News & Views

Power over the Ethernet is coming with systems able to deliver up to 100 Watts connecting to devices such as lighting, computers, phones and televisions able to connect to the internet and power up via the one cable carrying < 50v AC or 120v DC or Extra Low Voltage (ELV).

•    Lower maintenance
•    Easier to use backup battery power 
•    Safer voltages for the public to use

Heat Dangers
At 60 watts or over 100 cable bundles operate at temperatures above that at which many cables are rated for.  This creates fire and performance issues.  At 100Watts recommended bundle sizes are:
•    Cat 5     58 cables
•    Cat 6     100 cables
•    Cat 8     280 cables 

To maintain maximum temperature rise of 15 degrees Installers will need to consider bundle size, environmental temperatures and power levels to ensure public safety and installation performance.
Connectors that feature a solid metal body may need to be used to dissipate heat more efficiently than plastic connectors.  Connectors should also be tight to avoid intermittent disconnections causing arcing and cheaper patch cords should be avoided as they may fail over time creating hazards and performance issues.  Category 6A systems are recommended for all POE installations for safety, performance, cable lifespan and reduced need for facility cooling.

ACRS and NECA will be lobbying safety regulators to ensure that regulations are in place to protect the public by requiring workers to have the relevant skills and licences to safely install POE in Australia.  These matters have already been raised via the Queensland Electrical Safety Board at their recent strategic planning session in November 2016 and ACRS and NECA will follow these issues up in all states and keep you informed.