Cat 5/5e/6 cable & in wall/CM Rating

If it were my house I would have run solid copper to begin with.

I wouldn't be too concerned though, like you said they've been working fine for years. The highest power draw on the cams will be at night when the IRs are on, and as it happens it's cooler at night than during the day so it kind of cancels out any heat buildup. During the day they'll only draw 4 or 5 watts. I think worst case you've got a kink or bad spot and eventually a conductor will fail at that point and the camera will stop working.

Just replace them as part of the "a few more security cams" project. Your wife doesn't need to know her life was in danger

Been running drops today. Can I just say, I hate my attic and I hate ladders.

I cut my head on a roofing nail popped thru the OSB....

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I cut my head on a roofing nail

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Back in the day when I started my company I did installs with my guys. We're talking the early days of DirecTV and we used to install TV antenna in attics. I now religiously wear a hat on my head from the many times I bumped and cut my head on the various items in them. I'l add that you haven't felt heat until you've had to work in an attic when it's 100 degrees and humid outside. We would do it in 10 minute rotating shifts and still be drenched in sweat.

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Should I commit a weekend this spring to re running everything or just let it ride? Everything is already fished through the tight spots and I could use the old cable to fish it were I need it to go.

If it were your house, what would you do?

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It's always better to err on the side of caution when it comes to electrical safety, especially in your home where you and your loved ones spend a lot of time. While it's true that using CCA (copper-clad aluminum) cables instead of pure copper cables can increase the risk of fire, it's difficult to say how likely that is in your specific case.

If you want to be absolutely sure that you are using safe and reliable cables, it's probably a good idea to replace the CCA cables with pure copper cables that are rated for in-wall use. This will ensure that you are meeting the industry standards and reducing the risk of fire or other electrical hazards.

However, if you decide to keep the CCA cables, there are some steps you can take to reduce the risk of fire. For example, you can make sure that the cables are not tightly bundled together, which can increase heat buildup and the risk of fire. You can also use cable ties or other methods to keep the cables neatly organized and prevent them from becoming tangled or damaged.

Ultimately, the decision to replace the cables or not is up to you. If you're not sure, it's always a good idea to consult with a licensed electrician or other professional who can provide expert advice based on your specific situation.

I would run raw CAT6 and terminate it my self. Running premades can easily damage the ends.