I have seen a few questions regarding how close ethernet cables can be to power cables without a significant impact on the data. For example:
It seems that the short answer is basically that they should be separated generously.
However in my case I will be running them in "separate conduits", which will be ordinary PEX tubing (underground). Furthermore, the power in this case will be a weak (high gauge) extension cord. The application is that I am running these cables to some security cameras which are 500-600ft distance away, and I don't think the cameras draw a lot of power. At least, it wouldn't be as much as present in the main line from the street.
The first question I linked has a comment which cites a standard:
800.133(A)(2) states that Communications wires and cables shall be separated by at least 50mm (2 in.) from conductors of any electrical light, power, Class 1 non-power-limited fire alarm or medium-power network-powered broadband communications circuits. Exceptions are if separate raceways or conduit are used for separating the communications cables/wires from the power conductors.
Does this mean, in my case I can just put them in different PEX tubes and not worry about how close they are- they can be right next to each other? There will be no loops, just a straight run (with a few curves).
It matters to me in this case because it would affect the width of the trench I am to dig.
I wonder if my question is more appropriate for some kind of electronics forum but I appreciate any guidance.