Wire conductor is fragile and easy to break; it has been noted that even moving the distribution frame or panel may cause failure. Due to the low tensile strength, the CCA wire may also be broken due to tensile or shearing force, which may occur during packaging or transportation. It is also important to note that the bending radius of CCA cables is limited.
Oxidation and corrosion
Aluminum is highly reactive and will oxidize when exposed to air. This may cause the terminals in the network infrastructure to fail, which can cause connection problems. It can take a lot of time to locate and resolve these faults.
Not suitable for PoE applications
Since the DC resistance is much higher than copper, the conductor can be 60% larger than solid copper to compensate for the higher resistance. If there is no resistance compensation, the voltage drop will be greater for any channel length. Longer lengths (~>65m) will exceed TIA's channel DCR requirements, thus limiting the voltage available to the device. A higher resistance will cause radiant heat to accumulate faster, which may damage the device.
Shorter cable runs
Compared to solid copper with a maximum length of 5 meters, longer CCA cables will reduce signal strength when running near a maximum of 100 meters. As more data packets need to be retransmitted, data loss may result.
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