Is Lightning A Bigger Problem With Power Over Ethernet Cameras?

A member recently wrote an email asking for experience dealing with lightning strikes and PoE powered cameras, specifically if PoE is more vulnerable to lightning damage versus non-PoE devices, and if cable sizes play a role:

  • What percentage of the failures, were POE powered? (Note: I was reviewing the design of a LINEAR POE chip, and could see the "poor link in the chain" with that particular chip, so to speak...)
  • What percentage of failures were due to using CAT5 unshielded?
  • Are there lessor tendencies of failures with CAT6 and good drain/bonding approaches? (I would be most curious to learn!)
For you installers in lightning active areas, do you see a correlation between PoE and lightning damage vulnerability?
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