Category: Copper

Tips to Identify Copper Clad Aluminium (CCA) Cables

If it sounds too good to be true, it might be. Don’t get too excited if you find Category 6 cable available online for practically half what you’ve been paying for that brand name. Even if it claims TIA-568-C compliance, includes the UL listing mark and even has a ETL verification legend printed right on the cable, make sure that cable isn’t made with copper clad aluminum (CCA). Cables made with CCA conductors are simply not worth the risk, even at the lower price. Not only are they non-standards compliant, but they often do not have a valid UL safety listing per the National Electric Not Worth the Savings or the RiskCode (NEC)..

Practical impacts of bend radius on twisted-pair cable installation

Installers must consider more than just the cable in order to comply with bend-radius requirements. Support hardware, connectivity, and other equipment matter too.The requirement for maintaining proper bend radius is defined in the Generic Telecommunications Cabling for Customer Premises standard, ANSI/TIA-568.0-D. The standard’s “D” revision was published in 2015 and specifies that the minimum inside bend radius for balanced unshielded twisted-pair cable is four times the overall cable diameter.

Copper cabling’s future stretches far beyond the data center

Twisted-copper cabling may not be used in data centers for much longer, but there are plenty of applications where twisted pair cabling is emerging as a strong contender. Increasingly, building applications are connecting to their facilities’ IP networks. This means connecting, integrating, controlling, and powering non-traditional IP devices such as lights, cameras, and many others to the network for maximum efficiency. Embedded sensors in these devices will collect billions of data points that will produce actionable analytics to drive productivity improvements. Copper cabling’s ability to deliver power to end devices is providing the medium with opportunities to serve multiple building systems. PoE is emerging as the most important enabler of devices that use structured cabling in enterprise buildings today, which is critical as IT managers look to drive more value out of their installed copper cabling plant and connect more devices.

White Paper: A Guide to Successful Installation of Power over Ethernet

In most cases, using PoE eliminates the need for an AC outlet, eliminating the cost and labor of that duplicative run. It also can eliminate the separate power supply for the device, which means one less point of failure. And since PoE uses lower, safer voltages, it does not need the strict requirements, such as conduit and electrical boxes required by line powered devices.

Proposed legislation in Texas would classify some PoE cabling as electrical work

Bills making their way through Texas’s Senate and House of Representatives will, if passed as currently written, categorize any cabling circuit capable of supplying more than 50 watts of power to be electrical work requiring a licensed electrician. As a practical matter, that would mean any cabling circuits that can support Type 3 or Type 4 power sourcing equipment (PSE) or powered devices (PDs), as defined in IEEE 802.3bt, would fit that definition. As specified in IEEE 802.3bt, a Type 3 PSE provides a maximum of 60 watts and a Type 3 PD receives a maximum of 51 watts, while a Type 4 PSE provides a maximum of 90 watts and a Type 4 PD receives a maximum of 71.3 watts.