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Why do people hate Copper Clad Aluminum Ethernet Cables for PoE cameras? (alien.top)

submitted 1 year ago by thesunsoutgunsout@alien.top to c/homenetworking@selfhosted.forum

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On the Reolinkcam subreddit they are big on if you are wiring your house internally with ethernet cable do not use Copper Clad Aluminum cable only full copper cabling?

Why is this?

Does it make that much of a difference?

Genuinely curious to know as locally for me the cost is quite high for full copper cabling

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[–] discojohnson@alien.top 1 points 1 year ago

The cabling in your wall is, for all intents and purposes, never going to be messed with again and lives in a place that isn't accessible. Ignoring any fire or heat related considerations, aluminum and copper expand and contract at different rates. Eventually that cable will fail as the heat from the extra power for PoE will cause deterioration. You'll just replace the patch cable at the end when that happens, but the main run is a much bigger deal to replace. Don't save a dollar now to spend it many times over later.