How should I specify a UTP system to be the most secure in regards to Surge Protection?
Firstly, you should specify all UTP devices be compliant with both Differential and Common Mode protection. Secondly, make sure that each UTP device has a connection to earth ground. Note that connection of both ends to earth ground does not increase the chance of a ground loop, since the ground connections are electrically inactive until there’s a power surge. So, video quality will be unaffected.